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LIST OF TABLES
Table
Page
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
…………………………………………………………………………………4-5
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
4-7
4-8
4-9
4-10
4-11
4-12
4-13
4-14 Keyboard Signal Paths …………………………………………………………………………………………………………………4-29
4-15 Microcomputer (U312) Signal Measurements During the Self Exercise Routine …………………………………………….4-49
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
5-7
Output Board Parts List………………………………………………………………………………………………………………...5-10
iv
GPIB Board S.A. Test No. 1 …………………………………………………………………………………………………………...4-20
GPIB Board S.A. Test No. 2 …………………………………………………………………………………………………………...4-21
GPIB Board S.A. Test No. 7 …………………………………………………………………………………………………………...4-26
GPIB Board S.A. Test No. 6 …………………………………………………………………………………………………………...4-25
GPIB Board S.A. Test No. 5 …………………………………………………………………………………………………………...4-24
GPIB Board S.A. Test No. 4 …………………………………………………………………………………………………………...4-23
GPIB Board S.A. Test No. 3 …………………………………………………………………………………………………………...4-22
GPIB Board S.A. Test No. 8 …………………………………………………………………………………………………………...4-27
GPIB Board Parts List …………………………………………………………………………………………………………………5-8
Содержание 6621A
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Страница 131: ...Figure 6 1 Power Distribution Schematic sheet 1 of 2 6 5...
Страница 132: ...Figure 6 1 Power Distribution Schematic sheet 2 of 2 6 6...
Страница 135: ...Figure 6 3 Output 1 2 Board Component Location 6 9...
Страница 136: ...Figure 6 3 Output 1 2 Board Schematic Diagram sheet 1 of 4 6 10...
Страница 137: ...Figure 6 3 Output 1 2 Board Schematic Diagram sheet 2 of 4 6 11...
Страница 138: ...Figure 6 3 Output 1 2 Board Schematic Diagram sheet 3 of 4 6 12...
Страница 139: ...Figure 6 3 Output 1 2 Board Schematic Diagram sheet 4 of 4 6 13...
Страница 140: ...Figure 6 4 Output 3 4 Board Component Location 6 15...
Страница 141: ...Figure 6 4 Output 3 4 Board Schematic Diagram sheet 1 of 4 6 16...
Страница 142: ...Figure 6 4 Output 3 4 Board Schematic Diagram sheet 2 of 4 6 17...
Страница 143: ...Figure 6 4 Output 3 4 Board Schematic Diagram sheet 3 of 4 6 3 6 18...
Страница 144: ...Figure 6 4 Output 3 4 Board Schematic Diagram sheet 4 of 4 6 3 6 19...
Страница 145: ...Figure 6 5 Output 1 2 80W Board Component Location 6 21...
Страница 146: ...Figure 6 5 Output 1 2 80W Board Schematic Diagram sheet 1 of 4 6 22...
Страница 147: ...Figure 6 5 Output 1 2 80W Board Schematic Diagram sheet 2 of 4 6 23...
Страница 148: ...Figure 6 5 Output 1 2 80W Board Schematic Diagram sheet 3 of 4 6 24...
Страница 149: ...Figure 6 5 Output 1 2 80W Board Schematic Diagram sheet 4 of 4 6 25...
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