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Page 1: ...buy your excess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In stock Ready to ship TAR certified secure asset solutions Expert team I Trust guarantee I 100 satisfaction All trademarks brand names and brands appearing herein are the property of th...
Page 2: ... 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 on the ...
Page 3: ...HEWLETT PACKARD HP 75000 SERIES C 500 MHz Digitizing Oscilloscope Service Manual ...
Page 4: ...osed is the ServiceManual for the HP E1426A500 MHz Digitizing Oscilloscope Insertthismanual into the binder that came with the HP E1426AUser s Manual EdHEWLETT PACKARD Copyright O Hewlett Packard Company 1991 1999 Manual Part Number E1426 97003 Printed January 1999 Printed i nU S A ...
Page 5: ...t is the same for identical instruments it changesonlywhena configurationchangeismade tothe instrument The suffii however is assignedsequentially and isdifferentforeachinstrument T h i smanualappliesdirectlytoinstrumentswithserial numbersprefured3028Aand above FaHEWLETT PACKARD Copyright O Hewlett Packard Company 1991 1999 Manual Part Number E1426 97003 HP 75000 SERIES C 500 MHz DigitizingOscillos...
Page 6: ...THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLEAND EXCLUSIVEREMEDIES HP SHALLNUT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIALDAMAGES WHETHER BASED ON CONTRACT TORT OR ANYOTHER LEGALTHEORY NOTICE The information contained in this document is subject to change without notice HEWLEIT PACKARD HP MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIMITED...
Page 7: ...EN 50082 11 1992 4 kV CD 8 kV AD IEC 801 3 l 984 1EN 50082 1 I 992 3 Vlm IkHz 80 AM 27 1000 MHz IEC 8OI 4 1988 1EN50082 1 I 992 0 5 kV Sig Lines 1 kV Power Lines Supplementary Information The product herewith complies with the requirementsof the Low Voltage Directive 73123lEECand the EMC Directive891336 EEC and carries the CE marking accordingly This product was tested in a typical configuration w...
Page 8: ...overe or shields are for use service trained pemnnel ay Under certain conditions d m row voltages may exist even with the equipment switchedoff To avoid d a n g e m electricalshock DO NOT perform proce res involving cover or shield removal unlessyou are qualified to do eo DO NOT operate damagedequipment Whenever it is possible that the safety rotection features built into this roduct have been imp...
Page 9: ...nformation for instruments installed in the mainframe Plug In Module User s Manuals Contains plug in module programming and configuration information These manuals contain examples for the most used module functions and a complete SCPI command reference for the plug in module HP E1400B Mainframe Service Manual Contains service information for the mainframe This manual contains information for orde...
Page 10: ...cedures required to operate the oscilloscope perform scheduled preventive maintenance and perform the operator s check Chapter 4 Verification Tests contains information and procedures required to test the oscilloscope Three levels are provided for functional verification operation verification and performance verification Chapter 5 Adjustments contains information and procedures required to readju...
Page 11: ...Available 13 1 10 Recommended Test Equipment 13 Chapter 2 Page INSTALLATION 2 1 2 1 Introduction 2 1 22 Initial Inspection 2 1 23 Preparation for Use 2 1 24 Operating Environment 22 25 Storage and Shipment 22 2 6 Environment 22 2 7 Packaging 22 Chapter 3 page OPERATING INSTRUCTIONS 3 1 3 1 Introduction 3 1 2 Safety Considerations 3 1 33 Preventive Maintenance 3 2 34 RequiredEquipment 3 2 3 5 Clean...
Page 12: ...red 3 1 53 Vertical Calibration Procedure 5 2 54 Delay Cal Calibration Procedure 54 55 Time Null Calibration Procedure 5 6 5 6 Logic Trigger Calibration Procedure 5 8 57 High Frequency Pulse Response Adjustment Procedure 510 Chapter 6 Page REPLACEABLE PARTS 6 1 6 1 Introduction 61 62 Ordering Information 61 K 3 Exchange Assemblies 61 I Abbreviations 61 645 Replaceable Parts List 61 Chapter 7 page ...
Page 13: ...agram 1 2 DC Calibrator Test Set up 4 4 Input Resistance Test Set up 4 6 Voltage Measurement Accuracy Test Set up 4 8 m s e t Accuracy Test Set up 411 Bandwidth Test Set up 414 Time Measurement Accuracy Test Set up 4 18 Trigger Sensitivity Test Set up 4 21 Oscillator Output Test Set up 4 24 Example Vertical Calibration Setup 5 2 Example Delay Calibration Setup 5 4 Example Time Null Calibration Set...
Page 14: ...Figure 1 1 HP E1426AlE Accessories Supplied 1 0 General Information ...
