Agilent Technologies E4440A Service Manual Download Page 147 | Manualshive

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Chapter 7

147

Troubleshooting the Processor, Power Supply, and Display

A25 Motherboard Description

A25 Motherboard Description

Purpose

. The A25 Motherboard provides the following functions:

• Provides a load to the power supply assembly for the +9 V,

−

5.2 V,

−

15 V, +5.2 V supply lines. This allows a minimum set of PC board

assemblies to be present for power supply operation. See the power
supply troubleshooting section of this manual for a list of minimum
assemblies required. This will help isolate power supply problems.

• Provides reg12 V and

−

12 V supplies to the CPU assembly.

• Provides interconnections between many assemblies.

• Location of the on/off switch.

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Summary of Contents for E4440A

Page 1: ...ntation for the following instruments E4440A 3 Hz 26 5 GHz E4443A 3 Hz 6 7 GHz E4445A 3 Hz 13 2 GHz E4446A 3 Hz 40 GHz E4447A 3 Hz 42 98 GHz E4448A 3 Hz 50 GHz Manufacturing Part Number E4440 90616 Su...

Page 2: ...ard It calls attention to 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 full...

Page 3: ...ns supply before other parts of the instrument The front panel switch is only a standby switch and is not a LINE switch disconnecting device WARNING The opening of covers or removal of parts is likely...

Page 4: ...r use with an instrument will execute its programming instructions when properly installed on that instrument Agilent Technologies does not warrant that the operation of the instrument or software or...

Page 5: ...ive Instrument 47 Check the Instrument Setup 47 Initial Checks 47 Troubleshooting Using Auto Align Tests 49 Quick Cals 52 Isolating the faulty assembly when the displayed amplitude is incorrect or the...

Page 6: ...rence Board 120 Reference Assembly Quick Check 120 Reference Assembly Detailed Troubleshooting 121 A9 Second LO Fan Control Assembly Description 122 Second LO Circuitry 122 Fan Control Circuitry 122 V...

Page 7: ...l IF Assembly Detailed Troubleshooting 142 7 Troubleshooting the Processor Power Supply and Display What You Will Find in This Chapter 146 A25 Motherboard Description 147 A26 CPU Assembly Description...

Page 8: ...icrowave and Millimeter Preselector Bypass 187 Overview of Option 123 in the E4440A E4443A or E4445A 187 Overview of Option 123 in the E4446A E4447A or E4448A 197 Verifying Option 124 Y Axis Video Out...

Page 9: ...E4447A E4448A 336 Complete RF Section 336 RF Assemblies E4446A E4447A E4448A 339 A18 YTO and A19 SBTX RYTHM 341 A21 FELOMA 342 FL1 Low Pass Filter 342 FL2 Band Pass Filter 343 A20 Lowband E4446A E444...

Page 10: ...oval 382 Replacement 384 A26 CPU Assembly 385 Removal 385 Replacement 387 Battery Replacement 387 A26A1 DRAM and A26A2 Flash Boards 388 Removal 388 Replacement 389 Rear Frame 390 Removal 390 Replaceme...

Page 11: ...Output Check 421 Configuring a Replacement CPU Assembly 422 Description 422 Procedure 422 Configuring a Replacement Flash Memory Assembly 425 Description 425 Equipment Required 425 Procedure 426 13 F...

Page 12: ...12 Contents...

Page 13: ...13 1 Overview...

Page 14: ...s chapter provides overview information on your spectrum analyzer The following sections are found in this chapter PSA Overview page 15 Hardware Option Descriptions page 15 Before Troubleshooting a Fa...

Page 15: ...grate traditional spectrum measurements with advanced vector signal analysis optimizing speed accuracy and dynamic range The Agilent PSA Series spectrum analyzers are readily adaptable to meet changin...

Page 16: ...ption 107 All PSA Series Audio Input for use with Option 223 Measuring Receiver Personality only Option 107 consists of an Audio board and a front panel BNC connector The audio signal path is in addit...

Page 17: ...urement personalities to remain intact so the analyzer will still function The second level is an erase all routine that clears all instrument memory including memory on the CPU assembly resulting in...

Page 18: ...dth reference level and scale settings The video out is always active even when the instrument is in zero span and not being swept Updating early instruments requires changing the A7 Digital IF assemb...

Page 19: ...an damage or destroy electronic components All work on electronic assemblies should be performed at a static safe workstation Figure 1 1 shows an example of a static safe workstation using two types o...

Page 20: ...et includes 3M static control mat 0 6 m 1 2 m 2 ft 4 ft and 4 6 cm 15 ft ground wire The wrist strap and wrist strap cord are not included They must be ordered separately 9300 0980 Wrist strap cord 1...

Page 21: ...will reduce the possibility of ESD damage to components and prevent contamination of exposed plating Test Equipment Usage and ESD Before connecting any coaxial cable to an instrument connector for th...

Page 22: ...List The service kit contains extender boards that enable access to measurement points that cannot otherwise be accessed when the instrument is operational Table 1 2 Agilent Service Kit Agilent part n...

Page 23: ...rd RYTHM SMA Cable Flexible 5062 2662 To extend 2nd LO and Sampler LO semi rigid cables when boards are on extender boards SMB Gray Cable 2 ea 8120 5020 To extend SMB cables MMCX Cable 8120 8866 To me...

Page 24: ...s across a 5 MHz span synchronously 5 MHz to 10 MHz Resolution 0 02 E4433B Option UND E4437B Option UND FW datecode B 02 24 P RF Source 2 Frequency 50 MHz to 1 0 GHz Harmonics 30 dBc 13 dBm Spectral P...

Page 25: ...Option 110 testing A P T Function Generator 1 Frequency 10 Hz to 300 kHz Amplitude Resolution 0 1 mv Harmonic Distortion 35 dBc 33250A 33120A 33120A Option 001 A P Audio Source 1 for Option 107 THD 20...

Page 26: ...TD Will increase measurement uncertainty P Microwave Power Sensor for E4440A E4443A E4445A Frequency Range 50 MHz to 26 5 GHz Amplitude Range 30 to 20 dB Zero Set 50nW Zero Drift 10 nW Measurement Noi...

Page 27: ...34 GHz 1 37 1 34 GHz to 40 GHz 1 61 1 40 GHz to 50 GHz 1 89 1 Input Connector 2 4 mm m 8487D A P Standards Frequency Standard Frequency 10 MHz Accuracy 1 e10 10 Symmetricom 5071A Agilent 5061B 5071A...

Page 28: ...uator 20 dB 3 5 mm m f Accuracy 0 5 dB VSWR DC to 7 1 GHz 1 20 1 8493C Option 020 A P 30 dB Fixed Attenuator 30 dB Accuracy 0 05 dB VSWR 1 05 50 MHz for use with Low Power Sensors 11708A A P Terminati...

Page 29: ...High Frequency Probe Frequency Range 300 kHz to 3 GHz Input Resistance 1 M nominal 85024A T Negative Detector 50 MHz to 26 5 GHz 0 6 dB to 18 GHz 33330C A Bias Adjustment Board E4440 60041 A Cables 3...

Page 30: ...L253 4499 XU N NP P 1 GHz Low Pass Center frequency 1 GHz Rejection at 2 GHz 60 dB 0955 0487 RLC Electronics L 1621 P 1 0001 GHz Notch Center frequency 1 GHz BW 6 MHz Rejection at 13 MHz from CF 50 dB...

Page 31: ...m to 2 4 mm f for E4446A 47A 48A Frequency DC to 18 GHz VSWR 1 08 1 11903D P Type N f to 3 5 mm m Frequency DC to 18 GHz VSWR 1 14 1 1250 1750 A P BNC Tee BNC f m f 1250 0781 A P SMB f to BNC f Frequ...

Page 32: ...Ramp Sweep required for Frequency Response Adjustments c Supported PSG models E8244A E8254A E8257C Option H31 or 540 E8257D E8267C Option H31 or 544 E8267D One sweeper requires Option 1E1 for PSA Opti...

Page 33: ...n Off 0 005 6 Off On On Off 0 005 7 On On On Off 0 005 8 Off Off On On 0 005 9 On Off On On 0 005 10 Off On On On 0 010 11 On On On On 0 010 Nominal Attenuation dB Attenuator Section Maximum Uncertain...

Page 34: ...ard A7 digital IF assembly A8 analog IF assembly A9 2nd LO fan control assembly A10 3rd converter assembly A11 reference assembly A12 Synthesizer assembly A12A1 LO synthesizer board A12A2 sampling osc...

Page 35: ...2 or 140 A32 Wideband Digital IF assembly Option 122 or 140 A33 70 MHz Output assembly Option H70 A34 Unpreselected Mixer Option 123 A35 Unpreselected Mixer Bias Board A36 Microwave or Millimeter Wave...

Page 36: ...is located on the CPU board For more information go to Battery Information on page 152 After an Instrument Repair If any instrument assemblies have been repaired or replaced perform the related adjust...

Page 37: ...lso support on the world wide web The address is http www agilent com find psa FAQs firmware upgrades documentation and other support information can be accessed from this site To obtain servicing inf...

Page 38: ...0 fax 305 269 7599 Australia tel 1 800 629 485 fax 61 3 9210 5947 Asia Call Center Numbers Country Phone Number Fax Number Singapore 1 800 375 8100 65 836 0252 Malaysia 1 800 828 848 1 800 801664 Phil...

Page 39: ...st provides the identification number for each option built into the instrument and the second provides the instrument s serial number The serial number has two parts the prefix two letters and the fi...

Page 40: ...red on the screen or have completed a Performance Test Record or have any other specific data on the performance of the instrument please send a copy of this information with the unit Original Packagi...

Page 41: ...d by electrostatic discharge 5 Use a strong shipping container A double walled corrugated cardboard carton with 159 kg 350 lb bursting strength is adequate The carton must be both large enough and str...

Page 42: ...42 Chapter1 Overview Contacting Agilent Technologies...

Page 43: ...43 2 Overall Troubleshooting...

Page 44: ...ubleshoot a spectrum analyzer It includes procedures for troubleshooting common failures and provides information on isolating problems in the analyzer The following sections are found in this chapter...

Page 45: ...f the instrument Refer to the specifications book for specifications 7 In order to meet specifications the instrument must be aligned Press System Alignments Align All Now The diagnostic tests should...

Page 46: ...and CPU self diagnostics followed by a routine of internal auto alignments These tests evaluate the instrument operation if a problem is detected an error message will be displayed or the rear panel L...

Page 47: ...1 Check the instrument display and fans a If the display is dark and the fans are not running suspect a power supply or CPU problem Refer to Chapter 7 Troubleshooting the Processor Power Supply and Di...

Page 48: ...uence At power on all four LED s turn on for a second The left most LED turns off leaving the other three LED s on for approximately 15 seconds The three LED s go off and the left LED turns on The LED...

Page 49: ...ugh Cal Gains This alignment does a rough preliminary setup of AIF main gain and RF gain to allow other alignments to function before the completion of Align AIF Main Gain and Align RF Gain An absolut...

Page 50: ...ocated on the A8 Analog IF assembly XTAL Prefilter Narrow This alignment is run for narrow XTAL bandwidths BW 20 kHz See description for XTAL Prefilter Wide ADC Autorange The ADC autoranging subsystem...

Page 51: ...or a faulty audio board Wide IF ADC Image Options 122 or 140 The instrument uses the 50 MHz reference signal and compares the outputs of both A D converters on the A31 Wideband Analog IF assembly Int...

