Agilent Technologies 6622A Service Manual page 8

Table
3-1 Test Equipment Required for Verification .........................................................................................................3-2
3-2 Low Range Voltage and Current Values .........................................................................................................3-5
3-3 High Range Voltage and Current Values .........................................................................................................3-6
3-4 Performance Test Record for 40WLV/80WLV Outputs .......................................................................................3-16
3-5 Performance Test Record for 40WHV/80WHV Outputs ....................................................................................3-17
4-1 Test Equipment Required for Troubleshooting
4-2 Fuses ..........................................................................................................................................................4-6
4-3 Tests Performed at Power-On ..........................................................................................................................4-9
4-4 Power-On Self Test Error Messages ...............................................................................................................4-10
4-5 ERROR Codes and Messages .........................................................................................................................4-11
4-6 GPIB Board S.A. Test No. 1 ...........................................................................................................................4-20
4-7 GPIB Board S.A. Test No. 2 ...........................................................................................................................4-21
4-8 GPIB Board S.A. Test No. 3 ...........................................................................................................................4-22
4-9 GPIB Board S.A. Test No. 4 ...........................................................................................................................4-23
4-10 GPIB Board S.A. Test No. 5 ...........................................................................................................................4-24
4-11 GPIB Board S.A. Test No. 6 ...........................................................................................................................4-25
4-12 GPIB Board S.A. Test No. 7 ...........................................................................................................................4-26
4-13 GPIB Board S.A. Test No. 8 ...........................................................................................................................4-27
4-14 Keyboard Signal Paths .................................................................................................................................4-29
4-15 Microcomputer (U312) Signal Measurements During the Self Exercise Routine
4-16 Signal Processor (U327) Signal Levels ..............................................................................................................4-51
4-17 Typical Power Module Voltage Levels .............................................................................................................4-54
4-18 Miscellaneous Trouble Symptoms ..................................................................................................................4-55
5-1 Output Board Configurations ........................................................................................................................5-1
5-2 Reference Designators ....................................................................................................................................5-1
5-3 Abbreviations ..............................................................................................................................................5-2
5-4 Federal Manufacturer Codes...........................................................................................................................5-3
5-5 Model 6621-6624A and 6627A Multiple Output Power Parts List ............................................................................5-4
5-6 GPIB Board Parts List .................................................................................................................................5-8
5-7 Output Board Parts List.................................................................................................................................5-10
LIST OF TABLES
.............................................................................................4-5
iv
....................................................4-49
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