Page 15: ...ed documentation should be reviewed for familiarization with safety markings and instructions before operation or service Refer to the Safety Considerations page found a t the beginning of this manual for a summary of the safety information Safety information for preventive maintenance testing adjusting or service is found in appropriate places throughout this manual 1 4 Manual Updates Manual Upda...
Page 16: ...rmation COMP or SCPI is received from the mainframe controller and the necessary instructions are sent to the Acquisition PCA to perform the specific task When the digital waveform information is received from the Acquisition PCA all the user requested parameters are measured and routed to the mainframe Additional functions include n L and ECL trigger signals from the mainframe are routed to the A...
Page 17: ...lain how to adapt this manual to your instrument 1 7 Options There are no options currently available for the HP E1426A Oscilloscope Module 1 8 Accessories There are no accessories currently available for the HP E1426A Supplied Oscilloscope Module 1 9 Equipment A number of oscilloscope accessories are available for use with Available the HP E1426A Oscilloscope and include The HP 10400A Miniature P...
Page 18: ...e Power MetaPower Sensor Power Splitter Power Supply Signal Generator M Preventative Maintenance F Functional Verification Check C Operational Verification Tests P Perforrnanct Verification Tests A Adjustments T Troubleshooting Cables and Adapters Adapter 2 Adapta 3 Adapter Adapter Adaprer Adapter Adapter Cable 2 Cable 4 Cable 1 4 General Information General purpose 1 500MHz 70 dBm to 0 dBm 3 accu...
Page 19: ...ven in Chapter 4 If the contents are incomplete if there is mechanical damage or defect or if the instrument does not pass the electrical performance test notify the nearest Hewlett Packard ofice If the shipping container is damaged or the cushioning material shows signs of stress notify the carrier as well as the Hewlett Packard ofice Keep the shipping materials for the carrier s inspection 2 3 P...
Page 20: ...t Original Packaging Containers and materials identical to those used in factory packaging are available through Hewlett Packard offices Mark the container FRAGILE to assure careful handling In any correspondence refer to the instrument by model number and full serial number Other Packaging The following general instructions should be used for re packaging with commercially available materials a W...
Page 21: ... provided from the main power source to the product input wiring terminals power cord or supplied power cord set Warning Any interruption of the protective grounding conductor inside or outside the instrument or disconnecting the protective earth terminal will cause a potential shock hazard that could result in personal injury Grounding one conductor of a two conductor outlet is not sufficient pro...
Page 22: ...loscope observe anti static techniques whenever working on the Oscilloscope 3 3 Preventive Preventive maintenance for the Oscilloscope consists of periodically Maintenance cleaning the Oscilloscope Note Hewlett Packard recommends a 12 month interval between cleaning the Oscilloscope However cleaning intervals are mostly dependent upon where the Oscilloscope is used The Oscilloscope should be clean...
Page 23: ...ies have static sensitive devices that can be damaged by a vacuum cleaner 1 Remove the A1 CPU PCA and the A2 Acquisition PCA See Chapter 8 for instructions Caution The A1 CPU PCA and the A2 Acquisition PCA contain static sensitive devices that can be damaged when handling Use static control devices wrist straps static mats etc when handling these assemblies CONTACTS CONTAC FRONTVIEW TOP VIEW ASSEM...
Page 24: ...3 7 Operator s The operator s checks should be performed after preventive Checks maintenance minimum or any time to verify that the Oscilloscope is connected properly and is responding to the simplest commands Note If necessary refer to the HP E1405A Command Module User s Manual or applicable command module manual for information on address selection and external cabling guidelines Refer as requir...
Page 25: ...ection using the applicable command module and mainframe manuals before troubleshooting Example F O the example use an HP IB select code of 7 primary address of 09 and secondary address of 05 for the Oscilloscope COMPatible programming language an HP Series 2001300 Computer with HP BASIC OUTPUT 70905 SUMM PRES9 OUTPUT 70905 TEST TALL OUTPUT 70905 SUMM QUES TEST ENTER 70905 A PRINT A OUTPUT 70905 R...
Page 26: ...sfies the critical specifications given in the table may be substituted Results of the verification tests may be tabulated in Table 4 1 Verification Test Record The Verification Test Record lists all of the verification test specifications and the acceptable limits for each specification If verification test results are recorded during an incoming inspection of the instrument they can be used for ...
Page 27: ...or of the instrument The purpose of this test is to verify the HP E1426A is communicating with the command module external controller andfor external terminal by performing a self test Note If necessary refer to the HP El405 Command Module User s Manual or applicable command module manual for information on address selection and external cabling guidelines Refer as required to the HP E1426A User s...