Page 52: ...within the CDMA personality for measurements which synchronize to an even second clock This alignment measures the delay of the IF path for the one particular setup used for this CDMA application Tabl...

Page 53: ...int in the signal path Therefore checking the signal level at this point allows you to determine which half of the signal path is faulty Instruments without option B7J require measuring the 2nd IF out...

Page 54: ...problem is also there To do this connect a 5 GHz 25 dBm signal to the PSA input and tune the PSA to 5 GHz If the problem appears in high band also you can assume assemblies COMMON to both paths could...

Page 55: ...ment set up instructions in the upper right hand corner of the block diagram c Measure the input signals and output signals of each circuit assembly between the Front Panel input connector and 3rd Con...

Page 56: ...and measure the 321 4 MHz output signal The signal level should be about 30 dBm If the signal level is correct The signal path between the RF input connector and the 2nd IF Amp on the A10 3rd Convert...

Page 57: ...ference Each section below begins with a list of the keys you will press to access the features in that section Error Messages Press System Show Errors The Show Errors key displays the 11 most recent...

Page 58: ...ints since additional corrections must be made for the optional Preamp and the Digital Demod Hardware states The Variable Gain circuit also sets the level of the internal 50 MHz calibrator The System...

Page 59: ...ease approximately 40 50 dB If it doesn t the first mixer or LO Null circuit might be defective Noise Source This key appears only if the Front End Driver assembly contains the 28V switch Instruments...

Page 60: ...but not range down Allows the ADC range to automatically change to limit ADC gain to prevent overdriving the ADC The ADC range cannot automatically change to allow more ADC gain Auto Peak Lock Locks...

Page 61: ...single loop narrow mode If the span is 2 MHz to 10 MHz the instrument is set to Single Narrow Single Wide means the synthesizer is in single loop wide mode If the span is 11 MHz the instrument is set...

Page 62: ...lignment routine is the same as if you pressed the Align All Now The instrument will not sweep while the alignments are running After the alignment routine completes the instrument reverts back to the...

Page 63: ...the RF IF and ADC circuitry of the analyzer for amplitude accuracy by activating the Align RF Align IF and Align ADC keys You can also align the current IF flatness and the system gain of the analyze...

Page 64: ...ference out signal on the rear panel of the analyzer User Diagnostics Press System More Diagnostics Front Panel Test The Front Panel Test allows key presses and RPG knob rotations to be displayed on t...

Page 65: ...use many of the performance tests to fail See the Overall Block Diagram in Chapter 9 Table 2 4 lists the assembly or assemblies most likely to cause the failure Multiple probable faulty assemblies are...

Page 66: ...rtion Wide IF But not failing the normal TOI test A31 Wideband Analog IF Chapter 8 Gain Compression Second LO Power Lowband Mixer Bias A20 Lowband A10 3rd Converter A19 RYTHM Chapter 3 Chapter 4 Power...

Page 67: ...requency Response check description of test to determine instrument settings such as Preamp ON Preselector On or OFF SLODA FELOMA YTF Align Attenuator Slope Frequency Response A20 Lowband A19 RYTHM A2...

Page 68: ...ormance Test Failures Input Noise Density Wide IF But not failing the DANL test A31 Wideband Analog IF A10 3rd Converter Chapter 8 Table 2 4 Performance Test Failures Failing Performance Test Adjustme...

Page 69: ...69 3 Troubleshooting the RF Section E4440A E4443A E4445A...

Page 70: ...Each section describes how the assembly works and gives information to help you troubleshoot the assembly Each description covers the purpose of the assembly describes the main components and lists e...

Page 71: ...for frequencies above 3 GHz and Low Band for frequencies below 3 GHz The A19 RYTHM Routing YIG Tuned Harmonic Mixer is where the two major RF paths diverge For the High Band path the signal continues...

Page 72: ...three possible 321 4 MHz IF signals is selected High Band Low Band and 321 4 MHz from an optional 321 4 MHz input The 321 4 MHz is fed to the system variable gain which is used to establish gain at 50...

Page 73: ...Item Description 1 J1 Input Connector 2 A14 Attenuator Switch 3 A15 Attenuator 4 L bracket RF Main 5 A18 YTO 2 9 to 7 GHz Yig Tuned Oscillator 6 A19 RYTHM 7 A20 Low Band Assembly 8 FL1 Low Pass Filter...

Page 74: ...ver the lowband frequency range In bypass mode the coax switches in the electronic attenuator board route the RF signal on through to the Lowband board The electronic attenuator path consists a 40 dB...

Page 75: ...Front End Finding a fault in the RF front end is best done by breaking the path and monitoring the signal level and frequency with another spectrum analyzer The signal levels and frequencies are noted...

Page 76: ...and supplies from the A13 Front End Driver assembly A14 is fed from A13J3 and A15 is fed from A13J4 Ground is on pin 3 and the 25V supply is on pin 10 Viewing from the circuit side of the board the c...

Page 77: ...ection Verify that the attenuators are receiving the correct switching sequences by using the following tables Coupling DC Block Select J3 pin 9 DC Block Bypass J3 pin 4 DC High Low AC Low High Table...

Page 78: ...l control via the PIN Atten line The ALC circuit receives its input from the SLODA s INT Sense line The A13 also provides the RYTHM band and Low Band switching information as well as Gate Bias Some co...

Page 79: ...he PSA to Low Band set the Center Frequency below 2 85 GHz in Zero Span Set the analyzer above 3 GHz for High Band A DVM with a fine probe can be used to reach the connections at the SLODA Connect the...

Page 80: ...rough 4 whose start minimum and stop maximum frequencies are shown in the following table The mixing equations are RYTHM uses the 1 2 and 4th harmonic of the LO The RF is always on the low side of the...

Page 81: ...tching per the above paragraph Try manually peaking the signal by pressing AMPLITUDE Presel Adjust If the signal can be peaked the flatness adjustment may be needed or the A13 is faulty A faulty RYTHM...

Page 82: ...erts the 3 Hz to 3 GHz signal to the 3 9214 GHz first IF The first LO which enters the Lowband assembly from the SLODA ranges from 3 9214 to 6 9214 GHz Following the first mixer is a dual coupler One...

Page 83: ...als up to 3 GHz only First check for a signal at the input A20J1 the First LO at A20J2 and the 2nd LO at A20J5 by referring to the signal conditions given on the overall block diagram The multiplied 2...

Page 84: ...are with ground connection on A13TP16 top of board near fans Option 219 Noise Figure provides a switched 28V via A13J14 to the rear panel to drive a noise source Press System Service enter the passwor...

Page 85: ...Chapter 3 85 Troubleshooting the RF Section E4440A E4443A E4445A RF Section Description E4440A E4443A E4445A Figure 3 8 Front End Driver Assembly E4440A E4443A E4445A...

Page 86: ...eamp path by pressing AMPLITUDE More Int Preamp On listen for a distinctive click and measure the signal levels at the input and output with a spectrum analyzer Also the displayed signal on the PSA sh...

Page 87: ...ow band signal is routed from the RYTHM A switch in the electronic attenuator selects either the bypass path or the attenuation path The output signal is routed to the A20 Low Band assembly Troublesho...

Page 88: ...88 Chapter3 Troubleshooting the RF Section E4440A E4443A E4445A RF Section Description E4440A E4443A E4445A...

Page 89: ...89 4 Troubleshooting the RF Section E4446A E4447A E4448A...

Page 90: ...section describes how the assembly works and gives information to help you troubleshoot the assembly Each description covers the purpose of the assembly describes the main components and lists externa...

Page 91: ...4446A E4447A and E4448A do not have a DC blocking cap in the signal path Therefore the first mixer can easily be damaged if DC is present The attenuated input signal enters the A19 SBTX RYTHM assembly...

Page 92: ...o the Lowband assembly The second mixer down converts the first IF to the 321 4 MHz second IF The second IF is applied as one of the inputs to the A10 Third Converter Figure 4 1 Example of Down Conver...

Page 93: ...enuator 10 dB Switch 3 A15 Input Attenuator 60 dB 4 L bracket RF Main 5 A18 YTO 2 9 to 7 GHz Yig Tuned Oscillator 6 A19 SBTX RYTHM Assembly 7 A20 Low Band Assembly 8 FL1 Low Pass Filter 3 GHz 9 A21 FE...

Page 94: ...e the coax switches in the electronic attenuator board route the RF signal on through to the Lowband board The electronic attenuator path consists a 40 dB 1 dB step solid state attenuator Option 1DS L...

Page 95: ...t End Finding a fault in the RF front end is best done by breaking the path and monitoring the signal level and frequency with another spectrum analyzer The signal levels and frequencies are noted on...

Page 96: ...14 is fed from A13J3 and A15 is fed from A13J4 Ground is on pin 3 and the 25V supply is on pin 10 Viewing from the circuit side of the board the connector pinouts are shown Figure 4 5 Connector Pinout...

Page 97: ...following tables Table 4 1 A15 Settings Attenuation dB 30 dB Select J4 pin 9 30 dB Bypass J4 pin 4 10 dB Select J4 pin 2 10 dB Bypass J4 pin 1 20 dB Select J4 pin 8 20 dB Bypass J4 pin 5 0 High Low Hi...

Page 98: ...d or the RYTHM to the 1st LO Out port and to the A12 LO Synthesizer assembly In frequency bands 5 and 6 the LO frequency is doubled and filtered before being sent to the SBTX The amplitude leveling of...

Page 99: ...26 5 GHz while in zero span Notice the table includes some approximate out of band measurements shown in italics that can be useful if you suspect a port to port isolation problem Verify the Lowband...

Page 100: ...nt 2 near the back of the board and connect the DVM ground lead to TP2 4 Connect the other DVM test lead to one of the test points listed in Table 4 4 5 Assure the A29 assembly is supported well and c...

Page 101: ...gh the SBTX preselector and mixer mm band path The following table lists the frequencies where the switch points occur The RYTHM bands are bands 1 through 4 whose start minimum and stop maximum freque...

Page 102: ...ont End Driver assembly controls the SBTX driver assembly also verify the A13 assembly is not the cause of the problem Signal Path Troubleshooting Refer to the E4446A E4447A E4448A overall block diagr...

Page 103: ...Measure the signal level at the appropriate output port of the SBTX RYTHM or cable Measure the LO input signals at the output ports of A21 FELOMA 4 The SBTX and RYTHM must be replaced as an entire un...

Page 104: ...and assembly is the front end converter for frequencies below 3 GHz and the 2nd converter for input frequencies 26 8 GHz to 50 GHz The Lowband assembly encompasses both the first and second mixers the...

Page 105: ...at 3 6 GHz LO Nulling is the process of reducing the LO feedthrough signal that appears on screen when the instrument is tuned to 0 Hz The on screen LO feedthrough amplitude is typically reduced 30 dB...

Page 106: ...nodes can cause damage The remaining biases are 2nd _LO_PIN and 2nd _LO_ATTEN Since these are currents they cannot be directly measured at the Lowband assembly connector The output of the DAC which co...

Page 107: ...n A13TP16 top of board near fans Option 219 Noise Figure provides a switched 28V via A13J15 to the rear panel to drive a noise source Press System Service enter the password 49 and press Service Noise...

Page 108: ...eamp path by pressing AMPLITUDE More Int Preamp On listen for a distinctive click and measure the signal levels at the input and output with a spectrum analyzer Also the displayed signal on the PSA sh...

