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HP HP 8753E Service Manual Download Page 335

 Divide-by-N Circuit Check

Note

The 

 assembly should still be out of the instrument and the

 assembly on an extender board.

1. Ground 

 and confirm (as in the 

 VCO Exercise) that the VCO

oscillates at approximately 50 to 55 MHz.

2. Put the analyzer in CW mode (to avoid 

 transitions) and activate the

F’RACN TUNE service mode.

3. Connect an oscilloscope to 

 and observe the output.

4. With the F’RACN TUNE service feature, vary the frequency from 30 MHz to

60.8 MHz.

5. 

The period of the observed signal should vary from 5.5   to 11 

q 

If this procedure produces unexpected results, the 

 assembly is faulty.

q 

If this procedure produces the expected results, perform the 

Digital Control 

 Check. 

6. Remember to replace the 

 assembly.

 Digital Control Signals Check.

The 

 assembly generates a 

 

 start 

 signal every 10

microseconds. If the VCO is 

 and the CST 

 is not detectable at

 the 

 assembly is non-functional.

Use the CST signal as an external trigger for the oscilloscope and monitor the

signals in 

 7-6. Since these 

 signals are generated by 

 to control

 check them at 

 

 Place 

 on the large extender board. The

signals should look similar to 

 7-21. If these signals are good, the 

assembly is defective.

Source Troubleshooting 

Summary of Contents for HP 8753E

Page 1: ...site in an effort to help you support your product This manual provides the best information we could find It may be incomplete or contain dated information and the scan quality may not be ideal If we find a better copy in the future we will add it to the Agilent website Support for Your Product Agilent no longer sells or supports this product You will find any other available product information ...

Page 2: ...Service Guide HP 8753E Network Analyzer HEWLETT PACKARD ...

Page 3: ...kes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Copyright 1998 1999 Hewlett Packard Company ...

Page 4: ...stalling conGguring and verifying the operation of the analyzer The User s Guide shows how to make measurements explains commonly used features and tells you how to get the most performance from your analyzer The Quick Reference Guide provides a summary of selected user features TheHP IBProgramm iug and Command Reference Guide provides programming information for operation of the network analyzer ...

Page 5: ...torial introduction using BASIC programming examples to demonstrate the remote operation of the network analyzer The System Veracation and Test Guide provides the system verification and performance tests and the Performance Test Record for your analyzer ...

Page 6: ...dies Service and Support Options Option W32 Option W34 2 System VeriIkation and Performance lksts System Specifications Instrument SpecBcations System Verification Procedure Performance Tests How to ConfIrm Performance to System Specifications How to ConfIrm Performance to Instrument Specifications Certificate of Calibration Sections in This Chapter Performance Test Record System Verification Cycl...

Page 7: ...wer Meter Calibration for Test Port 1 from 300 kHz to 3 GHz Test Port 2 Input Frequency Response from 300 kHz to 3 GHz Power Meter Calibration on Port 2 from 300 kHz to 3 GHz Test Port 1 Input Frequency Response from 300 kHz to 3 GHz Power Meter Calibration for Test Port 2 from 3 GHz to 6 GHz Test Port 1 Input Frequency Response from 3 GHz to 6 GHz Power Meter Calibration on Test Port 1 from 3 GHz...

Page 8: ...Trace Noise for A R Magnitude from 3 GHz to 6 GHz 2 69 System Trace Noise for A R Phase from 3 GHz to 6 GHz 2 69 System Trace Noise for A R Phase from 30 kHz to 3 GHz 2 70 System Trace Noise for B R Magnitude from 30 kHz to 3 GHz 2 70 System Trace Noise for B R Magnitude from 3 GHz to 6 GHz 2 70 System Trace Noise for B R Phase from 3 GHz to 6 GHz 2 70 System Trace Noise for B R Phase from 30 kHz ...

Page 9: ...rs with a Frequency Range of 30 kHz to 3 GHz Performance l t Record For Analyzers with a Frequency Range of 30 kHz to 6 GHz Adjustments and Cmmction Constants Post Repair Procedures for HP 8753E A9 Switch Positions Source Default Correction Constants Test 44 Source Pretune Default Correction Constants Test 45 Analog Bus Correction Constants Test 46 Source Pretune Correction Constants Test 48 RF Ou...

Page 10: ...ional N Spur Avoidance and FM Sideband Adjustment 3 54 Source Spur Avoidance Tracking Adjustment 3 58 Unprotected Hardware Option Numbers Correction Constants 3 60 Sequences for Mechanical Adjustments 3 62 How to Load Sequences from Disk 3 62 How to Set Up the Fractional N Frequency Range Adjustment 3 63 How to Set Up the High Low Band Transition Adjustments 3 63 How to Set Up the Fractional N Spu...

Page 11: ...nputTraces 4 16 Receiver Error Messages 4 17 Faulty Data 4 17 Accessories 4 18 Accessories Error Messages 4 18 5 Power Supply Troubleshooting Assembly Replacement Sequence 5 2 Simplified Block Diagram 5 3 StartHere 5 4 Check the Green LED and Red LED on Al5 5 4 Check the Green LEDs on A8 5 5 Measure the Post Regulator Voltages 5 5 If the Green LED of the Al5 Is not ON Steadily 5 7 Check the Line V...

Page 12: ...hecking A9 CPU Red LED Patterns Display Troubleshooting A2 A18 A19 A27 Evaluating your Display Backlight Intensity Check Red Green or Blue Pixels Specifications Dark Pixels Specifications Newton s Riis Troubleshooting a White Display Troubleshooting a Black Display Troubleshooting a Display with Color Problems Front Panel Troubleshooting Al A2 Check Front Panel LEDs After Preset Identify the Stuck...

Page 13: ...es 7 16 PLREF Waveforms 7 17 REFSiiAtAllTP9 7 17 HighBandREFSii 7 17 LowBandREFSiial 7 18 FNLOatA12Check 7 19 4 MHz Reference Signal 7 20 2ND LO Waveforms 7 21 90 Degree Phase Offset of 2nd LO Signals in High Band 7 21 InPhase2ndLOSignalsinLowBand 7 21 Al2 Digital Control Siials Check 7 23 LENREFLine 7 23 LHBandLLBLines 7 24 A13 A14 Fractional N Check 7 24 Fractional N Check with Analog Bus 7 24 A...

Page 14: ...Check A10 by Substitution or SiiaI Examination 8 8 Troubleshooting When One or More Inputs Look Good 8 11 Checkthe4kHzSiial 8 11 Check the Trace with the Sampler Correction Constants Off 8 12 Check 1st I 0 Siial at Sampler Mixer 8 14 Check 2nd LO Signal at Sampler Mixer 8 14 9 Accessories Troubleshooting Assembly Replacement Sequence Inspect the Accessories Inspect the Test Port Connectors and Cal...

Page 15: ...Bus Codes Error Messages 11 Error lkrms Error Terms Can Also Serve a Diagnostic Purpose FuII Two Port Error Correction Procedure Error l m Inspection If Error Terms Seem Worse than Typical Values Uncorrected Performance Error Term Descriptions Directivity EDF and EDR Description Significant System Components Affected Measurements Source Match ESF and ESR Description Significant System Components A...

Page 16: ... the HP 8753E Works 12 1 The Built In Synthesized Source 12 2 The Source Step Attenuator 12 2 The Built In Test Set 12 3 The Receiver Block 12 3 The Microprocessor 12 3 Required Peripheral Equipment 12 3 A Close Look at the Analyzer s Functional Groups 12 4 Power Supply Theory 12 5 Al5 PrereguIator 12 5 Line Power Module 12 6 Preregulated Voltages 12 6 Regulated 5 V Digital Supply 12 6 Shutdown In...

Page 17: ...n 12 16 Source High Band Operation 12 19 Source Operation in other Modes Features 12 22 Frequency Offset 12 22 Harmonic Analysis Option 002 12 22 External Source Mode 12 23 Tuned Receiver Mode 12 25 Signal Separation 12 26 TheBuiIt InTestSet 12 26 A21 andA22 IWPortCouplers 12 26 A23LEDFrontPanel 12 26 A24 Transfer Switch 12 26 A25 Test Set Interface 12 26 Receiver Theory 12 28 A4lA5lA6 Sampler Mix...

Page 18: ...sk Drive Support Hardware Memory Deck Hardware Preregulator Chassis Parts Outside Chassis Parts Inside Miscellaneous 13 2 13 3 13 3 13 5 13 6 13 8 13 10 13 12 13 14 13 16 13 18 13 20 13 22 13 24 13 26 13 28 13 30 13 32 13 34 13 36 13 38 13 40 1342 1344 1346 14 Assembly Replacement and Post Repair Procedures Replacing an Assembly 14 2 Procedures described in this chapter 14 3 LineFuse 144 Tools Req...

Page 19: ...embly A16 14 20 Ibols Required 14 20 Removal 14 20 Replacement 14 20 A3 Source Assembly 14 22 Tools Required 1422 Removal 1422 Replacement 14 24 A4 A5 A6 Samplers and A7 Pulse Generator 1426 Tools Required 14 26 Removal 14 26 Replacement 14 28 AS AlO All A12 A13 Al4 Card Cage Boards 14 30 lbois Required 1430 Removal 14 30 Replacement 14 30 A9 CPU Board 14 32 Tools Required 14 32 Removal 14 32 Repl...

Page 20: ...install the covers 1449 A21 A22 Test Port Couplers 14 50 Tools Required 14 50 Removal 14 50 Replacement 14 50 A23 LED Board 14 52 Tools Required 14 52 Removal 14 52 Replacement 14 52 A24 Transfer Switch 14 54 Tools Required 14 54 Removal 14 54 Replacement 14 54 A25 Test Set Interface 1456 Tools Required 1456 Removal 1456 Replacement 1456 A26 High Stability Frequency Reference Option lD5 Assembly 1...

Page 21: ...ent for Service 15 4 Safety Symbols 15 5 Instrument Markings 15 5 Safety Considerations 15 6 Safety Earth Ground 15 6 Before Applying Power 15 6 servicing 15 7 General 15 8 Compliance with German FTZ Emissions Requirements 15 9 Compliance with German Noise Requirements 15 9 Index Content 16 ...

Page 22: ... 35 2 15 Setup for Checking the R Sampler A4 2 36 2 16 Source Input Noise Floor Test Setup 2 38 2 17 Setup for Power Meter Calibration on Test Port 1 2 44 2 18 Test Port 2 Input Frequency Response Test Setup 2 47 2 19 Setup for Power Meter Calibration on Test Port 2 2 48 2 20 Test Port 1 Input Frequency Response Test Setup 2 49 2 21 Setup for Power Meter Calibration on Test Port 2 2 50 2 22 Setup ...

Page 23: ...rt 2 3 8 Connections for Sampler Correction at Port 2 for 6 GHz 3 9 Connections for the Second Through Cable 3 10 Setup for Cavity Oscihator Frequency Correction Constant Routine 3 11 Typical Display of Spurs with a Filter 3 12 Typical Display of Four Spurs without a Filter 3 13 lhrget Spur Is Fourth in Display of Five Spurs 3 14 Target Spur Is Almost Invisible 3 15 Location of the FN VCO TUNE Adj...

Page 24: ...ight Intensity Check Setup 6 9 6 5 Newtons Rings 6 11 6 6 Preset Sequence 6 13 7 l Basic Phase Lock Error Troubleshooting Equipment Setup 7 4 7 2 Jumper Positions on the A9 CPU 7 5 7 3 Sampler Mixer to Phase Lock Cable Connection Diagram 7 7 74 Waveform Integrity in SRC Tune Mode 7 9 7 5 Phase Locked Output Compared to Open Loop Output in SRC Tune Mode 7 9 7 6 1 V GHz at Analog Bus Node 16 with So...

Page 25: ...form 8 12 8 7 Typical Trace with Sampler Correction On and Off 8 13 9 l Typical Return Loss Traces of Good and Poor Cables 9 5 9 2 Typical Smith Chart Traces of Good Short a and Open b 9 7 10 l Internal Diagnostics Menus 10 2 10 2 A9 CPU Switch Positions 10 S 10 3 Service Feature Menus lo 18 104 Analog Bus Node 1 lo 27 10 5 AnaiogBusNode2 lo 28 10 6 Analog Bus Node 3 lo 29 10 7 AnalogBusNode4 lo 3...

Page 26: ...onal Group Simplified Block Diagram 12 3 Digital Control Group Simplified Block Diagram 12 4 Low Band Operation of the Source 12 5 High Band Operation of the Source 12 6 Harmonic Analysis 12 7 External Source Mode 12 8 Tuned Receiver Mode 12 9 Simplified Block Diagram of the Built in Test Set 12 10 Receiver Functional Group Simplified Block Diagram 13 1 Module Exchange Procedure 11 12 11 13 11 14 ...

Page 27: ...eference Frequencies 7 15 7 4 AlX Related Digitd Control SiiaIs 7 23 7 5 VCO Range Check Frequencies 7 25 7 6 A14to A13 Digital Control Siiai Locations 7 30 7 7 1st IF Waveform Settings 7 35 7 8 All Input Signals 7 36 8 l SiiaIs Required for A10 Assembly Operation 8 9 8 2 2nd IF 4 kHz Siiai Locations 8 11 8 3 2nd LO Locations 8 14 9 l Components Related to Specific Error Terms 9 4 10 l Test status...

Page 28: ...drivers small medium and large 5 164nch open end wrench for SMA nuts 2 mm extended bit allen wrench 3 16 5 16 and 9 16 h hex nut drivers 5 164nch open end torque wrench set to 10 in lb 2 5 mm hex key driver Non conductive and non ferrous adjustment tool Needle nose pliers Tweezers Antistatic work mat with wrist strap Service Equipment and Analyzer Options l 1 ...

Page 29: ... A P T Power Sensor Frequency 300 kI 3 Ma 600 W 8482A A P T Power Sensor for Option 006 Frequency 3 G 6 GBz m848lA A P T PowerSensor Prequency 303 kIh 3 GBz 760 BPS483AOpt BO3 A P Photometer Photometer Probe hi t Occluder Printer Floppy Disk Mibration Kit 7 mm 600 Calibration Bit N Type 600 Calibration Bit Type N 760 Verification Bit 7 mm Low Pam Filter Step Attenuator P Performance lb a A Adjustm...

Page 30: ... to 3 6 nun f BNC to Alligator Clip APGS 6 m to Type N f APGS 6 Q to Type N Q BNC m to Type N f M N Q to Type N Q 24 inch APG7 APG7 6ou 24 inch APG7 6OQ 2 24 inch Type N 7W 2 24 inch Type N 600 3 be N LOU BNC BNC m to BNC m 600 Eecvmmended Model l lP 8402A Opt 020 HP 84QlA Opt 020 BP 11667A HP 11862B ElP 11624A EIP 11626A ElP P N 126 1746 HP P N 1260 1747 ElP P N 8120 1292 la P N l26 1760 El F P N...

Page 31: ... Ground Wire critical speciflcatioM Recommended Use Model BP P N 0so 1367 A T P HP P N 030 0080 A T P HP P N 03oo o707 A T P Non Met c Adjustment lbol BNC Alligator Clip Adapter BNGto BNC Cable 8 P Performance lb s A A ustment T Troubleshooting HPP N8830 0024 A BF P N 8120 1292 A HP P N 81213l IO A 14 Service Equipment and Analyzer Options ...

Page 32: ...g and gaging connectors Having good connector care and connection techniques extends the life of these devices In addition you obtain the most accurate measurements This type of information is typically located in Chapter 3 of the calibration kit manuals For additional connector care instruction contact your local Hewlett Packard Sales and Service Office about course numbers HP 8505OA 24A and HP 8...

Page 33: ...tor threads connector CI Do Not Use any abrasives Get liquid into plastic support beads Gaging Connectors Do Clean and zero the gage before use Use the correct gage type Do Not Use an out of spec connector Use correct end of calibration block Gage all connectora before first ufx Making conueetions I Do Do Not Align connectors carefully Apply bending force to connection Make preliminary connection ...

Page 34: ...sponse of a network by computing the inverse Fourier transform of the frequency domain response It shows the response of a test device as a function of time or distance Displaying the reflection coefficient of a network versus time determines the magnitude and location of each discontinuity Displaying the transmission coefficient of a network versus time determines the characteristics of individua...

Page 35: ... Without Handles This option is a rack mount kit containing a pair of flanges and the necessary hardware to mount the instrument with handles detached in an equipment rack with 482 6 mm 19 inches horizontal spacing Option lCP Rack Mount Flange Kit With Handles This option is a rack mount kit containing a pair of flanges and the necessary hardware to mount the instrument with handles attached in an...

Page 36: ...lity The following service and support options are also available Contact your local sales or service office Option W32 This option provides three years of return to HP calibration service Option W34 This option provides three years of return to HP Standards Compliant Calibration Service Equipment and Analyzer Options 1 9 ...

Page 37: ...he Instrument Specifications System Specifications System Specifications also called Measurement Port Specifications are described in Chapter 7 of the HP 8753E User s cuides They specify warranted performance of the entire TTMXISU tqpctem when making error corrected S parameter measurements The measurement system includes the analyzer test cables and calibration kit System Specifications are expre...

Page 38: ... measurement system as dellned above against the System Specillcations If conllrmation is successful the measurement system is capable of making S parameter measurements to the accuracy specified by the graphs of measurement uncertainty An outline of the System Verification Procedure follows w The measurement system is calibrated with the calibration kit to be used for future measurements The meas...

Page 39: ...cations as deEned above If the calibration kit to be used for measurements is also certiEed successful completion of the Performance Tests also ensures that the network analyzer measurement system meets the System Specifications How to Confirm Performance to System Specifications w Complete the System VeriEcation Procedure in this chapter using a certiEed verification kit or n Complete all of the ...

Page 40: ...he CertiEcate of Calibration will not include a System Attachment The equipment and measurement standards used for the tests must be certiEed and must be traceable to recognized standards Note If you have a measurement application that does not use all of the measurement capabilities of the analyzer you may ask your local Hewlett Packard Customer Service Center to verify only a subset of the speci...

Page 41: ...bration Coefficients 10 System Trace Noise only for Analyzers without Option 006 11 System Trace Noise only for Analyzers with Option 006 12 Test Port Input Impedance 13 Test Port Receiver Magnitude Dynamic Accuracy 14 Test Port Receiver Magnitude Compression 15 Test Port Receiver Phase Compression 16 Test Port Output Input Harmonics Option 002 Analyzers without Option 006 only 17 Test Port Output...

Page 42: ...rd Find and use the appropriate Performance I t Record in the following subchapters n Performance Test Record for 30 kHz to 3 GHz n Performance Test Record for 30 kHz to 6 GHz 2 6 System Verification and Performance Tests ...

Page 43: ...nalyzers with Option 075 75 ohm analyzers if minimum loss pads and type N m to APC 7 adapters are used Check to see how the veriEcation kit floppy disk is labeled n If your veriEcation disk is labeled HP 8753D Verification Data Disk or HP 8753D HP 8753EVerificationDataDisk you may proceed with the system verification n If your veriEcation disk is not labeled as indicated above you may send your HP...

Page 44: ... HP ThinkJet DeskJet LaserJet Additional Equipment Required for Option 075 Analyzers Minimum Loss Pad 2 50 Q to 75 Q HP 11852B Adapter 2 APC 7 to Type N m HP 11525A Anulgzer warmup time 1 hour This system veriEcation consists of three separate procedures 1 Initialization 2 Measurement Calibration 3 Device Verification 2 9 System Verification and Performance Tests ...

Page 45: ...ry to a floppy disk d If the instrument state file was not saved to disk with the same name that it had while in internal memory you may wish to rename the tie Press enter the de e j y name and press 3 8J _ e Repeat steps a through d for each instrument state that you wish to save To clear alliM rnal memory press s 3JSlJKJ j3 _ _ _ _ _ _ __ _ jgj lJmm LPreset _ _ __ _ _ _ System Verificationand 2 ...

Page 46: ...ick Reference information in Chapter 1 Good connections and clean undamaged connectors are criticaI for accurate measurement results Insert the verification kit disk into the analyzer disk drive Note If you switch on the record function you CAiWOT switch it off during the verification procedure 7 Position the paper in the printer so that priuting starts at the top of the page 2 10 System Verificat...

Page 47: ...o the HP 8753ENetuwrk Anulgzer User s Guide for more information on how to perform these tasks 10 The analyzer displays Sys Ver Init DONE the initialization procedure is complete Caution Do NOT press Preset or recall another instrument state You must use the instrument state that you loaded during the initialization procedure Measurement Calibration 14 Connect the open end of the open short combin...

Page 48: ...nnect the 50 ohm termination supplied in the calibration kit to reference test port 1 19 Pres 20 When the analyzer 6nishes measuring the standard connect the open end of the open short combination to reference test port 2 21 mess _ 22 When the analyzer hnishes measuring the standard connect the short end of the open short combination to reference test port 2 24 When the analyzer Gnashes measuring ...

Page 49: ... Figure 2 3 Transmission Calibration Setup 28 Press ii _ A c il_ i ii __G_ Au i ___ 29 mess _i _ _ __ _ I L iL g qs y c y 3 J Press to e i s 2 A _ __ _ __ i vLv _ L i A L A i i save the calibration into the analyzer internal memory y y 3 1 men the a rzr mhes saving the instrument state prt SS j gBg ss _i i a A i i i __ _ _ _ _ System Verification and 2 13 Performance Tests ...

Page 50: ...r measures all S parameters magnitude and phase without pausing Also the analyzer only displays and prints the PASS FAIL information for the S parameter measurements that are valid for system verification HPR753F NETWORK ANALYZER Figure 2 4 Connections for the 20 dB Verification Device 35 When the analyzer fmishes all the measurements connect the 50 dB attenuator supplied in the vetication kit as ...

Page 51: ...shown in Figure 2 6 Be sure that you connect Port A of the verification mismatch to reference test port 1 H P 8753E NETWORK ANALYZER T2 sg66e Figure 2 6 Mismatch Device Verification Setup 1 39 When the analyzer finishes all the measurements connect the mismatch verification device as shown in Figure 2 7 Notice that Port B is now connected to reference test port 1 Syetem Verification and 2 l 5 Perf...

Page 52: ...FICATION MISMATCH sg67e Figure 2 7 Mismatch Device Verification Setup 2 i A i _ 40 press 131 xl J _ _ _ _ L i A _ A 41 You have completed the system verification procedure when the analyzer displays Ver Def 4 DONE 2 16 System Verification and Performance Tests ...

Page 53: ...tion procedure If the analyzer still fails the test check the measurement calibration as follows a Press preset d Connect the short to reference test port 1 g Check that the trace response is 0 00 f 0 05 dB h Disconnect the short and connect it to reference test port 2 j Check that the trace response is 0 00 f 0 05 dD k If any of the trace responses are out of the specified limits repeat the Measu...

Page 54: ...cy Counter 500 MHz to 6 GHz HP 5350B 51B 52B Cable 500 Type N 24 inch HP P N 81204781 Adapter APC 3 5 f to Type N f HP P N 1250 1745 Adapter APC 7 to Type N f HP P N 11524A Adapter Type N f to BNC m HP P N 1250 1477 Additional equipment needed for an HP 8753E with Option 075 Minimum Loss Pad 5OQ to 75Q HP 11852B Aruzlgzer warmup time 30 minutes Perform this test to verify the frequency accuracy of...

Page 55: ... 8753E NETWORK ANALYZER FREQUENCY COUNTER ADAPTER APC 3 5 f TO TYPE N f D I R E C T ONNECTlON ig68e Figure 2 8 lkst Port Output Frequency Range and Accuracy I t Setup 2 Press IFKGQ Menu t Xmi 3 Press 13oJ Ck m and write the frequency counter reading on the Performance Test Record n 4 Repeat step 3 for each instrument frequency listed in the Performance Test Record n System Verification and 2 19 Pe...

Page 56: ...if the deviation increases with frequency the master time base probably needs adjustment In this case refer to the Frequency Accuracy Adjustment procedure located in Chapter 3 Adjustments and Correction Constants The Fractional N Frequency Range Adjustment also affects frequency accuracy 3 Refer to Chapter 7 Source Troubleshooting for related troubleshooting information 2 20 System Veriication and...

Page 57: ... P N 8120 4779 Adapter APC 3 5 f to APC 7 HP P N 1250 1747 Adapter APC 3 5 m to APC 7 HP P N 1250 1746 Aruzlgzer warmup time 30 minutes Perform this test to verify that the analyzer s reference channel input R is capable of phase locking to an external CW signal 1 On the external source press Presets Icw LloJ j J POWER LEVEL m 12o i 2 Connect the equipment as shown in F igure 2 9 System Verificati...

Page 58: ...er displays any phase lock error messages write unlock in the Performance Test Record for the set CW signal w If the analyzer does not display any phase lock error messages write lock in the Performance Test Record for the set CW signal 6 On the external source press m L20 j 7 On the analyzer press I2oJ m 8 Repeat step 5 through 7 for the other external source CW frequencies listed in the Performa...

Page 59: ... sure the external source power is set within 0 to 25 dBm 2 Make sure the analyzer s Ext Source Auto feature is selected In addition verify that the analyzer is set to measure its input channel R 3 Verify that all connections are tight System Veriication and 2 23 Performance Tests ...

Page 60: ......

Page 61: ...to the power meter operating manual Connect the equipment as shown in Figure 2 10 ADAPTER APC 7 H P 8753E NETWORK ANALYZER H P 43BA H P 8753E NETWORK ANALYZER W I T H O P T I O N 0 7 5 POWER SENSOR Figure 2 10 Source Output Power Accuracy lkst Setup System Verification and 2 25 Performance Tests ...

Page 62: ...sted in the Performance Test Record For analyzers with Option 006 use the HP 8481A power sensor for all frequencies above 3 GHz In Case of Difficulty 1 Be sure the source power is switched on Press IMenu Check A vs iii A A the softkey on should be highlighted Otherwise press i_ a j y 2 s to switch on the source power J 2_ii _ i _ _i 2 Refer to Chapter 7 Source Troubleshooting for more troubleshoot...

Page 63: ...equired Equipment Power Meter HP 437B 438A Power Sensor HP 8482A Adapter APC 7 to Type N f HP 11524A Additional Required Equipment for Analyzers with Option 006 Power Sensor HP 8481A Additional Required Equipment for Analyzers with Option 075 Power Sensor HP8483A Option HO3 Analgzm warmup time 1 hour Perform this test to verify the analyzer s test port output power range and power level linearity ...

Page 64: ... this CW frequency 3 Connect the equipment as shown in Figure 2 11 PORT 2 P A D A P T E R APC 7 t o N F H P 8481A POWER SENSOR 3 6GHz H P 8482A POWER SENSOR 30KHz 3GHz H P 0753E NETWORK ANALYZER H P 438A H P 8753E NETWORK ANALYZER W I T H O P T I O N 0 7 5 POWER SENSOR H P 438A DIRECT CONNECTION sg61 l e Figure 2 11 l t Port Output Power Range and Accuracy Ikst Setup 2 28 System Verification and P...

Page 65: ...0 dRm 10 Press a _ _ _ __ _ 11 Set the power meter calibration factor for this CW frequency and press m to set the reference at this new frequency 12 Press m g Y L 15 Lxl _ 13 Write the power meter reading in the Results Measured column on the Performance Test Record n 14 Calculate the difference between the analyzer test port power and the power meter reading Write the result in the Power Level L...

Page 66: ...g out of the analyzer s test port 1 Be sure you did not accidentally switch off theCCCCmaIyzer s internal source If you did so press 1Menu j j Ep _ _ _ _ u _ 3 Repeat this performance test 2 30 System Verification and Performance Tests ...

Page 67: ...P N 1250 1746 Cable APC 7 24 inch HP P N 8120 4779 Required Equipment for 75 ohm Analyzers Option 075 Minimum Loss Pad 5OQ to 75Q HP 11852B Cable 508 Type N 24 inch HP P N 8120 4781 Adapter APC 3 5 m to Type N f HP P N 1250 1750 An m warmup time 1 hour Perform this test to determine the minimum R channel input power level at which phase lock can be accomplished 1 Connect the equipment as shown in ...

Page 68: ...ess LMenu E fg TJ The analyzer displays the message CAUTION NO IF FOUND CHECK R INPUT LEVEL 7 Press J to increase the test port power by 1 dBm 8 If the analyzer displays a phase lock error message continue increasing the test port power until phase lock is achieved 9 Write the test port power that is displayed on the analyzer on the Performance Test Record n 10 Repeat steps 5 through 9 for the oth...

Page 69: ...wn in Figure 2 13 between the R sampler assembly A4 and the All phase lock assembly Make sure it is connected between AllJl PL IF IN and 1st IF Out Caution a0 not push cable W8 down next to the All phase lock assembly System Verificationand 233 Performance Tests ...

Page 70: ...A10 A8 All A12 Figure 2 13 Flexible RF Cable Location 2 34 System Verification and Performance Tests ...

Page 71: ...in and the cable connector and make sure it is not close to zero 3 Check the R sampler by substituting it with the B sampler A6 a Move cable W8 to the B sampler A6 as shown in Figure 2 14 All sg6115 z Figure 2 14 Connections for Substituting the B kmpler A4 4 Connect the equipment as shown in F igure 2 15 System Verification and 2 35 Performance Tests ...

