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5700A/5720A Series II
Service Manual
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3-27. Wideband AC Voltage Module Output Verification....................... 3-38
3-28. Wideband Output Accuracy at 1 kHz Test........................................... 3-39
3-29. Wideband Output Flatness Test ........................................................... 3-40
3-30. Wideband Flatness Calibration Procedure....................................... 3-41
3-31. Optional Tests ...................................................................................... 3-42
3-32. DC Voltage Load Regulation Test................................................... 3-42
3-33. DC Voltage Linearity Test............................................................... 3-43
3-34. DC Voltage Output Noise (10 Hz to 10 kHz) Test.......................... 3-43
3-35. DC Voltage Output Noise (0.1 to 10 Hz) Test................................. 3-45
3-36. AC Voltage Distortion Test ............................................................. 3-45
3-37. Wideband Distortion Testing........................................................... 3-45
3-38. AC Voltage Overshoot Test............................................................. 3-46
3-39. Minimum Use Requirements................................................................ 3-46
3-40. Determining Test Limits for Other Calibration Intervals..................... 3-48
4 Maintenance....................................................................................... 4-1
4-1. Introduction .......................................................................................... 4-3
4-2. Cleaning the Air Filter.......................................................................... 4-3
4-3. General Cleaning.................................................................................. 4-4
4-4. Cleaning PCA’s..................................................................................... 4-4
4-5. Access Procedures................................................................................ 4-4
4-6. Top and Bottom Covers................................................................... 4-4
4-7. Digital Section Cover....................................................................... 4-4
4-8. Analog Section Covers..................................................................... 4-4
4-9. Rear Panel Removal and Installation............................................... 4-4
4-10. Rear Panel Assembly Access........................................................... 4-5
4-11. Front Panel Removal and Installation.............................................. 4-6
4-12. Display Assembly Removal and Installation............................... 4-6
4-13. Keyboard Assembly Removal and Installation ........................... 4-7
4-14. Analog Assembly Removal and Installation.................................... 4-7
4-15. Digital Assembly Removal and Installation .................................... 4-9
4-16. Power Transformer Removal and Installation ................................. 4-9
4-17. Hybrid Cover Removal .................................................................... 4-9
4-18. Front/Rear Binding Post Reconfiguration............................................ 4-9
4-19. Installing a Wideband AC Module (Option -03).................................. 4-11
4-20. Clearing Ghost Images from the Control Display................................ 4-11
4-21. Replacing the Clock/Calendar Backup Battery.................................... 4-11
4-22. Using Remote Commands Reserved for Servicing.............................. 4-12
4-23. Using the ETIME Command............................................................ 4-12
5 Troubleshooting................................................................................. 5-1
5-1. Introduction .......................................................................................... 5-3
5-2. Interpreting Diagnostic Fault Codes..................................................... 5-3
5-3. Component-level Troubleshooting....................................................... 5-40
5-4. Troubleshooting the Wideband Output Assembly (A5) .................. 5-40
5-5. Troubleshooting the Wideband Oscillator Assembly (A6) ............. 5-42
5-6. Troubleshooting the Current/Hi-Res Assembly (A7)...................... 5-47
5-7. Current Section............................................................................ 5-47
5-8. Hi-Res Oscillator Section............................................................ 5-52
5-9. Troubleshooting the Switch Matrix Assembly (A8)........................ 5-54
5-10. Troubleshooting the Ohms Cal Assembly (A9)............................... 5-56
5-11. Two-wire Compensation Circuit ................................................. 5-56
5-12. Troubleshooting the Ohms Main Assembly (A10).......................... 5-57