Page 28: ...ault state P s e t s the HP E1426A Perfbrm test d l routine Read t a t event register Enter test ewnt register results Print t a t ewnt register results h t a t t the instrument Terminateprogram Note After a test all is performed the RUN command must be executed to restart the instrument 4 8 Operation There are no operation verification procedures for the HP E1426A Verification Use the Performance...
Page 29: ...gure 4 1 DC Callbrator Test Set up 2 Set the HP E1426A controls as follows Reset HP El426A RST DC Calibrator Output to 0 V CAL SCAL DOUT ZVOL Verify the Multimeter reads close to 0 000 V Record the reading to four decimal places v1 Setthe HP E1426ACalibrator Output to 5V CAL SCAL DOUT FVOL Verify the Multimeter reads close to 5 000V Record the reading to four decimal places v 2 SubtractV1from V2 T...
Page 30: ...ple is written using an HP IB select code of 7 primary address of 09 and secondary address of 05 for the HP E1426A COMPatible programming language an HP Series 200 300 Computer with HP BASIC Execute 10 OUTPUT 70905 e CLS 20 OUTPUT 709OS RST 30 OUTPUT 70905 CAL SCAL DOUT ZVOL 40 PAUSE 50 OUTPUT 70905 CAL SCAL DOUT FVOLv 60 PAUSE 70 END Verlflcatlon Tests 4 5 ...
Page 31: ...ODULE MODULE Notes Flgure 4 2 Input Resistance Test Set up 2 Set the HP E1426Acontrols as follows Reset HP E1426A RST Channel 1DC a t 1Mn CHAN1 COUP DC 3 Verify the Multimeter reads 1MR flOkR 4 Set the HP E1426Achannel 1controls to 50R CHAN1 COUP DCF 5 Verify the Multimeter reads 5W 0 5R 6 Repeat steps 1through 5for channels 2 3 and 4 When repeating the procedure all references to channel 1should ...
Page 32: ...condary address of 05 for the HP E1426A COMPatible programming language an HP Series 2001300 Computer with HP BASIC Execute OUTPUT 70905 CLS OUTPUT 70905 RSTn FOR C h a n n e l l TO 4 PRINT Connect t h e m u l t i r n e t e r t o s c o p e c h a n n e l SVALS Channe1 PRINT 1 MOhrn OUTPUT 70905 CHAN CVALS C h a n n e l 6 COUP DC PAUSE PRINT 50 Ohm OUTPUT 70905 CHANW6VALS C h a n n e l 6 COUP DCF PA...
Page 33: ...rols as follows Reset HP E1426A RST Time base to automatic T1M MOD AUT Start data acquisition RUN Turn on channel 1 VIEW CHANl Turn off unused channels BLAN CHANB CHAN3 CHANI Channel 1to DC at 1MR CHAN1 COUP DC Acquisition type to average ACQ TYP AVER Acquisition count to 32 ACQ COUN 32 Channel 1range to 40 V CHAN1 RANG 40 Channel 1 offset to 17 5 V CHAN1 OFFS 17 5 Measure channel 1 MEAS SOUR CHAN...
Page 34: ...5 v 1 38 V to 1 42V 690 mV to 710 mV 345mV b 355 mV 138m V b 142mV 69 mV to 71 mv 34 3 mV to 35 7 mV 13 3to 14 7 mV 6 3 mV to 7 7 mV e multimeter after IL thl rerifying the output o f t e supply to avoid kupling noise into the channel 7 Repeat steps 2 through 6 for channels 2 3 and 4 When repeating the procedure all references to channel 1should be changed to the channel being tested Turn off all ...
Page 35: ...0905 ACQ TYP AVER OUTPUT 70905 ACQ COUN 32 PRINT Connect the power supply to scope channel VAL Channel FOR Measurement 1 TO 12 PRINT Set the power supply to 0 voltse1 PAUSE OUTPUT 70905 CHAN VAL Channel 6 RANG VALS Range Measurement OUTPUT 70905 THAN VALS Channel 6 OFFS VAL Offset Measurement OUTPUT 70905 wMEAS SOUR CHANn VAL Channell OUTPUT 70905 DIG CHAN9 VAL Channel OUTPUT 70905 MEAS VAV ENTER ...
Page 36: ...on channel 1 VIEW CHANl Turn off unused channels BLAN CHAN2 CHAN3 CHAN4 Channel 1to DC at 1MR CHAN1 COUP DC Acquisition type to average ACQ TYP AVER Acquisition count to 32 ACQ COUN 32 Channel 1range to 4 V CHAN1 RANG 4 Channel 1offsetto 20V CHAN1 OFFS 20 Measure channel 1 MEAS SOUR CHANl Digitize channel 1 DIG CHANl Measure average voltage MEASVAV 3 Verify that average voltage as measured by the ...