Page 72: ...z to 6 GHz c 22 dBm 6 If the analyzer fails the test replace the All assembly 7 Verify that the high Iow band adjustments are still within specifications For more information on how to perform this task refer to the High Low Band Transition Adjustment located in Chapter 3 Adjustments and Correction Constants n 8 Refer to Chapter 7 Source Troubleshooting for more troubleshooting information 2 36 Sy...

Page 73: ... 7 7 dBm 3 0 GHz to 6 0 GHzl Port 1 10 Hz 97 dBm 3 0 GHz to 6 0 GHzl Port 2 3kHz 7 7 dBm 3 0 GHz to 6 0 GHz Port 2 10 Hz 97 dBm 1 Only for analyzer with Option 006 30 kHz to 6 GHz range Equipment Required for 508 Analyzers Calibration Kit 7 mm HP85031B Equipment Required for 75 ohm Analyzers Calibration Kit Type N HP 85036B An zerwarmuptime 1 hour Perform this test to determine the HP 8753E port 1...

Page 74: ...ue which appears on the analyzer display 6 Convert the measured linear magnitude mean value to log magnitude using this equation Power dBm 20 log near magnitude mecrn value Note Notice that the mean value that is displayed on the analyzer is in Units So for example if the displayed value is 62 rU the value that you would put in the equation is 62 x 106 7 Write this calculated value on the Performa...

Page 75: ...nitude mean value 12 Write this calculated value on the Performance Test Record Port 2 Noise Floor Level from 300 kHz to 3 GHz IFBW 1OHz 15 When the analyzer finishes the sweep notice the mean value 16 Convert the measured linear magnitude mean value to log magnitude using this equation Power dBm 20 log Zinear magnitude mean value 17 Write this calculated value on the Performance Test Record Syste...

Page 76: ...rd n 23 This completes the Test Port Input Noise Floor Level procedure if your analyzer does not have Option 006 Otherwise continue with the next section Port 2 Noise Floor Level from 3 GHz to 6 GHz IF BW 3 kHz 24 Pressm m Stop l J 25 Ress m s i i 4 s i i__i i 26 When the analyzer Rnishes the sweep notice the mean value 27 Convert the measured linear magnitude mean value to log magnitude using thi...

Page 77: ...nu _ ei_i __ _ _ _ 36 When the analyzer finishes the sweep notice the mean value 37 Convert the measured linear magnitude mean value to log magnitude using this equation Power dBm 20 logI Zinear magnitude mean value 38 Write this calculated value on the Performance Test Record Port 1 Noise Floor Level from 3 GHz to 6 GHz IF BW 3 kHz s 39 press j m _ 40 Press LMenu aw L m 2 _ 41 When the analyzer h...

Page 78: ... and Correction Constants n 2 Repeat the Test Port Input Noise Floor Level procedure 3 Suspect the A10 Digital IF assembly if the analyzer fails both test port input noise floor tests 4 Refer to Chapter 8 Receiver Troubleshooting for more troubleshooting information 242 System Verification and Performance Tests ...

Page 79: ...HP 436AI437W438A Power Sensor HP 8482A Cable APC 7 24inch HP P N 81204779 Adapter APC 7 to Type N f HP 11524A Additional Equipment Required for Analyzers with Option 006 Power Sensor HP 8481A Equipment Required for 75Q Analyzers Power Meter HP 436AJ437Bl438A Power Sensor HP8483AOptionH03 Cable Type N HP P N 8120 2408 Anulgger warmup time 1 hour Perform this test to examine the vector sum of all te...

Page 80: ... NETWORK ANALYZER H P 8753E NETWORK ANALYZER W I T H O P T I O N 0 7 5 Figure 2 17 Setup for Power Meter Calibration on I t Port 1 3 Press m m 1300_ Lk m 4 Only for Analyzers with Option 006 Press Stop_ T J J 5 Press _ i__ _ _ __ _ _ _ _ _ _i _ __ _ 6 Press and Mtil the malyzer shows the correct power meter model 24 System Verificationand Performance Tests ...

Page 81: ...he analyzer s calibration factor sensor table can hold a muximum of 12 calibration factor data points The following softkeys are included in the sensor calibration factor entries menu _ __ __ _ _ _ __ _ gggi ggi _ _ _ press to select a point where you can use the front panel knob or entry keys to enter a value _ _ _ g Jg press to edit or change a previously entered value A ii w press to delete a p...

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Page 84: ...POWER SENSOR H P 8483A Figure 2 19 Setup for Power Meter Calibration on Test Port 2 23 Press seas _ a G i A _ _ u L ____ _ __ _ i _i_i _ _i_ _ 24 fiess g to start the power meter _ _ _ _ _ __ _ calibration for test port 2 25 When the analyzer displays the message POWEFl METER CALIBRATION SWEEP DONE connect the equipment as shown as in Figure 2 20 248 Syetem Verification and Performance Tests ...

Page 85: ...ompletes the Test Port Input Frequency Response procedure if your analyzer does not have Option 006 Otherwise continue with the next sections Power Meter Calibration for Test Port 2 from 3 GHz to 6 GHz 31 Replace the power sensor with the HP 8481A and then setup the power meter n If the power meter is an HP 438A press a n If the power meter is an HP 437B press PRESET LOCAL n If the power meter is ...

Page 86: ...35 Press Repeat step 12 to build a calibration factor sensor table for the HP 8481A power sensor 36 Press k to exit the sensor calibration factor entries menu i __ y _ _ 37 m s a the HP 8 lA power sensor press _ _ 38 Press ym f i to start the power meter calibration I c i____ _ _ _ _ 2 60 System Verification and Performance Tests ...

Page 87: ...e 2 22 Setup for lkst Port 1 Input Frequency Response 41 _ Press I 1 c 1 to put i i _i l i_ r i_i_ L _ _ marker 1 at the minimum magnitude location of the trace 42 Press 1 9 cm to position 2 2L 2 _ _ i i marker 2 at the maximum magnitude location of the trace 43 Write the marker 1 or marker 2 reading whichever has the largest absolute magnitude in the Performance Test Record n System Verification ...

Page 88: ......

Page 89: ...igure 2 24 Ikst Port 2 Input Frequency Response lkst Setup 51 Write the marker 1 or marker 2 reading whichever has the largest magnitude in the Performance Test Record In Case of Difaculty 1 Be sure you have used the correct power sensor for the frequency range 2 Verify that the calibration factors that you have entered for the power sensors are correct 3 Repeat this test with a known good through...

Page 90: ...uipment for 7513 Analyzers Calibration Kit 75 ohm Type N HP85036B Analyzer warmup time 1 hour Perform this test to verify the signal leakage between the analyzer s test ports 1 Connect the equipment as shown in Figure 2 25 H P 8753E NETWORK ANALYZER P O R T 11 I P O R T 2 CABLE APC 7 2 4 I N C H OPEN END I I PORT 1 PORT 2 S H O R T m x ADAPTER 75fl T Y P E N m t o i TYPE N m 75n SHORT f 75fl DIREC...

Page 91: ...analyzer display in the Performance Test Record Crosstalk to Test Port 1 from 300 kHz to 3 GHz 13 Write the marker value which appears on the analyzer display in the Performance Test Record n 14 This completes the Test Port Crosstalk performance test if your analyzer does not have Option 006 Otherwise proceed to the next section Crosstalk to Test Port 1 from 3 GHz to 6 GHz 15 Press JLG n m 16 Pres...

Page 92: ...the analyzer display in the Performance Test Record n In Case of DifBculty 1 Remove the instrument top cover Using an 8 lb inch torque wrench verify that all semirigid cables connected to the sampler mixer assemblies are tight In addition tighten any loose screws on the sampler mixer assemblies A4 5 6 and the pulse generator assembly A7 2 Remove the instrument bottom cover Refer to F igure 2 26 Ve...

Page 93: ...W32 Figure 2 26 HP 8753E Bottom View sg6102e System Verification and 2 57 Performance Tests ...

Page 94: ...bration temperature 2 Only for analyzers with Option 006 30 kHz to 6 GHz range Equipment Required for 5011 Analyzers Calibration Kit 7 mm HP85031B Cable APC 7 24 inch HPP N 81204779 Equipment Required for 75Q Analyzers Calibration Kit Type N HP 85036B Cable Type N 24 inch HP P N 8120 4781 Analger warmup time 30 minutes Perform this procedure to verify the analyzer uncorrected test port characteris...

Page 95: ...the open short combination supplied in the calibration kit to analyzer test port 1 6 _ L i _ _ _ _ _ _ 7 Connect the short end of the open short combination to analyzer test port 1 _ _ __ 8 press 9 Replace the open short combination with the 50 ohm termination supplied in the calibration kit 11 Connect the open end of the open short combination to the reference test port 2 System Verification and ...

Page 96: ...isplays PRESS DONE IF FINISHED WITH STD s press _____ l 111 I I 1 A i C i _ _ _ _ Waitforthemessage COMPUTINGCAL COEFFICIENTS to disappearfromthe analyzer display before proceeding to the next step 18 Connect the equipment as shown in Figure 2 28 H P 8753E NETWORK ANALYZER PORT 1 I I PORT 2 Figure 2 28 Transmission Calibration lkst Setup 2 60 Syetem Verification and Performance Tests ...

Page 97: ...ange s listed on the Performance Test Record n Source Match Forward Calibration Coefficient 27 When the analyzer finishes the test repeat steps 22 through 25 Transmission Tracking Forward Calibration Coefficient 28 Press m 37 xl _i _i____ __i ii _ _ i _ 29 When the analyzer finishes the test repeat steps 22 through 25 Reflection Tracking Forward Calibration Coefficient 31 When the analyzer finishe...

Page 98: ......

Page 99: ...ess 50 Connect the 50 ohm termination to the analyzer test port 2 52 When the analyzer displays PRESS DONE IF FINISHED WITH STD s press i_i_i___ _ _1 _ Wait for the message COMPUTING CAL COEFFICIENTS to disappear from the analyzer display before proceeding to the next step 53 Connect the equipment as shown in F igure 2 30 H P 0753E NETWORK ANALYZER I ICABLE 24 INCH sg618 2 Figure 2 30 Transmission...

Page 100: ......

Page 101: ...Equipment for 508 Analyzers Cable APC 7 24 inch HP P N 8120 4779 Required Equipment for 750 Analyzers Cable 75Q Type N 24 inch HP P N 8120 2408 Analgzer warmup time 1 hour Perform this test to measure the system trace noise at a designated frequency in both the A R and B R ratioed measurements 1 Connect the equipment as shown in Figure 2 31 H P 8753E NETWORK ANALYZER PORT 1 U PORT 2 CABLE 24 INCH ...

Page 102: ... which appears on the analyzer display on the Performance Test Record n System Trace Noise for A R Phase 9 press format 11 When the analyzer finishes the number of sweeps press 8 12 Write the sdev value on the Performance Test Record System Trace Noise for B R Magnitude 15 When the analyzer l nishes the number of sweeps press c 1 16 Write the sdev value on the Performance Test Record 2 66 System V...

Page 103: ... _ yw i iigq A J 20 Write the sdev value on the Performance Test Record In Case of Difaculty 1 Perform the ADC Offset Correction Constants procedure located Chapter 3 Adjustments and Correction Constants n 2 Repeat this performance test 3 Suspect the A10 Digital IF board assembly if the analyzer still fails the test System Verification and 2 67 Performance Tests ...

Page 104: ...rms 3GHzto6GHz B R O OlO dB nns o 070 rnls 1 At 5 dBm into test port 3 lcHz IF bandwidth and CW sweep Required Equipment Cable APC 7 24 inch HP P N 8120 4779 Analyzerwarmuptime lhour Perform this test to measure the system trace noise at designated CW frequencies in both the A R and B R ratioed measurements 1 Connect the equipment as shown in Figure 2 32 H P 8753E NETWORK ANALYZER Figure Z 32 Syst...

Page 105: ...lay on the Performance Test Record System Trace Noise for A R Phase from 3 GHz to 6 GHz ll Press Format fJB __ _ 12 T N x s q A _ press m f gfj i 0 xl iz s u i _ _ i i A _ m L 13 When the analyzer hnishes the number of sweeps press j 1 _ _ _ S i z L w z r _ 14 Write the sdev value which appears on the analyzer display on the Performance Test Record System Verification and 2 69 Performance Tests ...

Page 106: ... 20 Write the s dev value which appears on the analyzer display on the Performance Test Record System Trace Noise for B R Magnitude from 3 GHz to 6 GHz 22 When the analyzer Gnishes the number of sweeps press w 23 Write the sdev value which appears on the analyzer display on the Performance Test Record n System Trace Noise for B R Phase from 3 GHz to 6 GHz 25 When the analyzer Gnashes the number of...

Page 107: ...s on the analyzer display on the Performance Test Record n In Case of Diffhilty 1 Perform the ADC Offset Correction Constants procedure located in Chapter 3 Adjustments and Correction Constants 2 Repeat this performance test 3 Suspect the A10 Digital IF board assembly if the analyzer still fails the test System Verification and 2 71 Performance Tests ...

Page 108: ... I 114m I Required Equipment for 50 ohm Analyzers Cable APC 7 24 inch HP P N 8120 4779 Calibration Kit 7 mm HP 85031B Required Equipment for 75 ohm Analyzers Cable 750 Type N 24 inch HP P N 8120 2408 Calibration Kit 753 Type N HP85036B Anulgm warmup time 1 hour Perform this test to measure the return loss of each input test port 2 72 System Verification and Performance Tests ...

Page 109: ...ration ii_ _ i _ _ _ i __ _ kit _ lf your analyzer is 5oQ press _i _ _i_ _ _ _i lf your mdyzr is 75Q press _ i 5 Press i E _i _ i_ z i _ 6 Connect an open to reference test port 1 as shown in Figure 2 33 _ 7 press _ 8 When the analyzer displays the prompt CONNECT STD THEN PRESS KEY TO NEASUFE connect a short to reference test port 1 g Press _ _ _ 10 At the prompt connect a load to reference test p...

Page 110: ...st Port 2 Input Impedance Jkst Setup 15 Press e to turn the analyzer s marker 1 on Use the front panel knob to locate the maximum value of the data trace for each of the frequency ranges listed in the Performance Test Record 16 Write these maximum values on the Performance Test Record 17 Connect the equipment as shown in Figure 2 35 2 74 System Verification and Performance Tests ...

Page 111: ... in Figure 2 35 21 When the analyzer displays the prompt CONNECT STD THEN PRESS KEY TO MEASURE connect a short to reference test port 2 23 At the prompt connect a load to reference test port 2 24 press i 25 When the analyzer displays DONE IF FINISHED WITH CAL press a _ __ _ 8 i _ 26 press LB to save the l Port calibration _ _ 2 i i 27 Connect the equipment as shown in Figure 2 36 System Verificati...

Page 112: ... the data trace for each of the frequency ranges listed in the Performance Test Record n 29 Write the maximum values on the Performance Test Record In Case of Difkulty 1 Suspect the A10 digital IF board assembly if the analyzer fails both test port tests 2 Refer to Chapter 8 Receiver Troubleshooting for more troubleshooting information 2 76 System Verification and Petformanca Tests ...

Page 113: ...ower Meter HP 436Af437Bl438A Power Sensor HP 8482A Step Attenuator 110 dB HP 8496A Option 001 H18 See notes on the following page Adapter 2 APC 7 to Type N f HP 11524A Adapter Type N f to Type N f HP P N 1250 0777 Cable 3 509 Type N 24 inch 8120 4781 Cable HP IB HP 10833A Diskette 3 5 inch Calibration Kit Type N 50 Q HP 85Og Additional Required Equipment for 75 ohm Analyzers MinimumLossPad 2 500 t...

Page 114: ... difference of S11 or 2 between the reference attenuation step and all the other steps is measured The magnitude of this difference is certified to be 0 0316 30 dB Note The HP 8496A used for this test wiU have known attenuator errors for attenuations up to 100 dB using a test frequency of 30 MHz The attenuation used as a reference is 0 dB If the available calibration data is not expressed as atten...

Page 115: ...laced in the row for the 10 dB HP 8496A setting c Continue transferring the remaining values of the HP 8496A attenuation errors to column B in lhble 2 l 2 In lhble 2 1 transfer the 10 dB error value located within the parenthesis in column B to each space in column C Bible 2 l Magnitude Dynamic Accuracy Calculations A B c 8496A Attn Error 10 dB Error Attn Brror AttZl ref 0 dB Vixlne ref 10 dB 0 Od...

Page 116: ...r Calculate the values in this column by subtracting the values in column D from the values in column E E D F 5 Transfer the values from column F in Iable 2 l to column F in the Performance Test Record for both test ports Power Meter Calibration 6 Zero and calibrate the power meter Refer to the power meter manual for details on this procedure 7 Connect the equipment as shown in Figure 2 37 2 60 Sy...

Page 117: ...3E NETWORK ANALYZER WITH OPTION 075 H P 5753E POWER METER 1 1 0 dB STEP ATTENUATOR POWER SENSOR Figure 2 37 Power Meter Calibration for Magnitude Dynamic Accuracy System Verification and 2 61 Performance Tests ...

Page 118: ... power meter s address 113 a c Select the appropriate powerm erby pressing until A i L i ii i 2 L L the correct model number is displayed HP 436A or HP 438A 437 d Select the cal kit and enter the power sensor calibration data _ _ __ _ _ ___ g _ ___ _ _ _ _ _ 11 I e a power meter calibration sweep 12 Verify that the power meter reads approximately 20 dBm 242 System Verification and Performance Test...

Page 119: ...ZER DIRECT PORT I I PORT 2 t lNlMm 4LOSSPAD TYPE N 24 INCH Cm TO 4 Cm TO Cm ADAPTER TYPE N f TO TYPE N f H P 8753E NETWORK ANALYZER 24 INCH ml TO Cm 24 INCH Cm TO m ADAPTER TYPE N f TO TYPE N f sg6118e Figure 2 38 Full 2 Port Calibration with Adapter Removal System Verification and 2 83 Performance Teete ...

Page 120: ...16 Move the adapter to reference test port 1 and perform another full 2 port error correction 17 Save the results to disk Name the file PORT2 18 fiess Lcal g I M _ L i 19 kom the disk directory choose the We PORTl and press _ __ j_ __ iin___ 20 When this is complete choose the fle PORT2 and press _ i i 21 When complete press J EJE W i _i _ 22 m enter the adapter delay press L llo m default for i _...

Page 121: ... P B753E NETWORK ANALYZER W I T H O P T I O N 0 7 5 PORT 11 1 PORT 2 1 1 0 dB STEP ATTENUATOR H P B753E NETWORK ANALYZER PORT11 I PORT 2 ADAPTER APC 7TO ADAPTER TYPE N t a APC 7TO TYPE N f CABLE500 TYPE N CABLE50R 24 INCH TYPE N 24 INCH DIRECT CONNECTION 1 1 0 dB STEP ATTENUATOR g661e Figure Z 39 Magnitude Dynamic Accuracy Measurement System Verification and 2 85 Performance Tests ...

Page 122: ...h appears on the analyzer s display in the Test Port Measurement cohunn of the Performance Test Record This column is also labeled G 31 Repeat steps 28 through 30 for each setting of the step attenuator 32 Calculate dynamic accuracy for each step by using the formula IG FI Place these values in the appropriate column of the Performance Test Record n 2 85 System Verification and Performance Tests ...

Page 123: ...so labeled G 39 Repeat steps 36 through 38 for each setting of the step attenuator 40 Calculate dynamic accuracy for each step by using the formula IG FI Place these values in the appropriate column of the Performance Test Record n In Case of Difkulty 1 If the analyzer fails the test at ALL power levels be sure you followed the recommended attenuator settings as listed in the Performance Test Reco...

Page 124: ...nts and ADC Offset Correction Constants procedures located in Chapter 3 Adjustments and Correction Constants b Repeat this performance test c If it stiII fails replace the A10 Digital IF assembly d Repeat the two adjustment procedures mentioned in this step and then repeat this performance test 2 88 System Verification and Performance Tests ...

Page 125: ...th a 10 Hz IF bandwidth 2 OnIy for maIyzers with Option 006 30 IcHz to 6 GHz range Required Equipment for 5On Analyzers Cable APC 7 24 inch HP P N 8120 4779 Required Equipment for 75 ohm Analyzers Cable 750 Type N 24 inch HP P N 8120 2408 Anul zerwarmuptime 1hour Perform this test to verify the compression expansion magnitude levels of the analyzer s test port receiver samplers System Verification...

Page 126: ......

Page 127: ...ker 2 reading in the Measured Value column of the Performance Test Record n 26 Repeat steps 20 through 25 for the other CW frequencies listed for Port 1 in the Performance Test Record In Case of DifIkulty 1 If the analyzer fails Test Port 2 Magnitude Compression a Repeat this test b Replace the A6 B sampler assembly if the analyzer stiII fails the test 2 If the analyzer fails Test Port 1 Magnitude...

Page 128: ...ndwidth 2 Only for analyzer with Option 006 30 kHz tQ6GHZrsnge Required Equipment for 500 Analyzers Cable APC 7 24 inch HP P N 8120 4779 Required Equipment for 75 ohm Analyzers Cable 75 ohm Type N 24inch HP P N 8120 2408 Anulgzer warmup time 1 hour Perform this test to verify the compression expansion phase relationships of the analyzer s test port receiver samplers 2 82 System Verification and Pe...

Page 129: ...gure 2 41 Ikst Port Phase Compression St SetUP 11 Write the absolute value of the marker 2 reading in the Measured Value coh unn of the Performance Test Record 12 Repeat steps 5 to 11 for the other CW frequencies listed for Port 2 in the Performance Test Record System Verification and 2 83 Performance Tests ...

Page 130: ...formance Test Record 20 Repeat steps 14 to 19 for the other CW frequencies listed for Port 1 in the Performance Test Record ln Case of DifEculty 1 If the analyzer fails the Test Port 2 Phase Compression test a Repeat this test b Replace the A6 B sampler assembly if analyzer still fails the test 2 If the analyzer fails the Test Port 1 Phase Compression test a Repeat this test b Replace the A5 A sam...

Page 131: ...for 500 Analyzers Cable APC 7 24 inch HP P N 8120 4779 Attenuator 2 20 dB APC 7 HP 8492A Option 020 Equipment Required for 75 ohm Analyzers Minimum Loss Pad 2 HP 11852B Cable Type N HP P N 8120 2408 Attenuator 2 20 dB Type N HP 8491A Option 020 Anulgwr warmup time 30 minutes Perform this test to determine the spectral purity of the HP 8753E input and output test ports Note The test port input 3rd ...

Page 132: ...equipment as shown in Figure 2 42 H P i3753E PORT11 I PORT 2 20 dE FIXED ATTENUATORS CABLE APC 7 2VINCH H P 8753E NETWORK ANALYZER W I T H O P T I O N 0 7 5 MINIMUM LOSS PAD 20dB FIXED ATTENUATORS ip MINIMUM LOSS F CABLE TYPE N AD Figure 2 42 l t Port Output Harmonics Ikst Setup _ _ one sweep press m to get a better viewing of the trace 2 96 System Verification and Performance Tests ...

Page 133: ...quency to 1 GHz _ _ 12 Press iiG lfi JfQggQ i Ei lQk B E lI j i 13 After one sweep press j f f to nom e the __ i _ trace i 14 Press Is xl to get a better viewing of the trace i I 15 Press ZE 16 After one sweep press XT 17 press m __ ii ii _ 18 Write the marker 1 value on the Performance Test Record Port 1 Input Worst Case 2nd Harmonic 19 Connect the equipment as shown in Figure 2 43 System Verific...

Page 134: ......

Page 135: ...nd harmonic d __ 7 8 39 Press g i _ _ _ __ i C Li A i _ r A T mr Gs m s q Ygf 40 After one sweep press md to normalize the _ __ __ z vi _ _ _ trace e fg Gj Px Z _ _ _ 41 Press Q a j i A z wA _ A s L 2 u z Li_ i _ i K 2 A 42 After one sweep press Ref_ to get a better tiewing of the 2 A f s _ z T ii A A w L trace _ _ _ _ __ _ 43 press CM 1 i _i L s d u LA T 44 Write the marker 1 value which appears ...

Page 136: ...ep press w gg mI to nomm the u i ii A i trace w yg Eg g s y i y Y 48 Press SGLEZ iJ Ixl to get a better viewing of _ 2s w iiWC r i _ _ u the trace 49 Press w _ ii _ _ i i __ _ _ _ _ 50 After one sweep press scale __ _i_ _ i ___ 51 Press jj _ ii _ _ _ i e i __ _ ___ ___ _ 52 Write the marker 1 value on the Performance Test Record n 2 l 00 System Verification and Performance Tests ...

Page 137: ...nDut Port 2 I 2nd 1 15dBc 8dESm 1 I InDut Port 2 I 3rd I 3OdEk 8dBm I Equipment Required Cable APC 7 24 inch HP P N 8120 4779 Attenuator 2 20 dB HP 8492A Opt 020 Analggm warmup time 30 minutes Perform this test to determine the spectral purity of the HP 8753E input and output test ports Note The test port input 3rd harmonic specifications are better than the test port output 3rd harmonic specifica...

Page 138: ...FIXED ATTENUATORS CABLE APC 7 24 INCH s g629e Figure Z 44 l t Port Output Harmonics lkst Setup 6 After one sweep press to normalize the i i _ c _ i i _ ii SW _ _ __ trace y p y y 7 Press ZG _ _ _ __ _ __ _ __ __ 8 After one sweep press Cw to get a better viewing of the _ _ _ _ _ i L trace g __ _ _ _ _ _ 10 Write the marker 1 value which appears on the analyzer display on the Performance Test Recor...

Page 139: ... c 13 After one sweep press 1 I ATA to normalize the U ii z _ _ i s trace 14 Press Cm o o to get a better viewing of the trace 15 press I i i A _i L T L _ i _ 16 After one sweep press CSca e Rep 17 _ i I P r e s sljiiZXGFctn_ 18 Write the marker 1 value on the Performance Test Record System Verification and 2 l 03 Performance Tests ...

Page 140: ...Press m 16 m m Lc n to set the frequency range 24 After one sweep press m to nom e the _ ____ i i_ SW 2 3 i trace 26 After one sweep press Cm to get a better tiewing of the A A i l z trace 28 Write the marker 1 value which appears on the analyzer display on the Performance Test Record This is the worst case port 1 input receiver channel A 2nd harmonic 2 l04 Systam Verification and Performanw Tests...

Page 141: ... Test Record 7 _ 37 press T 1 i Port 2 Input Worst Case 2nd Harmonic 43 Press cm i _ _ _ 44 Write the marker 1 value which appears on the analyzer display on the Performance Test Record This is the worst case port 2 input receiver channel B 2nd harmonic System Verification and 2 l 05 Performance Tests ...

Page 142: ...ss TJ FJ ZJZJ to change the stop frequency for measuring the receiver 3rd harmonic J z xFY _ 46 Press w 2 2 T s 1 _ A i__i__ _ _ _ _ _ _ I_ 52 Write the marker 1 value on the Performance Test Record 2 106 System Verifmation and Performance Tests ...

Page 143: ...1 Adapter APC 7 to type N f HP 11524A Adapter type N m to BNC f HP P N 1250 1476 Cable 503 BNC m HP P N 8120 1840 Additional Equipment Required for 75 ohm Analyzers Minhmmvloss pad HP 11852B z r warmup time 30 minutes network analyzer and spectrum Perform this test to determine the spectral purity of the network analyzer RF source Use this procedure with HP 8753E network analyzers without Option 0...

Page 144: ...ble between the spectrum analyzer CAL OUT connector and the 508 input Use the type N m to BNC f adapter at the 5OQ input b FVess m f Remove the BNC cable and adapter 2 Connect the equipment as shown in F igure 2 46 2 l 08 System Verification and Performance Tests ...

Page 145: ...m TO Cm H P 8753E NETWORK ANALYZER WITH OPTIONS 0 7 5 DIRECT CONNECTION Figure Z 46 lkst Port Output Harmonics Ttkst Setup 3 Set the netuwrk analgm source power to 10 deem a Press iERJ b Press i GZ f y d Press Llo x For 750 analyzers press ZJ J e press _ Syotem Verification and 2 l 09 Pwformance Tests ...

Page 146: ...Section 2b for 6 GHz network analyzers n Network Anulyzer a b c d e f g h i 2 l 10 Press _ _ _ _ Enter the harmonic frequency from the test record For example press iZJ m to set the network analyzer to the second harmonic of the first ftmdamental frequency in the 3 GHz test record n Spectrum Analgger Press jm Enter the harmonic frequency from the test record For example press iCJ to set the spectn...

Page 147: ... the second or third harmonic by taking a single sweep with the spectrum aruzlgzer a Press iTZVKQ b Read the MARKER A measurement and record it in the appropriate row of the test record under Measurement Value dBc 8 Reset the spectrum un z r marker 9 Repeat steps 5 through 8 for the remaining second and third harmonic frequencies and the fundamental frequencies listed in the test record System Ver...