Page 109: ...low band signal is routed from the RYTHM A switch in the electronic attenuator selects either the bypass path or the attenuation path The output signal is routed to the A20 Low Band assembly Troublesh...

Page 110: ...110 Chapter4 Troubleshooting the RF Section E4446A E4447A E4448A RF Section Description E4446A E4447A E4448A...

Page 111: ...111 5 Troubleshooting the Synthesizer Section...

Page 112: ...Each section first describes how the assembly works then gives information to help you troubleshoot the assembly Each description explains the purpose of the assembly describes the main components an...

Page 113: ...Description Purpose The A12 synthesizer assembly phase locks the A18 YTO resulting in a very stable low phase noise LO signal The A12 synthesizer assembly consists of sub assemblies A12A1 LO Synthesi...

Page 114: ...Input signal check Measure the sampler output from the A21 LO distribution amplifier Since removing the LO signal will cause a 1st LO unlock and an unstable measurement you must inject a signal into t...

Page 115: ...nder SMA cable between the sampler in cable W24 and J1 Measure the 600 MHz input by connecting the spectrum analyzer and SMA cable to the extender board jack P2 Set the extender board switch in the lo...

Page 116: ...utput signal suspect A12A2 PSA settings Span 100 kHz Measuring Spectrum Analyzer Span 20 kHz Single loop troubleshooting When single loop mode span 2 MHz is bad it will appear that dual loop is also b...

Page 117: ...ly that is extended P1 600 MHz 300 MHz A11 Reference Assembly A10 3rd Converter Assembly P2 600 MHz 300 MHz A12 Synthesizer Assembly A11 Reference Assembly P3 50 MHz Calibrator A10 3rd Converter Assem...

Page 118: ...is switched on when amplitude calibration is performed The 300 MHz signal is used as a second LO for the 3rd Converter assembly and is always active The reference assembly utilizes a phase lock loop...

Page 119: ...If the A11 reference assembly is not receiving the correct reference signal an unlock error message will appear in red text in the annunciator bar on the front panel This state is detected by the A26...

Page 120: ...een Preset key If necessary press System Power On Preset Preset Type and select Factory 2 Assure the instrument is set to internal reference by pressing System Reference and making sure that the Freq...

Page 121: ...oval procedures 2 Place the reference assembly on the extender board and assure the 4 cable W16 600 MHz Out is connected to P3 on the reference assembly 3 Turn the instrument on and perform a factory...

Page 122: ...phase of the 600 MHz signal with the output of the PMYO Fan Control Circuitry Purpose The three fans used to cool the various assemblies in the instrument are controlled through circuitry located on...

Page 123: ...ontrol circuit on the A9 2nd LO Fan Control assembly Refer to A5 Power Supply Assembly Description on page 153 to check the individual supplies If the supplies are within specifications the most proba...

Page 124: ...is not present suspect a defective A9 assembly Refer to Chapter 11 for assembly replacement procedures Verifying Correct Input and Output Levels Disconnect W16 from J1 Measure W16 600 MHz from the A11...

Page 125: ...125 6 Troubleshooting the IF Section...

Page 126: ...ves information to help you troubleshoot the assembly Each description explains the purpose of the assembly describes the main components and lists external connections to the assembly This following...

Page 127: ...and routed to the A14 input attenuator Step Attenuator Provide 30 dB of attenuation available in 2 dB steps System Variable Gain Compensation Circuitry The variable gain circuitry provides flatness co...

Page 128: ...ining Option B7J See Isolating the faulty assembly when the displayed amplitude is incorrect or the instrument fails a gain related Auto Align test on page 53 3rd Mixer Down converts 321 4 MHz to 21 4...

Page 129: ...measure 49 dBm 2 dB Reconnect W17 to J1 Output Level Check 3 Connect the spectrum analyzer to J5 The 21 4 MHz signal should be 30 dBm 2 dB Reconnect W11 to J5 4 Connect the spectrum analyzer to J4 the...

Page 130: ...ccuracy 5 Connect the SMA cable from the RF OUTPUT of the source to the IF INPUT of the analyzer 6 Press Preset on the analyzer Press Factory Preset if it is displayed Set the analyzer by pressing the...

Page 131: ...analyzer to J5 The 21 4 MHz signal should be 30 dBm 2 dB Reconnect W11 to J5 Measure the 300 MHz 3rd LO 3 Connect a spectrum analyzer to P4 on the A11 Reference board to measure the 27 dBm 300 MHz si...

Page 132: ...re 1 of 2 Corrections Apply Corrections No Input Output Input Mixer Input Mixer Ext Ext Mix Band 26 5 40 GHz FREQUENCY 30 GHz SPAN Zero Span BW Avg Res BW 1 kHz 7 Press Peak Search on the analyzer Rec...

Page 133: ...tor performs frequency down conversion to 7 5 MHz triggering provides the power supply switching frequency generator Pre filters LC and XTAL prefilters are used to attenuate the out of band signals th...

Page 134: ...der mixing products from the third LO as well as the 21 4 MHz feed through The 2 MHz wide 7 5 MHz band pass filter provides additional filtering for narrow resolution bandwidths and is used to improve...

Page 135: ...ating triggers Power Supply Switching Reference This circuit provide a 244 kHz switching frequency to the A5 power supply The A5 power supply divides this frequency in half therefore the power supply...

Page 136: ...ent 2 Press Preset on the instrument and tune to 50 MHz by pressing Input Input Port RF Frequency 50 MHz 3 Press Amplitude and set the input attenuation to 0 dB 4 Disconnect the flexible gray cable W1...

Page 137: ...ttings Main Gain Check Under the conditions listed on the overall block diagram CF 50 MHz the DAC that adjusts the AIF Main Gain amplifier is typically set to a DAC value between 90 and 1300 depending...

Page 138: ...nals are routed through the motherboard to the A10 Third Converter The E4440 60048 extender board has test jacks for both of these signals The following waveform was taken using an oscilloscope with a...

Page 139: ...ls using the gain range select rules circuitry performs analog to digital conversion performs dither generation provides video out Option 124 Final IF overload detection 7 5 MHz IF The 7 5 MHz IF come...

Page 140: ...ng the IF Section A7 Digital IF Assembly Descriptions Interconnections to other assemblies A7P1 7 5 MHz in from A8 Analog IF assembly SR_H Sample Rate High and SR_L Sample Rate Low clock signals from...

Page 141: ...A8 analog IF assembly or the instrument will not boot 1 Inject a 25 dBm 50 MHz signal into the RF input of the instrument 2 Press Preset on the instrument and tune to 50 MHz by pressing Input Input Po...

Page 142: ...orrect other items can be checked to verify the A7 digital IF assembly The remaining detailed checks require the digital IF assembly to be placed on an extender board p n E4406 60021 Turn the instrume...

Page 143: ...Chapter 6 143 Troubleshooting the IF Section Verifying the A7 Digital IF Board Figure 6 2 A7 Clock Measurements Options 122 or 140 and 124 E4440 60206...

Page 144: ...144 Chapter6 Troubleshooting the IF Section Verifying the A7 Digital IF Board...

Page 145: ...145 7 Troubleshooting the Processor Power Supply and Display...

Page 146: ...Each section first describes how the assembly works then gives information to help you troubleshoot the assembly Each description explains the purpose of the assembly describes the main components an...

Page 147: ...mbly for the 9 V 5 2 V 15 V 5 2 V supply lines This allows a minimum set of PC board assemblies to be present for power supply operation See the power supply troubleshooting section of this manual for...

Page 148: ...eral I O connections on the rear panel of the instrument Many of these connectors are soldered directly into the CPU board or plug into the CPU These connections include the following SCSI 2 connector...

Page 149: ...o be the cause of the problem suspect the A2 Front Panel Interface or the ribbon cable that connects the motherboard to the A2 Front Panel Interface assembly CPU Assembly Quick Check Following power u...

Page 150: ...oximately 10 seconds All CPU diagnostic LED s turn off after the boot up is complete At the end of the sequence all of the green LEDs should be off If one or more of the green LEDs remains on suspect...

Page 151: ...on the CPU board remain on and the following message displayed on screen CPU0 WARNING Self tests have been disabled as a result of FASTBOOT being enabled To enable self tests use the FASTBOOT command...

Page 152: ...ould be missing Remove the A7 Digital IF assembly and try rebooting The A8 Analog IF assembly must be installed and providing the 30 MHz sample clock before the CPU will boot See page 150 for troubles...

Page 153: ...selects between two voltage ranges 90 to 132 VAC or 195 to 250 VAC A low TTL level on the PS_off_L line turns off the power supply and places it in standby mode In standby mode the front panel standby...

Page 154: ...ument and verify that the green LED on the front panel is lit A lit green LED indicates the power supply has received an ON command and that the 5 2 VDC supply can at least light the LED 3 The front p...

Page 155: ...er to Chapter 11 for removal procedures Use the E4406 60021 extender board to measure the individual power supply voltages Assure the test pins on the board are not bent and touching each other Insert...

Page 156: ...A8 Analog IF assembly Other assemblies to remove include A13 Front End Driver the front end driver supplies voltages to the RF section assemblies and the input attenuators Therefore if the problem goe...

Page 157: ...gital IF board removed from the extender board Check for shorts zero or very low resistance approx 1 If a short or low resistance is measured pull the remaining boards from the instrument in the follo...

Page 158: ...erface Board Description A6 SCSI Interface Board Description Purpose The SCSI board assembly plugs directly into the A26 CPU assembly The SCSI board assembly provides a connector for an external keybo...

Page 159: ...tart and display navigation features and selection of some softkey menus A2 Front Panel Interface Assembly The front panel interface board interprets which key has been pressed and provides voltage su...

Page 160: ...VGA monitor is functioning verify that the front panel ribbon cable W2 is properly plugged into the motherboard 4 If W2 is properly connected suspect cable W5 from the LCD display a defective A2 Fron...

Page 161: ...4 9 Vdc T1 pin 5 input 33 4 mV CN1 pin 3 26 mV T1 pin 6 input 30 Vdc CN1 pin 4 33 mV T1 pin 7 output 60 V p p sinewave 38 kHz CN1 pin 5 33 mV T1 pin 9 output 77 V p p sinewave 38 kHz CN1 pin 6 33 mV T...

Page 162: ...correctly measure the following signals as indicated in Figure 7 3 If all of these signals measure correctly suspect a defective backlight or LCD The backlight is the most probable cause NOTE The P2 c...

Page 163: ...Chapter 7 163 Troubleshooting the Processor Power Supply and Display Isolating a Display Problem Figure 7 3 Verifying HSYNC VSYNC and LCD Clock...

Page 164: ...ock message will appear on screen 10 MHz OUT SWITCHED The 10 MHz out allows you to lock other test equipment to the same frequency reference that is being used by the transmitter tester The 10 MHz out...

Page 165: ...165 8 Hardware Options...

Page 166: ...ware Option Descriptions on page 16 for overviews of Options 122 or 140 123 and 124 See Chapter 3 for information on Option B7J Digital Demod hardware Option 1DS Lowband Preamplifier Option AYZ Extern...

Page 167: ...IF signal chain The frequency range is 20 Hz to 250 kHz Usable amplitude range is 0 1 V rms to 3 V rms The input impedance of the audio input is 100 k ohms The effect of this 100 k ohm input impedance...

Page 168: ...es and signal processing path Connect a function generator to the Audio input on PSA This test assumes a function generator with 50 ohm output impedance which will cause the PSA to measure 2 times the...