Page 37: ...ll unused channels using the BLANk command Offset errors can be caused by the need for self calibration Perform vertical calibration see A4justment procedures Chapter 5 before troubleshooting instrument If self calibration fails to correct problem cause may be the attenuator or A2 PCA See troubleshooting in Chapter 8 6 Disconnect test equipment 4 12 Verification Tests ...
Page 38: ...UTPUT 70905 RUNN OUTPUT 70905 BLAN CHANl CHAN2 CHAN3 CHAN4 OUTPUT 70905 VIEW CHANelCVALS Channel OUTPUT 70905 e CHAN VAL Channel 6 COUP DC OUTPUT 70905 ACQ TYP AVER OUTPUT 70905 ACQ COUN 32 PRINT Connect the power supply to scope channel hVALS Channe1 FOR Measurement l TO 3 PRINT Set the power supply to VAL Power supply Measurement volts PAUSE OUTPUT 70905 THANv VAL Channel 6 RANG VAL Range Measur...
Page 39: ...andwldth 180 mV 2 Set the Signal Generator controls as follows Frequency 1 MHz Output 2 4 dBm Note Settingthe output to 2 4 dBm will produce a 8 4 dBm level a t the HP 1426A 5052 input loss occurs through the power splitter 3 Set the HP E1426A controls as follows Reset HP E1426A RST Time base to 2psec T1M RANG 2E 6 Turn on channel 1 VIEW CHAN1 Turn off unused channels BLAN CHAN2 CHAN3 CHAN4 Channe...
Page 40: ...1MHz Correct the result in step 9 with any difference in the power meter reading from step 6 using the following formula Observe signs step 9 step 6 dB For example Resultfrom step 9 2 3 dB Power meter reading 0 2 dB REL then true response 2 3 0 2 2 1 dB Verify the result in step 10is 13 0dB Connect the power splitter to next channel being tested Repeat steps 2 through 12for channels 2 3 and 4 Note...
Page 41: ...sor 500MHz value 18 Set the Signal Generator frequency to 500MHz then a4ust the output level for a power meter reading as close as possible to 0 0 dB REL Record the reading Power Meter 19 Set the HP E1426A controls as follows Time base to 5nsec T1M RANG 5E 9 Digitize channel 1 DIG CHANl Measure peak to peak voltage MEAS VPP 20 Record the measured peak to peak voltage V 500 MHz 21 Calculate the res...
Page 42: ...s written using an HP IB select code of 7 primary address of 09 and secondary address of 05 for the HP E1426A COMPatible programming language an HP Series 200 300 Computer with HP BASIC ecut OUTPUT 70905 CLSm OUTPUT 70905 R S T OUTPUT 70905 TIM RANG 2E 6 OUTPUT 70905 VIEW CHAN1 OUTPUT 70905 BLAN CHAN2 CHAN3 CHAN4 OUTPUT 70905 CHANl COUP DCF OUTPUT 70905 TRIG SOUR CHANl OUTPUT 70905 ACQ TYP AVER OU...
Page 43: ... the Signal Generator controls as follows Frequency 500MHz Output 150mVrms 3 Set the HP E1426A controls as follows Reset HP E1426A RST Time base to 5 nsec T1M RANG 5E 9 Time base delay to 0 sec T1M DEL 0 Turn on channel 1 VIEW CHANl Turn off unused channels BLAN CHAN2 CHAN3 CHAN4 Channel 1to DC at 50R CHAN1 COUP DCF Acquisition type to average A C Q m AVER Acquisition count to 8 ACQ COUN 8 Channel...
Page 44: ...IM DEL Value 8 ns 8E 9 128ns 128E 9 400 ns 4E 7 800 ns 8E 7 10 Set the HP E1426A controls as follows Tolerance f110ps f116ps f130ps I50 ps Perform an autoscale AUT Time base to 2 p e c T1M RANG 2E 6 Time base delay to 0 sec T1M DEL 0 Measure channel 1 MEAS SOUR CHANl Digitize channel 1 DIG CHANl Measure time of 1stpositive edge at 0 V MEASTVOL 0 l 1 1 Record the measured time that 1st positive edg...
Page 45: ...N1 COUP DCF OUTPUT 70905 ACQ TYP AVER OUTPUT 70905 ACQ COUN 8 OUTPUT 70905 CHANl RANG 4 OUTPUT 70905 MEAS SOUR CHAN1 OUTPUT 70905 DIG CHANlm OUTPUT 70905 MEAS TVOL 0 1 ENTER 70905 Timel FOR Measurement l TO 4 OUTPUT 70905 gTIM DEL VAL Delay Measurement OUTPUT 70905 MEAS SOUR CHAN1 OUTPUT 70905 DIG CHANln OUTPUT 70905 MEAS TVOL O ln ENTER 70905 Time2 PRINT Delta t for sVALS Delay Measurement 6 was ...