Page 148: ...Xkst Record For Analyzers with a Frequency Range of 30 liEIz to 3 GHz Note See the next Performance Test Record section if your analyzer frequency range is from 30 kHz to 6 GHz Option 006 Performance Test Record 2a 1 ...

Page 149: ...stomer s Name Performed by Model HP 8753E Serial No F irmware Revision Ambient Temperature Option s C Relative Humidity Ikst Equipment Used Description Model Number Frequency Counter Power Meter Power Sensor Calibration Kit Verification Kit Notes Comments Trace Number CM Due Date 2a 2 Performance Test Record ...

Page 150: ...0 5 000 050 f 0 000 009 16 0 15 999 840 16 000 160 l 0 000 028 31 0 30 999 690 31 000310 f 0 000 054 60 999999 60 999 390 61 000 610 f 0 000 106 121 0 120 998 790 121 001210 f 0 000 207 180 0 179 QQ8200 180 001800 f 0 000 307 310 0 309 995 900 310 003106 f 0 000528 700 0 699 930 000 700 007000 f0 001192 1300 0 1299 987 1300 013 f 0 002 212 2 ooo 0 1 999 980 2000 020 f 0 003 403 3 ooo 0 2 999 970 3...

Page 151: ... 465 20 MHz 0 fl f 0 10 5OMHZ 0 fl f 0 10 1OOMHZ 0 fl f 0 10 200 MHZ 0 fl f 0 10 500 MHz 0 l 1 f 0 10 1GHz 0 fl f 0 13 2GHz 0 fl f 0 13 3GHz 0 fl f 0 27 bb 4 Jkst Port Output Power Range and Linearity T t settings Eeslllts Power Level Specillcation Measnr ement Measured Linearity WI Uncertainty VW WI VW TW Frequency 300 kHz 15 f 0 2 f 0 03 13 f 0 2 f 0 03 11 f 0 2 l 0 03 9 f 0 2 f 0 02 7 f 0 2 f 0...

Page 152: ... Power Level SpecificationMeasnrement Measured Linearity WV Uncertainty ow W WI 7 f 0 5 f 0 03 8 f 0 5 f 0 03 Q f 0 5 f 0 03 10 f 0 5 f 0 03 CW Frequency 3 GHz 15 f 0 2 l 0 03 13 f 0 2 f 0 03 11 f 0 2 f 0 03 9 f 0 2 f 0 02 7 f 0 2 f 0 02 6 f 0 2 f 0 02 3 f 0 2 f 0 02 1 f 0 2 f 0 02 l f 0 2 f 0 03 3 f 0 2 f 0 03 5 f 0 6 f 0 03 7 f 0 5 f 0 03 8 f 0 5 f 0 03 Q f 0 6 f 0 03 10 f 0 5 f 0 03 Performance...

Page 153: ...Hz 35 f 1 0 3 31 MHZ 35 f 1 0 15 90 MHz 35 f 1 0 16 10 MHz 35 f 1 0 30 90 MHz 35 f 1 0 31 10 MHz 35 f 1 0 1 6069 GHz 35 f 1 0 1 6071 GHz 35 f 1 0 3 000 GHz 35 f 1 0 bb 6 Test Port Input Noise Ploor Level Frequency Bange Test Port IP Specification Calculated Yeast ement Bandwidth 1 Value Uncertainty 3OOkHz 3GHz Port 1 3lcHz 82 N A 3OOkHz 3GHz Port 1 10 Hz 102 N A 3OOkHz 3GHz Port 2 10 Hz 102 N A 3O...

Page 154: ...ncy Response Preqnency Bange Test Port Speci ation Measured Value w9 WI Measurement Uncertainty uJ 9 300 kHz 3GHz 300 kHz 3GHz Port 2 fl Port 1 fl b 8 Test Port Crosstalk 0 47 0 47 Test settings CrosstdktoTfestPort2 300 kHz 3 GHz Cro aUc t 0 l t Port 1 300 kHz 3 GHz SpeciHcation WI 100 100 MeasuredValue WV Measnrement Uncertainty N A N A Performance Test Record 2a 7 ...

Page 155: ...ans Tracking l rarls Trackiug Forward Direction Rd Tracking Refl Tracking F verse Direction Load Match Load Match bb 9 Calibration CoeiHcients 300 kHz 1 3 GHz 1 3GHz 3GHz 2 35 f 0 9 2 30 f 0 8 300 kHz 1 3 GHz 16 f 0 2 1 3GHz 3GHz 1 16 f 0 2 300 kHz 1 3 GHz 1 3GHz 3GHz f 1 5 f 1 5 f 0 006 f 0 009 3OOkHz 1 3GHz 1 3GHz 3GHz l 1 5 f 1 5 f 0 001 f 0 005 300 kHz 1 3 GHz 1 18 f 0 1 1 3GHz 3GHz 2 16 f 0 2...

Page 156: ...Trans Tracking 300 kHz 1 3 GHz f 1 5 f 0 006 Trans Tracking 1 3GHz 3GHz f 1 5 f 0 009 Forward Direction Load Match 3OOkHz 1 3GHz 1 18 f 0 1 Load Match 1 3GHz 3GHz 1 16 f 0 2 Reverse Direction Directivity 300 kHz 1 3 GHz 35 f 0 9 Dire vi 1 3GHz 3GHz 130 f 0 8 Reverse Direction Source Match 300 kHz 1 3 GHz 2 16 f 0 2 Source Match 1 3GHz 3GHz 1 16 f 0 2 Reverse Direction Ben Tracking 3OOkHz 1 3GHz f ...

Page 157: ...Specj ation An3 0 006dBrm An3 0 03B rrns B R 0 006 dH rms B R 0 038O rms Measured Vhhe M ement Uncertainty fO OO1 dB fO O1O fO OO1 dB fO O1O bb 12 l t Port Input Impedance Test Port Betnrn Loss Specilkation M ement aB aB Uncertainty WI 300 kHz 1 3 GHz Port 2 2 18 f 1 5 1 3 GHz 3 GHz Port 2 2 16 f 1 5 300 kHz 1 3 GHz Port 1 18 f 1 5 1 3 GHz 3 GHz Port 1 1 16 f 1 5 2a 10 Performance Test Record ...

Page 158: ...ted C alated 0 w PI l t Port 2 10 0 5 0 033 f 0 008 2o Ref 10 0 000 0 020 f 0 008 30 20 5 0 031 f 0 008 40 30 5 0 042 f 0 008 50 40 5 0 057 f 0 008 60 50 5 0 098 f 0 017 70 60 5 0 247 l 0 017 8 0 70 5 0 725 f 0 017 90 80 5 2 097 f 0 017 loo 90 5 5 399 f 0 027 lbstPort1 10 0 5 0 033 f 0 008 2ouw 10 0 000 0 020 f 0 008 30 20 5 0 031 f 0 008 40 30 5 0 042 f 0 008 50 40 5 0 057 f 0 008 60 50 5 0 098 f...

Page 159: ...A 1GHz Port 2 5 0 45 N A 2GHz Port 2 5 0 45 N A 3GHz Port 2 5 0 45 N A 5OMHZ Port 1 5 0 45 NIA 1GI h Port 1 5 0 45 NIA 2GHz Port 1 5 0 45 N A 3GI h Port 1 5 0 45 NIA bb 16 lbt Port Receiver Phase Compression CW Frequency lbst Port MeasnredValne SpecificationMeasurement okP 9 Uncertainty 5OMHZ Port 2 5 6 NIA 1GHz Port 2 5 6O N A 2GI h Port 2 5 6O NIA 3GH z Port 2 5 6 N A 50 MHz Port 1 5 6O NIA 1GHz...

Page 160: ...Date 16 Test Port OutpW lnput Harmonics Option 002 without Option 006 l t Description Speciikntion Meamrement Value Measurement w 3 3 Uncertainty WV l t Port output HZ3llUOtiCS 2nd 25 f 1 5 3rd 5 25 f 1 5 Port 1 Input Harmouics 2nd 5 15 f 1 5 3rd 5 30 f 1 5 Port 2 Input Harmouics 2nd 15 f 1 5 3rd 5 30 f 1 5 Performance Ted Record 2a 13 ...

Page 161: ...s without Option 002 Second Harmonic FbndamenW SpeciIkation Measurement blue Measurement Frequency Fhqnenc y ww Pw Uncertainty W 1OOMHZ 1 0 GHz 2 4 GHz 3 0 GHz Third Harmonic Frequency 300 MHz 1 2 GHz 2 7 GHz 3 0 GHz 50 MHz 5 25 f 1 6 500 MHz 5 25 f 1 6 1 2 GHz 5 25 f 1 6 1 5 GHz 5 25 f 1 6 100 MHz 5 25 f 1 6 4OOMHZ 5 25 f 1 6 900 MHz 5 25 f 1 6 1GHz 5 25 f 1 6 2a 14 Performance Test Record ...

Page 162: ...ance Xkst Record For Analyzers with a Frequency Range of 30 kHz to 6 GHz Note See the previous Performance Test Record section if your analyzer frequency range is from 30 kHz to 3 GHz Performance Test Record 2b 1 ...

Page 163: ...ame Performed by Model HP 87533 Option 006 Serial No Firmware Revision Ambient Temperature Option s o C Relative Humidity I t Equipment Used Description Model Number kequency Counter Power Meter Power Sensor Calibration Kit Verification Kit Notes Comments Trace Number Cal Due Date I I I I 2b 2 Performance Test Record ...

Page 164: ...0 4 9QQ 950 5 000 050 f 0 000 009 16 0 15 999 840 16 000160 f 0 000 028 31 0 30 999 690 31 000 310 f 0 000 054 80 999 999 6O QQQ3QO 61 000610 f 0 000 105 121 0 120 998 790 121 001210 f0 000207 180 0 179 QQ8200 180 001800 f 0 000307 310 0 309 995 900 310 003100 f 0 000 528 700 0 699 930 000 700 007000 f 0 001 192 1300 0 1299 987 1300 013 f 0 002 212 2 000 0 1999 980 2000 020 f 0 003 403 3 000 0 2 9...

Page 165: ...1 000 2 000 3 000 4 000 5 000 6 ooo lbt Frequency bb 3 Test Port Output Power Accmaey Test Port specification Measured Value ontpnt PI 1 Power aBm Measurement Uncertainty PI 300 lcl lz 0 i l i 0 47 20 MHz 0 i l i 0 25 50 MHz 0 i l i 0 12 100 MHz 0 i l i 0 12 200 MHz 0 i l i 0 12 500 MHz 0 fl i 0 12 1GHz 0 i l i 0 12 2GHz 0 i l i 0 15 3GHz 0 i l i 0 15 4GHz 0 i l i 0 17 5GI h 0 i l i 0 17 6GI h 0 i...

Page 166: ...Uncert WI W CW Frequency 300 kHz 15 i 0 2 i 0 03 13 i 0 2 i 0 03 11 i 0 2 i 0 03 9 i 0 2 i 0 02 7 i 0 2 i 0 02 5 i 0 2 i 0 02 3 i 0 2 i 0 02 1 i 0 2 i 0 02 l i 0 2 i 0 03 3 i 0 2 i 0 03 6 i 0 5 f 0 03 7 i 0 5 i 0 03 8 i 0 5 i 0 03 Q i 0 5 i 0 03 10 i 0 5 i 0 03 CW F requency 3 GHz 15 i 0 2 i 0 03 13 i 0 2 i 0 03 11 i 0 2 i 0 03 9 i 0 2 i 0 02 7 i 0 2 i 0 02 5 i 0 2 i 0 02 3 i 0 2 i 0 02 1 i 0 2 i ...

Page 167: ...y 6 GHz 15 13 11 9 7 5 3 1 l 3 5 7 8 Q 10 Results Measured WV ge and Linearity Power Level Li a Y WI mtinned Speciilclrtioll em i 0 5 i 0 5 i 0 5 i 0 5 i 0 2 i 0 2 i 0 2 i 0 2 i 0 2 i 0 2 i 0 2 i 0 2 i 0 2 f 0 2 i 0 5 i 0 5 i 0 5 i 0 5 i 0 5 MeIl 8 Uncert W i 0 03 i 0 03 i 0 03 i 0 03 f 0 03 i 0 03 i 0 03 i 0 03 i 0 02 i 0 02 f 0 02 i 0 02 i 0 02 i 0 03 i 0 03 i 0 03 i 0 03 i 0 03 i 0 03 2b 6 Perf...

Page 168: ... GHz c 35 i 2 0 4 000 GHz 30 i 2 0 5 000 Gllz 30 i 2 0 6 000 GHz 30 i 2 0 bb 6 lkst Port Input Noise Floor Level eclaenc Bange l t Port IF Speciilcation Calculated Measurement Ba ndwidth 1 Value Uncertainty 300 Hz 3 GHz Port 1 3kHz 82 N A 300 kHz 3 GHz Port 1 10 Hz 102 N A 300 kHz 3 GHz Port 2 10 Hz 102 N A 300 kHz 3 GHz Port 2 3kHz 82 N A 3 GHz 6 GHz Port 2 3kHz 77 N A 3 GHz 6 GHz Port 2 10 Hz 97...

Page 169: ... Port Specilkation Meaared Value Meawrement aB om Uncertainty WV 300kHz 3GHz Port2 3OOkHz 3GHz Port1 3GHz 6GHz Port1 3GHz 6GHz Port2 il il i2 i2 0 47 0 47 0 17 0 17 I 1 8 lkst Port crosstalk I Test settings crosstallrto stPort2 3OOkHz 3GHz C tQ stPortl 300kHz 3GHz C toTestPortl 3GHz 6GHz C to IlestPort2 3GHz 6GHz 100 100 go 90 Meaared blue Measurement ldH Uncertainty NIA N A NIA NIA 2b 6 Performan...

Page 170: ...5 i 0 8 Forward Direction Source Match 300 kHz 1 3 GHz 16 i 0 2 Source Match 1 3 GHz 3 GHz 1 16 i 0 2 Source Match 3 GHz 6 GHz 14 i 0 3 Forward Direction Trans Tracking 300 kHz 1 3 GJ Iz i 1 5 i 0 006 Trans Tracking 1 3 GHz 3 GHz i 1 5 i 0 009 Trans Tracking 3 GHz 6 GHz i 2 5 i 0 021 Forward Direction Refl Tracking 300 kHz 1 3 GHz i 1 5 i 0 001 Refl Tradchg 1 3 GHz 3 GHz i 1 5 i 0 005 Refl Trackin...

Page 171: ... Reverse Direction Source Match Source Match Source Match Reverse Direction Refl Tracking Fkfl Trsckjng R l Tracking 300 kHz 1 3 GHz 1 3 GHz 3 GHz 3 GHz 6 GHz 300 kHz 1 3 GHz 1 3 GHz 3 GHz 3 GHz 6 GHz 300 kHz 1 3 GHz 1 3 GHz 3 GHz 3 GHz 6 GHz 300 kHz 1 3 GHz 1 3GHz 3GHz 3GHz 6GI h 300 kHz 1 3 GHz 1 3GHz 3GHz 3GHz 6GI h i 1 5 i 1 5 f 2 5 2 18 2 16 14 1 30 2 25 1 16 _ 16 2 14 i 1 5 i 1 5 i 2 5 Measu...

Page 172: ...P 1 5 0 0700 mw i 0 01 0 3 AIR P 1 5 0 03v mls i 0 01 o 3 B R Magnitude 0 006dBrmS i 0 001 dB 6 B R Magnitude 5 0 010 dB rms i 0 001 dB 6 B R P 1 5 o 070 rms i 0 01 o 3 B R P 1 5 o 03s ml8 i 0 01 o bb 12 lkst Port Input Impedance lbst Description matPort Return Loss Speciilcation Measurement aB m Uncertainty aB 300 kHz 1 3 GHz Port 2 2 18 i 1 5 1 3 GHz 3 GHz Port 2 1 16 i 1 5 3 GHz 6 GBz Port 2 1 ...

Page 173: ...rectea celculated WI aB lbtPort2 10 0 5 0 033 i 0 008 2o Refl 10 0 000 0 020 i 0 008 30 20 0 031 i 0 008 4 0 30 5 0 042 i 0 008 5 0 40 5 0 057 i 0 008 60 50 5 0 098 i 0 017 70 60 5 0 247 i 0 017 8 0 70 5 0 725 i 0 017 90 80 5 2 097 i 0 017 100 90 5 6 399 i 0 027 l t Port 1 10 0 5 0 033 i 0 008 2ow l 10 0 000 0 020 i 0 008 30 20 0 031 i 0 008 4 0 30 5 0 042 i 0 008 5 0 40 5 0 057 i 0 008 6 0 50 5 0...

Page 174: ...rt MeasuredValue Specification Measar ement WV VW Uncertainty 50 MHz Port 2 5 0 45 N A 1GHz Port 2 5 0 45 N A 2GHz Port 2 5 0 45 NIA 3GHz Port 2 5 0 45 NIA 4GHz Port 2 5 0 80 NIA SGBZ Port 2 5 0 80 N A 6GHz Port 2 5 0 80 NIA 5OMHZ Port 1 5 0 45 NIA 1GHz Port 1 5 0 45 NIA 2GHz Port 1 5 0 45 N A 3GHz Port 1 5 0 45 NIA 4GHz Port 1 5 0 80 NIA 5GHz Port 1 5 0 80 NIA GGHZ Port 1 5 0 80 NIA Performance T...

Page 175: ...est Port Measured Vshe Specification Measurement Wi m vw Uncertainty 50 MHz Port 2 5 6O NIA 1GHz Port 2 5 6O NIA 2GI h Port 2 5 6O N A 3GHz Port 2 5 6O N A 4GHz Port 2 5 7 50 N A 5GHz Port 2 5 7 50 N A 6GI h Port 2 5 7 50 N A 6OMHZ Port 1 5 6O NIA 1GHz Port 1 5 6O NIA 2GHz Port 1 5 6O N A 3GHz Port 1 5 6 NIA 4GHz Port 1 5 7 60 NIA 5GHz Port 1 5 7 50 N A GGHZ Port 1 5 7 60 NIA 2b 14 Performance Tes...

Page 176: ...alNumber Date 17 OntpntIInpnt Test Port Jhrmonics Option 662 only Test Description Specilkation Measurement Value Meawrement VW ww Uncertainty aB l t Port output IWlllOIliCS 2nd 5 25 i 1 5 3rd 5 25 i 1 5 Port 1 Input Harmonics 2nd 5 15 i 1 5 3rd 5 30 i 1 5 Port 2 Input Harmonics 2nd 5 15 i 1 5 3rd 5 30 i 1 5 Performance Test Record 2b 15 ...

Page 177: ...lue Measurement Frequency Frequency Gw ww UllCerh illty ow 100 MHz 1 0 GHz 2 4 GI lz 3 2 GI Iz 4 0 GBz 5 0 GI Iz 6 0 GBz Third Harmonic PreqnencY 300 MB2 1 2 GBz 2 7 GHz 3 3 GHz 4 8 GI lz 6 0 GBz 50 MHz 5 25 i 1 6 500 MHz 5 25 i 1 6 1 2 GHz 5 25 i 1 6 1 6 GI lz 5 25 i 1 6 2 0 GBz 5 25 i 1 6 2 5 G a 5 25 i 1 6 3 0 GBz 5 25 i 1 6 100 MHz 5 25 i 1 6 400 MHz 5 25 i 1 6 900 MHz 5 25 i 1 6 1 1 GHz 5 25 ...

Page 178: ...mpler Magnitude and Phase Correction Constants Test 53 0 Cavity Oscillator Frequency Correction Constants Test 54 q Serial Number Correction Constants Test 55 q Option Numbers Correction Constants Test 56 q Initialize EEPROMs Test 58 q EEPROM Backup Disk Procedure q Correction Constants Retrieval Procedure 0 Loading Firmware q Fractional N Frequency Range Adjustment q Frequency Accuracy Adjustment...

Page 179: ...45 Test Port Output Power Accuracy AnalogBusCC Test46 l t Port Output Power Range and Source Pretune CC Test 48 Linearity RF Output Power CC l t 47 Tl st Port output Input Hamlonics Sampler Maguitude and Phase CC l t 53 Option 002 only Cavity OscUator Frequency CC T t 54 Source Spur Avoidance Tracking EEPROM Backup Disk WAS A6 Samplers A9 Switch Positions MInimmu R Channel Level Sampler Maguitude ...

Page 180: ...t Input Frequency Response Cal Kit Default kst 67 Source Pretune CC T t 48 RF Output Power CC I 47 Sampler Magnitude and Phase CC lkst 63 ADC Linearity CC St 62 IF Amplitler CC lbst 51 Cavity OsciIlator Frequency CC Test 54 EEPROM Backup Disk A10 Digital IF A9 Switch Positions I t Port Input Noise FIoor Level Analog Bus CC I t 46 l t Port CrossbE Sampler Magnitude and Phase CC lbst 53 System Trace...

Page 181: ...l8 Display None Observation of Display lksta 06 80 A19 Graphics System None Observation of Display Processor R 3 59 80 A20 Disk Drive none none A21 lbst Port Coupler RF Output Power CC Ibst 47 l t Port cnxstalk Sampler Magnitude and Phase CC Test 53 Test Port Frequency Response A22 lbst Port Coupler Sampler Magnitude and Phase CC Test 53 lbst Port Cromtalk l lbst Port Frequency Response A23RdAssyL...

Page 182: ...cover toward the rear of the instrument 6 Move the switch as shown in Figure 3 l w Move the A9 switch to the Alter position before you run any of the correction constant adjustment routines This is the position for altering the analyzer s correction constants w Move the A9 switch to the Normal position after you have run correction constant adjustment routines This is the position for normal opera...

Page 183: ...A9 CPU Assembly Normal Mode Alter Mode Rocker Slide sga me Figure 3 1 A9 Correction Constants Switch 8 Reconnect the power line cord and switch on the instrument 3 6 Adjustments and Correction Constants ...

Page 184: ...urce power accuracy z y 1 press CpzJ 22 j L44 Lxl j 2 cw _ _ T _ _ _ _i _ Li _ _ i ii 2 Observe the analyzer for the results of the adjustment routine H If the analyzer displays Source Def DONE you have completed this procedure w If the analyzer displays Source Def FAIL refer to Chapter 7 Source Troubleshooting n Adjustments and Correction Constants 3 7 ...

Page 185: ...mentary phase lock pretuning accuracy 1 press I L 1 A _ _ A s zu L L 2 A Ixl im J x i 2 Observe the analyzer for the results of this adjustment routine n If the analyzer displays Pretune Def DONE you have completed this procedure n If the analyzer displays FAIL refer to Chapter 7 Source Troubleshooting 3 8 Adjustments and Correction Constants ...

Page 186: ...7 and 2 5 volts then stores the calibration data as correction constants in EEPROMs 2 Observe the analyzer for the results of the adjustment routine n If the analyzer displays ABUS Cor DONE you have completed this procedure n If the analyzer displays ABUS Cor FAIL refer to Chapter 6 Digital Control Troubleshooting n Adjustments and Correction Constants 3 8 ...

Page 187: ...values for correct phase locked loop operation 2 Observe the analyzer for the results of this adjustment routine w If the analyzer displays Pretune Cor DONE you have completed this procedure n If the analyzer displays FAIL refer to Chapter 7 Source Troubleshooting n 3 l 0 Adjustments and Correction Constants ...

Page 188: ...everal correction constants that can improve the output power level accuracy of the internal source They are related to the power level power slope power slope offset and the ALC roll off factors among others 1 If you just completed Sampler Magnitude and Phase Correction Constants Test 53 continue this procedure with step 8 x 2 3 ess m me defa power 7 L __ _ i _i___ _ __i _ c a z vs _G meter addre...

Page 189: ... Press ad enter the cabration fador percentage eat corresponds to the frequency you entered The cal factor and frequency values are found on the back of the sensor If you make a mistake press a and re enter the correct value Note The following terms are part of the sensor calibration menu allows you to select a frequency point allows you to edit or change a previously entered value allows you to d...

Page 190: ... Only Press l ri j to create s A2 A I A SW i T a power sensor calibration table for power sensor B HP 8481A using the softkeys mentioned above 9 Connect the equipment as shown in Figure 3 2 Adjustments and Correction Constants 3 13 ...

Page 191: ...481A POWER SENSOR 3 6GHz HP 8482A POWER SENSOR 300KHz 3GHz HP 438A POWER METER HP B h HP 8753E NETWORK ANALYZER WITH OPTION 075 HP 8753E NETWORK ANALYZER PORT 2 sg631e Figure 3 2 RF Output Correction Constants kst Setup for the HP 8753E 3 14 Adjustments and Correction Constants ...

Page 192: ...rve the display for the results n If you see DONE press m and you have completed this procedure n If you see FAIL re run this routine in the following order a P r e s s P r e s e t b Repeat the Source Default Correction Constants Test 44 procedure c Repeat the RF Output Power Correction Constants Test 47 procedure Adjustments and Correction Constants 3 15 ...

Page 193: ...P N 8120 2408 Anulgz warrnupTime 30 minutes These correction constants compensate for possible discontinuities of signal greater than 30 dBm 1 Connect the RF cable from Port 1 to Port 2 of the analyzer 3 Observe the analyzer for the results of the adjustment routine z If DONE is displayed you have completed this procedure w If FAIL is displayed check that the RF cable is COMeCted from Port 1 to Po...

Page 194: ...linear part of the ADC quantizing curve Note This routine takes about three minutes 2 Observe the analyzer for the results of the adjustment routine w If the analyzer displays ADC Of 8 Cor DONE you have completed this procedure w If the analyzer displays ADC Of 8 Cor FAIL refer to the Digital Control Troubleshooting chapter Adjustments and Correction Constants 3 17 ...

Page 195: ...zer wamup time 30 minutes This adjustment procedure corrects the overall flatness of the microwave components that make up the analyzer receiver and test separation sections This is necessary for the HP 8753E to meet the published test port flatness 1 If you just completed Source Correction Constants Test 47 continue this procedure with step 8 3 m me default power _ _ _ i __j i M x _ L _ __ A T A ...

Page 196: ...s to the frequency you entered The cal factor and frequency values are found on the back of the sensor If you make a mistake press B and re enter the correct value d Press j to compIete the data entry for each point _ _ Note The following terms are part of the sensor calibration menu y J iE J allows you to select a frequency point iF allows you to edit or change a previously entered value ___ w al...

Page 197: ...Hz 9 PressLcenter_ TJ FJ 3 J GJIM_U 10 Press Ical _ A i s _ A A A ii _ _ _ _ _ w Le 2 A ii A i_ G i ii in _ 11 Connect the 24 inch cable from Port 1 to Port 2 as shown in Figure 3 3 HP 8753E NETWORK ANALYZER Figure 3 3 First Connections for Insertion Loss Measurement _ _ 12 press i and then when the analyzer is done measuring the through _ 13 fiess W to Save e calibration aat you just made 14 Make...

Page 198: ......

Page 199: ... 2 HP 8481A POWER SENSOR 3 CGHz HP 8482A POWER SENSOR 300KHz 3GHz HP 8753E NETWORK ANALYZER WITH OPTION 075 HP 8753E NETWORK ANALYZER P O R T 1 I P O R T 2 HP 8482A POWER SENSOR Figure 3 5 Connections for Sampler Correction Routine 3 22 Adjustments and Correction Constants ...

Page 200: ...erun this routine Sampler Correction Constants Routine 19 For Option 006 Instruments Only When the analyzer displays CONNECT 6 GHz SENSOR B TO PORT 1 make the connections as shown in Figure 3 6 Then press WJ This part of the test will take about 20 seconds _ _ HP 8753E NETWORK ANALYZER WITH OPTION 006 POWER SENSOR Figure 3 6 Connections for Sampler Correction at 6 GHz 20 When the analyzer displays...

Page 201: ...SENSOR 3 6GHr HP 8482A POWER SENSOR 300KHr 3GHr HP I NETWORK HP 0403A POWER SENSOR O P T I O N H03 3753E J ANALYZER POWER SENSOR k J sg636e Figure 3 7 Connections for Sampler Correction at Port 2 3 24 Adjustments and Correction Constants ...

Page 202: ...8753E NETWORK ANALYZER WITH OPTION 006 POWER SENSOR Figure 3 8 Connections for Sampler Correction at Port sg637e 2 for 6 GHz When the analyzer displays CONNECT PORT 1 TO PORT 2 make the connections of the second through cable of which you have determined its insertion loss as shown in F igure 3 9 Figure 3 9 Connections for the Second Through HP 6753E NETWORK ANALYZER PORT 1 P O R T 2 UCSECOND THRU...

Page 203: ...fset values which are stored in EEPROM b Enter the new value at the accessed address by pressing jpKK 46 a y _ C Access the second address by pressing c 1 Ixl d Enter the new value at the accessed address by pressing I e Press FEZ for the analyzer to use the new values f Repeat the Sampler Correction Constants Routine starting at step 16 n If the analyzer continues to fail this adjustment routine ...

Page 204: ...essed address by pressing I 66 xl C Access the second address by pressing jj a i _s QiJ _ de Enter the new value at the accessed address by pressing l R 1128J XJ e Press w for the analyzer to use the new values f Repeat the Sampler Correction Constants Routine starting at step 16 w If the analyzer continues to fail this adjustment routine refer to Chapter 7 Source Troubleshooting n Adjustments and...

