5700A/5720A Series II
Service Manual
xiv
2-33. Calibration to an External 10 kΩ Standard ............................................................ 2-116
2-34. Ratio Calibration, 10Ω From 100Ω ....................................................................... 2-120
2-35. Current Output Simplified Schematic .................................................................... 2-123
2-36. Current Assembly Calibration................................................................................ 2-128
2-37. Wideband Output Assembly Simplified Schematic............................................... 2-139
3-1. Accessing the Fuse................................................................................................. 3-4
3-2. Accessing the Air Filter.......................................................................................... 3-5
3-3. 732B External Calibration Connections................................................................. 3-9
3-4. 742A-1 and 742A-10k External Calibration Connections ..................................... 3-12
3-5. 220V DC Range Calibration Connections ............................................................. 3-17
3-6. Wideband Module Calibration Connection............................................................ 3-19
3-7. Overview of Verification Tests .............................................................................. 3-22
3-8. 1 Ohm and 10 Ohm Resistor Verification.............................................................. 3-26
3-9. Direct Current Accuracy Test Setup ...................................................................... 3-30
3-10. 1 MHz Low Pass Filter........................................................................................... 3-31
3-11. AC Voltage Test Setup........................................................................................... 3-32
3-12. Alternating Current Test Setup .............................................................................. 3-35
3-13. Alternating Current Test Setup2 mA and 200 µA.................................................. 3-36
3-14. Metal Film Resistor Equivalent Circuit.................................................................. 3-37
3-15. Metal Film Resistor in Test Circuit........................................................................ 3-37
3-16. Wideband Accuracy at 1 kHz Test Setup............................................................... 3-39
3-17. Wideband Flatness Test Setup ............................................................................... 3-40
3-18. DC Voltage Linearity Test ..................................................................................... 3-43
3-19. DC Voltage Output Noise Test Setup .................................................................... 3-44
3-20. Determining Other Test Limits .............................................................................. 3-49
4-1. Air Filter................................................................................................................. 4-3
4-2. Rear Panel Removal............................................................................................... 4-5
4-3. Rear Panel Assembly Access ................................................................................. 4-5
4-4. Front Panel Removal.............................................................................................. 4-6
4-5. Analog and Digital Assemblies.............................................................................. 4-8
5-1. Waveform at TP10 ................................................................................................. 5-42
5-2. Waveform at TP1 ................................................................................................... 5-43
5-3. Waveform at TP15 ................................................................................................. 5-44
5-4. Waveform at Pins 14 and 15 of U1........................................................................ 5-45
5-5. Waveform at Pin 6 of U9 ....................................................................................... 5-46
5-6. Waveform at Pin 11 of K2 ..................................................................................... 5-47
5-7. Waveform at Pin 6 of K2 ....................................................................................... 5-48
5-8. Verifying the 220 uA Range of the 220 µA/2.2 mA Amp Circuit......................... 5-48
5-9. Verifying the 2.2 mA Range of the 220 µA/2.2 mA Amp Circuit......................... 5-49
5-10. Verifying the 22 mA Range of the 22 mA/220 mA Amp Circuit.......................... 5-49
5-11. Verifying the 220 mA Range of the 22 mA/220 mA Amp Circuit........................ 5-50
5-12. Waveform at Pin 4 of U13 ..................................................................................... 5-51
5-13. Waveform at TP12 ................................................................................................. 5-52
5-14. Waveform at TP13 ................................................................................................. 5-53
5-15. Waveform at TP16 ................................................................................................. 5-54
5-16. Waveform at Pin 13 of U6 ..................................................................................... 5-56
5-17. Waveform at TP6 ................................................................................................... 5-58
5-18. Waveform at TP4, Calibrator Set to 0V ................................................................. 5-58
5-19. Waveform at TP4, Calibrator Set to 6.5V .............................................................. 5-59
5-20. Waveform at TP7 ................................................................................................... 5-59
5-21. Waveform at TP5 ................................................................................................... 5-60
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