Page 46: ...z Output 100mv 3 Set the HP E1426A controls as follows Reset HP E1426A RST Time base to 20 nsec T1M RANG 20E 9 Turn on channel 1 VIEW CHANl Turn off unused channels BLAN CHANB CHANS CHANI Channel 1to DC a t 50R CHAN1 COUP DCF Channel 1range to 1 6 V CHAN1 RANG 1 6 Channel 1offset to 0 V CHAN1 OFFS 0 Acquisition type to average ACQ TYP AVER Acquisition count to 16 ACQ COUN 16 Trigger source to chan...
Page 47: ...nal Generator controls as follows Frequency 100MHz Output 3 12 mV rms Set the HP E1426A controls as follows Time base to 500psec T1M RANG 5E 8 Start HP E1426A running RUN On the HP E1426A front panel verify TRIGGERED LED is ON Connect the signal generator output to the next channel being tested Repeat steps 2 through 14for channels 2 3 and 4 When repeating the procedure all references to channel 1...
Page 48: ...PUT 70905 VIEW CHANW6VAL Channel OUTPUT 70905 CHAN 6VAL Channel 6 COUP DCF OUTPUT 70905 CHAND 6VAL Channel RANG 1 6 OUTPUT 70905 ACQ TYP AVER OUTPUT 70905 ACQ COUN 16 OUTPUT 70905 TR1G SOUR CHAN1 6VAL Channel OUTPUT 70905 TRIG LEV 0 OUTPUT 70905 RUN PRINT Triggered PAUSE PRINT Set the signal generator to 500 MHz and 250 mV rmsn PAUSE OUTPUT 70905 T1M RANG 1E 7 OUTPUT 70905 RUN PRINT Triggered PAUS...
Page 49: ... 2 Set the HP E1426A controls as follows Reset HP E1426A RST Perform an Autoscale function AUT Channel 1to DC at 1MR CHAN1 COUP DC Digitize channel 1 DIG CHANl Measure channel 1frequency MEAS FREQ Digitize channel 1 DIG CHANl Measure channel 1peak to peak voltage MEAS VPP 3 Verify the measured results are 51 5 kHz a t 800mV 4 Set the HP E1426A controls as follows Channel 1to DC at 50R CHAN1 COUP D...
Page 50: ...e an HP Series 20W300 Computer with HP BASIC Execute OUTPUT 70905 CLS OUTPUT 70905 RSTg OUTPUT 70905 AUT OUTPUT 70905 THAN1 COUP DC OUTPUT 70905 DIG CHAN1 OUTPUT 70905 MEAS SOUR CHANlS OUTPUT 70905 DIG CHAN1 OUTPUT 70905 MEAS FREQ ENTER 70905 Freq PRINT Freq OUTPUT 70905 MEAS VPP ENTER 70905 Vpp dc PRINT Vpp dc OUTPUT 70905 THAN1 COUP DCF OUTPUT 70905 DIG CHAN1 OUTPUT 70905 MEAS VPP ENTER 70905 Vp...
Page 51: ...esistance Test CHAN 1 1Mn son CHAN 2 1Mn son CHAN 3 1Mn 50n CHAN 4 1Mn 50n Voltage Measurement Accuracy Test CHAN 1 40 V Range 16 V Range 8 V Range 4 V Range 1 6 V Range 800 m V Range 400m V Range 160 m V Range 80 mV Range 40 mV Range 16mV Range 8 m V Range Verlflcatlon Tests Mln 4 990 Vdc 990 WI 49 50n 990 k n 49 50n 990 WI 49 50n 990 WI 49 50n 34 5 v 13 8V 6 9 V 3 45 v 1 38 v 690mV 345 mV 138m V...
Page 52: ...nge 400 mV Range 160mV Range 80 mV Range 40 mV Range 16mVRange 8 mV Range CHAN 3 40vRange 16V Range 8 V Range 4 V Range 1 6 V Range 800mVRange 400mVRange 160mV Range 80 mV Range 40 mV Range 16 mV Range 8 mV Range CHAN 4 40 V Range 16v Range 8V Range 4 V Range 1 6 V Range 800 mV Range 400mV Range 160mV Range 80 mV Range 40 mV Range 16mV Range 8 mV Range Mln Results Actual Max Veriflcatlon Tests 4 2...
Page 53: ...set CHAN 4 20 v Offset 9 v Offset 5 v Offset sandwidth Test CHAN 1 280 mV FullScale Rangeat 500 MHz 80 mV FuUScale Rangeat 500 MHz CHAN 2 280 mV FullScale Rangeat 500 MHz c80 mV FullScale Rangeat 500 MHz CHAN 3 280 mV FullScale Rangeat 500 MHz 80 mV FullScale Rangeat 500MHz CHAN 4 280 mV FullScale Range at 500 MHz 80 mV FullScale Rangeat 500 MHz rime Measurement Accuracy Test 8 nsec 128 nsec 400 n...