Page 205: ...nalyzer warmup Time 30 minutes The nominal frequency of the cavity oscillator is 2 982 GHz but it varies with temperature This procedure determines the precise frequency of the cavity oscillator at a particular temperature by identifying a known spur Note You should perform this procedure with the recommended filter or a filter with at least 50 dB of rejection at 2 9 GHz and a passband which inclu...

Page 206: ... PASS FILTER ADAPTER ADAPTER ADAPTER ADAPTER sg639e Figure 3 10 Setup for Cavity Oscillator Frequency Correction Constant Routine During this adjustment routine you will see several softkeys sweeps the current frequency span you may press it repeatedly for additional sweeps of the current frequency span sweeps the next frequency span 2 MHz higher enters the value of the marker which you have place...

Page 207: ...f two obvious spurs see Figure 3 11 Without the alter not recommended the target spur will be one of four or five less distinct spurs as shown in Figure 3 12 and Figure 3 13 When the center frequency increases to 2994 999 MHz and you have not selected the target spur Cav Osc Cor FAIL will appear on the display Spur Search Procedure with a Filter 5 press and the o er softkeys as required to i Ei a ...

Page 208: ...rget spur will appear in many variations Often it will be difficult to identify positively occasionally it will be nearly impossible to identify Do E fg not hesitate to press I as many times as necessary to thoroughly inspect the current span The target spur usuaIly appears as one of a group of four evenly spaced spurs as in Figure 3 12 The target spur is on the right most spur fourth from the lef...

Page 209: ...target spur is again the fourth from the left not the fifth right most spur Figure 3 13 Ihrget Spur Is Fourth in Display of Five spurs Figure 3 14 shows another variation of the basic four spur pattern some up some down and the target spur itself almost indistinguishable 3 32 Adjustments and Correction Constants ...

Page 210: ... to position the marker on the target spur Then press E and observe the analyzer for the results of the adjustment routine w If the analyzer displays Cav Osc Cor DONE you have completed this procedure w If the analyzer displays FAIL refer to Chapter 7 Source Troubleshooting n Adjustments and Correction Constants 3 33 ...

Page 211: ...ternal keyboard or by rotating the front panel knob to position the arrow below each character of the instrument s d nu er ad then pressing to enter ea letter Enter a total of ten characters four digits one letter and five 9nal digits press if you made a m e i _ press id when you have mshed entering the title Caution You CMOT correct mistakes after you perform step 5 unless you contact the factory...

Page 212: ...l number that you entered in steps 3 and 4 did not match the required format or a serial number was already stored Check the serial number recognized by the analyzer b Look for the serial number displayed on the analyzer screen c Rerun this adjustment test n If the analyzer continues to fail this adjustment routine contact your nearest HP sales or service office Adjustments and Correction Constant...

Page 213: ...y rotating the front panel knob to position the arrow below each character of the keyword and then pressing to enter each letter _ i_ Press 3 if you made a mistake i _ _ _ i _ _ _ _ 4 Press bs when you have hed entering the title ii i _ Caution Do not confuse I with 1 or 0 with 0 zero 6 Observe the analyzer for the results of the adjustment routine n If the analyzer displays Option Cor DONE you ha...

Page 214: ...knob to highhght the filename that represents your serial number n If you don t have the correction constants backed up on a disk run all the internal service routines in the following order 13 Source Default Correction Constants Test 44 0 Source Pretune Correction Constants Test 45 q Analog Bus Correction Constants Test 46 0 Source Pretune Correction Constants Test 48 q Calibration Kit Default Co...

Page 215: ...teps _ _ a fiess I _ A I i c i _ _ __ b Select the format type n m format a DOS select i i i 7 I T y 3 press w i j ff 3 i iiiiii a _ _ _ A Lwr ii A ii i L _ s p _ _ __ _ I i _ _ _ _ _ i_ _ L 1 is__ _ __ F _ p Sa e Reca j 3 A L _ _ Note The analyzer creates a default file PILEO The filename appears in the upper left comer of the display The file type ISTATE indicates that the file is an instrument ...

Page 216: ...5 Write the following information on the disk label n analyzer serial number n today s date n EEPROM Backup Disk Adjustments and Correction Constants 3 38 ...

Page 217: ... sure the A9 switch is in the Alter position p f g q pL y y Press t 1 Use the front panel knob to highhght the IiIe N12345 where N12345 represents the file name of the EEPROM data for the analyzer On the factory shipped EEPROM backup disk the filename is PILEl i v i j press Tm to download the come ion constants data into the instrument EEPROMs Perform Option Numbers Correction Constant Test 56 n P...

Page 218: ...loppy disk i 1 a yf 7 FE i press Iv I im A _ i A 5 w A _ _ ____ 2 Select an instrument state md press _2 L L L 4 If the instrument state file was not saved to disk with the same name that it had while in internal memory you may wish to rename the file _ _ i Press enter the desired z s L i name and press ZA ii iii 5 Repeat steps 1 through 4 for each instrument state that you wish to save 1 Turn off...

Page 219: ...patterns on the front panel can help you isolate the problem n If the following LED pattern is present the firmware disk is not for use with your instrument model Check that the firmware disk used was for the HP 8753E n If any of the following LED patterns are present defective LEDlhttern CJIlCE2 B L T S the firmware disk may be n If any other LED pattern is present the CPU board is defective 342 ...

Page 220: ...1 will remain on and the display will turn on indicating the version of firmware that was loaded Note After the llrmware has been loaded the correction constants must be restored Refer to Ihble 3 l 2 of 3 to identify the service procedures required to restore retrieve or recreate the correction constants In Case of Diflhlty n If the lirmware did not load successfully LED patterns on the front pane...

Page 221: ...If any other LED pattern is present the CPU board is defective Note If Grmware did not load a red LED on the CPU board will be flashing n If the following LED pattern is present on the CPU board suspect the disk drive or associated cabling l l 0 0 l l 0 0 front of instrument 4 344 Adjustments and Correction Constants ...

Page 222: ......

Page 223: ...F N V C O ADJ ADJUSTMENT HOLE sg640e Figure 3 15 Location of the FN VCO TUNJZ Adjustment Figure 3 16 Fractioual N Frequency Range Adjustment Display 345 Adjustments and Correction Constants ...

Page 224: ...cedure n If the marker value is greater than 7 readjust TN VCO ADJ to 7 Then perform steps 2 to 10 to con m that the channel 1 and channel 2 markers are stilI above and below the reference line respectively w If you cannot adjust the analyzer correctly replace the Al4 board assembly Adjustments and Correction Constants 347 ...

Page 225: ...Earth Ground Wire HP P N 9300 0797 Additional Required Equipment for 5OQ Analyzers Adapter APC 7 to Type N f HP 11525A Additional Required Equipment for 750 Analyzers Minimum Loss Pad HP 11852B Anul m warmup time 30 minutes This adjustment sets the VCXO voltage controlled crystal oscillator frequency to maintain the instrument s frequency accuracy 1 Remove the upper rear bumpers and analyzer top c...

Page 226: ...e 3 17 Frequency Accuracy Adjustment Setup Make sure that the spectrum analyzer and network analyzer references are not connected 3 4 For Option lD5 Instruments Only Remove the BNC to BNC jumper that is connected between the EXT REF and the 10 MHz Precision Reference as shown in Figure 3 19 Set the spectrum analyzer measurement parameters as follows Adjustments and Correction Constants 34 ...

Page 227: ...frequency measurement within specifications 7 Replace the Al2 assembly if you are unable to adjust the frequency as specified Repeat this adjustment test A12 R e f e r e n c e A s s e m b l y Figure 3 18 Location of the VCXO ADJ Adjustment Note To increase the accuracy of this adjustment the following steps are recommended 8 Replace the instrument covers and wait 10 to 15 minutes in order to allow...

Page 228: ... JUMPER FREGUENCY ADJUST sgb42e Figure 3 19 High Stability Frequency Adjustment Location 11 Insert a narrow screwdriver and adjust the high stability frequency reference potentiometer for a CW frequency measurement within specification In Case of Difficulty Replace the A26 assembly if you cannot adjust the CW frequency within specification Adjustments and Correction Constants 3 51 ...

Page 229: ... no adjustment is necessary n If the adjustment is necessary follow these steps a Adjust the VCO tune see Pigure 3 21 to position the left half of the trace to 0 f125 mV The variable capacitor C85 has a half turn tuning range if the Al2 Reference Board is part number 08753 60209 and seven turns if the part number is 08753 60357 Be careful not to overtighten and damage the seven turn capacitor b Ad...

Page 230: ...I START ii 00 000 mz STOP 21 OdO 000 MHZ Figure 3 20 High Low Band Transition Adjustment Trace Al2 R e f e r e n c e A s s e m b l y Figure 3 21 High Low Band Adjustment Locations Adjustments and Correction Constants 3 53 ...

Page 231: ...d Earth Ground Wire HP P N 9300 0797 Additional Required Equipment for 5013 Analyzers Adapter APC 7 to Type N f HP 11525A Additional Required Equipment for 75 ohm Analyzers Minimum Loss Pad HP 11852B Anulgm warmup time 30 minutes This adjustment minimizes the spurs caused by the API analog phase interpolator on the fractional N assembly circuits It also improves the sideband characteristics 1 Conn...

Page 232: ...ORK ANALYZER WITH OPTION 075 Figure 3 22 Fractional N Spur Avoidance and FM Sideband Adjustment Setup 3 Set the spectrum analyzer measurement parameters as follows Reference Level OdBm Resolution Bandwidth lOOI Center Frequency 676 145105 MHz Spa 2 5 kHz Adjustments and Correction Constants 3 55 ...

Page 233: ...lyzer set the center frequency for 676 051105 MHz 7 On the HP 8753e press m ZiZiiZ m _ _ __ 8 Adjust the API1 R35 for a null minimum amplitude on the spectrum analyzer 9 On the spectrum analyzer set the center frequency for 676 007515 MHz 1o on the HP 8753E press m ms 11 Adjust the API2 R43 for a null minimum amplitude on the spectrum analyzer 12 On the spectrum analyzer set the center frequency f...

Page 234: ...E press Menu YmFY Q c 1 m 17 Adjust the API4 R47 for a null minimum amplitude on the spectrum analyzer ln Case of Difliculty 18 If this adjustment cannot be performed satisfactorily repeat the entire procedure Or else replace the Al3 board assembly Adjustments and Correction Constants 3 57 ...

Page 235: ... oscillator and the cavity oscillator when they are frequency offset to avoid spurs Optimizing YO cavity oscillator tracking reduces potential phase locked loop problems 1 Mate the adapter to the BNC cable and connect the BNC connector end to AUX INPUT on the HP 8753E rear panel Connect the BNC center conductor alligator clip to All TPlO labeled 4 ERR the shield clip to All TPl GND as shown in Fig...

Page 236: ...visible on the analyzer display see Figure 3 25 no adjustment is necessary n If spikes are excessive see Figure 3 25 adjust the CAV ADJ potentiometer see Pigure 3 24 on the A3 source bias assembly to eliminate the spikes n If the spikes persist refer to Chapter 7 Source Troubleshooting I i i i i i i i i i 1 a Acceptable b Excessive sg637s Figure 3 25 Display of Acceptable versus Excessive Spikes A...

Page 237: ... of the analyzer 4 Refer to Ihble 3 2 for the address of each unprotected hardware option Enter the address for the speci installed hardware option that needs to be enabled or disabled Follow the address entry by o Lxl Press f L 1 xl then w to enable the option s or press m XJ then w to disable the option _ _ Ihble 3 2 PEEK POKE Addressies Hardware PEEK POKE Options Address 5 Repeat steps 3 and 4 ...

Page 238: ...tions 8 When you have entered all of the hardware options return the A9 switch to the Normal position 9 Perform the EEPROM Backup Disk Procedure located on page 3 42 In Case of DiiTiculty If any of the installed options are missing from the list return to step 2 and reenter the missing option s Adjustments and Correction Constants 3 61 ...

Page 239: ... Sideband Adjustment APIADJ You can download these adjustment sequences from the following URL http vaw tmo hp com tmo pia component test PIATop glish comptest support htmI How to Load Sequences from Disk 1 Place the sequence disk in the analyzer disk drive 3 Select any or all of the following sequence liles by pressing ii a _ Select if you want to load the file for the kacti0nal N _ i _ i Spur Av...

Page 240: ...nnel 1 and channel 2 markers are still above and below the reference line respectively How to Set Up the High Low Band Transition Adjustments _ _ _ l Press B where X is the sequence number 2 Observe the VCO tuning trace n If the left half of trace of1000 mV and right half of trace 100 to 200 mV higher one to two divisions no adjustment is necessary w If the adjustment is necessary follow these ste...

Page 241: ... using a TORX screwdriver 3 Follow the directions on the analyzer display and make alI of the API adjustments Sequence Contents Sequence for the High Low Band Transition Adjustment Sequence HB sets the hi band to low band switch point PRESET SYSTEM SERVICE MENU ANALOG BUS ON STARTllIWu STOP 21 M u MEAS ANALOG IN 22 xl Al2 GND DISPLAY DATA MEM DATA MEM MEAS ANALOG IN 23 xl VCO TUNE MKR11IWl l SCALE...

Page 242: ...36 M u STOP 60 75 M u MENU SWEEP TIME 12 5 k m MEAS ANALOG IN 29 xl FN VCO TUN SCALE REF 0 6 xl REF VALUE 7 xl CH 2 MENU CW FREQ 31 0001 M u SWEEP TIME 12 375 k m MEAS ANALOG IN 29 xl FN VCO TUN SCALELREF 2 xl REF VALUE 6 77 xl MKR6k m Sequence FNCHK check the VCO a stmmt MENU CW FREQ 1 G n SYSTEM SERVICE MENU ANALOG BUS ON SERVICE MODES FRACNTUNEON ANALOG IN 29 xl Adjustments and Correction Const...

Page 243: ... 5K PERIPHERAL HPIB ADDR 18 xl TITLE TO PERIPHERAL WAIT x 0 xl TITLE AT ODB TITLE TO PERIPHERAL WAIT x 0 xl TITLE RM1OOHz TITLE TO PERIPHERAL WAIT x 0 xl TITLE CF 676 145105MZ TITLE TO PERIPHERAL WAIT x 0 xl CW FREQ 676 045105Mh TITLE ADJ Al3 1OOKHZ SEQUENCE PAUSE TITLE CF 676 048105MZ TITLE TO PERIPHERAL WAIT x 0 xl 3 66 Adjustments and Correction Constants ...

Page 244: ...EQ 676 004515Mh TITLE ADJ Al3 API2 SEQUENCE PAUSE TITLE CF 676 00345OMZ TITLE TO PERIPHERAL WMT x 0 xl CW FREQ 676 00045OMh 1 TITLE ADJ Al3 API3 SEQUENCE PAUSE TITLE CF 676 003045MZ TITLE TO PERIPHERAL WMT x 0 xl CW FREQ 676 000045Mh TITLE ADJ Al3 API4 Adjustments and Correction Constants 3 67 ...

Page 245: ... at fault n Locate the specific troubleshooting procedures to identify the assembly or peripheral at fault To identify the portion of the analyzer at fault follow these procedures Step 1 Initial Observations Step 2 Operator s Check Step 3 HP IB Systems Check Step 4 Faulty Group Isolation Start Troubleshooting Here 4 l ...

Page 246: ...orm the necessary performance tests Refer to Chapter 2 System Verification and Performance Tests n Having Your Analyzer Serviced The HP 8753E has a one year on site warranty where available If the analyzer should fail any of the following checks call your local HP sales or service office A customer engineer will be dispatched to service your analyzer on site If a customer engineer is not available...

Page 247: ... all devices and peripherals from the analyzer Switch on the analyzer and press WI Watch for the indications shown in Figure 4 l to determine if the analyzer is operating correctly w If the self test failed refer to Step 4 Faulty Group Isolation Start Troubleshooting Here 4 3 ...

Page 248: ...f both tests exercise the internal attenuator in 5 dEI steps over a 55 dB range The resulting measurements must fall within a limit testing window to pass the test The window size is based on both source and receiver specifications The operator s check determines that n The source is phase locked across the entire frequency range n All three samplers are functioning properly n The transfer switch ...

Page 249: ...p Chkin the active entry area 9 Repeat steps 4 through 7 10 If both tests pass the analyzer is about 80 verified If either test fails refer to Step 4 Faulty Group Isolation in this section or a Make sure that the connection is tight Repeat the test b Visually inspect the connector interfaces and clean if necessary refer to Principles of Microwave Connector Care located in Chapter 1 c Verify that t...

Page 250: ... addresses will be recognized by the analyzer The factory default addresses are Device HP IB Address HP 87533 16 Plotter port BP IB 5 Printer port BP IB 1 Disk external 0 Controller 21 Power meter I FIB 13 Note You may use other addresses with two provisions l Each device must have its own address m The address set on each device must match the one recognized by the analyzer and displayed Peripher...

Page 251: ...the Step 4 Faulty Group Isolation section in this chapter q If the result is not a copy of the analyzer display suspect the HP IB function of the analyzer Refer to Chapter 6 Digital Control Troubleshooting n lf Using an External Disk Drive F 2 Verify that the address is set correctly Press m 3 Ensure that the disk drive is set up correctly n Power is on n An initialized disk in the correct drive n...

Page 252: ... their functionality Any problems observed are in the peripherals cables or are address problems see above Troubleshooting Systems with Controllers Passing the preceding checks indicates that the analyzer s peripheral functions are normal Therefore if the analyzer has not been operating properly with an external controller check the following n The HP ID interface hardware is incorrectly installed...

Page 253: ...hese groups are provided in Chapter 12 Theory of Operation The checks in the following pages must be performed in the order presented If one of the procedures fails it is an indication that the problem is in the functional group checked Go to the troubleshooting information for the indicated group to isolate the problem to the defective assembly Figure 4 2 illustrates the troubleshooting organizat...

Page 254: ...ED LED GREEN LED NORMALLY OFF NORMALLY ON iI UNE VOLTAGE SELECTOR SWITCH sg646e Figure 43 Al5 Preregulator LEDs Check the A8 Post Regulator LEDs Remove the analyzer s top cover Switch on the power Inspect the green LEDs along the top edge of the A8 post regulator assembly I Ail green LEDs should be on q The fan should be audible In case of difficulty refer to Chapter 5 Power Supply Troubleshooting...

Page 255: ...oment the port 2 LED goes off and the port 1 LED ilhnninates See Figure 4 4 n The display should come up bright with no irregularity in colors n After an initial pattern five red LEDs on the A9 CPU board should remain off They can be observed through a small opening in the rear panel If the power up sequence does not occur as described or if there are problems using the front panel keyboard refer ...

Page 256: ...ilme that internal test and possibly others have failed the analyzer reports the Rrst failure detected Refer to Chapter 6 Digital Control Troubleshooting n q If the analyzer indicates failure but does not identify the test press to search for the failed test Then refer to Chapter 6 Digital Control Troubleshooting Likewise if the response to front panel or HP IB commands is unexpected troubleshoot ...

Page 257: ......

Page 258: ...trument 3 on the analyzer press LMenu Lk m to output a cw 3oo kHz signal The power meter should read approximately 0 deem 4 Press 161 m to change the CW frequency to 16 MHz The output power should remain approximately 0 dBm throughout the analyzer frequency range Repeat this step at 1 and 3 GHz For Option 006 include an additional check at 6 GHz If any incorrect power levels are measured refer to ...

Page 259: ...igure 4 6 ABUS Node 16 1 V GHz sg641 d If any of the above procedures provide unexpected results or if error messages are present refer to Chapter 7 Source Troubleshooting Start Troubleshooting Here 4 15 ...

Page 260: ... is HP part number 8120 4779 HP 8753E NETWORK ANALYZER TEST PORT THRU CABLE sg649e Figure 4 7 Equipment Setup Observe the measurement trace displayed by the A input The trace should have about the same flatness as the trace in Figure 4 8 Observe the measurement trace displayed by the B input The trace should have about the same flatness as the trace in Figure 4 8 4 l 6 Start Troubleshooting Here ...

Page 261: ......

Page 262: ...evices limiters and adapters can ail induce system problems Reconfigure the system as it is normally used and reconllrm the problem Continue with Chapter 9 Accessories Troubleshooting n Accessories Error Messages n POWERPROBESHUTDOWN The biasing supplies to a front panel powered device like a probe or millimeter module are shut down due to excessive current draw Troubleshoot the device 4 l 8 Start...

Page 263: ......

Page 264: ...ppears on the display refer to Error Messages near the end of this chapter q the fan is not working refer to Fan Troubleshooting in this chapter The power supply group assemblies consist of the following n A8 post regulator n Al5 preregulator All assemblies however are related to the power supply group because power is supplied to each assembly Powor Supply Troubleshooting 5 l ...

Page 265: ...es the faulty assembly 2 Order a replacement assembly Refer to Chapter 13 Replaceable Parts 3 Replace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures n 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants n 5 Perform the necessary performance tests Refer to Chapter 2 System V...

Page 266: ...power supply Figure 5 8 located at the end of this chapter to see voltage lines and specific connector pin numbers A17 MOTHEREOARG PREREGULATOR OFF DURING A L L O N D U R I N G NORMAL OPERATION N O R M A L OPERAllON ON D U R I N G NORMAL OPERATION sg6105e Figure 5 1 Power Supply Group Simplified Block Diagram Power Supply Troubleshooting 5 3 ...

Page 267: ...eration the bottom green LED is on and the top red LED is off If these LEDs are normal then Al5 is 95 verified Continue to Check the Green LEDs on A8 q If the green LED is not on steadily refer to If the Green LED of the Al5 Is not ON Steadily in this procedure q If the red LED is on or flashing refer to If the Red LED of the Al5 Is ON in this procedure RED LED GREEN LED NORMALLY OFF NORMALLY ON L...

Page 268: ...evel that the power supply is verified lb confirm the last 5 uncertainty of the power supply refer to Measure the Post Regulator Voltages next q If any LED on the A8 post regulator is off or Eashing refer to If the Green LEDs of the A8 are not alI ON in this procedure Measure the Post Regulator Voltages Measure the DC voltages on the test points of A8 with a voltmeter Refer to Figure 5 3 for test ...

Page 269: ...PlY 1 66 V not used 2 AGND 3 6VD 4 SDIS 6 16V 6 12 6 VPP probe power 7 16V 8 6W 0 5 2 V 10 22v 11 6V Bane 64 6 to 65 4 n a 4 0 to 6 3 n a 14 4 to 15 6 12 1 to 12 8 14 5 to 15 5 5 05 to 5 35 5 0 to 5 4 21 3 to 22 7 6 8 to 6 2 5 5 Power Supply Troubleshooting ...

Page 270: ... line voltage to see that they are all correct F igure 5 4 shows how to remove the line fuse using a small flat blade screwdriver to pry out the fuse holder Figure 5 2 shows the location of the line voltage selector switch Use a small flat blade screwdriver to select the correct switch position If the Al5 green LED is still not on steadily replace A15 F U S E I N U S E INSERT SCREWDRIVER PRY OPEN ...

Page 271: ...Wl from the A8 post regulator See Figure 5 5 3 Switch on the analyzer and observe the red LED on A15 q If the red LED goes out the problem is probably the A8 post regulator Continue to Verify the Al5 Preregulator to first verify that the inputs to A8 are correct q If the red LED is still on the problem is probably the Al5 preregulator or one of the assemblies obtaining power from it Continue with ...

Page 272: ...ions Verify the Al6 Preregulator Verify that the Al5 preregulator is supplying the correct voltages to the A8 post regulator Use a voltmeter with a small probe to measure the output voltages of A15Wl s plug Refer to lhble 5 2 and F igure 5 6 17 If the voltages are not within tolerance replace A15 Pewer Supply Troubleshooting 5 9 ...

Page 273: ...at alI times or the other voltages will lot be correct It connects to the motherboard connector A17J3 Pin 4 Pin 1 2 394 696 7 8 0 lO 11 12 A15WlPl Dieeonnectea vohgw N C 126 to loo 22 4to 33 6 22 4to 33 6 N C 9 4to 14 0 4 to 14 N C 32io 48 A J2 connectea Voltagee A15 Preregulatm Label 68to 72 68to 72 17 0 to 18 4 17 0 to 18 4 7 4 to a 0 7 4io a 0 6 7to 7 3 24 6to 28 6 24 6to 28 6 1 5 10 Power Supp...

Page 274: ...to F igure 5 l n A15Wl connecting to the A8 post regulator n the 5 VCPU line through the motherboard n the 5 VDIG line through the motherboard Do the following 1 Switch off the analyzer 2 Ensure that A15Wl is reconnected to A8 Refer to Figure 5 5 3 Remove or disconnect the assemblies listed in lhble 5 3 one at a time and in the order shown The assemblies are sorted from most to least accessible Ta...

Page 275: ...ed LED goes out the particular assembly or one receiving power from it that allows it to go out is faulty q If the red LED is still on after you have checked all of the assemblies listed in lhble 5 3 continue to Check the Operating Temperature able 5 3 Recommended Order for RemovaUDisconnection Assembly Removal or Other Assemblies that Receive To Remove Disconne ion Method Power from the Removed A...

Page 276: ...nd of this procedure q If there does not appear to be a temperature problem it is likely that Al5 is faulty Inspect the Motherboard If the red LED is still on after replacement or repair of A15 switch off the analyzer and inspect the motherboard for solder bridges and other noticeable defects Use an ohmmeter to check for shorts The 5 VD 5 VCPU or 5 VDSENSE lines may be bad Refer to the block diagr...

Page 277: ...5 VD are still off or flashing continue to Check the A8 Fuses and Voltages q If all LEDs are now on steadily except for the 5 VD LED the Al5 preregulator and A8 post regulator are working properly and the trouble is excessive loading somewhere after the motherboard connections at A8 Continue to Remove the Assemblies Check the A8 Fuses and Voltages Check the fuses along the top edge of A8 If any A8...

Page 278: ...green LEDs are off or flashing it is not likely that any of the assemblies listed above is causing the problem Continue to Briefly Disable the Shutdown Circuitry q If alI green LEDs are now on one or more of the above assemblies may be faulty Continue to next step 5 Switch off the analyzer 6 Reinstall each assembly one at a time Switch on the analyzer after each assembly is instaIled The assembly ...

Page 279: ...A8TP4 SDIS to chassis ground with a jumper wire 2 Switch on the analyzer and note the signal mnemonics and test points of any LEDs that are off Immediately resow the jumper wire 3 Refer to the block diagram Figure 5 8 at the end of this chapter and do the foIIowing n Note the mnemonics of any additional signals that may connect to any A8 test point that showed a fault in the previous step n Cross ...

Page 280: ...ost to least accessible lhble 5 4 also lists any associated assemblies that are supplied by the assembly that is being removed After each assembly is removed or disconnected switch on the analyzer and observe the LEDs Note w When extensive disassembly is required refer to Chapter 14 Assembly Replacement and Post Repair Procedures n H Refer to Chapter 13 Replaceable Parts to identify specific cable...

Page 281: ...om Card Cage None Remove from Card Cage None Remove from Card Cage None Remove from Card Cage None F move from Card Cage None Disconnect W36 and W36 A20 Disk Drive Disconnect W17 Al Front Panel Keyboard Disconnect W27 A25 Test Set Interface A24 Transfer Switch AZ3 LED Front Panel Inspect the Motherboard Inspect the Al7 motherboard for solder bridges and shorted traces In particuIar inspect the tra...

Page 282: ... supplies on A8 have been shut down Check the temperature of the operating environment it should not be greater than 55 OC 131 OF The fan should be operating and there should be at least 15 cm 6 in spacing behind and all around the analyzer to allow for proper ventilation n PROBEPOWER SHUT DOWN The front panel RF probe biasing supplies are shut down due to excessive current draw These supplies are...

Page 283: ...he following pins ASP2 pins 6 and 36 12 6 volts A8P2 pins 4 and 34 15 volts n If the LEDs are off continue with Check the Fuses and Isolate A8 Check the Fuses and Isolate A8 Check the fuses associated with each of these supplies near the A8 test points If these fuses keep burning out a short exists Try isolating A8 by removing it from the motherboard connector but keeping the cable A15Wl connected...

Page 284: ...hort between the motherboard connector pins XA8P2 pins 6 and 36 12 6 V and the front panel probe power connectors Also check between motherboard connector pins XA8P2 pins 4 and 34 15 V and the front panel probe power connectors Power Supply Troubleshooting 5 21 ...

Page 285: ...ated on A8 but changes the voltage to the fan depending on airflow and temperature information Its voltage ranges from approximately 1 0 volts to 14 7 volts and connects to the Al7 motherboard via pin 31 of the ASP1 connector Measure the voltages of these supplies while using an extender board to allow access to the PC board connector A8Pl Short ASTP3 to Ground If there is no voltage at A8Pl pins ...

Page 286: ...without pressing I typically signal a power supply or A9 CPU problem Since the A9 CPU assembly is the easiest to substitute do so If the problem ceases replace the A9 If the problem continues replace the Al5 preregulator assembly Power Supply Troubleshooting 5 23 ...