Page 169: ...nsation files and control of the mechanical switches that switch the amplifier into and out of the signal path The mechanical switches are stand alone components and not part of the preamplifier or th...

Page 170: ...ion 123 block diagram for signal level troubleshooting Be sure to use the instrument settings listed on the block diagram as a starting point Run Align All Now then turn Auto Align Off This will allow...

Page 171: ...Chapter 8 171 Hardware Options Verifying Option 110 Figure 8 2 Preamplifier Pin Out and Expected Voltage Levels...

Page 172: ...just because the hardware is installed it does not mean it is functional You must view the Show System screen or the licensing screen to determine which options are available NOTE Option 117 Secure Er...

Page 173: ...e size and Compact Flash Size 512MB If the flash card is defective or missing and cannot be read you will see the following All optional measurement personalities will not be available Press Mode and...

Page 174: ...is most likely faulty are included NOTE Press System Show Errors to check the instrument error queue for possible error messages that resulted the last time the instrument performed an internal alignm...

Page 175: ...Analog IF and the A32 Wideband Digital IF assemblies 3 Press Input Output Input Port Amptd Ref 4 Set Center Frequency to 50 MHz The internal 50 MHz 25 dBm calibrator tone should be displayed The noise...

Page 176: ...selects the narrow band or standard IF Path through the A7 Analog IF and A8 Digital IF assemblies The internal 50 MHz 25 dBm calibrator tone should be displayed The noise floor will be less than 70 d...

Page 177: ...he 3rd Converter output frequency will be 322 MHz for spans 36 MHz and 300 MHz for spans 36 MHz If the instrument is taken out of wideband mode by selecting IF Path Narrow the output of the 3rd conver...

Page 178: ...e 80 MHz IF bandwidth for Option 122 or 40 MHz IF bandwidth for Option 140 6 Press Meas Setup Res BW and type in 150kHz You will see a display of the internal comb signal that is generated on the A7 W...

Page 179: ...Converter before entering the A31 wideband analog and A32 digital IF assemblies This is the outer loop test Perform the outer loop test as follows 1 Press Input Output Input Port WB Align f 300 MHz 2...

Page 180: ...is good WB Align signal selected Bad The non wideband signal path narrow IF path functions correctly A10 Third Converter Outer loop test The A31 Wideband Analog IF input connector or cal switch or A31...

Page 181: ...e dither signal is present The following diagnostic routine requires entering the password protected Service menus 1 Press System More More Service 2 Enter the service password 49 and press Enter 3 Se...

Page 182: ...ning dither on and off 12 Press Analog Filter 13 Select Narrow 36 MHz The PSA display now shows the filter response of the 36 MHz filter path in the Wideband Analog IF assembly See Figure 8 7 Figure 8...

Page 183: ...22 or 140 Lowband Filters Figure 8 8 shows FL2 FL3 and associated cables FL2 on Option 122 or 140 units is a 100 MHz BW filter Non Option 122 140 units have 40 MHz BW filters FL3 is added to suppress...

Page 184: ...184 Chapter8 Hardware Options Verifying Option 122 or 140 Wide Bandwidth Digitizer...

Page 185: ...AND IF BLOCK DIAGRAM March 28 2008 ADCA ADCB 40 MHz J600 J300 90 MHz AAF 100 MHz DIST CALIBRATION TP800 2nd IF Aux Input From A10 3rd Converter Wide Band IF Cal Out ToA10 3rd Converter 260 340 MHz WB...

Page 186: ...186 Chapter8 Hardware Options Verifying Option 122 or 140 Wide Bandwidth Digitizer...

Page 187: ...e disadvantage is that without the preselector image signals will appear Functionality In normal instrument operation when operating above 3 05 GHz a preselector precedes the input mixer see Figure 8...

Page 188: ...filter When the unpreselected path is chosen Sw1 and Sw2 are changed to their up position which bypasses the preselection filter When the instrument is operating below 3 05 GHz Band 0 the signal is r...

Page 189: ...MHz IF Out port the 3rd converter calibrator switch Sw3 in figure 1 must be thrown into its down position If Sw3 is in its up position the 321 4 MHz IF is still present on the rear panel but it is cor...

Page 190: ...at the switch will fully latch The blue and brown wires provide the pulse drive to the switch Wire Color Voltage Blue 25 Vdc Steady state Preselector Off to On transition should show a negative going...

Page 191: ...ld have heard the switches click The preselector is now bypassed The 4 GHz signal will still be present however the display may show many other responses This occurs because the preselector filter tha...

Page 192: ...ppear at 13 2 GHz and 19 2 GHz 5 Tune the source and PSA to 10 GHz 15 GHz and 20 GHz and check the signal level The accuracy of the measurement will depend on the source flatness the quality of the in...

Page 193: ...A13 FRONT END DRIVER ATTENUATOR CONTROL 1 N COUNTER 16 BIT DAC DELAY COMP RYTHM BIAS CTRL 32 N 1 2 1 N 32 N 1 2 1 N COUNTER 16 BIT DAC 48 N 1 2 10 kHz 10 kHz TO 3rd CONVERTER VIA MOTHERBOARD YTF TUNE...

Page 194: ...194 Chapter8 Hardware Options Overview and Verification of Option 123 Microwave and Millimeter Preselector Bypass...

Page 195: ...W2 OPTION 123 W8 W47 97 W85 W7 W20 W29 W30 W26 W53 W109 W112 W81 YTF Coil Driver Mixer Control Odd Even IF W87 W84 W83 W88 W86 10 W38 W115 LO 3 7 GHz W31 A13 FRONT END DRIVER ATTENUATOR CONTROL 1 N CO...

Page 196: ...196 Chapter8 Hardware Options Overview and Verification of Option 123 Microwave and Millimeter Preselector Bypass...

Page 197: ...consequences of using this preselector filter are its limited bandwidth amplitude and phase ripple in its passband and amplitude and phase instability due to center frequency drift Option 123 adds th...

Page 198: ...d for the external mixing bands is used for the unpreselected mixer Option AYZ External Mixing is not compatible with Option 123 Since the E4446A E4447A and E4448A instruments contain an additional do...

Page 199: ...Source and PSA to 10 GHz 15 GHz 20 GHz 30 GHz 40 GHz and 50 GHz to determine if any problems exist in other frequency bands The accuracy of the measured amplitude will depend on the source flatness qu...

Page 200: ...is will allow you to remove cables and troubleshoot without having Auto Align run unexpectedly and change your measured results 3 Signal path troubleshooting requires connection to devices with 2 4 mm...

Page 201: ...dB 2 dB 20 dB A21 FREQ EXT LO MULTIPLIER AMP FELOMA 5087 7126 6 14 GHz 13 dBm 14 dBm 3 7 GHz 9 dBm X2 SW1 U1 SBTX YTF 3 9214 GHz 32 dBm 17 LO1 50 W W56 W54 W39 A19 FL1 27 GHz LPF Cable 3 Hz 26 8 GHz...

Page 202: ...202 Chapter8 Hardware Options Overview and Verification of Option 123 Microwave and Millimeter Preselector Bypass...

Page 203: ...it to the PSA screen Figure 8 13 shows the block diagram of the optional A7 Digital IF that supports Option 124 Figure 8 13 Option 124 Procedure 1 Quick check of video out level Connect a voltmeter to...

Page 204: ...level to place the signal on the bottom graticule line The voltmeter should read 0V 9 Notice also that as the signal is moved up and down the screen the voltmeter reading changes 0 1V per graticule di...

Page 205: ...200 mv Div vertical scope setting allows 5 vertical divisions on the oscilloscope to correspond to the 10 division display on the PSA Input 1 Turn on the input 1 M ohms DC Coupling BW limit OFF Probe...

Page 206: ...206 Chapter8 Hardware Options Verifying Option 124 Y Axis Video Out...

Page 207: ...207 9 Block Diagrams...

Page 208: ...2 Descriptions of the signal mnemonics used in the instrument and mnemonic pin locations 3 Overall block diagrams of the Agilent PSA Series Spectrum Analyzers The following sections are found in this...

Page 209: ...data 1 signal from the CPU board to the front panel interface board FP_D2 Front panel bus data 2 signal from the CPU board to the front panel interface board FP_D3 Front panel bus data 3 signal from...

Page 210: ...erboard P15SBY 15 V standby power supply on the motherboard P32 32 V power supply on the motherboard P5 2 5 2 V power supply on the motherboard PROBE_N12 6 Probe power 12 6 V power supply from the fan...

Page 211: ...Chapter 9 211 Block Diagrams Signal Mnemonics Figure 9 1 Graphic Symbols...

Page 212: ...212 Chapter9 Block Diagrams Overall Block Diagrams Overall Block Diagrams...

Page 213: ...z TO 30MHz REAR PANEL 10MHz REF OUT 5dBm P1 P2 LOOP GAIN 100 MHz VCO CPU FRONT END DRIVER LO SYNTH ANALOG IF OPTIONS 1 2 1 5 FRAC N FRAC N Divider X3 50MHz N F 50 MHz CAL TO 3RD CONVERTER 50 MHz CAL E...

Page 214: ...214 Chapter9 Block Diagrams Overall Block Diagrams...

Page 215: ...Y RPG PROBE POWER EMI FILTER ON_LED KBDREV1 KBDREV1 RPG1A PROBE_N12 6 PROBE_P15 12 6V P1 PROBE POWER ACOM 15V KBDREVO KBDREVO RPG1B DCOM J3 100 PIN FP P155BY FROM A25 MOTHERBOARD P3 40 PIN ACOM VCC VD...

Page 216: ...216 Chapter9 Block Diagrams Overall Block Diagrams...

Page 217: ...Agi l ent MOTHERBOARD E4440 60001 se860a...

Page 218: ...218 Chapter9 Block Diagrams Overall Block Diagrams...

Page 219: ...J3 J4 S 1 R A11 REFERENCE BOARD W22 70 W21 90 REAR PANEL EXT REF INPUT 1MHz TO 30MHz REAR PANEL 10MHz REF OUT 5dBm P1 P2 1 R F LOOP GAIN 100 MHz VCO MODULUS CONTROL CPU FRONT END DRIVER LO SYNTH ANALO...

Page 220: ...220 Chapter9 Block Diagrams Overall Block Diagrams...

Page 221: ...221 10 Replaceable Parts Lists and Locations...

Page 222: ...443A E4445A Options 1DS BAB B7J and AYZ page 262 Fig 10 10 Option 122 or 140 RF Cable Locations page 262 Fig 10 11 E4440A E4443A E4445A Option 123 Assemblies and Cable Locations page 264 Fig 10 12 E44...

Page 223: ...d Driver E4440A E4443A E4445A page 290 Fig 10 26 Cable Locations Front End Driver E4446A E4447A E4448A page 291 Fig 10 27 Front Panel Parts page 292 Fig 10 28 Front Panel Shield Hardware page 294 Fig...

Page 224: ...demod hardware Option H70 Adds 70 MHz IF output at the rear panel Option 1DS Adds a 100 kHz 3 GHz preamplifier Option 107 Adds Audio Input Option 110 Adds a 10 MHz 26 5 GHz Preamplifier E4440A E4443A...

Page 225: ...S MY SG 4611 replaces early 2090 0396 display E4440 60445 X X X X X X A1A1 Display Converter Board E4440 63265 X X X X X X A2 Front Panel Interface Includes Inverter Boards cable E4440 63266 X X X X X...