Page 54: ...1 6 V Range at 100MHz 1 6 V Range at 500 MHz 10mV Rangeat 500 MHz 10mVRangeat100MHz CHAN 4 l 6V Range at 100MHz 1 6VRangeat500MHz 10mV Rangeat 500 MHz lOmVRangeatl00MHz lscillator Output Test AC Calibrator Signal TriggeredLEDON TriggeredLEDON Triggered LED ON TriigeredLEDON TriggeredLEDON Triggered LEDON TriggeredLED ON TriggeredLEDON TriggeredLEDON TriggeredLEDON TriggeredLEDON TriggeredLEDON Tri...
Page 55: ...ne voltage must be 115 230 Vac f10 For greatest accuracy the temperature of the test area should be between 18 Cand 28 C and should be stable within f1 C 5 2 Equipment Equipment required for the a4ustment procedures is listed in Table Required 1 1 Recommended Test Equipment Any equipment that satisfies the critical specifications given in the table may be substituted Caution Do not remove the modu...
Page 56: ...4 connectors Note Verify that the BNC cables are not longer than 1meter and as close in length as possible I PROTECTED U TOP VIEW Figure 5 1 Example Vertical Calibration Setup 3 Load the default calibration data 4 Perform clear status reset then preset the Oscilloscope 5 Select and start the vertical calibration routine Calibration will last for approximately 15 minutes During calibration the acce...
Page 57: ... example shows how to perform a vertical calibration The example is written using an HP IB select code of 7 primary address of 09 and secondary address of 05 for the Oscilloscope COMPatible programming language an HP Series 200f300 Computer with HP BASIC Execute OUTPUT 70905 CAL SCAL DCALW OUTPUT 70905 CAL SCAL BCALm OUTPUT 70905 CLS OUTPUT 70905 RSTn OUTPUT 70905 SUMM PRES OUTPUT 70905 CAL SCAL V...
Page 58: ... the Oscilloscope AC Calibrator Output connector to the Input 1connector using a BNC cable Verify that the BNC cable is not longer than 1meter 1 1 PROTECTED UNPROTECTED TOP VIEW FIgure 5 2 Example Delay Callbratlon Setup 3 Perform clear status reset then preset the Oscilloscope 4 Select and start the delay calibration routine During calibration the access and error LED S will be on 5 4 Adjustments...
Page 59: ...steps 4 and 5 for input 4 9 When complete disconnect BNC cable and perform Time Null Calibration Procedure Example The following example shows how to perform a delay calibration The example is written using an HP IB select code of 7 primary address of 09 and secondary address of 05 for the Oscilloscope COMPatible programming language an HP Series 20W300 Computer with HP BASIC Execute 10 OUTPUT 709...
Page 60: ...opeAC Calibrator Output connector to both the Input 1and Input 2 connectors Note Verify that the BNC cables are not longer than 1meter and equal in length TEPI TEPI nPROTECTED UNPROTECTED E P TOP VIEW Flgure 5 3 Example Tlme Null Callbration Setup 3 Perform clear status reset then preset the Oscilloscope 4 Select and start the time null calibration routine During calibration the access and error L...
Page 61: ...ble and perform the Logic Trigger Calibration Procedure if necessary The following example shows how to perform a time null calibration The example is written using an HP IB select code of 7 primary address of 09 and secondary address of 05 for the Oscilloscope COMPatible programming language an HP Series 20W300 Computer with HP BASIC Execute 10 OUTPUT 70905 CLS Ckarstatus 20 OUTPUT 70905 RST Rese...
Page 62: ...fy that the BNC cable is not longer than 1meter PROTECTED UNPROTECTED TOP VIEW 0 ADJUST Figure 5 4 Example Logic Trlgger Calibration Setup 3 Read the calibration register to verify that no errors are present If 0 is returned proceed with step 5 If 0 is not returned the Logic Trigger calibration must be terminated and the cause of the error corrected See Chapter 4 CALibrate Subsystem for more infor...
Page 63: ...sconnect BNC cable and set the CAL FACTOR PROTECT switch to PROTECTED The following example shows how to perform a logic trigger calibration The example is written using an HP IB select code of 7 primary address of 09 and secondary address of 05 for the Oscilloscope COMPatible programming language an HP Series 2001300 Computer with HP BASIC Execute OUTPUT 70905 CLS OUTPUT 70905 RST1 OUTPUT 10905 S...