Page 287: ......

Page 288: ...consist of the following n CPU q A9 n Display q A2 A18 A19 A27 n Front Panel q Al A2 n Digital IF q A10 n Rear Panel Interface q Al6 Begin with CPU Troubleshooting then proceed to the assembly that you suspect has a problem If you suspect an HP IB interface problem refer to HP IB Failures at the end of this chapter Digital Control Troubleshooting 6 1 ...

Page 289: ...Digital Control Group Block Diagram Figure 6 1 Digital Control Group Block Diagram 6 2 Digital Control Troubleshooting ...

Page 290: ...s the faulty assembly 2 Order a replacement assembly Refer to Chapter 13 Replaceable Parts 3 Replace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants n 5 Perform the necessary performance tests Refer to Chapter 2 System Veri...

Page 291: ...ng 1 Remove the power line cord from the analyzer 2 Set the analyzer on its side 3 Remove the two comer bumpers from the bottom of the instrument with a T 15 TORX screwdriver 4 Loosen the captive screw on the bottom cover s back edge 5 Slide the cover toward the rear of the instrument 6 Move the switch to the NORMAL position as shown in Figure 6 2 7 Replace the bottom cover and power cord 64 Digit...

Page 292: ...The fifth LED must be viewed by looking to the left at an angle 1 Cycle the power while observing five red LEDs Cycle the power on the analyzer and observe the five red LEDs After an initial pattern the five red LEDs on the A9 CPU board should remain off n If the LEDs remained off then proceed to the assembly that you suspect has a problem n If the LEDs did not remain off switch off the power and ...

Page 293: ...om the front of the instrument Note If Grmware did not load a red LED on the CPU board will be flashing Refer to Loading Firmware in Chapter 3 3 Evaluate results q If either of the following LED patterns remain go to Display Troubleshooting n 0 0 0 0 0 0 0 0 l l a 0 0 l 0 a front of instrument 4 q If any other LED patterns remain replace the A9 CPU after verifying the power supply 6 6 Digital Cont...

Page 294: ...ble There are four criteria against which your display is measured n Background Lamp Intensity n Green Red or Blue Stuck Pixels w Dark Stuck Pixels n Newtons Riis Evaluate the display as follows n If either the Al8 LCD A19 GSP A9 CPU or AZ7 backlight inverter assemblies are replaced perform a visual inspection of the display n If it appears that there is a problem with the display refer to the tro...

Page 295: ...inutes Note This procedure should be performed with a photometer and only by qualified personnel 1 Press Iloo Lxl to set the play intensity at 100 _ _ _ __ _ _ hy 7 5 EEz 2 press 77 imm L62 Ixl to _ _ xi A A __ __ set a white screen test pattern on the display 3 Set the photometer probe to NORMAL Press I on the photometer to switch it on and allow 30 minutes of warm up time Zero the photometer acc...

Page 296: ...service manual for information on display lamp replacement Red Green or Blue Pixels SpeciIlcations Red green or blue stuck on pixeis may appear against a black background m ted for these dots press w 170 Ixl _ _ In a properly working display the following will not occur n complete rows or columns of stuck pixels n more than 5 stuck pixels not to exceed a maximimi of 2 red or blue and 3 green n 2 o...

Page 297: ...than 12 stuck pixels not to exceed a maximum of 7 red green or blue n more than one occurrence of 2 consecutive stuck pixels n stuck pixels less than 6 5 mm apart Newton s Rings To check for the patterns known as Newton s Rings change the display to white by pressing the following keys Figure 6 5 ilhrstrates acceptable and non acceptable examples of Newtons Rings 6 10 Digital Control Troubleshooti...

Page 298: ...3 Rings Acceptable V 4 Rings Unacceptable Figure 6 5 Newtons Rings sb8123d Digital Control Troubleshooting 6 11 ...

Page 299: ...see if there is a flash of light n If the light does not flash suspect the front panel cabling the display lamp or the A27 inverter Troubleshooting a Display with Color Problems 2 Run display service test 74 as described in Chapter 10 Confirm that there are four intensities for each color n If the test passes then continue n If the test fails then suspect the front panel cabling A2 A19 or Al 3 Con...

Page 300: ...is a control problem between A9 and Al A2 See Inspect Cables n located later in this chapter q If at the end of the turn on sequence the channel 1 LED is not on and all HP IB status LEDs are not off continue with Identify the Stuck Key q If you suspect that one or more LEDs have burned out replace the Al keypad assembly Note Port 1 and port 2 LED problems may be caused by the malfunction of the A2...

Page 301: ...rnel Block Nnmber CEl CE2 R L T 6 0 E Response 1 2 Entry m 3 Pm 4 E Ax BfXpOnSe 5 0 Entry 6 0 Entry 7 f f j T Softicey 8 g MtJ Y 9 El Entry 10 Lo n try 11 m Active Channel 12 Active Channel 13 77 Entry 14 b Entry 15 g f softkey 16 GJ StllllUlUS 17 Instrument State 18 F Instrument State 19 StllllUlUS 20 Start StiIllUlW 21 ii2 Instrument State 22 Lsystem Instrument State 23 j jR d softkey 24 aespons...

Page 302: ...dmal Number 26 27 28 29 30 31 32 33 34 35 36 37 38 39 4G47 48 49 50 51 62 63 64 66 able 6 1 Front Panel Key Codes continued LED Pattern CEl CE2 R L T S lotused s l l s Digital Control Troubleshooting 6 15 ...

Page 303: ...bon cable between Al and A2 Make sure the cables are properly connected Replace any bad cables Test Using a Controller If a controller is available write a simple command to the analyzer If the analyzer successfully executes the command the problem is either the A2 front panel interface or W17 A2 to motherboard ribbon cable is faulty 6 16 Digital Control Troubleshooting ...

Page 304: ...al test 0 and preset test 1 z i a f 51 zgz _ _ _ _ 1 Press J J Iaw Ixl to perform a _ _ I _ L _ _ INT tests 2 Then press i J Lxl to see the results of the preset test If either sequence fails press the Q keys to Gnd the tist occurrence of a FAIL message for tests 2 through 20 See lhble 6 2 for further troubleshooting information Digital Control Troubleshooting 6 17 ...

Page 305: ... A Replace A9 AO AlO Remove AlO rerun test If fail replace A9 If paw replace AlC AOiAlO Most likely A0 assembly AlO AO AlP Check analog bus node 17 for 1 MHz If correct Al2 is verified suspectAlO AlO Most likely AlO A2iAlIAg Run test 23 lf fail replace A2 If pass problem is on bus between AS and A2 or on A9 assembly AlB AOz Disconnect A16 and check A9J2 pin 48 for 4 IdIiz clock signal If OK replac...

Page 306: ...e is an HP IB problem in the analyzer perform the following test It checks the internal communication path between the A9 CPU and the Al6 rear panel It does not check the HP IB paths external to the instrument hem m L13 Lxl _ i _ i i __ _ j _ If the analyzer fails the test the problem is likely to be the Al6 rear panel q If the analyzer passes the test it indicates that the A9 CPU can communicate ...

Page 307: ...following problems w Incorrect power levels Perform the Power troubleshooting checks n Phase lock error Perform the Phase Lock Error troubleshooting checks The source group assemblies consist of the following n A3 source n A4 sampler mixer n A7 pulse generator w A11 phase lock w Al2 reference w Al3 fractional N analog n Al4 fractional N digital Source Troubleshooting 7 l ...

Page 308: ...ace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants n 5 Perform the necessary performance tests Refer to Chapter 2 System Verihcation and Performance Tests n Before You Start Troubleshooting Make sure ail of the assemblies ...

Page 309: ......

Page 310: ...ble connections The phase lock diagnostic tools are explained in the Source Group Troubleshooting Appendix and should be used to troubleshoot phase lock problems The equipment setup shown in Figure 7 l can be used throughout this chapter Phase Lock Loop Error Message Check Phase lock error messages may appear as a result of incorrect pretune correction constants To check this possibility perform t...

Page 311: ... the instrument with a T 15 TORX screwdriver d Loosen the captive screw on the bottom cover s back edge e Slide the cover toward the rear of the instrument f Move the jumper to the AI X position as shown in Figure 7 2 g Replace the bottom cover comer bumpers and power cord A9 CPU Assembly Normal Mode Alter Mode Rocker Slide sgs1 me Figure 7 2 Jumper Positions on the A9 CPU Source Troubleshooting 7...

Page 312: ...jumper to the NRM position Then refer to Post Repair Procedures in Chapter 14 to verify operation b Error message visible continue with A4 Sampler Mixer Check A4 Sampler Mixer Check The A4 A5 and A6 R A and B sampler mixers are similar in operation Any sampler can be used to phase lock the source lb eliminate the possibility of a faulty R sampler follow this procedure 1 Remove the W8 cable Al 1Jl ...

Page 313: ...ler Mixer to Phase Lock Cable Connection Diagram 2 If you connected W8 to 3 Ignore the displayed trace but check for phase lock error messages If the phase lock problem persists the R channel sampler is not the problem Source Troubleshooting 7 7 ...

Page 314: ...cope input impedance to 50 ohms _ 2 mess Preset Lsyst j __ __ __ i_ _ _ i_ __ i _ _____i_ _ i _i _ _ i _ __ i _ _ __ _ _ to activate e SoUTce tune SRC ME service mode 3 Use the front panel knob or front panel keys to set the pretune frequency to 300 kHz 30 MHz and 40 MHz Verify the signal frequency on the 0sciIioscope Note In SRC TUNE mode the source output frequency changes in 1 to 2 MHz incremen...

Page 315: ...orm Integrity in SRC Tune Mode The signal observed on the spectrum analyzer will appear jittery as in Figure 7 5 B not solid as in F igure 7 5 A This is because in SRC TUNE mode the output is not phase locked B sg609s Figure 7 5 Phase Locked Output Compared to Open Loop Output in SRC Tune Mode Source Troubleshooting 7 9 ...

Page 316: ...d power changes If the frequency and power output changes are correct skip ahead to Al2 Reference Check located in this chapter If the frequency changes are not correct continue with YO Coil Drive Check with Analog Bus If the power output changes are not correct check analog bus node 3 b Press Marker Lc n The marker should read approximately 434 mu c Press K Lc n The marker should read approximate...

Page 317: ......

Page 318: ...drive lines In source tune mode the voltage difference should vary from approximately 3 5 to 5 0 volts as shown in Figure 7 7 q If the voltages are not correct replace the faulty All assembly q If the output signa ls from the All assembly are correct replace the faulty A3 source assembly q If neither the A11 nor theA3 assembly is faulty continue with the next check 300 000 Ins 150 000 IS 0 00000 s...

Page 319: ...es are described ahead Analog Bus Method counter 2 Press L21 IXJ to count the frequency of the 100 kHz signal 3 Press 1Menu 1500 m Verify that the counter reading displayed ii i__ i on the analyzer next to cnt matches the corresponding 100 kHz value for the CW frequency Refer to Table 7 2 4 Verify the remaining CW frequencies comparing the counter reading with the value in Ihble 7 2 able 7 2 Analo...

Page 320: ...ue for the CW frequency Refer to Pable 7 2 10 Verify the remaining CW frequencies comparing the counter reading with the value in lhble 7 2 n Press TJ l iJ n Press sol KiJiJ 11 Check the results q If aII the counter readings match the frequencies listed in Table 7 2 skip ahead to A13 A14 Fractional N Check q If the counter readings are incorrect at the 500 kHz and 2 MHz settings only go to TN LO a...

Page 321: ...plot for the five signals listed able 7 3 Al2 Reference Frequencies Mnemonic Signal LOCdi0n Description FN1OOkIiZREF 100 kH2 Reference AlSTPb RF2 Phase Lock AllTP9 Reference REP Phase Lock AllTP9 Reference mm Fractional N Lo A14J2 4MHzREF 4 MHZ Reference Al2TP9 2ND Lo Second Lo AEPl 2 4 2ND Lo Second M Al2Pl 2 4 Not an Al2 signal but required for Al2 lowband operation see Analyzer Fh3 e htting Fig...

Page 322: ...rrow and typically 1 5 V in amplitude You may have to increase the oscilloscope intensity to see these pulses See Figure 7 8 100 000 us 0 00000 L 100 000 sg6i OS Figure 7 8 Sharp 100 kHz Pulses at A13TP5 any frequency 7 16 Source Troubleshooting ...

Page 323: ...gnal at the frequencies noted in Figure 7 9 and Figure 7 10 High Band RJW Signal In high band the REF signal is a constant 1 MHz square wave as indicated by Figure 7 9 1 00000 us 0 00000 5 1 00000 us ch 1 SOD 0 auoltm div off o wo VOIU Timsboso 200 ns drv DdCby 0 00000 s sg611 s Figure 7 9 High Band REF Signal 216 MHz CW Source Troubleshooting 7 17 ...

Page 324: ...ncy of the RF output signal Figure 7 10 illustrates a 5 MHz CW signal sg612s Figure 7 10 REF Signal at AllTP9 5 MHz CW q If REF looks good skip ahead to 4 MHz Reference Signal q If REF is bad in low band continue with TN Lo at Al2 Check 7 18 Source Troubleshooting ...

Page 325: ...knob to vary the frequency from 30 to 60 MHz The signal should appear similar to Figure 7 l 1 The display will indicate 10 to 60 8 MHz q If the F N Lo signal is good the Al2 assembly is faulty q If the FN Lo signal is not good skip ahead to A13 A14 Fractional N Check 50 000 0 00000SPD 50 000n c la 2 100 0 mvolts div Timdaaso 10 0rises iv sg613s Figure 7 11 Typical FN LO Waveform at A12Jl SouroeTmb...

Page 326: ...nt source problems because the CPU uses receiver data to control the source At A12TP9 it should appear similar to Figure 7 12 5oo oon rleec 500 000l was ch 1 1 000 volts dav Offset o ooo volts 11rboro 100nsec div OPlDy o oocoo PC sg614s Figure 7 12 4 MHz Reference Signal at A12TP 3 Preset 7 20 Source Troubleshooting ...

Page 327: ...ated by Figure 7 13 the 2nd Lo actually consists of two signals 90 degrees out of phase 1 00000 OO 0 00000mc Figure 7 13 sg615s 90 Degree Phase Offset of High Band 2nd LO Signals 216 MHZ CW In Phase 2nd LO Signals in Low Band The 2nd Lo signals in low band as shown in Figure 7 14 are not phase shifted In low band these signals track the RF output with a 4 kHz offset SourceTroubleshooting 7 21 ...

Page 328: ... Figure 7 14 In Phase Low Band 2nd LO SSgnals 14 MHZ CW sg616s Figure 7 14 In Phase Low Band 2nd LO Signals 14 MHZ CW If any of the signals of Table 7 2 are incorrect the probability is 90 that the Al2 assembly is faulty Either consider the Al2 assembly faulty or perform the Al2 Digital Control Signals Check described ahead 7 22 Source Troubleshooting ...

Page 329: ... LHB LLB Signtll Description L Reference Enable L Hi Band L Low Band Loc8tion Al2P2 6 Al2P2 32 Al2Pl 23 see Analyzer FIBrve ttinB Figure7 15 Preset Figlm 7 16 Preset Finure 7 16 Preset L ENREF Line This is a TI L signal lb observe it trigger on the negative edge In preset state the signal should show activity similar to Figure 7 15 ch 2 Fg z d v offwt Tim bwm sg617s sg617s Figure 7 15 L ENREF Line...

Page 330: ...Check Use the analog bus or an oscilloscope to check the Al4 VCO s ability to sweep from 30 MHz to 60 MHz The faster analog bus method should suffice unless problems are detected Fractional N Check with Analog Bus _ _ __ __ __i _ _ _ z _ _ _ i to sMtch on the andog bus md the x i _ fractional N counter _ i _ 2 Then press Ihnenu_ to set the analyzer to CW mode _ _ 3 Set the instrument as indicated ...

Page 331: ... readings fail the specified limits perform the Al4 VCO Exercise Al4 VCO Range Check with Oscilloscope 1 Remove the W9 HI OUT cable A14Jl to A7 from the A7 assembly and connect it to an oscilloscope set for 50 ohm input impedance Switch on the analyzer Menus and Error Messages for more information on the F RACN TUNE mode 3 Vary the fractional N VCO frequency with the front panel knob and check the...

Page 332: ... a000 VO E T mebase 10 0nsec div Delay 0 00000 set sgdi 9s Figure 7 17 10 MHZ HI OUT Wiweform from A14Jl Ch 2 100 0 mvol a div T nsba 10 0 nmec div sg62Os Figure 7 18 25 MHz El OUT Wiweform from A14Jl 7 26 Source Troubleshooting ...

Page 333: ... the Al3 assembly This procedure substitutes a power supply for the Al3 assembly to check the frequency range of the Al4 VCO 1 Switch off the analyzer and remove the Al3 assembly 2 Put the Al4 assembly on an extender board and switch on the instrument 3 Prepare to monitor the VCO frequency either by a Activating the analog bus and setting the internal counter to the FRACN node or b Connecting an o...

Page 334: ...4 or b First jumping the 15 V internal power supply from A8TP8 to A14TP14 and then jumping the 5 2 V supply from ASTPlO to A14TP14 5 Conhrm that the VCO frequency changes from approximately 30 MHz or less to 60 MHz or more 6 If this procedure produces unexpected results the Al4 assembly is faulty 7 If this procedure produces the expected results continue with the Al4 Divide by N Circuit Check 7 28...

Page 335: ...oduces unexpected results the Al4 assembly is faulty q If this procedure produces the expected results perform the A14 to Al3 Digital Control Signals Check n 6 Remember to replace the Al3 assembly A14 to Al3 Digital Control Signals Check The Al4 assembly generates a ITL cycle start CST signal every 10 microseconds If the VCO is oscillating and the CST signal is not detectable at A14TP3 the Al4 ass...

Page 336: ...D FNBIA6 APU API2 API3 API4 API6 Al3 Location none P2 2 P2 6 TP3 P2 2 P2 6 P2 32 P2 32 P2 3 P2 3 P2 34 P2 34 P2 4 P2 4 P2 36 P2 36 Pl 23 Pl 63 Al4Location L F N H O L O API14 FN LATCH sg622s Figure 7 21 Al4 Generated Digital Control Signals 7 30 Source Troubleshooting ...

Page 337: ...ows relative inactivity of this signal during preset condition The lower trace shows its status during a 16 MHz to 31 MHz sweep with inactivity during retrace only 1 00000 set 0 00000 PC 1 00000 105 sg623s Figure 7 22 H MB Signal at A14Pl 5 Preset and 16 MHZ to 31 MHz Sweep Source Troubleshooting 731 ...

Page 338: ... the spectrum analyzer to the A7 output connector and observe the signal The A7 comb should resemble the spectral display in Figure 7 23 sg624s Figure 7 23 Pulse Generator Output 2 If the analyzer malfunction relates to a particular frequency or range look more closely at the comb tooth there Adjust the spectrum analyzer span and bandwidth as required Even at 3 GHz the comb should look as clean as...

Page 339: ...assembly CW B 16 MHz b Set the spectrum analyzer to a center frequency of 45 MHz and a span of 30 MHz Connect it to the A14 to A7 cable still attached to the Al4 assembly Narrow the span and bandwidth to observe the signal closely 5 If the HI OUT signal is as clean as Figure 7 25 the A7 assembly is faulty Otherwise check the A14 to A7 cable or recheck the A13 A14 fractional N as described ahead Re...

Page 340: ...to the A4 output 1st IF 2 Activate the FRACN TUNE service mode and t e ne ion t _ _ _ _ _ _ i_ _ __ i _ _ _ 50 MHz press Is sol m 3 Activate the SRC TUNE service mode of the analyzer and tune the source to 7 i z ii 50 M press L50 Irln_llE i _ ____ __ ________ i__ _ _ _ _ 4 Set the SRC TUNE frequency to those listed in Table 7 7 and observe the 1st Il waveforms They should appear similar to F igure...

Page 341: ...21293 WL sg627s Figure 7 26 Typical 1st IF WAveform in FRACN lTJNE SRC TUNE Mode All Phase Lock Check At this point the All phase lock assembly appears to be faulty its inputs should have been verified already Nevertheless you may elect to use the phase lock diagnostic routines or check the relevant signals at the assembly itself for confirmation Note If external source mode is the only operating ...

Page 342: ...urce phase lock loop components other than the A11 assembly Phase Lock Check by Signal Examination lb con m that the A11 assembly is receiving the signals required for its proper operation perform the following steps 1 Place the A11 assembly on the large extender board 2 Switch on the analyzer and press Ipreset 3 Check for the signals listed in Ihble 7 8 Ihble 7 8 All Input Signals Mnemonic II0 Ac...

Page 343: ...Figure 7 27 FM Coil Plot with 3 Point Sweep 4 If any of the input signal is not proper refer to the overall block diagram in Chapter 4 Start Troubleshooting Here as an aid to trouble shooting the problem to its source 5 If any of the output signals is not proper the A11 assembly is faulty Source Troubleshooting 7 37 ...

Page 344: ...nnections NO IF FOUND CHECK R INPUT LEVEL means no IF was detected during pretune a source problem Perform the A4 Sampler Mixer Check NO PHASE LOCK CHECK R INPUT LEVEL means the IF was not acquired after pretune a source problem Perform the A4 Sampler Mixer Check earlier in this chapter PHASE LOCK CAL FAILED means that a calculation of prettme values was not successful a source or receiver failure...

Page 345: ... menu in Chapter 10 Service Key Menus and Error Messages for more information _ 3 Press p I to pause the phase lock sequence and determine where the __ L source is trying to tune when lock is lost Refer to Source theory in Chapter 12 Theory of Operation for additional information regarding band related problems Then use the procedures in this chapter to check source functions at specific frequenci...

Page 346: ...ave read Chapter 4 Start Troubleshooting Here n Follow the procedures in the order given unless instructed otherwise The receiver group assemblies consist of the following w A4 5 6 sampler mixer assemblies n A10 digital IF assembly Receiver Troubleshooting 8 1 ...

Page 347: ...ies the faulty assembly 2 Order a replacement assembly Refer to Chapter 13 Replaceable Parts 3 Replace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures n 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants n 5 Perform the necessary performance tests Refer to Chapter 2 System ...

Page 348: ...m at one of the test ports The RF output power is automatically reduced to 85 dBm The annotation PJ appears in the left margin of the display to indicate that the power trip function has been activated lb reset the analyzer s power and regain control of the power level do the following 1 Remove any devices under test which may have contributed excess power to the input 2 fiess m Lxl to return the ...

Page 349: ...p 2 3 Check the flatness of the input A trace by comparing it with the trace in Figure 8 2 Check the flatness of the input B trace by comparing it with the trace in Figure 8 2 __ _ p fie3 1Meao _ _ _ iiii 2 z x z ii _ _L cz m q If neither of the input traces resembles Figure 8 2 continue with Troubleshooting When All Inputs Look Bad q If at least one input trace resembles Figure 8 2 continue with ...

Page 350: ...START 030 000 MHZ Figure 8 2 Typical Good Trace Receiver Troubleshooting 8 5 ...

Page 351: ...z signal and substituting the A10 assembly or checking the signals listed in Table 8 l Check 2nd LO Check the 2nd Lo signal Refer to the Al2 Reference Check section of Chapter 7 Source Troubleshooting for analog bus and oscilloscope checks of the 2nd Lo and waveform illustrations q If the analyzer passes the checks continue to Check the 4 MHz REF Signal q If the analyzer fails the checks perform t...

Page 352: ...2 36 and path q If the signal is good the probability is greater than 90 that the A10 assembly is faulty For confirmation perform Check A10 by Substitution or Signal Examination 500 000 nmec 0 0 0 0 0 0 ma0 soo 000 Mac iA I I I f I I A I t I I Ch 1 1 000 volt s d v Offmet 0 000 Volts TImebase 100 nwc div OIlOY o ooooo se sg603s Figure 8 3 4 MHz RJIF Waveform Receiver Troubleshooting 8 7 ...

Page 353: ... of those lines are identified in Ihble 8 1 It is possible that the A9 assembly may not be providing the necessary signals These signal checks allow you to determine which assembly is faulty Some of the waveforms are illustrated by Figure 8 4 and Figure 8 5 If the substitute assembly shows no improvement or if all of the input signals are valid continue with Check the 4 kHz Signal Otherwise troubl...

Page 354: ...ta6 Digital lF data 7 MSB Digital IF enable 0 Digital IF enable 1 Digital IF enable 2 Digital IF conversion camp Digital IF aerial clock DigitallF aerial data out L enable digital IF L interrupt DSP A10 LOCAiOU P2 27 P2 67 P2 28 P2 63 F 20 P2 69 P2 30 P2 60 P2 34 P2 6 P2 36 F 33 P2 4 P2 3 P2 17 P2 2 SW source Aopz 27 AQP2 67 AQP2 28 AOPZ 63 AQP2 20 AW2 60 ABP2 30 Am 60 AQP2 34 Mm 6 AoP2 36 AlOP2 3...

Page 355: ...is on the right side and is the most volatile sg602s Figure 8 4 Digital Data Lines Observed Using L INTCOP as Trigger Ch 1 4 000 vo1tc cirv Ch 2 1 000 voltddrv T boss 20 0 dd2V sg604s Figure 8 5 Digital Control Lines Observed Using L INTCOP as Trigger g 10 Receiver Troubleshooting ...

Page 356: ...put of the sampler mixer in question at the Al0 assembly The input and output access pins are listed in lhble 8 2 The signal should resemble the waveform of Figure 8 6 q If the signal is good continue with Check the Trace with the Sampler Correction Constants Off n q If the signal is bad skip ahead to Check 1st Lo SiiaI at Sampler Mixer ItLble 8 2 2nd IF 4 kHz Signal Locations I Mnemonic I DeecrlP...

Page 357: ......

Page 358: ...he Sampler Magnitude and Phase Correction Constants Test 53 adjustment described in Chapter 3 Adjustments and Correction Constants If the trace remains bad after this adjustment the A10 assembly is defective 4 04 sg643d Figure 8 7 Typical Trace with Sampler Correction On and off Receiver Troubleshooting 8 13 ...

Page 359: ...r Check the 2nd LO signal at the pins identified in 0ble 8 3 Refer to the Al2 Reference Check in Chapter 7 Source Troubleshooting for analog bus and oscilloscope checks of the 2nd LO and waveform illustrations Ihble 8 3 identifies the signal location at the samplers and the Al2 assembly Ihble 8 3 2nd LO Locations Mnemonic Description ZndL01 2nd Lo 0 degrees 2nd Lo 2 2nd Lo 9O degrees Sampler LOCdl...

Page 360: ...alyzer but render incorrect measurement data n Failures which impede the normal functioning of the analyzer or prohibit the use of a feature This chapter addresses the First category of failures which are usually caused by the following n operator errors n faulty calibration devices or connectors n bad cables or adapters w improper calibration techniques These failures are checked using the follow...

Page 361: ...ies the faulty assembly 2 Order a replacement assembly Refer to Chapter 13 Replaceable Parts 3 Replace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants n 5 Perform the necessary performance tests Refer to Chapter 2 System Ve...

Page 362: ...nspecting the device connectors If any calibration device is obviously damaged or out of mechanical tolerance replace the device Inspect the Error Ikmns Error terms are a measure of a system a network analyzer calibration kit and any cables used As required refer to Chapter 11 Error Terms for the following n The specific measurement calibration procedure used to generate the error terms n The rout...

Page 363: ...alibration kit devices Loads If the directivity error term looks good the load and the test port are good If directivity looks bad connect the same load on the other test port and measure its directivity If the second port looks bad as if the problem had shifted with the load replace the load If the second port looks good as if the load had not been the problem troubleshoot the llrst port Shorts a...

Page 364: ...hows the return loss trace of a good left side and faulty cable Note that the important characteristic of a cable trace is its level the good cable trace is much lower not its regularity Refer to the cable manual for return loss specifications CHl Sll log MAG 5dB REF 0 dB I 28 426 dB CHl Sll log WAG 5 dB REF 0 dB I 15 524 dE START 030 000 MHZ STOP 6 000 000 000 MHz Figure 9 1 Typical Return LOSS T...

Page 365: ... good shod to poti 1 Press c 1 ad turn the front panel knob to enter enough electrical delay so that the trace appears as a dot at the left side of the circle See Figure 9 2a left Replace the good short with the questionable short at port 1 The trace of the questionable short should appear very similar to the known good short 3 CoMect e good open to port 1 mess lscale and turn the front panel knob...

Page 366: ...Figure 9 2 Typical Smith Chart Traces of Good Short a and Open b Accessories Troubleshooting 9 7 ...

Page 367: ... two groups 1 Internal Diagnostics 2 Service Features When applicable the HP IB mnemonic is written in parentheses following the key See HP IB Service Mnemonic Definitions at the end of this section Error Messages The displayed messages that pertain to service functions are also listed in this chapter to help you n Understand the message n Solve the problem Sarvics Kay Menus and Error Messages 1O ...