Page 226: ...1 and A12A2 boards plus shields and MMCX cables b E4440 60185 X X X X X X A12A1 LO Synthesizer Bdb E4440 60283 X X X X X X A12A2 Sampling Oscillator Board E4440 60009 X X X X X X A12W1 Cable MMCX coax...

Page 227: ...GHz 5087 7183 X X A19 Refurbished RYTHM 6 7 and 13 2 GHz 5087 6183 X X A19 SBTX RYTHM Assembly 44 GHz 5087 7184 X X A19 Refurbished SBTX RYTHM Assembly 44 GHz 5087 6184 X X A19 SBTX RYTHM Assembly 50...

Page 228: ...nt standoffs E4440 60094 X X X X X X A26BTI Battery Lithium Polycarbon Monofloride 3V 0 16AH Panasonic BR2325 1420 0314 X X X X X X A27 Electronic Attenuator Option B7J E4440 60456 X X X X X X A28 Aud...

Page 229: ...E4440 60459 Opt 110 Opt 110 Opt 110 Opt 110 Opt 123 Opt 110 Opt 123 Opt 110 Opt 123 A39 USB Memory Board cover plate not attached includes memory card Option 111 115 117 E4440 60252 X X X X X X A39A1...

Page 230: ...R Switch 50 GHz top switch Option 110 87222 60015 X X X SW5 Switch Millimeter bottom switch Option 123 87222 60015 X X X SW6 Switch Microwave Option 110 N1811 60005 X X X 50 termination for LO OUT por...

Page 231: ...et Bandpass Filter E4440 00022 X X X X X X Bracket RF Micro E4440 00002 X X X E4446 00001 X X X Bracket RF Attenuators E4440 00017 X X X E4446 00002 X X X Lid A18 YTO E4440 00019 X X X X X X Shield A1...

Page 232: ...her for SMA 2190 0104 X X X X X X Star washer for BNC connectors 2190 0102 X X X X X X Nylon spacer 25 round 4 spacers keep the CPU from bending when vertical boards are inserted 0380 4662 X X X X X X...

Page 233: ...t for RPG M6x0 5 0535 0163 X X X X X X Volume Knob 0370 3230 X X X X X X Plug Hole 0 5D Nylon for BNC hole 6960 0149 X X X X X X Plug Hole 0 25D Nylon for SMA hole 6960 0076 X X X X X X Line Key push...

Page 234: ...1272 X X X X X X Fan Guard 3160 0281 X X X X X X Rivet fan guard mounting 0361 1888 X X X X X X Cable hold down on Midweb 5022 6135 X X X X X X Cable Clamp plastic adhesive backed Option 110 123 1400...

Page 235: ...for A36 amplifier mounting 2190 0112 X X X Bracket Switch Preamp Option 110 E4440 00051 X X X Bracket Unpreselected Mixer Option 110 123 E4440 00062 X X X Bracket Preamp Option 110 E4440 00075 X X X...

Page 236: ...splay converter board for serial prefix US MY SG 4611 and above 8121 1419 X X X X X X W6 Cable flat flex Disk drive to Motherboard 8120 8461 X X X X X X W7 Cable semi rigid with ferrites For standard...

Page 237: ...ble 4 coax 600 MHz from A11 Reference board P3 to A9 2nd LO J1 8120 5022 X X X X X X W17 Cable 10 coax with ferrites A19 RYTHM highband output to A10 3rd Converter J1 E4440 60371 X X X X X X W18 Cable...

Page 238: ...60070 X X X X X X W27 Cable backlight extension for serial prefix US MY SG 4644 and above 8121 1420 X X X X X X W28 Wire harness SLODA control from A13 Front End Driver to A21 SLODA E4440 60067 X X X...

Page 239: ...074 X X X E4446 20037 X X X W38 Cable semi rigid LO signal A21 SLODA to A19 RYTHM E4440 20070 X X X W38 Cable semi rigid LO signal A21 FELOMA to A19 SBTX RYTHM E4446 20030 X X X W39 Cable semi rigid B...

Page 240: ...LOMA LO OUT to W45 Option AYZ and 123 for PSA 26 5 GHz E4446 20035 X X X W47 Cable 97 coax Preselector Tune Out A13 Front End Driver to Rear Panel 8121 0153 X X X X X X W48 Cable semi rigid FL1 Low Pa...

Page 241: ...ar connector E4446 20045 X X X W56 Cable semi rigid FIFA to FL2 Band Pass filter E4446 20046 X X X W57 not assigned W58 Cable ribbon A13 Front End Driver J10 to A30 FIFA E4440 60073 X X X W59 not assi...

Page 242: ...0964 X X X X X X W68 Cable ribbon SBTX Tower Control A29 SBTX Driver to A19 SBTX RYTHM E4446 60008 X X X W69 Cable ribbon 20 pin SBTX Digital Control A29 SBTX Driver to A13 Front End Driver E4446 600...

Page 243: ...id with ferrites Switch 1 bottom switch port 2 to RYTHM input Option 123 E4440 20091 X X X W82 Cable semi rigid Switch 1 bottom switch port 1 to Mixer input Option 123 E4440 20092 X X X W83 Cable semi...

Page 244: ...Option Driver Assy J3 to SW4 top switch Option 110 E4440 60455 X X X W92 Cable ribbon Switch Control Option Driver Assy J8 to SW5 bottom switch Option 123 E4440 60455 X X X W93 Cable coax Unpreselect...

Page 245: ...rigid Switch 4 port 4 to Switch 5 port 1 Option 123 for combination of Option 110 with Option 123 E4446 20081 X X X W102 Cable semi rigid A15 Attenuator out to Switch 4 port 1 Option 110 E4446 20077 X...

Page 246: ...ed and Option 123 is not E4440 20316 X X X W111 Cable semi rigid Switch 6 to Option 123 Switch 1 Center Port Opt 110 with Option 123 E4440 20317 X X X W112 Cable semi rigid Preamp Out from Switch 6 Op...

Page 247: ...5 mm Input Option BAB E4440 20094 X Input Connector Nut 3 5 mm Option BAB 2950 0001 X Input Connector Washer 3 5 mm Option BAB 2190 0016 X J1 Input Connector 2 4 mm 5064 3970 X X X Bracket 2 4 mm RF...

Page 248: ...X Name Plate E4443A E4443 80001 X Name Plate E4445A E4445 80001 X Name Plate E4446A E4446 80001 X Name Plate E4447A E4447 80001 X Name Plate E4448A E4448 80001 X Line Label E4440 80006 X X X X X X Tri...

Page 249: ...ption Agilent Part Number 1 Strap Handle Assembly E4440 60066 2 Bottom foot 5041 9167 3 Screw M4x0 7 25mm LG 0515 1619 4 Rear foot 5041 9611 5 Shield magnetic used inside instrument cover 2 places E44...

Page 250: ...arts Lists and Locations Hardware Figure 10 2 Top Brace Hardware Item Description Agilent Part Number 1 Top Brace E4440 00013 2 Screw M3x0 5 8mm LG Crest Washer Pan Head TORX 0515 0372 3 Screw M3x0 5...

Page 251: ...crew M3x0 5 8mm LG Crest Washer Pan Head TORX 0515 0372 2 Front Frame Assembly see page 292 3 W2 Cable ribbon 100 pin Front Panel E4440 60075 4 W1 Cable 5 coax Front Panel External Trigger to A8 Analo...

Page 252: ...252 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 4 Major Assemblies...

Page 253: ...ixes US MY SG 4611 and above Also Option 122 140 124 E4440 60206 9 A38 Option Driver Assembly Option 110 123 E4440 60459 10 A26 CPU Assembly E4406 60060 11 A31 Wideband Analog IF Assembly Option 122 o...

Page 254: ...254 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 5 RF Section E4440A E4443A E4445A Standard...

Page 255: ...ator 66 dB 33321 60058 4 L bracket RF Main E4440 00001 5 A18 YTO 2 9 to 7 GHz Yig Tuned Oscillator E4440 60023 6 A19 RYTHM 26 5 GHz Routing YIG Tuned Harmonic Mixer 5087 7070 6 A19 RYTHM 6 7 and 13 2...

Page 256: ...256 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 6 YTO Assembly...

Page 257: ...lent Part Number 1 Screw M3 x 0 58 MM long 0515 0372 2 Lid A18 YTO E4440 00019 3 A18 YTO 2 9 to 7 GHz Yig Tuned Oscillator E4440 60023 4 Shield A18 YTO E4440 00018 5 Grommet A18 YTO 2 each 0400 0333 6...

Page 258: ...258 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 7 RF Input Connector E4440A E4443A E4445A...

Page 259: ...m Option BAB 08559 60002 08673 60040 2 W7 Cable semi rigid with ferrites For standard N type RF Input to A14 Attenuator W7 Cable semi rigid For Option BAB 3 5 APC RF Input to A14 Attenuator E4440 200...

Page 260: ...260 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 8 RF Section Cables E4440A E4443A E4445A Standard...

Page 261: ...A10 3rd Converter J2 E4440 60372 W20 W20 Cable 50 coax 50 MHz Cal signal from A10 3rd Converter J7 to A14 Attenuator 8121 0156 W24 W24 Cable semi rigid A21 SLODA to A12 Synthesizer E4440 20082 W35 W35...

Page 262: ...262 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 9 RF Section and Cables E4440A E4443A E4445A Options 1DS BAB B7J and AYZ Figure 10 10 Option 122 or 140 RF Cable Locations...

Page 263: ...r E4440 20099 W45 W45 Cable semi rigid LO OUT from front panel to W46 Option AYZ E4440 20095 W46 W46 Cable semi rigid LO OUT extension cable from A21 SLODA 1st LO OUT to W45 Option AYZ for PSA 26 5 GH...

Page 264: ...apter10 Replaceable Parts Lists and Locations Hardware Figure 10 11 E4440A E4443A E4445A Option 123 Assemblies and Cable Locations Figure 10 12 E4440A E4443A E4445A Option 123 Assemblies and Cable Loc...

Page 265: ...le W88 from SLODA LO Out Option 123 E4440 20093 W84 W84 Cable 1 coax Dual Mixer Out to Switch 2 top switch port 1 Option 123 E4440 60298 W86 W86 Cable 10 coax 3rd Converter J1 to Switch 2 top switch p...

Page 266: ...11 60005 W106 W106 Wire Harness Option Driver P1 to Preamp Option 110 E4446 60076 W109 W109 Cable semi rigid A15 Attenuator to Switch 6 Option 110 or Option 110 with Option 123 E4440 20315 W111 W111 C...

Page 267: ...Chapter 10 267 Replaceable Parts Lists and Locations Hardware...

Page 268: ...268 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 14 RF Section E4446A E4447A E4448A Standard...

Page 269: ...GHz Yig Tuned Oscillator E4440 60023 6 A19 SBTX RYTHM Assembly 44 GHz 5087 7184 6 A19 SBTX RYTHM Assembly 50 GHz 5087 7185 7 A20 Low Band Assembly E4440 60217 8 FL1 Low Pass Filter 3 GHz 0955 0988 9...

Page 270: ...e Parts Lists and Locations Hardware Figure 10 15 Options 110 and 123 E4446A E4447A E4448A NOTE See Chapter 11 Assembly Replacement Procedures on page 305 of this service guide for views of Option 110...

Page 271: ...Assy J8 to SW5 bottom switch Option 123 E4440 60455 W93 W93 Cable coax Unpreselected mixer to Switch 3 coax switch top port Option 123 E4440 60298 W98 W98 Cable semi rigid LO In to Unpreselected Mixer...