Page 64: ...R501 AT2 channel 2 is A2 R502 AT3 channel 3 is A2 R503 AT4 channel 4 is A2 R504 Connect the equipment as shown below Pulse Generator output is connected to the Input connector of the channel that is being adjusted using a type N cable 3 foot and adapters see table 1 1 3 Apply power to the Pulse Generator 4 Set the Oscilloscope controls on the channel being adjusted as follows Reset Oscilloscope RS...
Page 65: ...SOUR CHAN n VMAX Verify measured result is 5100 If VMAX measured result is loo an invalid measurement has occurred Find the cause and correct before continuing If correct proceed with step 6 6 Calculate overshoot VMAX VTOP VTOP VBASe 100 Verify calculated overshoot results are 3 f0 596 If correct proceed with step 7 If incorrect adjust the applicable resistor A2R501 through R504 depending on the c...
Page 66: ... 3 OFFSET I OUTPUT Address TIMEBASE RANGE 20E 9 DEL 1 5E 9 OUTPUT Address DIG CHAN 6VALS Channel WAIT 5 OUTPUT Address MEASURE VBASE ENTER Address Vbase PRINT VBASE VAL Vbase IF Vbase 100 THEN GOT0 Meas error OUTPUT A S M E A S U R E V T O P ENTER Address Vtop PRINT VTOP VAL Vtop IF Vtop 100 THEN GOT0 Meas error OUTPUT Address TIMEBASE RANGE 5E 9 DELAY 1 4E 9 OUTPUT Address DIG CHAN VAL Channel WA...
Page 67: ...nt that may be replaced on an exchange basis Exchange factory repaired and tested assemblies are available only on a trade in basis Defective assemblies must be returned for credit Assemblies required for spare parts stock must be ordered by the new assembly part number Table 6 2 lists reference designators and abbreviations used in the parts list schematics and throughout the manual In some cases...
Page 68: ... in the list for each major assembly Table 6 1 Part Numbers for Exchange Assemblies I I I Whenordering extraassembliesfor spare parta stock use new assembly part I Reference Designation A1 A2 Inumberonly Exchange ordererequirereturn of the defectivepart I 6 2 Replaceable Parts Description CPU PCA Acquisition PCA Part Number Exchange Assy E l m 1 E1426695M New Assy Not available Not available ...
Page 69: ...hrenheit O K degree Kelvin DEPC deposited carbon DET detector diam diameter DIA diameter used in parts list DIFF AMPL differential amplifier div division DPDT doublepole double throw D R drive DSB doublesideband DTL diode transistor logic DVM digital voltmeter ECL emitter cou led logic EMF electromotive force EDP electronic data processing ELECT electrolytic ENCAP encapsulated EXT external F farad...
Page 70: ...V peak working voltage RC resistance capacitance RECT rectifier REF reference REG regulated REPL replaceable RF radio frequency RFI radio frequct cy interference RH round head right hand R E resistance inductance cnpncitance RMO rack mount only rms root mcan square RND round HOM read only memory R P rack and panel RWV reverse working voltage S scattering pnramelcr s second time second plane angle ...
Page 71: ...AT1 AT2 AT3 AT4 F W u b MlnLlureSA l lmdolPoa 2x20 Cauuzot oa 2x20 ConndotPoa 2x10 Conmda Sub Mlnllum Acqubltbn Prlnled a w l krerrbly MECHANICALPARTS COMMONHARDWARE ScrsrrPamHesdM3 0X 5 T m TI0 Scrsw Fld Head M3 OX5 Ton T i 0 Sludd IUXlOmn M3 0X 5 dl 114X20mnM3 0X 5 NulHu Slngb Chunlr 5 8 32TWD NONE NONE Odor by Daer Ibn Odor by DacrMbn 0ld r by Dacrplbn order by DrcrC bn Order by Dacr bn Re lace...
Page 72: ...0 0 A 2 v m o V W Z At s 0 0 A VOQ O V O A N VRO O VOI O A 21 VOOI O V W O A ZI V W O V W C A 9 u y urn3 A wura P P N E a t Figure 6 1 Oscilloscope Replaceable Parts 6 6 Replaceable Parts ...
Page 73: ...Flgure 6 2 A1 CPU PCA Replaceable Parts 0 Figure 6 3 A2 Acquisition PCA Replaceable Parts Replaceable Parts 6 7 ...
Page 74: ...Table 6 4 Code List of Manufacturers ManufacturerName ANY SATISFACTORYSUPPLIER HEWLETT PACKARDCOMPANYCORPORATEHEAWWRTERS Address PAL0ALTO CA Zip Code 6 8 Re laceableParts ...
Page 75: ... which the content does not apply directly Since this manual does apply directly to instruments having serial numbers listed on the title page no change information is given here Refer to INSTRUMENTS COVERED BY THIS MANUAL in Chapter 1for additional important information about serial number coverage Manual Changes 7 1 ...