Page 368: ...wing keys access the internal diagnostics menus sg6104e Figure 10 l Internal Diagnostics Menus Note Throughout this service guide these conventions are observed o m are labeled front pane1 keys q itre dispIay detied keys in the menus c q HP IB COMMANDS when applicable follow the keystrokes in parentheses 1O 2 Service Key Menus and Error Messages ...

Page 369: ... divided by function into the following categories 0 Internal Tests O 20 q External Tests 21 26 q System Verification Tests 27 43 13 Adjustment Tests 44 58 q Display Tests 59 65 0 Test Patterns 66 80 lb access the tlrst test in each category press the category softkey To access the other tests use the numeric keypad step keys or front panel knob The test number name and status abbreviation will be...

Page 370: ...DONE DONE 6 a p s i F _ _ _ _ J j EmT Lz s s i 22 A W i runs the selected test and may display these softkeys y I TEBl continues the selected test _ _ _ ___ __ m TESRB alters correction constants during adjustment tests J Y TESR4 displays the next choice TESR6 chooses the option indicated __ __ _ _ J Em t erminates the test and returns to _ _ _ the tests menu evaluates the analyzer s internal oper...

Page 371: ...repeat function on and off When the function is ON the selected test will rtm 10 000 times unless you press any key to stop it The analyzer shows the current number of passes and fails toggles the record function on and off When the function is ON certain test results are sent to a printer via HP IB This is especially useful for correction constants The indent must be in system controller mode or ...

Page 372: ...nted graphs of verification results when activated during a system verification Edit List Menu To access this menu press Z T _ L __ii _ii_ __ __ _ I i fj gi __i j SEDI D selects a segment frequency point to be edited deleted from or added to the current data table Works with the entry controls allows modification of frequency cal factor and loss values previously entered in the current data table ...

Page 373: ...noted 0 ALL INT Runs only when selected It consists of internal tests 3 11 13 16 and 20 Use the front panel knob to scroll through the tests and see which failed If aIl pass the test displays a PASS status Each test in the subset retains its own test status 1 PRESET Runs the following subset of internal tests first the ROM RAM tests 2 3 and 4 then tests 5 through 11 14 15 and 16 If any of these te...

Page 374: ...e 10 2 A9 CPU Assembly s400 I Normal Mode Destructive SRAM Test Enabled Rocker Slide sge117e Figure 19 2 A9 CPU Switch Positions 4 Main DRAM Verifies the A9 CPU main memory DRAM with a non destructive write read test pattern A destructive version of this test is run during power on For additional information see Internal Tests near the front of this section and the Digital Control Troubleshooting ...

Page 375: ...data buffers and A10 digital IF the 4 MHz clock from the Al2 reference DSP Control Tests the ability of the A9 CPU digital signal processor to write to the control latches on the A10 digital IF Feedback is verified by the main processor It primarily tests the A10 digital IF but failures may be caused by the A9 CPU Fr F n Wr Rd Tests the ability of the A9 CPU main processor to write read to the fro...

Page 376: ...each data point represents the relative width of a particular ADC code Ideally ah codes have the same width different widths correspond to non Iinearities 18 ADC Ofs This runs only when selected It tests the ability of the offset DAC on the A10 digit IF to apply a bias offset to the IF signals before the ADC input This runs only when selected 19 ABUS Wt Tests analog bus accuracy by measuring sever...

Page 377: ... 23 24 Port 2 Op Cbk Same as 21 but tests PORT 2 Fr Pan Seq Tests the front panel knob entry and all A1 front panel keys as well as the front panel microprocessor on the A2 assembly It prompts the user to rotate the front panel knob then press each key in an ordered sequence It continues to the next prompt only if the current prompt is correctly satisfied Fr Fan Diag Similar to 23 above but the us...

Page 378: ...r a measurement calibration It must be done before service internal tests 28 29 30 or 31 are performed Ver Dev 1 Recalls verification Iimits from disk for verification device 1 in aII applicable S parameter measurements It performs pass fail Iimit testing of the current measurement Ver Dev 2 Same as 28 above for device 2 Ver Dev 3 Same as 28 above for device 3 Ver Dev 4 Same as 28 above for device...

Page 379: ... locked loop operation Run tests 44 45 and 46 first Disp 2 Ex Not used in Adjustments Writes the secondary test pattern to the display for adjustments Press Preset to exit this routine IF Step Cm Measures the gain of the IF ampliliers A and B only located on the A10 digital IF to determine the correction constants for absolute amplitude accuracy It provides smooth dynamic accuracy and absolute amp...

Page 380: ...Stores the option keyword required for Option 002 006 010 or any combination Not used Init EEPEOM This test initializes certain EEPROM addresses to zeros and resets the display intensity correction constants to the default values Also the test will not alter the serial number and correction constants for Option 002 006 and 010 1O 14 Service Key Menus and Error Messages ...

Page 381: ...he DRAM and then verifying that it can be read back Main VRAM Tests the VRAM by writing all zeros to one location in each bank and then writii all ones to one location in each bank Finally a walking one pattern is written to one location in each bank VRAM bank Tests all the cells in each of the 4 VRAM banks VRAMhideo Verifies that the GSP is able to successfully perform both write and read shift r...

Page 382: ... The output comes from the RAM on the GSP board it is then split The signal goes through a video DAC and then to an external monitor or through some buffer amplifiers and then to the internal LCD display If the external display looks good but the internal display is bad then the problem may be with the display or the cable connecting it to the GSP board This pattern is also very useful when using ...

Page 383: ...ack vertical stripes Each stripe should be clearly visible A limited bandwidth would smear these lines together This is used to test the quality of the external monitor 77 I t Pat 12 Displays a repeating gray scale for troubleshooting using an oscilloscope It is similar to the 16 step gray scale but is repeated 32 times across the screen Each of the 3 outputs of the video palette will then show 32...

Page 384: ... Figure 10 3 Service Feature Menus Service Modes Menu allows you to control and monitor various circuits for troubleshooting tests the Al3 and Al4 fractional N circuits It dOWS YOU to directly control and monitor the output frequency of the fractional N synthesizer 10 MHz to 60 MHZ Set the instrument to CW sweep mode ami then set F RACN TUNE ON lo 18 Service Key Menus and Error Messages ...

Page 385: ...escribed in Source Troubleshooting chapter accesses the functions that ailow you to adjust the source _ tests the p me fun ions of the phase lock and source assemblies Use the entry controls to set test port output to any frequency from 300 KHz to 6 GHz When in this mode q Set analyzer to CW frequency before pressing H q Test port output is 1 to 6 MHz above indicated entered frequency q Instrument...

Page 386: ...esponse in the R reference channel For example in a high power test application using band limited lllters for R channel phase locking displays a phase lock sequence at the beginning of each band This sequence normally occurs very rapidly making it difficult to troubleshoot phase lock problems Switching this mode ON slows the process down allowing you to inspect the steps of the phase lock sequenc...

Page 387: ...the A and B attenuation circuits they cannot be switched independently Be aware that input signal levels above 30 dBm at the sampler input will saturate the ADC and cause measurement errors Switches in both of the A10 IF attenuators for checking the A10 IF gain amplifier circuits Small input signals will appear noisy and raise the apparent noise floor of the instrument j _ __ 3 7 For factory use o...

Page 388: ...cilloscope or frequency counter The next few paragraphs provide general information about the structure and operation of the analog bus See Analog Bus Nodes n for a description of each individual node Refer to the Overall Block Diagram in the Start Troubleshooting chapter to see where the nodes are located in the instrument The analog bus consists of a source section and a receiver section The sou...

Page 389: ...mode SOURCE PLL must be ON for the counter to be updated at each bandswitch The counter works in swept _ _ ____ modes or in CW mode It can be used in conjunction with S for troubleshooting phase lock and source problems To read the counter overHP ES use the command OUTPCNTR Notes n The display and marker units U correspond to volts n Nodes 17 1st IF and 24 2nd LO are unreliable above 1 MHz n About...

Page 390: ...c To do this connect the equipment to the AUX INPUT BNC connector on the rear panel and press _ stilly is highlighted _ _ Caution To prevent damage to the analyzer Ilrst connect the signal to the rear panel AUX INPUT and then switch the function ON switches the internal counter off and removes the counter display from the display The counter can be switched on with one of the next three keys Note ...

Page 391: ...4 fractional N VCO frequency at the node shown on the Overall Block Diagram m in the Start Troubleshooting chapter switches the counter to monitor the Al4 fractional N VCO frequency after it has been divided down to 100 kHz for phase locking the VCO ServiseKeyMenusandErrorMessages lo 26 ...

Page 392: ...al order and are grouped by assembly Refer to the Overall Block Diagram for node locations A3 Source Ib observe six of the eight A3 analog bus nodes not node 5 or 8 perform step A3 to set up a power sweep on the analog bus Then follow the node specific instructions 1O 26 Service by Menus and Error Messages ...

Page 393: ... main power DAC It sets the reference voltage to the ALC loop At normal operation this node should read approximately 4 volts at 0 dBm with a slope of about 150 mV dB This corresponds to approximately 4 volts from 15 to 10 dBm START 15 B dh cw 3 888 088 am PtHZ STOP IB 0 am sg6262d Figure 10 4 Analog Bus Node 1 Service Key Menus and Error Messages 1O 27 ...

Page 394: ...ress the following to view analog bus node 2 Node 2 measures the voltage on the internal voltage controlled oscillator Or in normal operation it should read lV GHz sg6263d Figure 10 5 Analog Bus Node 2 W 28 Service Key Menus and Error Messages ...

Page 395: ...o view analog node 3 Node 3 measures the current that goes to the main IF amplifier At normal operation this node should read about 15 mA from 30 kHz to 299 kHz 130 mA from 300 kHz to 3 GHz 500 mA from 3 GHz to 6 GHz Service Key Menus and Error Messages 1O 29 ...

Page 396: ... 3 i y bus men press IMeas a l j Node 4 detects power that is coupled and detected from the RF OUT arm to the ALC loop Note that the voltage exponentially follows the power level inversely Flat segments indicate ALC saturation and should not occur between 15 dBm and 10 dBm 1O 30 Service Key Menus and Error Messages ...

Page 397: ... temperature so that the frequency can be predicted Node 6 Integ ALC leveling integrator output Perform step A3 to set up a power sweep on the analog bus Then press Meas u jg x4g Ixl iiixz ggi SC i A _ i A i _ Node 6 displays the output of the summing circuit in the ALC loop Absolute voltage level variations are normal When node 6 goes above 0 volts the ALC saturation is indicated sg6266d Figure 1...

Page 398: ...with a slope of 33 mv dB with approximately 0 volts at 3 dBm Absolute voltage level variations are normal Flat segments indicate ALC saturation and should not occur between 15 dBm and 10 deem The proper waveform at node 7 indicates that the circuits in the A3 source ALC loop are normal and the source is leveled t i i i i i i i i i 1 sg6267d Figure 10 9 Analog Bus Node 7 Node 8 A3 Gnd ground 1O 32 ...

Page 399: ... i Perform step AlO above and then press IMeas Check for a flat line at approximately 0 37 V This is used as the voltage reference in the Analog Bus Correction Constants adjustment procedure The voltage level should be the same in high and low resolution the absolute level is not critical Node10 2 50 V 2 50 V reference Service Key Menus and Error Messages lo 33 ...

Page 400: ...ctor Look at the driving voltage on one display channel while displaying the S parameter response of the test device on the other display channel _ _ _ With JKK EY switched ON you can examine the analyzer s analog bus nodes with eaem equipment see f under the An g Bus Menu _ _ i 1 _ A s x heading For HP IB considerations see HP 1B Service Mnemonic Definitions located later in this chapter Node 12 ...

Page 401: ...s X rmr 141 a w Ixl c p g The trace should be a flat line across the entire operation frequency range within 0 3 V one division of the reference value Vbb Ref is used to compensate for ECL voltage drift sg6266d Figure 10 10 Analog Bus Node 14 Servics Ksy Menus and Error Messages lo 35 ...

Page 402: ...source pretune voltage This node displays the source pretune signal and should look like a stair stepped ramp Each step corresponds to the start of a band Figure 10 11 Analog Bus Node 15 1046 Service Key Menus and Error Messages ...

Page 403: ...tage ramp like the one shown in Figure 10 12 If this waveform is correct you can be confident that the All phase lock assembly the A3 source assembly the A13 A14 fractional N assemblies and the A7 pulse generator are working correctly and the instrument is phase locked If you see anything else refer to the Source Troubleshooting chapter sg6270d Figure 16 12 Analog Bus Node 16 Service Key Menus and...

Page 404: ... 2 to 15 999 MHz same as entered 16MHzto6GHz 1MI h This node displays the IF frequency see node17 as it enters the All phase lock assembly via the A4 R sampler assembly This signal comes from the R sampler output and is used to phase lock the source sg6271 d Figure 10 13 Counter Readout Location 1O 38 Service Key Menus and Error Messages ...

Page 405: ...r in band l 3 3 to 16 MHz The low level about 1 7 V means IF is in the passband of the 6Iter This node can be used with the FRAC N TUNE and SRC TUNE service modes sg6272d Figure 19 14 Analog Bus Node 18 Node 19 IF Det 2W IF after 16 MHz IUter This node detects IF after the 16 MHz fiIter iimiter The 6Iter is used during pretune and acquire but not in band 1 Normal state is a flat Iine at about 1 7 ...

Page 406: ...entire frequency band at least 0 5 V greater than Vbb node 14 The correct trace indicates the presence of IF after the lirst 30 MHz filter limiter sg631 s Al2 Reference Figure 10 15 Analog Bus Node 20 Ib observe the Al2 analog bus nodes perform step A12 below Then follow the node specific instructions Step A12 Press 1040 Service Key Menus and Error Messages ...

Page 407: ...e 22 Al2 Gnd 1 ground Node 23 VCO Tune Al2 VC0 tuning voltage The trace should show a voltage step as shown in Figure 10 16 At normal operation the left half trace should be 0 flOO0 mV and the right half trace should be 100 to 200 mV higher that is one to two divisions If the trace does not appear as shown in Figure 10 16 refer to the High Low Band Transition Adjustment in the Adjustments and Corr...

Page 408: ...hange to values very close to those indicated below 1 F reqnency Entered 1 CounterReading Node 25 PL Ref phase lock reference perform step A12 ad then press m 125 Lxl _ _ LMenu L _ ii _s This node counts the reference signal used by the phase comparator circuit on the All phase lock assembly As you vary the frequency the counter reading should change as indicated below 1042 Service Key Menus and E...

Page 409: ... 2 _ _ s T si Ii Y This node displays the voltage used to fine tune the Al2 reference VCXO to 40 MHz You should see a flat line at some voltage level the actual voltage level varies from instrument to instrument Anything other than a flat line indicates that the VCXO is tuning to different frequencies Refer to the Frequency Accuracy adjustment procedure Node 28 Al2 Gnd 2 Ground reference Al4 Fract...

Page 410: ...e functioning correctly and the VCO is phase locked the trace should look Iike Figure 10 17 Any other waveform indicates that the FN VCO is not phase locked The vertical lines in the trace indicate the band crossings The counter can also be enabled to count the VCO frequency in CW mode sg6274d Figure 10 17 Analog Bus Node 29 1044 Service Key Menus and Error Messages ...

Page 411: ...alog bus counter gate You should see a flat line at 5 V across the operating frequency range The counter gate activity occurs during bandswitches and therefore is not visible on the analog bus To view the bandswitch activity ok at is node on an oscilloscope using Refer to mder the Analog L L A A w A A i i i n ____ _i Bus Menu heading Service Key Menus and Error Messages 1045 ...

Page 412: ...of the display Use the front panel knob entry keys or step keys to enter the memory address of interest displays the data at the accessed memory address allows you to change the data at the memory _ C__ _ _ z i c ad ess accessed by the p softkey Use the front panel knob entry keys or step keys to change the data The ASCC switch must be in the AIXER position in order to poke resets or clears the me...

Page 413: ...of the display as shown in Figure lo 19 below The analyzer s serial number and installed options are also displayed Another way to display the Grmware revision information is to cycle the line power I REFO dB START 030 000 MHz STOP 6 000 000 000 MHz dg632e Figure 10 19 Location of Firmware Revision Information on Display Service Key Menus and Error Messages 1047 ...

Page 414: ... also provided in the Programming Guide Invoking Tests Remotely Many tests require a response to the displayed prompts Since bit 1 of the Event Status Register B is set bit 1 service routine waiting any time a service routine prompts the user for an expected response you can send an appropriate response using one of the following techniques n Read event status register B to reset the bit n Enable ...

Page 415: ...ABon Outputs the counter s frequency data Reads any prompt message sent to the error queue by a service routine Outputs the integer status of the test most recently executed Status codes are those listed under TST Executes the power on self test internal test 1 and outputs an integer test status Status codes are as follows 0 pass 1 fail 2 in progress 3 not available 4 not done 5 done Service Key M...

Page 416: ...ocation n chapter in the HP 87533 Network Anulgm User s Guide for more information about the SRAM memory BATTERY LOW STORE SAVE REGS TO DISK Error Number The battery protection of the non volatile SRAM memory is in 184 danger of failing If this occurs all of the instrument state registers stored in SRAM memory will be lost Save these states to a disk and refer to the Assembly Replacement and Post ...

Page 417: ...Constants chapter CORRECTION TURNED OFF Error Number Critical parameters in your current instrument state do not 66 match the parameters for the calibration set therefore correction has been turned off The critical instrument state parameters are sweep type start frequency frequency span and number of points CURRENT PARAMETER NOT IN CAL SET Error Number Correction is not valid for your selected me...

Page 418: ...r to the disk 39 drive operating manual DISK MESSAGE LENGTH ERROR Error Number The analyzer and the external disk drive aren t communicating 190 properly Check the HP43 connection and then try substituting another disk drive to isolate the problem instrument DISK noton not connected wrong addrs Error Number The disk cannot be accessed by the analyzer Verify power to 3 8 the disk drive and check th...

Page 419: ...enough memory space for the power meter 154 calibration array Increase the available memory by clearing one or more save recall registers or by reducing the number of points NO CALIBRATION CURRENTLY I N PROGRESS Error Number The softkey is not valid unless a ___i ____i i i _ 69 calibration is already in progress Start a new calibration NOTENOUGHSPACEONDISKFORSTORE Error Number The store operation ...

Page 420: ...Number The tist IF signal was detected at pretune but phase lock could 7 not be acquired Refer to the Source Troubleshooting chapter NO SPACE FOR NEW CAL CLEAR REGISTERS Error Number You cannot store a calibration set due to insufficient memory 7 0 You can free more memory by clearing a saved instrument state from an internal register which may also delete an associated calibration set if all the ...

Page 421: ...oximately 14 dBm at one of the test 57 ports The RF output power is automatically reduced to 85 dBm The annotation PJL appears in the left margin of the display to indicate that the power trip function has been activated When this occurs reset the power to a lower level aen toggle the softkey to sMtch on Q e _ i _ _ _ _L B __i_z z u power again PARALLEL PORT NOT AVAILABLE FOR GPIO Error Number You...

Page 422: ...k calibration was initiated and the first IF detected but a problem prevented the calibration from completing successfully Refer to Chapter 3 Adjustments and Correction Constants and execute pretune correction test 48 This message may appear if you connect a mixer between the RF output and R input before turning on frequency offset mode Ignore it it will go away when you turn on frequency offset T...

Page 423: ...onsistent Verify that 118 the equipment is set up correctly If so preset the instrument and restart the operation POWER SUPPLY HOT Error Number The temperature sensors on the A8 post regulator assembly 21 have detected an over temperature condition The power supplies regulated on the post regulator have been shut down Refer to the Power Supply Troubleshooting chapter POWER SUPPLY SHUT DOWN Error N...

Page 424: ...on PRINTER not handshaking Error Number The printer at the parallel port is not responding 177 PRINTER noton not connected wrongaddrs Error Number The printer does not respond to control Verify power to the 24 printer and check the HP IB connection between the analyzer and the printer Ensure that the printer address recognized by the analyzer matches the HP B3 address set on the printer itself PRO...

Page 425: ...s to a disk SELFTFST n FAILED Service Error Internal test n has failed Several internal test routines are Number 112 executed at instrument preset The analyzer reports the first failme detected Refer to the internal tests and the self diagnose feature descriptions earlier in this chapter SOURCEPOWERTLJRNElDOFF RESET UNDER POWERMENU Information You have exceeded the maximum power level at one of th...

Page 426: ... Service Error Your equipment setup for the adjustment procedure in progress Number 115 is not correct Check the setup diagram and instructions in the Adjustments and Correction Constants chapter Start the procedure again WRONG DISK FORMAT INITIALIZE DISK Error Number You have attempted to store load or read hle titles but your 7 7 disk format does not conform to the Logical Interchange Format LIF...

Page 427: ...tails on the theory of error correction refer to the Application and Operation Concepts chapter of the HP 8753ENetwork Anulgm User s Guide Error YLlxms Can Also Serve a Diagnostic Purpose Specific parts of the analyzer and its accessories directly contribute to the magnitude and shape of the error terms Since we know this correlation and we know what typical error terms look like we can examine er...

Page 428: ...hile troubleshooting q All parts of the system including cables and calibration devices can contribute to systematic errors and impact the error terms q Connectors must be clean gaged and within specification for error term analysis to be meaningful q Avoid unnecessary bending and flexing of the cables following measurement calibration minimizing cable instability errors q Use good connection tech...

Page 429: ...ection procedures 1 Set any measurement parameters that you want for the device measurement power format number of points IF bandwidth 2 To access the measurement correction menus press 3 If your calibration kit is different than the kit specified under the T s key press A _ i s A Aii T a s d you type of kit 4 To select the correction type press 5 Connect a shielded open circuit to PORT 1 ErrorTer...

Page 430: ...NALYZER APC 7 24 INCH ag LOAD LOAD DIRECT CONNECTrON FOR TRANSMISSION HP 8753E NETWORK ANALYZER FOR REFLECT I ON HP 8753E NETWORK ANALYZER TEST PORT 2 Figure 11 l Standard Connections for Full Two Port Error Correction 114 Error Terms ...

Page 431: ... displayed trace has settled press y p vy The analyzer tmderlines the I softkey after it measures the standard Repeat the open short load measurement descried above but connect the i i i devices h turn to PORT 2 md use the Ai_ jj t j 9 _ ___ md 2 s softkeys lb compute the reflection correction coefficients press lb start the transmisf n portion of the come ion press Make a through connection betwe...

Page 432: ......

Page 433: ...asure your device under test lhble 11 l Calibration CoefKcient lkrms and lksts calibration Coellleient calibratioll lhbE PO l pert and Isolation xkst 2 pod NUDlbC r 1 i or Ex ED ED EDF 32 2 ET Ed ES ESF 33 3 ER ERF 34 4 EXF 36 6 ELF 36 6 ETF 37 7 JbR 33 3 R 30 0 ERR 40 10 EXR 41 11 ELR 42 12 l R 43 WYrEsi Kenning oflirst subscript D directivity S source match R reflection tracking X crosstalk L lo...

Page 434: ...ptions section and to previously measured data If data is not available from previous measurements refer to the typical uncorrected performance specifications listed in lhble 11 2 5 Make a hardcopy of the measurement results a Connect a printing or plotting peripheral to the analyzer b press LLocal and seIect the i A i 1 appropriate peripheral to verify that the HP IR address is set correctly on t...

Page 435: ...ical performance without error correction RF cables are not used except as noted Related error terms should be within these values able 11 2 Uncorrected System Performance DilWtiVi Source Match had Match Reflection Tracking Tranamisaion Tracking Croestallr Frequency Jlange GE o ooo3 to 3 0 3 0 to 6 0 SodB 26 dB 16 dB 14 dB 16dB 14 dB fl 6 dB 0 6 dl3 2 6 dB f1 6 dB 0 6 dB 2 6 dB OodB SodB Deviation...

Page 436: ...tion include the following information n significance of each error term n typical results following a full 2 port error correction n guidelines to interpret each error term The same description applies to both the forward F and reverse R terms 1 1 1 0 ErrorTerms ...

Page 437: ... error of the test port is determined by measuring the reflection Sll S22 of the load during the error correction procedure S cant System Components w load used in the error correction calibration n test port connectors n test port cables Affected Measurements Low reflection device measurements are most affected by directivity errors HI d i i i i i i i i i I 4 04 sg632s Figure 11 2 Typical EDF EDR...

Page 438: ... driven port Signifkant System Components w load calibration kit device w open calibration kit device n short calibration kit device n bridge n test port connectors n bias tees w step attenuator n transfer switch n test port cables Affected Measurements Reflection and transmission measurements of highly reflective devices are most affected by source match errors sg633s Figure 11 3 Typical ESF ESB ...

Page 439: ...r B input path Significant System Components n open calibration kit device n short calibration kit device n R signal path if large variation in both F RF and ERR n A or B input paths if only one term is affected Affected Measurements All reflection measurements high or low return loss are affected by the reflection tracking errors Figure 11 4 Typical EIWERR without and with Cables Error Terms 11 1...

Page 440: ...s dramatically with IF bandwidth a 10 Hz IF bandwidth must be used in order to lower the noise floor beyond the crosstalk specification Using averaging will also reduce the peak to peak noise in this error term Significant System Components w sampler crosstalk Affected Measurements Transmission measurements primarily where the measured signal level is very low are affected by isolation errors For ...

Page 441: ... responses of a through configuration during the calibration procedure SignWant System Components n through cable n cable connectors n test port connectors Affected Measurements All transmission and reflection measurements of a low insertion loss two port devices are most affected by load match errors Transmission measurements of lossy devices are also affected BTRRT sg6277d Figure 11 6 Typical EL...

Page 442: ...e response of the test port cables is included These terms are characterized by measuring the transmission S21 S12 of the through configuration during the error correction procedure Significant System Components n R signal path if both ETF and ETR are bad n A or B input paths n through cable Affected Measurements All transmission measurements are affected by transmission tracking errors sg6278d Fi...

Page 443: ...mitted through the device under test or reflected from its input and then compares it with the incident signal generated by the swept RF source The signals are then applied to a receiver for measurement signal processing and display The HP 8753E vector network analyzer integrates a high resolution synthesized RF source test set and a dual channel three input receiver to measure and display magnitu...

Page 444: ...ntrol circuit lb achieve frequency accuracy and phase measuring capability the analyzer is phase locked to a highly stable crystal oscillator For this purpose a portion of the transmitted signal is routed to the R channel input of the receiver where it is sampled by the phase detection loop and fed back to the source The Source Step Attenuator The 70 dB electro mechanical step attenuator contained...

Page 445: ...rse measurements to be made without changing the connections to the device under test The Receiver Block The receiver block contains three sampler mixers for the R A and B inputs The signals are sampled and down converted to produce a 4 kHz IF intermediate frequency A multiplexer sequentially directs each of the three IF signals to the ADC analog to digital converter where it is converted from an ...

Page 446: ...se assemblies combine to provide digital control for the analyzer Source The source group consists of the A3 source A7 pulse generator All phase lock Al2 reference Al3 fractional N analog and Al4 fractional N digital assemblies The A4 sampler is also related since it is part of the source phase lock loop The source supplies a phase locked RF signal to the device under test Signal Separation The si...

Page 447: ... L O N D U R I N G N O R M A L O P E R A T I O N N O R M A L OPERAlION ON D U R I N G N O R M A L O P E R A T I O N sg6105e Figure 12 2 Power Supply Functional Group Simplified Block Diagram Al5 Preregulator The Al5 preregulator steps down and recti6es the line voltage It provides a fully regulated 5 V digital supply and several preregulated voltages that go to the A8 post regulator assembly for a...

Page 448: ...5V 18V 18V 8V 8V Regulated 6 V Digital Supply The 5 VD supply is regulated by the control circuitry in the Al5 preregulator It goes directly to the motherboard and from there to all assemblies requiring a low noise digital supply A 5 V sense line returns from the motherboard to the Al5 preregulator The 5 V CPU is derived from the 5 VD in the A8 post regulator and goes directly to the A19 graphics ...

Page 449: ...circuit is triggered by overcurrent overvoltage undervoltage or overtemperature It protects the instrument by causing the regulated voltage supplies to be shut down It also sends status messages to the A9 CPU to trigger warning messages on the analyzer display The voltages that are not shut down are the 5 VD and 5 VCPU digital supplies from the preregulator the fan supplies the probe power supplie...

Page 450: ...are not present then 3 3 V will not be sent to the display Probe Power The 18 V and 18 V supplies are post regulated to 15 V and 12 6 V to provide a power source at the front panel for an external RF probe or millimeter modules Digital Control Theory The digital control functional group consists of the following assemblies H Al front panel n A2 front panel processor n A9 CPU n A10 digital IF n Al6...

Page 451: ...L _ I 7 _ IT J sg6107e Pie 12 3 Digital Control Group Simplified Block Diagram Theory of Operation 12 9 ...

Page 452: ...rocessing unit the digital signal processor memory storage and interconnect port interfaces The main CPU is the master controller for the analyzer including the other dedicated microprocessors The memory includes EEPROM DRAM flash ROM SRAM and boot ROM Data from the receiver is serially clocked into the A9 CPU assembly from the A10 digital IF The data taking sequence is triggered either from the A...