Page 272: ...ts Lists and Locations Hardware Figure 10 16 Options 110 and 123 E4446A E4447A E4448A Rear View NOTE See Chapter 11 Assembly Replacement Procedures on page 305 of this service guide for views of Optio...

Page 273: ...Switch 3 coax switch top port Option 123 E4440 60298 W94 W94 Cable coax SW3 coax switch center connector to 3rd Converter Option 123 E4440 60373 W96 W96 Cable ribbon Driver board J9 to coax switch Opt...

Page 274: ...274 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 17 RF Input Connector and Attenuators E4446A E4447A E4448A...

Page 275: ...ble semi rigid For standard 2 4mm RF Input to A14 Attenuator E4446 20020 W8 W8 Cable semi rigid with ferrites A14 attenuator to A15 attenuator E4446 20021 W20 W20 Cable 50 coax 50 MHz Cal signal from...

Page 276: ...276 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 18 RF Section Cable Locations E4446A E4447A E4448A Standard...

Page 277: ...E4446 20022 W34 W34 Cable semi rigid W33 to A19 SBTX RYTHM E4446 20023 W35 W35 Cable semi rigid YTO Output A18 YTO to A21 FELOMA E4446 20033 W36 W36 Cable semi rigid A19 SBTX RYTHM to FL1 Low Pass Fil...

Page 278: ...278 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 19 SBTX Driver Board Ribbon Cable Locations E4446A E4447A E4448A...

Page 279: ...bbon SBTX Tower Control A29 SBTX Driver to A19 SBTX RYTHM E4446 60008 W69 W69 Cable ribbon 20 pin SBTX Digital Control A29 SBTX Driver to A13 Front End Driver E4446 60009 W70 W70 Cable ribbon 14 pin S...

Page 280: ...280 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 20 RF Section Assembly and Cable Locations E4446A E4447A E4448A Options 1DS B7J and AYZ...

Page 281: ...om front panel to W46 Option AYZ E4440 20095 W46 W46 Cable semi rigid LO OUT extension cable from A21 FELOMA LO OUT to W45 Option AYZ and 123 for PSA 26 5 GHz E4446 20035 W48 W48 Cable semi rigid FL1...

Page 282: ...eplaceable Parts Lists and Locations Hardware Figure 10 21 Vertical Board Assembly Cables W44 W18 W17 W12 W1 W10 W15 W14 W13 W11 W10 W24 W19 W20 W11 W16 W22 W21 W16 se832a See Cable Locations Front En...

Page 283: ...16 Cable 4 coax 600 MHz from A11 Reference board P3 to A9 2nd LO J1 8120 5022 W17 W17 Cable 10 coax with ferrites A19 RYTHM highband output to A10 3rd Converter J1 E4440 60371 W18 W18 Cable 7 coax wit...

Page 284: ...284 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 22 Option Driver Board and Cables...

Page 285: ...ch Control Option Driver Assy J8 to SW5 bottom switch Option 123 E4440 60455 W95 W95 Cable ribbon Mixer Bias board control Option Driver Assy J7 to Mixer Bias Board Option 123 E4440 60397 W96 W96 Cabl...

Page 286: ...286 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 23 Option 122 or 140 Assembly and Cable Locations and Option 124 W67 Cable Location...

Page 287: ...65 coax 100 MHz Ref from A11 Reference Assembly to A31 WB Analog IF Option 122 or 140 8121 1007 W62 W62 Cable 95 coax 300 MHz Ref from A11 Reference Assembly P4 to A31 WB Analog IF Option 122 or 140 8...

Page 288: ...288 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 24 Option 107 Audio Input Assembly and Cable Locations...

Page 289: ...gilent Part Number A8 A8 Analog IF Assembly E4440 60256 A37 A37 Audio Digitizer Assembly Option 107 E4440 60264 A39 A39 USB Memory Board cover plate not attached includes memory card Option 111 115 11...

Page 290: ...13 Front End Driver to A21 SLODA E4440 60067 W29 W29 Cable ribbon A13 Front End Driver to A14 Attenuator A E4440 60071 W30 W30 Cable ribbon A13 Front End Driver to A15 Attenuator B E4440 60071 W31 W31...

Page 291: ...W31 Cable ribbon A13 Front End Driver to A20 Lowband Assy E4440 60072 W47 W47 Cable 97 coax Preselector Tune Out A13 Front End Driver to Rear Panel 8121 0153 W49 W49 Cable ribbon Preamp control from A...

Page 292: ...292 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 27 Front Panel Parts...

Page 293: ...460 2580 0510 1055C 8 A3 Keyboard Assembly Key pad not included E4406 60004 9 Keypad E4440 40003 10 Display Bezel Assembly includes left overlay label but does not include nameplate E4440 60081 11 Fro...

Page 294: ...0 Replaceable Parts Lists and Locations Hardware Figure 10 28 Front Panel Shield Hardware Item Description Agilent Part Number 1 Screw M3x0 5 8mm LG Crest Washer Pan Head TORX 0515 0372 2 Front Shield...

Page 295: ...terface to display converter board for serial prefix US MY SG 4611 and above 8121 1419 4 W27 Cable backlight extension for serial prefix US MY SG 4644 and above 8121 1420 5 Display Mount serial prefix...

Page 296: ...ware Figure 10 30 Display Parts Item Description Agilent Part Number 1 Display EMI Filter 1000 1001 2 Display Mount serial prefix US MY SG 4611 and above E4406 40013 3 A1 Flat Panel Display serial pre...

Page 297: ...Replaceable Parts Lists and Locations Hardware Figure 10 31 Disk Drive Parts Item Description Agilent Part Number 1 and 4 Disk Drive Mount E4406 40006 2 A23 Floppy Disk Drive 0950 2782 3 Disk Drive Bo...

Page 298: ...298 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 32 Rear Frame Hardware...

Page 299: ...4 MHz IF OUT from A10 3rd Converter J4 to rear panel 8121 0149 8 W14 Cable 30 coax TRIGGER 2 OUT to A9 2nd LO J11 8121 0153 9 W13 Cable 20 coax TRIGGER 1 OUT to A9 2nd LO J12 8121 0153 10 W12 Cable 6...

Page 300: ...300 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 33 Mid Web Parts Figure 10 34 Fan Guard...

Page 301: ...re 10 33 and Figure 10 34 Item Description Agilent Part Number 1 Screw M3x0 5 8mm LG Crest Washer Pan Head TORX 0515 0372 2 Mid Web E4406 20109 3 B1 B2 or B3 Fan fan wires connector EMI disk E4406 601...

Page 302: ...0 Replaceable Parts Lists and Locations Hardware Figure 10 35 Cable Hold Down Item Description Agilent Part Number 1 Cable hold down on Midweb 5022 6135 2 Screw M3x0 5 8mm LG Crest Washer Pan Head TOR...

Page 303: ...CPU Processor includes standoffs does not include A26A1 DRAM assy or A26A2 Flash Memory assy E4406 60060 4 Standoffs Memory boards 0380 4163 5 Screwlock GPIB 327 x 6 32 0380 0644 6 CPU Plate not repl...

Page 304: ...304 Chapter10 Replaceable Parts Lists and Locations Hardware...

Page 305: ...305 11 Assembly Replacement Procedures...

Page 306: ...FL2 Band Pass Filter page 324 A20 Lowband page 324 A22 Preamplifier page 326 A27 Electronic Attenuator page 326 A36 Preamplifier page 329 RF Section and Assemblies E4446A E4447A E4448A page 336 A18 YT...

Page 307: ...efore Starting Before starting to disassemble the instrument Check that you are familiar with the safety symbols marked on the instrument And read the general safety considerations and the safety note...

Page 308: ...ce verification tests Description Agilent Part Number TORX Hand Driver Size T10 8710 1623 TORX Hand Driver Size T20 8710 1615 Pozidriv screwdriver 1 8710 0899 flat blade screwdriver 0 01 in thick blad...

Page 309: ...sembly 2 A13 Front End Driver Board 9 A38 Option Driver Assembly Option 110 123 3 A12 LO Synthesizer Assembly 10 A26 CPU Assembly 4 A11 Reference Assembly 11 A31 Wideband Analog IF Assembly Option 122...

Page 310: ...from ac power 2 There are two handles on the sides of the instrument that must be taken off Refer to Figure 11 3 Using the T 20 driver loosen the screws that attach each handle 1 Remove the handles 3...

Page 311: ...m Be sure the cover seats into the gasket groove in the front frame 3 Replace the four rear feet to the rear of the instrument Torque to 21 inch pounds 4 Using the T 20 driver replace the handles Torq...

Page 312: ...he instrument outer case Refer to the Instrument Outer Case removal procedure 2 Using the T 10 driver remove the top screws 3 one screw is under the security label and the side screws 2 attaching the...

Page 313: ...assembly that should match up with the alignment hole on the top brace Make sure that no coaxial cables will get pinched underneath the brace 2 Using the T 10 driver replace the top screws first and t...

Page 314: ...ing this replacement procedure Drop the Front Frame 1 Remove the instrument outer case Refer to the Instrument Outer Case removal procedure 2 Refer to Figure 11 5 Using the T 10 driver remove the 7 sc...

Page 315: ...Input BNC connector Take care to not scratch the front dress panel 2 Refer to Figure 11 5 Disconnect the ribbon cable 3 from the A2 front panel interface board Pull the coaxial cable 4 from the front...

Page 316: ...a 9 16 socket Torque to 21 inch pounds 4 Clip the coaxial cable into the two cable clamps positioned on the front frame shield 5 Position the front frame on the deck using the alignment bosses on the...

Page 317: ...ction Refer to the Instrument Outer Case and the Top Brace removal procedures CAUTION Use ESD precautions when performing this replacement procedure Complete RF Section Removal 1 Refer to Figure 11 35...

Page 318: ...making sure that no cables get caught 2 Using the T 10 driver replace the 4 screws Torque to 9 inch pounds 3 Replace the cables to the correct locations Torque the semi rigid cables to 10 inch pounds...

Page 319: ...Chapter 11 319 Assembly Replacement Procedures RF Section E4440A E4443A E4445A Figure 11 7 RF Section Ribbon Cable Locations E4440A E4443A E4445A...

Page 320: ...E4445A Figure 11 8 RF Section Assemblies Standard Item Description Item Description 1 J1 Input Connector Type N 7 A20 Low Band Assembly 2 A14 Attenuator Switch 8 FL1 Low Pass Filter 3 GHz 3 A15 Attenu...

Page 321: ...Chapter 11 321 Assembly Replacement Procedures RF Section E4440A E4443A E4445A Figure 11 9 RF Section Cables Standard...

Page 322: ...to Figure 11 9 Remove the semi rigid cables W9 W35 W36 and W38 2 Remove the ribbon cables attached to the YTO and RYTHM 3 Refer to Figure 11 10 Using the T 10 driver remove the 2 screws 1 Remove the t...

Page 323: ...ction Torque to 9 inch pounds 4 Replace the cables to the correct locations Torque the semi rigid cables to 10 inch pounds 5 Replace the ribbon cables to the YTO and RYTHM A21 SLODA Removal 1 Refer to...

Page 324: ...be removed from the RF section Replacement 1 Place FL2 and bracket into position in the RF section 2 Using the T 10 driver replace the 2 screws that attach the filter to the bracket Torque to 9 inch...