Page 76: ...nstrument must be made inoperative and be secured against any unintended operation If this instrument is to be energized via an autotransformer for voltage reduction make sure the common terminal is connected to neutral that is the grounded side of the mains supply Semcing instructions are for use by service trained personnel only To avoid dangerous electric shock do not perform any servicing unle...
Page 77: ...ivers Some screws in the mainframe appear to be Hex type but are not To avoid damage to the screw heads Torx screwdrivers must be used HP 8710 1284is size T 10 8 4 Troubleshooting 8 5 General Oscilloscope problems usually fall into four general categories turn on errors operator errors instrument performance out of specification and catastrophic failures The troubleshooting strategy is different f...
Page 78: ...ther Service Documents Service Notes Manual Updates and other service literature are available through Hewlett Packard For further information contact your nearest Hewlett Packard office 8 7 Visual Inspection Visually inspect the Oscilloscope for any signs of abnormal internally generated heat such as discolored printed circuit boards or components damaged insulation or evidence of arcing Determin...
Page 79: ...dividual TEST event registers to determine the malfunction Use the information provided below to help isolate the problem See Chapter 4 or 6 in the E1426A User s Manual for querying test results in the individual registers Test Failure Display RAM System RAM Non volatileRAM AcquisitionRAM Logic Trigger Analog Trigger Time Base DIA Converter AID Converter Probable Cause Action Not Applicable A1 CPU...
Page 80: ... 3 Description Power Supplies SignalConnection Visual InspectiontlmproperOperation Probable CausdAction 1 Check A1F1 through A1F6 2 Check A1PllP2 1 Check all connectors 2 Check all contacts 3 Check all cables 1 Inspect see next page 2 Verify connection 3 Verify proper operation 5 If malfunction cannot be isolated to a user replaceable component return the Oscilloscope to Hewlett Packard for repair...
Page 81: ... this chapter 2 Disconnect the 50R cable W 3 Caution Static electricity is a major cause of component failure To prevent damage to the electrical components in the Digitizing Oscilloscope observe anti static techniques whenever working on the Oscilloscope 3 Remove the 1 4 in threaded stand off from the rear center of the board 4 Remove the Tom TI0 pan head screw from the front center of the board ...
Page 82: ...C connectors then slide towards rear and remove shield TORX TI0 518 321N NUTS 6 Disconnect the following cables Two ribbon cables W 1 and W2 Disconnect the two 50 ohm cables W4 and W5 TORX TI0 TORX TI0 TORX TI0 Caution Static electricity is a major cause of component failure To prevent damage to the electrical components in the Digitizing Oscilloscope observe anti static techniques whenever workin...
Page 83: ...r 2 Remove the two Torx T10 pan head screws from the circuit side of the board 3 Lift straight up to unplug and remove the Vertical Attenuator 4 Reverse order to reinstall AT14 Vertical attenuators 5 Perform High Frequency Pulse Response A4justment see instructions in chapter 5 8 8 Service ...
Page 84: ...he A2 Acquisition PCA see instructions in this chapter 2 Unplug and mark the SMA connector 3 Remove the 5 8 32in nut 4 Slide to the rear and remove the BNC Cable Assembly 5 Reverse order to reinstall the BNC Cable Assembly 5 8 32 IN NUT ...
Page 85: ...operly grounded to prevent electrostatic discharge from damaging MOS devices Electrostatic Discharge ESD Precautions Electrostatic discharge ESD can cause damage to certain assemblies in the Oscilloscope The damage can range from slight degradation of a parameter to catastrophic failures MOS CMOS and other static sensitive devices are used in this instrument They are prone to damage from both stat...
Page 86: ...are available on an exchange basis Refer to the table and the Exchange Assemblies paragraph in Chapter 6 for further information Limited Repair Assemblies Repair of non exchange assemblies is limited to replacement of selected parts Replaceable parts fuses connectors hardware for all Oscilloscope assemblies are listed in table 6 2 Post Repair Adjustments Adjustment procedures are provided in Chapt...
Page 87: ...User s Manual HP E1405A User s Manual HP E1426A User s Manual HP E1426A Service Manual E1400 90005 See Sales and SupportOffices listed in the back of thismanual E1405 90001 See Sales and SupportOffices listed in the back of thismanual E1426 97002 See Sales and SupportOffices listed in the back of thismanual E1426 97003 See Sales and SupportOffices listed in the back of this manual References A 1 ...
Page 88: ...HEWLETTa PACKARO Hewlett Packard Printed in the USA ...
Page 89: ...quipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentation Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate representative or authorized distributor for any manufacturer listed herein We re here to make your life easier How...