Page 453: ...ique to each instrument These constants correct for hardware variations to maintain the highest measurement accuracy The correction constants can be updated by executing the routines in Chapter 3 Adjustments and Correction Constants n Digital Signal Processor The digital signal processor receives the digitized data from the A10 digital IF It computes discrete Fourier transforms to extract the comp...

Page 454: ...lying power to the A27 backlight inverter 5 VCPU and the Al8 display 3 3 v A27 Inverter The AZ7 backlight inverter assembly supplies the ac voltage for the backlight tube in the Al8 display assembly This assembly takes the 5 VCPU and converts it to approximately 380 Vat with 5 ma of current at 40 kHz There are two control lines n Digital ON OFF n Analog Brightness 0 100 intensity is 0 V 0 50 inten...

Page 455: ... the analyzer s source This input analog signal amplitude modulates the RF output signal EXT TRIG This allows connection of an external negative TI L compatible signal that will trigger a measurement sweep The trigger can be set to external through softkey functions TEST SEQ This outputs a TI L signal that can be programmed in a test sequence to be high or low or pulse 10 pseconds high or low at t...

Page 456: ...y fundamental mixing The super low band frequencies 10 kHz to 300 kHz are sent directly from the Al2 reference board to the output of the A3 source assembly This band is not phased locked nor does it use the ALC It is the basic amplified output of the fractional N synthesizer The source functional group consists of the individual assemblies described below A14 A13 Fractional N These two assemblies...

Page 457: ...z cavity oscillator The outputs of these oscillators are mixed to produce the RF output signal In Option 006 30 kHz to 6 GHz the frequencies 3 0 to 6 0 GHz are no longer a mixed product but are the direct output of the YIG Oscillator The signal tracks the stable output of the synthesizer The ALC automatic leveling control circuitry is also in the A3 assembly Source Super Low Band Operation The Sup...

Page 458: ... signal The signal F N LO from the Fractional N VCO goes to the Al2 reference assembly where it is mixed with the 40 MHz VCXO voltage controlled crystal oscillator The resulting signal is the reference to the phase comparator in the All assembly 3 The A3 source is pretuned The source output is fed to the A4 sampler The pretuned DAC in the All phase lock assembly sets the A3 source to a frequency 1...

Page 459: ... lock is achieved at the start frequency the synthesizer starts to sweep This changes the phase lock reference frequency and causes the source to track at a difference frequency 40 MHz below the synthesizer 1 Pigure 12 4 Low Band Operation of the Source Theory of Operation 12 17 ...

Page 460: ...tion IF sltering below 3 MHz At the transition between subsweeps the source is pretuned and then relocks Ihble 12 2 lists the low band subsweep frequencies at the fractional N VCO and the RF output able 12 Z Low Band Subsweep Frequencies t 12 18 TheoryofOperation ...

Page 461: ...e output is fed to the A4 sampler The pretune DAC in the All phase lock assembly sets the A3 source to a first approximation frequency 1 to 6 MHz higher than the start frequency This signal RF OUT goes to the A4 R input sampler mixer assembly 4 The synthesizer sigual and the source signal are combined by the sampler A difference frequency is generated In the A4 sampler the 1st LO signal from the p...

Page 462: ...weep is generated in a series of subsweeps by phase locking the A3 source signal to harmonic multiples of the fractional N VCO The 16 to 31 MHz subsweep is produced by a one half harmonic using the divide by 2 circuit on the Al4 assembly At the transitions between subsweeps the source is prettmed and then relocks lkble 12 3 lists the high band subsweep frequencies from the fractional N VCO and the...

Page 463: ...35 4to 59 2 32 8to 59 4 36 7t o 59 5 33 0 to 60 6 31 5 to 58 8 Jhrmonic source output bfEz l 2 16to31 1 31to 61 2 61to 121 3 121t o 178 6 178t 0206 0 206to536 15 536to 893 27 803t o 1607 51 1607to3ooo option 666 1 37 Ot o 59 5 83 3ooot o4060 4o oto 59 4 101 4060to6ooo Theoryof Operation 12 21 ...

Page 464: ...MHz from the Al2 reference assembly to the All phase lock assembly is divided by 1 2 or 3 See F igure 12 6 The fractional N assemblies are also tuned so that the correct harmonic comb tooth of the 1st LO is 0 500 or 0 333 MHz below the source frequency instead of the usual 1 000 MHz l he analyzer pretunes the A3 source normally then phase locks the 1st IF to the new reference frequency to sweep th...

Page 465: ...does not need to be synthesized The user must enter the source frequency into the analyzer The analyzer s internal source output is not used To accomplish this the phase lock loop is reconnected so that the tuning voltage from the A11 phase lock assembly controls the VCO of theAl4 fractional N assembly and not the A3 source See Figure 12 7 The VCO s output still drives the 1st LO of the samplers a...

Page 466: ...ce to achieve phase lock In external source mode the fractional N VCO prettmes as a closed loop synthesizer referenced to the 100 kHz signal from the Al2 reference assembly Then to acquire or track a switch causes the VCO to be tuned by the All phase lock assembly instead Refer to the Overall Block Diagram at the end of Chapter 4 Start Troubleshooting Here A13 14 FRACTIONAL N 1 30 to 60 MHz IST IF...

Page 467: ...is tuned so that one of its harmonics 1st LO down converts the RF input to the samplers In contrast to external source mode the analyzer does not phase lock at all However the 1st Lo is synthesized The analyzer can function as a swept tuned receiver similar to a spectrum analyzer but the samplers create spurious signals at certain frequencies which limit the accuracy of such measurements A13 14 FR...

Page 468: ...t at test port 2 when making a reverse transmission reflection measurement A24 Transfer Switch The A3 source output power is directed to either the analyzer s test port 1 or test port 2 via a low loss solid state transfer switch With this switch all four S parameters can be updated continuously for example the data obtained from a full 2 port calibration In addition the transfer switch provides te...

Page 469: ...3 A24 TRANSFER SW I TCH F R O N T P A N E L A21 T E S T P O R T rCOUPLER B As CONNECT PORT 1 BiAS CONNECT PORT 2 5962364 Figure 12 9 SimplifM Block Diagram of the Built in Ilest Set Theory of Operation 12 27 ...

Page 470: ...scribed in Digital Control Theory to measure and process input signals into digital information for display on the analyzer Figure 12 10 is a simplijied block diagram of the receiver functional group The A12 reference assembly is also included in the illustration to show how the 2nd LO signal is derived Figure 12 10 Receiver Functional Group Siiplilled Block Diagram 12 28 Theory of Operation ...

Page 471: ... 1 MHz below it This fixed 1MHzsignalisthelstIF RartofthelstIFsignalfromtheRsamplerisfed back to the All phase lock assembly The hnpler Circuit in Low Band or Super Low Band In low band or super low band the sampler diodes are biased continuously on so that the RF input signal passes through them unchanged Thus the 1st IF is identical to the RF output signal from the source 300 kHz to 16 MHz for l...

Page 472: ... Digital IF The three 4 kHz 2nd IF signaIs from the sampler mixer assemblies are input to the A10 digital IF assembly These signals are sampled at a 16 kHz rate A fourth input is the analog bus which can monitor either an external input at the rear panel AUX IN connector or one of 31 internal nodes A multiplexer sequentially directs each of the signals to the ADC analog to digital converter Here t...

Page 473: ...etwork analyzer Replaceable parts include the following n major assemblies fl cables n chassis hardware In general parts of major assemblies are not listed Refer to lhble 13 1 at the back of this chapter to help interpret part descriptions in the replaceable parts lists that follow Replaceable Parts 13 l ...

Page 474: ...fies the faulty assembly 2 Order a replacement assembly Refer to Chapter 13 Replaceable Parts 3 Replace the faulty assembly and determine what adjustments are necessary Refer to Chapter 14 Assembly Replacement and Post Repair Procedures 4 Perform the necessary adjustments Refer to Chapter 3 Adjustments and Correction Constants n 5 Perform the necessary performance tests Refer to Chapter 2 System V...

Page 475: ...er F igure 13 1 illustrates the module exchange procedure Major Assemblies Top and Major Assemblies Bottom list all major assemblies including those that can be replaced on an exchange basis Ordering Information To order a part listed in the replaceable parts lists quote the Hewlett Packard part number indicate the quantity required and address the order to the nearest Hewlett Packard office To or...

Page 476: ... HP B module from HP Refer to the replaceable ports section for part numbers Restored exchange modules are shipped mdividually in boxes like this In addition to the circuit module the box contains Exchange assembly failure repor Return address label Open box carefully it will be used to return defective module to HP Complete failure report Place it and defective module i n b o x B e s u r e t o r ...

Page 477: ... the following categories n Major Assemblies Top w Major Assemblies Bottom n Cables Top n Cables Bottom n Cables Front n Cables Rear n Cables Source n Front Panel Outside n Front Panel Inside n Rear Panel n Rear Panel Option lD5 n Hardware Top n Hardware Bottom n Hardware kont n Hardware Test Set Deck n Hardware Disk Drive Support n Hardware Memory Deck n Hardware Preregulator n Chassis Parts Outs...

Page 478: ...xCIiANffE 0876M3ooo4 A6 08753 60169 1 ASSY SAbfPLER A REBUIUI EXCHANGFk 08763 60169 A6 08763 60160 1 ASSY SAbXPLER B RRBUJIT RXCIiANGEz 0876 60160 A7 08763 60164 1 RD AWY PLJISE QENERAlOB A7 0876 69164 1 BDASSY PUISE GRNERAlOR RERuR3 EKCHANGE A8 087 6osM 1 BD ASSY m RBGIJMlOR A10 087 6ooo6 1 BD ASSY DIMIXL IF All 0876 60162 1 BDASSY PHASEILXK Al2 08763 00367 1 BDASSY RBFERKNCE AlS 0876s 60013 1 BD...

Page 479: ...Major Assemblies hp A10 A8 All A12 A15 A20 A4 sg654e Al3 Al4 Replaceable Parts 13 7 ...

Page 480: ...1 ASBY TEsTPcBTcouPLER A21 076 60874008 1 ASSY TWT PCBTCOUPLER BFiBUIl2 EXCBANffE A 22 6087 7007 1 ASSY TEST FCRT COUFLEE A22 60874007 1 AMY TEST Par COUPLER BEBlJIUr EXCHANGE A22 076 6087 7008 1 AWY TEwFQKrcaJPLEu A22 076 60874008 1 ASSY TEST PCBT COUFLEFl BEBtllIMXCHANGE Ass 087 60146 1 BDASY LED FRONTPANEL As4 50867630 1 AWY TRAN8FEB8wlTcFl A24 608m36sQ 1 AMY TRANSFEB SWllXX EBUII SEXCBANGE A26...

Page 481: ...Major Assemblies Bottom CPU Fan A24 Ai A23 A21 A9BTl sg6126e Replaceable Parts 13 8 ...

Page 482: ...oax Cable SR 8R 8R SB F F F F F F F F F SR F 148 348 QQ 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SOUECE A88Y ASW4 to TBANSFER SWI RX A24 Fp It CBANNEL IN to SAMPLEB B A4 TMTFORT 1 COUPLER A21 to SAI LEIt A AS TEST PORT 2 COUPLER A22 to SAMPLEBB A6 MMFLER R A4 to PUISE GJZNEMlUB A7 SAMPLE A A5 to PUME GENERATUE A7 SAMPLER B A6 to PUISE QENERATOR A7 PHASE ILICK AlLIl to SAMPLEEM A4 FlZAGN D1GlTA L A14J...

Page 483: ...Cables lbp w4 w3 w2 w5 W6 w7 W26 WI2 WI1 WI0 w9 W8 sg656e Replaceable Parts 13 11 ...

Page 484: ...of wires in the bundle aI Ribbon Cable n is the number of wires in the ribbon SR Semi Rigid Coax Cable G 1 1 1 1 1 1 1 1 1 1 1 QRAYWIUSTESFPCET CCUP A TE TSET INTERFACE A26TPl 1w TBAN8FER mvrmH A24 to TEST SF2 INTElPAcE A26JS SOURCE AWY ASW4 to TRANSFER 8WI DX k i CFVPIG AOJ7 to MCTHEKBCARD A17Jll TlmFmT1CCupLw A21 toTRANsFEB A24 TmT POET 2 CouPm A22 to TRANSFER SwrIcH A24 LED A23Jl to TmT SFX IIw...

Page 485: ...Cables Bottom W38 w32 w33 wzo A137 I I A22kl i l l AilWl Replaceable Parts 13 13 ...

Page 486: ...ORT 2 CXWF LEB A22 to SAMPLE B A6 w17 SOB 8l20 84 31 1 FPINTEBFACE A2Jl toMUMEBB ABD A17Jl Wl8 SW 08711 6ooS7 1 FTINTEBFACFi A2J4 toFP PBOBEPOWEB WlO SW 08711 6ooS7 1 F P INTERFACE A2JS to FP PROBE POWFiB W22 6B 8120 8408 1 FP INTBBFACB A2J7 to JNmBTEB A27 W2S SlB 8l2M4OO 1 FP INTEBFACX A2J6 to DISPLAY A18 W24 SE 08763 20220 1 SOuBcxASsY AS toFP BcxANNFLOUT W26 SE 087zG20008 1 FF BCHANNELOUT toFP ...

Page 487: ...hbles Front w22 W23 I AIWI RPGIWI sg658e ReplaceableParts 13 15 ...

Page 488: ... to BP XT BEF MOTBEBBOARD A17Jl2 to Rp VGA OUT BF INTERFACE AMJ4 to MOTHERBO ARD A17J6 RF INTERFXCE AMJlO to BP POBT 1 FUSE RP JNTERFACE A16Jll to RP POBT 2 FUSB EtF INTERFACE AMJS to HIQH lLlTY FBBQ BBF A26Jl CFWFIG AQJl to MOTHEF O ABD A17J7 CFTJ PIQ AQJ2 to MOTHEEBO ABD A17J8 nW Wire Bundle A in the number of wires in the bundle nB Ribbon Cable n is the number of wirea in the ribbon F Flexible ...

Page 489: ...Cables Rear W36 w21 i w35 w30 sg6113e ReplaceableParts 13 17 ...

Page 490: ... AsA3 to SCURCE ASSY A3 Asw2 SR 0876 200 1 CAm CSC ASA4 to SCURCE ASSY A3 ASWS SR 0876 520106 1 SCURCE ASSY A3 to AlTENUA ItIR ASA6 A3w4 SR 0876 20111 1 ATIENUAl0R ASA6 to Wl ASWS 1OR 6002 0701 1 AIL ASA2Jl to AlTBNUA ltIR ASA6 s nW Wire Bundle n ia the number of wirea in the bundle nR Rttbon Cable n is the number of wirea in the ribbon SR Semi R id Coax Cable 13 18 Replaceable Parts ...

Page 491: ...Cables Source A3A4Wl I A3W3 A3W4 BACK FRONT sg662e Replaceable Parts 13 l 9 ...

Page 492: ...R PRONT PANEL 03763 30170 1 ovERLAY LOWE61 PRONT PANEL 03763aon24 1 FPREPAlRKlTsTDl 037 go926 1 F PREPADZKIT 0761 1610 0033 1 GRouND Porn 206o ooo6 1 NtJTHExlAa2 2190 0067 1 wA3HERLK 266ID 0376340016 1 LINEBUTION 03763 30211 1 OVERLAY UPPER FRONT PANEL 1 Comes with gasket upper and lower overlays 13 20 Rsplawable Parts ...

Page 493: ...Front Panel Assembly Outside sg663e ReplaceablsParts 13 21 ...

Page 494: ... 2 1 1 1 1 1 1 1 DISPLAY HOLD DOWN DISPLAY LAMP I4mREPLAcmfENTAssY DISPLAYGLASS GROUNDlNG C IF S FILLEBPLATEl FRCNT PANEL RR3 INCLUDES CABLE AND HARDWARE RPG KNOB FLUBBEB KFXPAD SCBBW SM 3 0 6CWPNTX SCREWSMM 3 014cWPNTx CABLE CLG SCREWSrdM 3 08cwPNTx CABLE ASSY PBOBE POWEFt NUT HEX3 E32 PLATE PBOBE POWEB SCREW TAFTING BD ASSY F RONT PANEL BDABSY FXONT PANEL INTEBF ACE All OA2 ASSY WVERlER A2TOA17 ...

Page 495: ...Front Panel Assembly Inside 4 P l a c e s 4 P l a c e s 2 P l a c e s WI7 sg6122e Replaceable Partr 13 23 ...

Page 496: ...o oo27 QQ 1 2 1 1 1 4 2 2 4 4 4 10 1 1 1 1 8 8 1 2 2 2 Ikx3cripison BP INTEBFACE A16J4 TO MB A17J6 W27 FUSEIFARNESGASSEMBIX BD ASSY BEAB PANEL INTEBFACE A16 AWY EXTERNAL IimJmENcE CABLE W13 ASSY FAN FASIENEBCONNBPLOCK WASHERLK l MlDlO NUT STDF 327L 632 F CONNBPLOCK SCREWSbfM35Xl6 CWFWTX FLATWASHER scREwsMM3 ox8 CWFNTX REABPANELSHEETMFXAL FANGUABD HOLE PLUG EIOLF PLUG WASHERLK 472ID NUT BEX 15 32 3...

Page 497: ...Rear Panel Assembly 8 Places 9 15 0 13 es P A R T O F F A N sg665e ReplaceableParts 13 25 ...

Page 498: ...0516 0430 7 lD6 08763 00078 8 6otw0027 A26 ID6 08763 60168 W30 lD6 81206468 Description 1 ADAFTER CQAX 1 ScBFm MAcHINEM3 ox1ocW PN TX 1 WASHEEF LAT 606IDNY 1 WA8HERMCK 606ID 1 NUT SPEc 1 228 1 SCBEW MACHINEM OX CW PN TX 1 BRACKET OSCBD 2 HOIXPLUGS 1 BDASSY EIGHtYFABILlTYF BJCQREiF 1 EPINTEBFACE AlBJS to GE FBEQREF A26Jl 13 26 ReplaceableParts ...

Page 499: ...Rear Panel Assembly Option lD5 sg666e Replawable Parts 13 27 ...

Page 500: ...0516 1400 cm Descriptiox 2 SCBEW M3 OxlOCW FLTX 1 STABlLrzER PCBOARD 1 STABlLlzER CAP 1 SCBEW bfACHNEM3 Ox16PGF LTX 2 SCBEW MACBJNE d3 5x8CW PN TX 1 AIRFIDWCOVER 2 3CBEW MACHINEIK3 ox1oCW PN TX 2 SCREW MACHINE M3 6xlOCW PN TX 2 SCREW MACBINEM OXI CW PN TX 1 GSF COVER 1 BBACKFXdOUFtCE SCUBCESl BAP 6 SCREW bs3 ox1oCW m TX 16 SCIGW b MBlNE Bi3 OxlOCW PN TX 1 CLlPPlJWER GROUND 3 3CBEWXACHINEM3 5x8pOF ...

Page 501: ...Hardware lbp 2 P l a c e s 2 Places 4 P l a c e s 6 P l a c e s 12 Places 1 15 P l a c e s sg6111e Replaceable Parts 13 29 ...

Page 502: ...1400 0516 0375 05X 0468 etJr Dwcription 4 3CREw IUCHINEM3 6x8CW PN Tx 8 SCRFM MACHINE M3 0 6 CW F N TX 2 3CRJSW MACHINEIK OXZ CW PN TX 5 SCREW MACHINEM OX CW PN TX 3 SCREW MACHINE M3 6x8PcwLTx 8 3CREW MACHINEM3 Ox16CW PN TX 4 8CREW MACHINEM3 Oxl6CW PN TX 1330 Replawable Parts ...

Page 503: ... L P l a c e s 3 Places 6 2 PLacesI x 5 3 Places 3 P l a c e s sgbb0e Replaceable Parts 13 3 1 ...

Page 504: ...Front Ref option HP Qw Desdptioll Ddg Nnmber 1 06180665 1 SMM 3 0x14 CWFNTX 2 03763 00137 1 BRACKEl CABLERJPPCRl 3 1260 1251 2 ADAFTERFEMALE SMA 4 0616 1946 1 SCRJ X MAcEIINEM3 Ox6F GFLTx 1332 Replaceable Parts ...

Page 505: ...Hardware Front sg669e I2 P l a c e s Replaceable Parts 1333 ...

Page 506: ... 1046 0516 0376 0616 0430 0616 0667 0616 0430 G 8 8 8 1 1 2 1 2 5 Description SHOULDER SCREW GUIDE WASHER FXESURESFRING CHAsslEmsET S C R E W M3 Ox 6 FGFTrTX SCREW MACHlNE I 3 0x 16 CW F N TX SCREW M3 0 6 CW FN TX SCREW MACHINE 43 0x26 CW PN TX SCXEW MACHINE M3 Ox 6 CW FN TX 13 34 Replaceable Parts ...

Page 507: ...Hardware l t Set Deck 5 P l a c e s 8 P l a c e s I A 2 P l a c e s sg670e Replaceable Partr 13 35 ...

Page 508: ... C R E W S M 3 0x10 CWPNTX 1 Your analyzer may use either pin 08720 00021 or p n 08753 00152 Analyzers manufactured prior to February 1999 use p n 0872040021 kuxlyzers manufactured after February 1900 or that have been repaired or upgraded with Service Kit p n 08720 40190 use p n 08753 40152 Contact Hewlett Packard if you need help identifying replacement parts for your analyzer 13 36 Replaceable ...

Page 509: ...Hardware Disk Drive Support 4 P l a c e s Q G 4 P l a c e s Replaceable Parts 13 37 ...

Page 510: ...OptlOll lIPF8l t Qm De8criptlom Dd3 Number 1 0515 0468 4 3cBEw MACHINE M2 6xSCW PIGTX 2 0616 0433 2 GCREW MACHINE WLOX 6 cw PN TX 8 0616 0676 1 Ecmzw m bB ox14cw PN TX 4 08763 00128 1 DECJGMEtdORY 0 Places 1338 Replaceable Parts ...

Page 511: ...Replaceable Partr 1339 ...

Page 512: ...30 1 FUSE 3A 260V NON TIblF DELAY CSAAJL 1 21104666 1 FUSE 3 16A 260V NON TIME DELAY IEC 2 08i 63 00066 1 BRACKFFF PBEBEGULATOR 3 0515 1400 2 SCREW MACHINE M 6x8CW FLTX Al6 0876s 6ooo8 1 PBEBEGULAlXIR ASSY Al6 037 6ooo3 1 PlumEGuLAToR AWY imBLJm EXCHANQE 1340 ReplaceableParts ...

Page 513: ...Hardware Preregulator Al5 IL sg673e ReplaceableParts 1341 ...

Page 514: ...041 0187 2 BBABCAP SIDESTBAP 6 06181384 4 SCREW SMM 5 0 10 PCFIZ X 7 0872O OOOS1 2 SIDEGTRAP 8 0872 OOOSO 2 COVEIMIDE 0 6041 0186 2 FBONTCAP SIDESTBAP 10 08720 00070 2 COVEE B yIToM 11 1460 1345 2 FaoTELEvAmR 12 6041 0167 4 FQOT 13 087 80066 1 LABELzCAUTIONWABNINQ 14 OS76HO174 1 LABELzUXA lTONDIAGBA d 16 0876S 40016 1 LINEBUTlDN 16 6180 8600 1 MYLARlJwuLAmR 1342 ReplaceableParts ...

Page 515: ...Chassis parts Outside 4 Places 4 Places Underside 0 P 14 5 2 Places 6 2 4 Places A 2 Places A CT 2 Plac Places ES 4 Places sQ57Le Replaceable Parts 1343 ...

Page 516: ...1460 1673 0872o ooo77 0515 1400 0876 60270 etJr 1 1 1 16 1 1 1 1 1 1 1 Part of CABDCAGJVMOTEDZRasaembly item S Demxiption FRONTPANELFRAME REARFRAME AssY cARDcAQ oTHER scREwaMM4 ox7PcFIxx BCREWMS Ox6CWPNTX lNslJLAmR smli SPRINGEXl ENSION 13SOD SWllVHEOD 3MMS 6x8PCFIXX BDM MOTHERBOARD 1 1344 ReplaceableParts ...

Page 517: ...Chassis Parts Inside 16 Places sg675e ReplaceableParts 1345 ...

Page 518: ...RKNCEGUIDE 087 SoSed HPS76SEHPRASICPROGRAMMINC3RXAMPLMtXlIDE oS76mo413 HpS763EUsEB S E ndudes erena 087 SOS67 HPS76SEINSTALhWO N QUICKSlARTWJIDE oS76HoS6o HPS76SESY6I EM VERlFICATIONANDPERFORMANCRTEGIs oS76moSe4 BpS753EO ONO11 8ETi tkef oS76S 90370 EPS76SEEF lBPlW3 RAMMINQANDmMMAND REFERRNCRCXJIDE 0876 eoS66 HPS76SEEPRASICPROGRAMMIN EXAWLE5WIDE 08753 90418 IIpS763EOpTIONO11U SQuIDE Cndudas llBT6s ...

Page 519: ...YO 26xO 27 FUSE4A E SVNON TMEDELAYO 26xO 27 HP IBcablea HF lB CABLE lM 3 3 Fr IIp ISCABLE 2BI 6 6FT Hf IB CABLE 4M 13 2 FlyI HP E CABLE 0 6M l 6FI9 ESDsllpplies ADJUSTABLE ANTWSTICWRISFBTRAP 6FTGROUNDlNGCORDfawrktsh ap 2x4Fl ANTMiWICTABLEMATWlTH16FTGROUNDWlRE ANTlsTATIc HEELSTRAPfor wecmam4iuotivf3jioors HPS76SEKEYBOARDOVERLAYfurtx rnuZ k4 gmwd RAcKM0uNTKlTwlTH0uTIiANDLEs RACKMOUNTKlTWlTHlLUUDLES ...

Page 520: ...lgaheriz hexagonal HP HewlettZaclcard HP IB Hewlett Packard interface bun Hx hexrecess mcrews ID inside diameter IF intermediate frequency I o input output llghbemitting diode M metem M metricha vare megahertz mm millimetem MON monitor NOM nominal NY nylon OD outside diameter opt optaon wcillator PN panhead PC patchlock acrews PC printedciEuit PIff peripheral interface group PN panhead Bcrewa refe...

Page 521: ...ains procedures for removing and replacing the major assemblies of the HP 8753E network analyzer A table showing the corresponding post repair procedures for each replaced assembly is located at the end of this chapter Assembly Replasemeat and Post Repair Procedures 14 l ...

Page 522: ...erformance tests Refer to Chapter 2 System Verification and Performance Tests m Warning These servicing instructions are for use by qualmed personnel only lb avoid electrical shock do not perform any servicing unless you are qualified to do so Warning The opening of covers or removal of parts is likely to expose dangerous voltages D SCOMCC the instrument from all voltage sources while it is being ...

Page 523: ...ar Panel Assembly w Rear Panel Interface Board Assembly Al6 N A3 Source Assembly n A4 A5 A6 Samplers and A7 Pulse Generator n AS AlO All A12 A13 Al4 Card Cage Boards n A9 CPU PIG Board n A9BTl Battery w Al5 Preregulator n Al7 Motherboard Assembly n A19 Graphics Processor n A20 Disk Drive w A21 A22 Test Port Couplers n A23 LED Board w A24 Transfer Switch n A25 Test Set Interface n A26 High Stabilit...

Page 524: ...A 250 VAC The use of other fuses or materials is prohibited 1 Disconnect the power cord 2 Use a small slot screwdriver to pry open the fuse holder 3 Replace the failed fuse with a 3 AF 250 V F fuse See Hardware Preregulator in Chapter 13 to find the part number Replacement 1 Simply replace the fuse holder 144 Assembly Replaoement and Post Repair Procedures ...

Page 525: ...Line Fuse F U S E I N U S E I N S E R T S C R E W D R I V E R PRY OPEN qg652d Assembly Replacement and Post Repair Procedures 14 6 ...

Page 526: ...ng the side covers 1 Remove the top cover 2 Remove the lower rear foot item 4 that corresponds to the side cover you want to remove by loosening the attaching screw item 5 3 Remove the handle assembly item 6 by loosening the attaching screws item 7 4 Slide cover off Removing the bottom cover 1 Remove both lower rear feet item 4 by loosening the attaching screws item 5 2 Loosen the bottom cover scr...

Page 527: ...Covers sg677e Assambly Replacement and Post Repair Procedures 14 7 ...

Page 528: ...the line button item 6 5 Remove the trim strip item 3 from the top edge of the front frame by prying under the strip with a small slot screwdriver 6 Remove the six screws item 4 from the top and bottom edges of the frame 7 Slide the front panel over the test port connectors 8 Disconnect the ribbon cable item 5 The front panel is now free from the mstrument Replacement 1 Reverse the order of the re...

Page 529: ...Front Pctnel Assembly Asssmbly Replacement and Post Repair Procedures 14 9 ...

Page 530: ...ulling up on the comers of the connector base This will release the cable for easy removal Damage may occxr to the w n r f this step is not followed H Disconnect item 7 by sliding the ribbon cable away from its cable clamp 3 Remove the four screws item 5 attaching the interface board A2 4 Remove the nine screws from the Al front panel board to access and remove the rubber keypad Replacement 1 Reve...