Page 325: ...r 11 325 Assembly Replacement Procedures RF Section E4440A E4443A E4445A RF Section Option Assemblies E4440A E4443A E4445A Figure 11 11 Preamplifier and Electronic Attenuator Assemblies and Cable Loca...

Page 326: ...Electronic Attenuator Removal 1 Refer to Figure 11 11 Remove the semi rigid cables W51 and W52 2 Remove the ribbon cable from the attenuator assembly 3 Refer to Figure 11 10 Using the T 10 driver remo...

Page 327: ...ter 11 327 Assembly Replacement Procedures RF Section E4440A E4443A E4445A Option 110 Assemblies E4440A E4443A E4445A Figure 11 12 Option 110 Assemblies and Cables Figure 11 13 Option Driver Board Cab...

Page 328: ...0 2 Refer to Figure 11 13 Remove ribbon cable W114 and wire harness W106 from the Option driver board 3 Drop the front frame See page 314 for instructions Figure 11 14 Option 110 A36 Preamplifier and...

Page 329: ...m the front frame 3 Remove all the wires from the preamplifier The A36 Preamplifier can now be removed from the bracket by removing the four screws from the back of the bracket that attach the preampl...

Page 330: ...Chapter11 Assembly Replacement Procedures RF Section E4440A E4443A E4445A Option 123 Assemblies Figure 11 16 Option 123 Assembly and Cable Locations Figure 11 17 Option 123 Assembly and Cable Locatio...

Page 331: ...9107 GHz OUT port Install them on the replacement mixer Replacement 1 Attach the Dual Mixer to the end of the switch bracket using two of the screws as shown in Figure 11 18 Before inserting the top...

Page 332: ...ires from all top switch solder on terminals When removing the black wires avoid damaging the wires since there is little service length The colored wires usually have extra length and you may wish to...

Page 333: ...ffs over the bottom switch mounting holes Position the replacement top switch with the label up and install the mounting screws 2 Reconnect W84 W86 and W87 by matching the cable information bands to t...

Page 334: ...side Figure 11 20 Bottom Switch Cables 5 Refer to Figure 11 16 and Figure 11 20 Remove cable W82 from the dual mixer and port 1 of the bottom switch In order to completely remove the cable you will ne...

Page 335: ...s Slightly tighten the screw close to the front of the instrument Leave the screw close to the fan resting on the switch bracket but with no threads engaged 4 Rotate both switches toward the front of...

Page 336: ...Removal 1 Refer to Figure 11 35 on page 358 Loosen but don t remove the semi rigid W9 cable at the attenuator 2 Refer to Figure 11 21 Remove the cable hold down 3 by removing the one screw 3 Remove th...

Page 337: ...Chapter 11 337 Assembly Replacement Procedures RF Section E4446A E4447A E4448A Figure 11 21 RF Section Removal...

Page 338: ...T 10 driver replace the 4 screws Torque to 9 inch pounds 3 Replace the cables to the correct locations Torque the semi rigid cables to 10 inch pounds including the W9 cable at the input attenuator 4 R...

Page 339: ...n Assemblies Standard Item Description Item Description 1 RF Input Connector 8 FL 1 Low Pass Filter 3 GHz 2 A14 Attenuator Switch 9 A21 FELOMA Freq Extended LO Multiplying Amp 3 A15 Attenuator 10 FL 2...

Page 340: ...340 Chapter11 Assembly Replacement Procedures RF Section E4446A E4447A E4448A Figure 11 24 RF Section Cables Standard...

Page 341: ...Figure 11 24 Remove the semi rigid cables W33 W35 W36 and W38 2 Remove the ribbon cables attached to the YTO and SBTX RYTHM 3 Refer to Figure 11 25 Using the T 10 driver remove the 2 screws 1 Remove t...

Page 342: ...nds 4 Replace the cables to the correct locations Torque the semi rigid cables to 10 inch pounds 5 Replace the ribbon cables to the YTO and SBTX RYTHM A21 FELOMA Removal 1 Refer to Figure 11 24 Remove...

Page 343: ...o position in the RF section 2 Using the T 10 driver replace the 2 screws that attach the filter to the bracket Torque to 9 inch pounds 3 Replace the semi rigid cables to the correct locations Torque...

Page 344: ...nd assembly This allows cable W18 to be removed from the Lowband assembly Replacement 1 Assure the flexible coax cable W18 from the 3rd Converter is routed through the hole in the RF deck shield Conne...

Page 345: ...e until the spring tab clicks into position 2 Replace the ribbon cables to the correct locations A30 FIFA Removal 1 Refer to Figure 11 24 Remove the semi rigid cables W37 W39 W41 W54 W55 and W56 2 Ref...

Page 346: ...346 Chapter11 Assembly Replacement Procedures RF Section E4446A E4447A E4448A RF Section Option Assemblies E4446A E4447A E4448A Figure 11 26...

Page 347: ...Electronic Attenuator Removal 1 Refer to Figure 11 26 Remove the semi rigid cables W51 and W52 2 Remove the ribbon cable from the attenuator assembly 3 Refer to Figure 11 25 Using the T 10 driver remo...

Page 348: ...348 Chapter11 Assembly Replacement Procedures RF Section E4446A E4447A E4448A Option 110 Assemblies E4446A E4447A E4448A Figure 11 27 Option 110 Assembly and Cable Locations...

Page 349: ...ons 2 Refer to Figure 11 27 Remove cables W103 and W104 with AT3 Remove all the wires from the A36 Preamplifier 3 Refer to Figure 11 28 Remove the three screws 1 and lift the preamplifier and bracket...

Page 350: ...ier Torque to 3 inch pounds 2 Attach the ground wire to the ground lug of the preamplifier 3 Install the preamplifier bracket assembly into position and attach with the three screws 1 Refer to Figure...

Page 351: ...tions 2 Refer to Figure 11 28 Remove cables W101 W102 W103 W104 and ribbon cable W91 3 Remove the three screws 2 that attach the switch to the bracket Lift the switch from the bracket Replacement 1 At...

Page 352: ...lies E4446A E4447A E4448A Figure 11 31 Option 123 Assembly and Cable Locations A34 Mixer Removal 1 Drop the front frame See page 314 for instructions 2 Refer to Figure 11 31 Remove cables W93 W98 W99...

Page 353: ...lator the square black component near the center of the board This thermal pad transfers heat from the voltage regulator in the back side of the board to the sheet metal chassis When replacing the mix...

Page 354: ...A E4448A Figure 11 32 SW3 Removal 3 Refer to Figure 11 31 Remove the two screws 4 that attach the SW3 bracket to the main bracket Lift the switch bracket assembly from the instrument 4 Refer to Figure...

Page 355: ...he SW3 bracket to the main bracket Torque to 9 inch pounds 3 Refer to Figure 11 32 Replace cables W89 W93 and W94 Torque to 9 in lbs 4 Replace ribbon cable W96 5 Replace the front frame SW5 Switch Rem...

Page 356: ...the three screws removed earlier Torque to 6 in lbs 2 Place the switch bracket assembly into place on the main bracket Refer to Figure 11 31 Replace the two screws 2 that attach the SW5 bracket to th...

Page 357: ...ve the instrument outer case and top brace Refer to the Instrument Outer Case and the Top Brace removal procedures 2 Drop the front frame Refer to the Front Frame section 3 Unplug the ribbon cables fr...

Page 358: ...do not torque 3 Replace the semi rigid cables to the correct locations Torque the cables to 10 inch pounds 4 Torque the screws to 9 inch pounds 5 Replace the coaxial cable 6 Dress the ribbon cables b...

Page 359: ...e the instrument outer case and top brace Refer to the Instrument Outer Case and the Top Brace removal procedures 2 Drop the front frame Refer to the Front Frame section 3 Unplug the ribbon cables fro...

Page 360: ...not torque 3 Replace the semi rigid cables to the correct locations Torque the cables to 10 inch pounds 4 Torque the screws to 9 inch pounds 5 Replace the coaxial cable 6 Dress the ribbon cables betwe...

Page 361: ...Removal 1 Remove the instrument top brace Refer to the Top Brace removal procedure 2 Refer to Figure 11 37 Using the T 10 driver remove the 5 screws 1 securing the A5 power supply assembly 2 to the d...

Page 362: ...he power supply assembly into position in the deck Push down to mate the assembly with the motherboard connector 2 Refer to Figure 11 37 Using the T 10 driver replace the 5 screws Torque to 9 inch pou...

Page 363: ...y Board A39 USB Memory Board CAUTION Use ESD precautions when performing this replacement procedure Removal 1 Remove the instrument top brace Refer to the Top Brace removal procedure 2 Remove the 9 sc...

Page 364: ...364 Chapter11 Assembly Replacement Procedures A39 USB Memory Board 3 Remove the USB Memory board To do this gently lift the board vertically from its socket on the PSA motherboard...

Page 365: ...y insert the connectors into the PSA motherboard sockets but do not exert so much force as to break the connector 2 After installation the memory board should look like this 3 Put the rear plate in pl...

Page 366: ...ring the small panel to the frame 2 The SCSI board can be removed through the rear panel by pulling up on the board to disengage it from the CPU board Figure 11 38 SCSI Board Removal Replacement 1 Rep...

Page 367: ...Assemblies Standard Instrument Vertical Board Assemblies Standard Instrument CAUTION Use ESD precautions when performing this replacement procedure Figure 11 39 shows the location of the vertical boa...

Page 368: ...Description 1 A5 Power Supply 6 A10 3rd Converter Assembly 2 A6 SCSI Interface Board or A39 USB Memory Board 7 A11 Reference Assembly 3 A7 Digital IF Assembly 8 A12 LO Synthesizer Assembly 4 A8 Analo...

Page 369: ...ard P3 to A9 2nd LO J1 W17 Cable 10 coax with ferrites A19 RYTHM highband output to A10 3rd Converter J1 W18 Cable 7 coax with ferrites 321 4 MHz A20 Lowband assy to A10 3rd Converter J2 W18 Cable E44...

Page 370: ...from A31 WB Analog IF to A32 WB Digital IF Option 122 or 140 E4440 60341 W61 W61 Cable 65 coax 100 MHz Ref from A11 Reference Assembly to A31 WB Analog IF Option 122 or 140 8121 1007 W62 W62 Cable 95...

Page 371: ...sembly After the cables are removed pull up on the ejector tabs to unseat the board from the motherboard connector then slide the board up to remove it from the deck NOTE For E4447A A10 3rd Converter...

Page 372: ...le through the hole in the RF deck shield Remove the 3rd Converter assembly from the instrument Replacement 1 Install the 3rd Converter assembly and assure the flexible coax cable W18 from the 3rd Con...

Page 373: ...oved Refer to the silk screen on the instrument top brace along with the matching numbers on the cables and near the connectors on the boards for correct placement of cables Torque any semi rigid cabl...

Page 374: ...oval procedure 2 Drop the front frame Refer to the Drop the Front Frame procedure 3 Remove any assemblies necessary to access the rear of the midweb where the defective fan is located You will need to...

Page 375: ...the 4 plastic rivets that secure the fan to the mid web With the rivets center posts raised press the rivets through the mid web and into the fan Press down on the center post to snap the rivets into...

Page 376: ...ply Refer to the A5 Power Supply removal procedure 5 Remove the vertical board assemblies Refer to the Vertical Board Assemblies Standard Instrument removal procedure 6 Refer to Figure 11 44 Undress t...

Page 377: ...ed Torque any semi rigid cables to 10 inch pounds 5 Replace the power supply Refer to the A5 Power Supply replacement procedure 6 Replace the vertical board assemblies Refer to the Vertical Board Asse...

Page 378: ...E4445A removal procedure 4 Unplug the front frame ribbon cable from the motherboard 5 Refer to Figure 11 45 Using the T 10 driver remove the 2 screws 1 that attach the disk drive cover to the deck 6 U...

Page 379: ...Chapter 11 379 Assembly Replacement Procedures A23 Disk Drive Figure 11 45 Disk Drive and Motherboard Removal...

Page 380: ...380 Chapter11 Assembly Replacement Procedures A23 Disk Drive Figure 11 46 Disk Drive Board Removal...

Page 381: ...e and lock the connector to secure the cable 4 Refer to Figure 11 45 Slide the disk drive assembly into the disk shield 5 Replace the ferrite block around the flat flex cable 6 Plug in the flat flex c...

Page 382: ...al assemblies Refer to the Vertical Board Assemblies Standard Instrument removal procedure 4 Remove the A5 assembly Refer to the A5 Power Supply removal procedure 5 Remove the A26 assembly Refer to th...

Page 383: ...Chapter 11 383 Assembly Replacement Procedures A25 Motherboard Figure 11 47 Bottom Screws...

Page 384: ...and W8 ribbon cable to the motherboard 4 Replace the mid web fan assembly Refer to the Fans Mid Web replacement procedure 5 Replace the A5 assembly Refer to the A5 Power Supply replacement procedure 6...

Page 385: ...lled on the new processor board refer to the procedure in Chapter 12 for information on transferring data to the new processor Removal 1 Remove the instrument top brace Refer to the Top Brace removal...

Page 386: ...386 Chapter11 Assembly Replacement Procedures A26 CPU Assembly Figure 11 48 CPU Screw Locations Figure 11 49 CPU Assembly Removal...

Page 387: ...10 driver secure the assembly to the rear frame with the 14 screws 1 Torque to 9 inch pounds 4 Replace the A6 SCSI board Refer to the A6 SCSI Board replacement procedure 5 Replace the A7 Digital IF as...

Page 388: ...1 Remove the instrument top brace Refer to the Top Brace removal procedure 2 Remove the A26 assembly Refer to the A26 CPU Assembly removal procedure 3 Refer to Figure 11 50 Cut the standoffs flush wit...

Page 389: ...with replacement standoffs 1 Install the new standoffs 2 To replace the DRAM or Flash boards align the connectors and pins of the board over the holes and press down to seat the board 3 Replace the A...

Page 390: ...dditional cables to remove 3 Remove the vertical board assemblies Refer to the Vertical Board Assemblies Standard Instrument removal procedure 4 Remove the A6 SCSI board Refer to the A6 SCSI Board rem...

Page 391: ...Chapter 11 391 Assembly Replacement Procedures Rear Frame Figure 11 51 Rear Panel Cables Figure 11 52 Rear Dress Panel Removal...

Page 392: ...Using the T 10 driver replace the 13 screws that secure the dress panel to the rear frame For alignment purposes tighten the screws marked with a 1 and a 2 silkscreened on the dress panel first Torqu...

Page 393: ...emoval procedure 3 Remove the front frame Refer to the Front Frame removal procedure 4 Refer to Figure 11 54 Using a 5 16 inch wrench disconnect the semi rigid cable 2 from the connector 5 Using the T...

Page 394: ...input connector bracket to the deck Torque to 9 inch pounds 4 Using a 5 16 inch wrench reconnect the semi rigid cable to the connector To avoid twisting the cable hold onto it during tightening Torque...

Page 395: ...the cable clamps Using the T 10 driver remove the 11 screws 1 securing the front shield 2 to the front frame Lift the shield from the front frame After the subassembly is changed replace the front sh...

Page 396: ...ront Frame Subassemblies The front frame assembly consists of the following sub assemblies Front Panel Interface Board 1 Inverter Boards 2 W5 Flat Flex cable 3 Backlight extension cable 4 Display Moun...

Page 397: ...ion 1 Display Assembly 9 Keypad 2 Front Shield 10 Display Bezel Assembly 3 A2 Front Panel Interface Assembly 11 Dress Panel Assembly 4 A28 Audio Out Board 12 RPG Knob 5 W1 Ext Trigger Input Cable 13 H...

Page 398: ...8 Chapter11 Assembly Replacement Procedures Front Frame Subassemblies A1 Display and Filter Figure 11 58 Display Parts The display assembly consists of EMI filter 1 display mount 2 flat panel display...

Page 399: ...Figure 11 59 Unplug the Display Converter Board 10 from the Flat Panel Display Peel back the attached flat flex cable 3 with the tape still attached until the ferrite block is free of the rubber mount...

Page 400: ...e bottom display backlight cable from the display under the rubber tab of the display mount 5 Plug the bottom backlight cable from the display into the backlight extension cable 4 Press the backlight...

Page 401: ...2 Flip the display mount assembly over and place it filter side up on a flat surface 3 The display filter can now be removed by pulling back on one of the corner supports 2 and lifting the filter 1 o...

Page 402: ...boards 3 Unplug the Audio Out 3 cable from the interface board 4 Unplug the display flat flex cable 4 from the front panel interface board To do this you must first pull up on both sides of the lockin...

Page 403: ...tor in the keyboard 2 Using the T 10 driver replace the 7 screws that secure the board to the front frame Torque to 9 inch pounds 3 Plug the display flat flex cable into the front panel interface boar...

Page 404: ...1 63 The 10 screws also attach the dress panel bezel subpanel keypad and keyboard to the front frame Take care to keep these parts in the correct order and aligned properly 5 Lift the front frame off...

Page 405: ...Chapter 11 405 Assembly Replacement Procedures Front Frame Subassemblies Figure 11 63 Keypad Parts...

Page 406: ...to place 3 Refer to Figure 11 63 Place the keyboard bezel assembly face down on top of the dress panel and subpanel on a flat surface Install the front frame over the keyboard bezel assembly Using the...

Page 407: ...replaced as an assembly CAUTION Be careful to not scratch the dress panel when removing or replacing this part 1 Remove the front frame assembly Refer to the Front Frame removal procedure on page 314...

Page 408: ...408 Chapter11 Assembly Replacement Procedures Front Frame Subassemblies Figure 11 64 Front Panel External Trigger Input Connector Removal...

Page 409: ...409 12 Post Repair Procedures...

Page 410: ...placement CPU Assembly page 422 Configuring a Replacement Flash Memory Assembly page 425 To determine which Performance Verification Adjustment Software tests to perform refer to Table 12 1 in this ch...

Page 411: ...afety considerations and the safety note definitions in the front of this guide before you begin the procedures in this chapter Check that the UUT has been turned on and allowed to warm up Ensure that...

Page 412: ...ssfully completing the necessary adjustment test or configuration procedure verify that the instrument meets specifications by running the performance verification test or tests listed NOTE Refer to y...

Page 413: ...se Ripple option B7J Resolution Bandwidth Switching Uncertainty A9 2nd LO Fan Control Assembly Second LO Power adjustment Check functionality of Trig 1 and Trig 2 rear panel outputs Check fan operatio...

Page 414: ...debands both tests Frequency Span Accuracy A13 Front End Driver Board Perform the calibration constant reset procedure for this assembly E4446A E4447A E4448A only Second LO Power adjustment Lowband Mi...

Page 415: ...ll bands Reset attenuator activations and 50 MHz switch activations using software utility Absolute Amplitude Accuracy Frequency Response all frequencies Input Attenuation Switching Uncertainty A18 YT...

Page 416: ...justment Reset Preamp switch activations using software utility Requires FW revision A 06 04 or greater Absolute Amplitude Accuracy Displayed Average Noise Level Frequency Response Below 300 kHz Frequ...

Page 417: ...ty Wide IF IF Frequency Response Wide IF Residual Responses Noise Sidebands 50kHz Noise Sidebands 50kHz A32 Wideband Digital IF Assembly Option 122 or 140 Load the latest instrument firmware to assure...

Page 418: ...Flatness adjustment Audio Distortion Audio Amplitude Accuracy A38 Option Driver Assembly Millimeter Unpreselected Mixer Bias adjustment if Option 123 installed E4446 47 48 Frequency Response adjustme...

Page 419: ...the RF Envelope window and will appear as an unsynchronized signal When the RF Burst trigger function is activated the RF train will sync on the burst trigger signal Procedure 1 Press Reset 2 Press M...

Page 420: ...l Front Panel Test Description The Front Panel Test allows key presses and RPG knob rotations to be displayed on the instrument s screen This diagnosis is useful when checking the functionality of all...

Page 421: ...s E4440 60242 27 GHz models or E4446 60059 27 GHz models have a switchable 28 V connector on the rear panel Connect a voltmeter to the rear panel Noise Source Drive Out connector To turn on and off th...

Page 422: ...ed to restore the serial number Procedure Capturing Critical Data for the CPU Board Ensure that all information is recorded exactly as it is displayed 1 To view the host name and IP address press Syst...

Page 423: ...ective CPU board and installed on the new CPU board The Flash memory board contains the operating system main firmware measurement personality firmware license key words The DRAM memory board can be c...

Page 424: ...er on the serial number tag on the rear panel Use extreme care when typing the serial number 4 Follow the prompts and enter the serial number Entering the Time and Date 1 Press System Time Date and se...

Page 425: ...rmware will need to be loaded and the license keywords installed The following procedure outlines how to perform the process of configuring a replacement Flash memory board NOTE Since the Flash memory...

Page 426: ...nt key on the PSA e On the PSA press System More Show System Under the Options heading you can see the designators for the hardware and firmware options Hardware options are 1DS preamp B7J electronic...

Page 427: ...license key number c After you have entered the option designator and the license key number press Activate License Step 4 Loading Firmware for Measurement Options if needed a Refer to Chapter 13 Fir...

Page 428: ...t were present when Agilent shipped the instrument The option designators can be found here The serial tag may only provide a partial list since options are retrofitted in the field Contact the instru...

Page 429: ...429 13 Firmware Upgrades...

Page 430: ...t Instruments without an IP address or a PC not connected to the same subnet as the instrument require a crossover cable A crossover cable is a CAT RJ 45 cable with cross pinning The Agilent p n is 81...

Page 431: ...skipped NOTE Enter the path for Restore the Configuration and User Data when prompted In a service situation this may not be possible since the PC containing these files is the PC that was used during...

Page 432: ...432 Chapter13 Firmware Upgrades Firmware Upgrades Including Measurement Personality Upgrades...

Page 433: ...YTHM assembly 91 A2 front panel interface board description 159 part number 224 removal 402 troubleshooting 160 A20 lowband assembly 71 92 part number 224 removal 324 343 troubleshooting 82 104 A21 FE...

Page 434: ...4 clock measurements 142 configuration information 423 426 configure a replacement CPU 422 configure a replacement Flash memory assembly 425 contacting Agilent 37 CPU assembly configuring 422 see A26...

Page 435: ...unleveled error 78 98 LO synthesizer board see A12A1 LO synthesizer assembly loading measurement option firmware 427 low band path 71 low band preamp 74 94 lowband see A20 lowband assembly M main gai...

Page 436: ...ns 45 static damage 19 static safe accessories 20 step attenuators A10 third converter assembly 127 support URL 37 support web site 37 synthesizer see A12 synthesizer assembly system defaults restorin...

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