Page 531: ...Front Panel Keyboard and Interface Assemblies sg680e Assambly Replasement andPost RepairProcedures 14 l1 ...

Page 532: ...move two screws item 8 from the mounting plate 7 to remove the inverter A27 4 Remove the three screws item 1 that attach the mounting plate and display to the front panel 5 Remove the mounting plate and the display A18 from the front panel Note The bottom half of the following ffgure depicts the rear view of the Al8 assembly with the mounting plate removed Use the location of the display lamp cabl...

Page 533: ...e clamp on the A2 assembly and the LCD mounting plate item 7 Caution Be sure that cables are plugged in square and correct Failure to do so will result in serious component damage Caution Do not exceed 3 in lb when replacing the self tapping screws item 8 Assembly Replacement and Post Repair Procedures 14 13 ...

Page 534: ...Display Iamp and hverter Assemblies 3 Places shg6113e 14 14 mmbly Replacement and Post RepairProcedures ...

Page 535: ... item 6 and item 7 that attach the preregulator to the rear panel 6 Remove the six screws item 8 from the rear frame two from the top edge and four from the bottom edge 7 Remove the screw from the pc item 9 board stabiiizer and remove the stabilizer 8 Lift the reference board A12 from its motherboard connector and disconnect the flexible RF cable from its connector on Al2 item 10 9 Identify the wi...

Page 536: ...rd connector pressing down and out on the connector locks Disconnect the wiring harness item 12 from the motherboard Replacement 1 Reverse the order of the removal procedure 3 P l a c e s I4 P l a c e s 4 P l a c e s I I 12 on Top I4 on Bottom 2 P l a c e s sg682e Assembly Replacement and Post Repair Procedures 14 17 ...

Page 537: ...Rear Panel Assembly 14 18 Assembly Replacement and Post Repair Procedures ...

Page 538: ...uency reference jumper item 1 3 Remove the hardware that attaches the seven BNC connectors to the rear panel item 2 4 Remove the hardware that attaches the interface connector to the rear panel item 3 5 Remove the rear panel from the analyzer refer to Rear Panel Assembly in this chapter 6 If the analyzer has option lD5 disconnect the cable item 4 from the rear panel interface board 7 Disconnect th...

Page 539: ...Rear Panel Interface Board Assembly 7 2 Opt ID5 only only sg604e Asssmbly Replasement and Post Repair Procedures 14 21 ...

Page 540: ...ry to disconnect a flexible cable from the B sampler 3 Disconnect the flexible cable W26 4 Disconnect the semirigid cable Wl 5 Lift the two retention clips item 2 at the front and rear of the source assembly to an upright position 6 Move Wl to the side while lifting the source high enough to provide wrench clearance for W24 lb lift the A3 source assembly use the source bracket handle item 3 7 Disc...

Page 541: ...W26 w1 W2L A3 Source Assembly A3 AwnMy Replacclment sad Post Repair Procedures 14 23 ...

Page 542: ...odule to ensure that it is well seated in the motherboard connector 3 Push down the retention clips Reconnect the two semirigid cables Wl and W24 and one flexible cable W26 to the source assembly Note When reconnecting semirigid cables it is recommended that the connections be torqued to 10 in lb 4 Reinstall the source bracket 5 Reconnect the flexible cable to the B sampler 14 24 Assembty Replacem...

Page 543: ...ket item 1 3 Disconnect all cables from the top of the sampler A4 A5 A6 or pulse generator A7 4 Remove the screws from the top of each sampler assembly Extract the assembly from the slot Note lb remove the A A5 or R A4 sampler lhst remove the cable on the B A6 sampler Note If you are removing the pulse generator A7 the grounding clip which rests on top of the assembly will become loose once the fo...

Page 544: ...A4 A5 A6 Samplers and A7 Pulse Generator w5 A4 t o A7 W6 IA5 t o A7 w7 1 I 1 A6 to A7 A7 A l l I4 1 W8 AIIJI t o AL 1 w9 AIIJI t o A7 Assembly Replacement and Post Repair Procedures 14 27 ...

Page 545: ...the removal procedure Note n When reconnecting semirigid cables it is recommended that the connections be torqued to 10 in lb n Be sure to route W8 and W9 as shown No excess wire should be hanging in the All and Al4 board slots Routing the wires in this manner will reduce noise and crosstalk 14 26 Assembly Replacement and Post Repair Procedures ...

Page 546: ...ated at each end of the board Lift the board from the card cage slot just enough to disconnect any flexible cables that may be connected to it 4 Remove the board from the card cage slot Replacement 1 Check the connector pins on the motherboard before reinstallation 2 Reverse the order of the removal procedure Note De sure to route W8 and W9 as shown No excess wire should be hanging in the All and ...

Page 547: ...o m Al2 A15Wl A10 A8 All A12 Al3 WI3 AlZJ3 T O R E A R P A N E L E X T REFi Al4 W2b AIZJL T O A31 WI2 A13J2 T O A12J B WI1 tA14J3 T O A13Jl WI0 A14J2 T O A12Jl 4J T O A71 1 W8 fAllJ1 T O AL sg609e Assembly Replacement and Post Repair Procedures 14 31 ...

Page 548: ... away from the frame as shown in the following 6gure 6 Disconnect the four ribbon cables W20 W35 W36 and W37 from the CPU board AS 7 Remove the three screws item 2 that secure the CPU board A9 to the deck Slide the board towards the front of the instrument so that it disconnects from the three standoffs item 3 8 Lift the board off of the standoffs Replacement 1 Reverse the order of the removal pro...

Page 549: ...A9 CPU Board w37 w20 sg6112e Assembly Replacement and Post Repair Procedures 14 33 ...

Page 550: ...A9 CPU Board I VII c A9 sg690e 14 34 Assembly Replasemeat and Post Repair Procedures ...

Page 551: ... not incinerate or puncture this battery Dispose of the discharged battery in a safe manner DO NOT THROW BAlTERIES AWAY BUT COLLECT AS SMALL CHEMICAL WASTE Replacement 1 Make sure the new battery is inserted into the A9 board with the correct polarity Warning Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type recommended 2 Solder the battery into p...

Page 552: ...A9BTl Battery 0 IIII d I A9 A9BTl sg691e Asssmbly Replacement and Post Repair Procedures 14 37 ...

Page 553: ...15Wl from A J2 and A17J3 4 Remove the preregulator A15 from the frame Replacement 1 Reverse the order of the removal procedure Note n When reinsMing the preregulator A15 make sure the three grommets item 1 on A15Wl are seated in the two slots item 2 on the back side of the preregulator and the slot item 3 in the card cage wall n After reinsMing the preregulator A15 be sure to set the line voltage ...

Page 554: ...Al5 Preregulator A8J2 I b 2 3 Places Al5 A17J3 2 Placed sg692e Assembly Replacement and Post Repair Procedures 1448 ...

Page 555: ...embly refer to Front Panel Assembly in this chapter 3 Remove the rear panel assembly refer to Rear Panel Assembly in this chapter 4 Remove the preregulator refer to A15 Preregulator in this chapter 5 Remove the graphics processor refer to A19 Graphics Processor in this chapter 6 Remove the test set deck item 3 by removing the three screws item 4 from the bottom and four screws item 5 from the side...

Page 556: ...in this chapter 11 Remove the card cage boards refer to A AlO All A12 A13 Al4 Card Cage Boards in this chapter Continue with step 12 to remove the motherboard or step 13 to remove the motherboard card cage assembly 12 To disconnect the motherboard item7 remove the 34 riv screws item 8 Important Do not misplace ang of these screws v sg693e Assembly Replawmeat and Post Repair Procedures 14 41 ...

Page 557: ...ollowing step 13 Referring to the figure on the following page remove the front frame item 1 and rear frame item 6 by removing the attaching screws item 7 At this point only the motherboard card cage assembly should remain This whole assembly is replaceable 1442 Assembly Replacement and Post Repair Procedures ...

Page 558: ...A 17 Motherboard Assembly Replacement 1 Reverse the order of the removal procedure Aswmbly Replacement and Past Repair Procedures 1443 ...

Page 559: ...vers in this chapter and front panel refer to Front Panel Assembly in this chapter 3 Remove the six screws item 1 from the GSP cover item 2 and lift off 4 Swing out the handles item 3 and pull the GSP board item 4 out of the analyzer Replacement 1 Check the connector pins on the motherboard before reinstaktion 2 Reverse the order of the removal procedure 1444 Assembly Replacement and Psi Repair Pr...

Page 560: ...A19 Graphics Processor 6 Plocesl Cc 2 P sg695e Awembly Replacement and Post Repair Procedures 1446 ...

Page 561: ...ides details for this procedure 1 Disconnect the power cord and remove the top bottom and left side covers refer to Covers in this chapter 2 Turn the analyzer over so that the bottom faces up 3 Disconnect the ribbon cable item 1 that connects to the disk drive from its connector on the CPU board 4 Remove the four screws item 2 that secure the disk drive bracket to the side of the analyzer and remo...

Page 562: ...A20 Disk Drive Assembly sg696e Assembly Replacement and Post Repair Procedures 1447 ...

Page 563: ... of the front panel This will allow access to one of the 2 hex screws of the disk drive assembly 7 Aligu the disk drive with the front panel and tighten the three screws that fasten the disk drive to the disk drive bracket Do not over tighten 8 ReCOMeCt the ribbon cable to the CPU board Note Make sure that the CPU connector contacts touch the ribbon cable contact areas the ribbon cable contact are...

Page 564: ...l three screws Reinstall the covers 1 Reinstall the remaining top front panel screw in the left corner 2 Reinstall the trim strip 3 Reinstall the covers If needed refer to Covers in this chapter for help in performing this task Assembly Replacement and Past Repair Prowdures 1449 ...

Page 565: ...re A22Wl 3 Disconnect the two semirigid cables from the coupler assembly For coupler A21 disconnect W3 and W31 For coupler A22 disconnect W4 and W32 4 Remove the four screws washers and pressure springs that secure the coupler to the test set deck Remove the coupler 5 Remove the pressure springs Replacement 1 Reverse the order of the removal procedure Note n If you re instalhng a new coupler the g...

Page 566: ...A21 A22 I t Port Couplers w32 A22Wl w31 w21 AZIWI I3 w3 u l L 1 sg697e Assembly Replacement and Post Repair Procedures 14 51 ...

Page 567: ...ove the bottom cover refer to Covers in this chapter 2 Remove the front panel refer to Front Panel Assembly in this chapter 3 Remove the A22 test port coupler refer to A21 A22 Test Port Couplers in this chapter 4 Disconnect W33 from the LED board A23 5 Remove the screw item 1 from the front of the test set deck 6 Remove the LED board A23 Replacement 1 Reverse the order of the removal procedure 145...

Page 568: ...A23 LED Board III II III Z I II 0 A 3 sg698e Assambly Replacement and Post Repair Procedures 14 53 ...

Page 569: ...efer to Covers in this chapter 2 Disconnect A24Wl from 53 on the test set interface board A25 3 Disconnect the three semirigid cables Wl W31 and W32 from the transfer switch Az4 4 Remove the two screws item 1 that secure the transfer switch Replacement 1 Reverse the order of the removal procedure Note When reconnecting semirigid cables it is recommended that the connections be torqued to 10 in lb ...

Page 570: ...A24 Transfer Switch w32 w31 J3 A2LWl 2 Places sg699e Assembly Replasement and Post Repair Prosedures 14 55 ...

Page 571: ... strap Removal 1 DiscOMeCt the power cord and remove the bottom cover refer to Covers in this chapter 2 Disconnect all cables and wires A21W1 A22W1 W33 and W34 from the test set interface board A25 3 Remove the five screws item 1 that secure the test set interface board Replacement 1 Reverse the order of the removal procedure 14 56 Assembly Rsplasement and Post Repair Procadures ...

Page 572: ...A25 lkst Set Interface 5 Places w34 A24Wl I lb A25 0 IIIIIIlI I I IIA 411 I A22Wl w33 AZIWI sg6100e Assambly Replacement and Post Repair Procedures 14 57 ...

Page 573: ... connector item 1 on the rear panel 4 Remove the screw item 4 that attaches the lD5 assembly to the rear panel 5 Remove the screw item 2 that secures the high stability frequency reference board A26 to the bracket 6 Slide the board out of the bracket Be careful not to lose the plastic spacer washer item 3 that is on the BNC connector as the board is being removed Replacement 1 Reverse the order of...

Page 574: ...A26 High Stability Frequency Reference Option lD5 Assembly 0 OUTSIDE INSIDE w30 sg6101e Assembly Replacement and Post Repair Procedures 14 59 ...

Page 575: ...ear Panel Assembly in this chapter 2 Remove the four screws item 1 that secure the fan and fan cover to the rear panel Replacement 1 Reverse the order of the removal procedure Note The fan should be installed so that the direction of the air Bow is away from the instrument There is an arrow on the fan chassis indicating the air flow direction 14 60 Assembly Replacement and Post Repair Procedures ...

Page 576: ...Bl Fhn Assembly 4 PLACES hg628d Assembly Replacement and Pest Repair Procedures 14 61 ...

Page 577: ...curacy Pretune Default CC l t 46 lkst Port Output Power Accumcy Anal BuscC Ibst46 lbst Port Output Power Range aud Source Pretune CC l t 48 b m RF Output Power CC l t 47 lbst Port Output Input Hanuonics Sampler Maguitude and Phase CC lb 53 Option 002 only Cavity OBciUstor Frequency CC J t 54 Source Spur Avoidance Tracking EEPROM Backup Disk MIAS A6 Samplers A9 Switch Positions Miuimu R Channel Lev...

Page 578: ... Input Frequency Response Cal Kit Default Test 57 Source Pretune CC Ibst 48 RF Output Power Cc Tbst 47 Sampler Maguitude and Phase CC lbt 53 ADCLinearityCC Test62 lF Amplifier Cc lbt 51 Cavity O llator Frequency CC lb 54 EEF ROM Backup Disk LlO Digital IF A9 Switch Positions l t Port Input Noise Ploor Level AnalogBwccW46 Test Port CTc alk Sampler Magnitude and Phase CC lbt 53 System Trace Noise AM...

Page 579: ...play None Ob6ervation of Display lkSW66 SO A19 Graphics System None Observation of Display Processor lkStS69 SO A20 Disk Drive none none A21 l t Port Coupler RF Output Power CC lbst 47 lbtPortcn ratallr Sampler Maguitude and Phase CC l t 53 l t Port Frequency Response A2 2 Test Port Coupler Sampler Magnitude and Phase CC Test 53 Bst Port crosstalk l lkst Port Frequency Response A23BdAssyLED none S...

Page 580: ...ncidental or consequential damages in connection with the furnishing performance or use of this material Certillcation Hewlett Packard Company certihes that this product met its published specifications at the time of shipment from the factory Hewlett Packard further certihes that its calibration measurements are traceable to the United States National Institute of Standards and Rxhnology to the e...

Page 581: ...kard does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specihcations for the product or im...

Page 582: ...2 INTElEON FIELD OPBBATIONB Headqnarters HewlettZackard Company 3496DeerCreekRoad plrlo Alto California USA 94304 1316 416 867 6927 Alwtnliilb Hewlett Packard Aust ia Ltd 31 41 Joseph Street Blackbum Victoria 3130 613 896 2896 HewlettPackard Canada Ltd 17690 South Service Bond Tram CanadaHlghway Kirkland QuebecH9J2x8 Dian KS 4232 JIlppn HewlettGnckardJapan Ltd 91 alo Hachioji lbkyo 192 Japan 81426...

Page 583: ...ewlett Packard for service ship the analyzer to the nearest HP service center for repair including a description of any failed test and any error message Ship the analyzer using the original or comparable antistatic packaging materials 154 Safety and licensing ...

Page 584: ...a procedure which if not correctly performed or adhered to could result in injury or loss of life Do not proceed beyond a warning note until the indicated conditions are fkdly understood and met Instrument Markings A The instruction documentation symbol The product is marked with this symbol when it is necessary for the user to refer to the instructions in the documentation CE The CE mark is a reg...

Page 585: ...socket outlet provided with a protective earth contact Any interruption of the protective conductor inside or outside the instrument is likely to make the instrument dangerous Intentional interruption is prohibited Warning Always use the three prong AC power cord supplied with this product Failure to ensure adequate earth groundiug by not using this cord may cause product damage Before Applying Po...

Page 586: ...ct the instrument from all voltage sources while it is being opened w g Adjustments described in this document may be performed with power supplied to the product while protective covers are removed Energy available at many points may if contacted result in personal injury Warning The power cord is connected to internal capacitors that may remain live for 10 seconds after disco ecting the plug fro...

Page 587: ...Degree 2 per IEC 1010 and 664 respectively Caution VENTILATION REQUIREMENTS When inskUng the product in a cabinet the convection into and out of the product must not be restricted The ambient temperature outside the cabinet must be less than the maximum operating temperature of the product by 4O C for every 100 watts dissipated in the cabinet If the total power dissipated in the cabinet is greater...

Page 588: ...h German Noise Requirements This is to declare that this instrument is in conformance with the German Regulation on Noise Declaration for Machines Laermangabe nach der Maschinenlaernuerordung 3 GSGV Deutschland Acoustic Noise EmissionlGeraeuschemission Operator Position Normal Operation Lpa 70 dB am Arbeitsplatz normaler Betrieb nach DIN 45635 t 19 Safety and licensing 16 9 ...

Page 589: ...n 12 1 A A10 assembly signals required 8 8 A10 check by substitution or signal examination 8 8 A10 digital IF 12 30 digital control 12 10 A10 Digital IF lo 33 All input signals 7 36 All Input S n 7 36 All phase lock 10 34 source 12 15 All phase lock and A3 source check 7 8 All phase lock check 7 35 Al2 digital control signals check 7 23 Al2 reference 10 40 source 12 14 Al2 reference check 7 13 A13...

Page 590: ... 8 A4 sampler mixer 12 29 A4 sampler mixer check 7 6 A5 sampler mixer 12 29 A6 sampler mixer 12 29 A7 pulse generator source 12 15 A7 pulse generator check 7 32 A8 fuses and voltages 5 14 A8 post regulator air flow detector 12 7 display power 12 8 green LEDs 12 7 probe power 12 8 shutdown circuit 12 7 theory of operation 12 7 variable fan circuit 12 7 A8 post regulator test points 5 5 A9 CPU dig i...

Page 591: ...ts 10 3 Adjustment Tests 1913 ADJUSTklENT TESTS 10 5 air flow detector 12 7 ALC ON OFF lo 19 ALL INT 10 7 Alter and Normal switch position adjustment 3 5 amplifier IF adjustment 3 16 analog bus lo 22 ANALOG BUS lo 25 analog bus check of reference frequencies 7 13 analog bus checks YO coil drive 7 11 analog bus codes 10 49 analog bus correction constants adjustment 3 9 analog bus node 1 10 27 analo...

Page 592: ...interface 14 56 A26 high stability frequency reference 1458 A3 source 1422 A4 R sampler 1426 A5 A sampler 14 26 A6 B sampler 1426 A7 pulse generator 1426 A8 post regulator 1430 A9BTl battery 14 36 A9 CPU 14 32 Bl fan 14 60 covers 146 display 14 12 display lamp 1412 front panel 148 front panel interface 14 10 keypad 1410 line fuse 144 rear panel 1416 rear panel interface 14 20 attenuator theory of ...

Page 593: ...justment 3 28 Cav osc Cor 19 13 CC procedures ADC offset test 52 3 17 analog bus test 46 3 9 cavity oscillator frequency test 54 3 28 IF amplifier test 51 3 16 initialize EEPROMs test 58 3 37 option numbers test 56 3 36 retrieve correction constant data from EEPROM backup disk 3 40 RF output power test 47 3 11 sampler magnitude test 53 3 18 serial number test 55 3 34 source default test 44 3 7 sou...

Page 594: ...R LIST 10 6 coax cable 14 codes for analog bus 19 49 coefficients 11 l comb tooth at 3 GHz 7 33 components related to specific error terms 9 3 connection techniques l 5 connector care of l 5 CONTINUE TEST 10 5 controller HP II3 address 4 6 controller troubleshooting 4 8 conventions for symbols 19 48 correction constants ADC offset test 52 3 17 analog bus test 46 3 9 cavity oscillator frequency tes...

Page 595: ...display 12 11 A19 GSP 12 12 Al front panel 12 10 A27 inverter 12 12 A2 front panel processor 12 10 A9 CPU 12 10 digital signal processor 12 11 EEPROM 12 11 main CPU 12 10 main RAM 12 11 theory of operation 12 8 digital control block diagram 6 3 digital control check 4 11 digital control lines observed using L INTCOP as trigger 8 10 digitai control signals A14to A13 check 7 29 digital control sign ...

Page 596: ...justment 3 48 high Iow band transition ac stment 3 52 IF ampiifier correction constants adjustment 3 16 minimum R channel level 2 31 RF output power correction constants adjustment 3 11 sampler magnitude adjustment 3 18 source spur avoidance tracking adjustment 3 58 test port frequency range and accuracy test 2 18 test port input noise floor level 2 37 test port output power accuracy 2 24 test por...

Page 597: ...ER not handshaking 10 58 PRINTER not on not connected wrong addrs lo 58 PROBE POWER SHUT DOWN 19 58 PWR MTR NOT ON CONNECTED OR WRONG ADDRS lo 59 SAVE FAILED INSUFFICIENT MEMORY lo 59 SELF TEST II FAILED lo 59 SOURCE POWER TURNED OFF RESET UNDER POWER MENU lo 59 SWEEP MODE CHANGED TO CW TIME SWEEP lo 60 TEST ABORTED lo 60 TROUBLE CHECK SETUP AND START OVER lo 60 WRONG DISK FORMAT INITIALIZE DISK l...

Page 598: ...l 7 34 FRACN TUNE ON OFT lo 18 F ractionai N Check 7 24 fractional N digital 10 43 fractional N frequency range acijustment 3 45 F ractionai N Frequency Range Adjustment Sequence 3 62 fractional N spur avoidance and F M sideband a stment 3 54 kactionai N Spur Avoidance and F M Sideband Adjustment Sequence 3 62 frequency accuracy adjustment 3 48 frequency counter l 3 10 23 frequency output in SRC t...

Page 599: ...nts 3 28 adjust fractional N frequency range 3 45 adjust fractional N spur avoidance and FM sideband 3 54 adjust frequency accuracy 3 48 adjust hig hAow band transition 3 52 adjust IF ampiifIer correction constants 3 16 adjustment the analyzer 3 l adjust option numbers correction constants 3 36 adjust RF output power correction constants 3 l 1 adjust sampler magnitude correction constants 3 18 adj...

Page 600: ...res 6 19 HP IB mnemonic for service 10 l HP IB service mnemonic defmitions 10 48 HP H3 system check 46 I IF ampiifier correction constants adjustment 3 16 IF GAIN AUTO 10 21 IF GAIN OFF lo 21 IF GAIN ON lo 21 IF Step Cor 19 13 improper calibration technique 9 l Init EEPROM lo 14 INITlALIzATION FAILED lo 53 initiaiizeEEPROMs 3 37 initial observations 43 input noise floor level test 2 37 inputs A an...

Page 601: ...M magnitude of sampler adjustment 3 18 main ADC lo 23 Main DRAM lo 8 MAIN PWR DAC lo 19 Main VRAM lo 15 major assemblies bottom view 13 8 part numbers 13 6 8 rebuilt exchange 13 3 top view 13 6 measurement calibration coefficients 11 l measurement calibration procedure 11 3 mechanical adjustment sequences 3 62 memory INSUFFICIENT MEMORY PWR MTR CAL OFF lo 53 menu analog in lo 24 edit Iist 10 6 pee...

Page 602: ...WER UNLEVELED lo 58 PRINTER error 10 58 PRINTER not handshaking 10 58 PRINTER not on not connected wrong addrs lo 58 PROBE POWER SHUT DOWN lo 58 PWR MTR NOT ON CONNECTED OR WRONG ADDRS lo 59 SAVE FAILED INSUFFICIENT MEMORY lo 59 SELF TEST n FAILED lo 59 SOURCE POWER TURNED OFF RESET UNDER POWER MENU lo 59 SWEEP MODE CHANGED TO CW TIME SWEEP lo 60 TEST ABORTED lo 60 TROUBLE CHECK SETUP AND START OV...

Page 603: ...7 010 time domain l 7 011 receiver configuration l 7 075 75Q impedance l 8 1CM rack mount flange kit without handles l 8 1CP rack mount flange kit with handles l 8 lD5 high stabiity frequency reference l 7 descriptions of 13 48 options available l 7 osciiioscope l 3 oscilloscope check of reference frequencies 7 15 output frequency in SRC tune mode 7 8 overah block diagram 419 OVERLOAD ON INPUT A P...

Page 604: ...IBLE FALSE LOCK lo 57 Post Reg 10 9 post regulator air flow detector 12 7 display power 12 8 green LEDs 12 7 probe power 12 8 shutdown circuit 12 7 theory of operation 12 7 variable fan circuit 12 7 post regulator test point locations 5 5 post repair procedures 3 2 14 62 power accuracy test 2 24 power from source 7 3 POWER LOSS lo 6 power meter HP IB l 3 power meter HP IB address 46 POWER METER IN...

Page 605: ... Disk 3 38 external source mode frequency range 2 21 F ractionai N Frequency Range Adjustment 3 45 Fractional N Spur Avoidance and PM Sideband Adjustment 3 54 Frequency Accuracy Adjustment 3 48 High Low Band Transition Adjustment 3 52 IF AmpIifier Correction Constants Test 51 3 16 Initialize EEPROMs Test 58 3 37 minimum R channel level 2 31 Option Numbers Correction Constant Test 56 3 36 retrieve ...

Page 606: ...chapter 8 l RECORD ON OFF 10 5 red LED on Al5 power supply shutdown 12 6 REP 4 MHz signal check 8 7 reference source 12 14 reference A12 10 40 reference A12 check 7 13 reference frequencies check using analog bus 7 13 reference frequencies check using oscilloscope 7 15 reference signal 4 MHz 7 20 reflection Tracking ERF and ERR 11 13 REP signal At AllTP9 7 17 removing A8 5 14 line fuse 5 7 repair ...

Page 607: ...o 59 search for spurs with a filter 3 30 search for spurs without a filter 3 31 SEGMENT 10 6 selector switch check 5 7 self diagnose softkey 10 7 self test 4 3 SELF TEST n FAILED lo 59 sensor power l 3 sequence check for power up 4 11 sequence contents 3 64 sequence contents for Fractional N Avoidance and FM Sideband Acijustment 3 66 sequence contents for Fractional N Frequency Range Adjustment 3 ...

Page 608: ...on A8 12 7 shutdown circuitry disable 5 16 signal examination for phase lock 7 36 signal separation built in test set 12 26 theory of operation 12 26 signals required for Al0 assembly operation 8 8 SLOPE DAC lo 19 softkeys 10 2 source All phase lock 12 15 Al2 reference 12 14 Al3 frac N analog 12 14 Al4 frac N digital 12 14 A3 source 12 15 A7 pulse generator 12 15 external source mode 12 23 frequen...

Page 609: ...UR TEST ON OFF lo 21 SRAM RAM lo 8 SRC ADJUST DACS lo 19 SRC ADJUST MENU lo 19 SRC TUNE FREQ lo 19 SRC tune mode frequency output 7 8 SRC tune mode phase locked output compared to open loop 7 9 SRC tune mode waveform integrity 7 9 SRC TUNE ON OFF lo 19 stable HI OUT signal in PRACN TUNE mode 7 34 Start Troubleshooting chapter 4 l static control table mat and earth ground wire l 4 status terms for ...

Page 610: ...4 15 lo 17 Test Pat 24 lo 16 Test Pat 5 lo 16 Test Pat 6 lo 16 Test Pat 7 lo 16 Test Pat 8 lo 16 Test Pat 9 lo 16 test patterns 10 3 test port connector inspection 9 3 test port couplers 12 26 test port input noise floor level 2 37 test port output frequency range and accuracy test 2 18 test port output power accuracy 2 24 test port output power range and linearity 2 27 test record types 2 6 tests...

Page 611: ...ion on and off 8 13 tracking for source spur avoidance adjustment 3 58 transfer switch 12 26 transmission tracking ETP and ETR 11 16 TROUBLE CHECK SETUP AND START OVER lo 60 troubleshooting 1st LO signal at sampler mixer 8 14 A10 by substitution or signal examination 8 8 All phase lock 7 35 All phase lock and A3 source check 7 8 Al2 reference 7 13 A13 A14 Fractional N 7 24 Al4 Divide by N Circuit ...

Page 612: ...rtification 2 7 verification kit 7 mm l 3 verification procedures post repair 3 2 14 62 verify calibration kit devices 9 4 voltage indications post regulator 12 7 voltages Al5 preregulator check 5 10 AS 5 14 fan 5 22 front panel probe power 5 19 YO and YO coil drive voltage differences with SOURCE PLL OFT 7 13 voltages for post regulator 5 5 voltmeter l 3 VRAM bank lo 15 VRAIWvideo 10 15 W warrant...

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