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Performance Verification
1780R-Series Service Manual
4–7
Short Form Procedure
The Short Form Performance Check is provided for those familiar with the
complete check procedure, and the Standard Performance Check Procedure is
provided for those who need more detailed instructions.
Both forms of the performance check procedure use the same step numbers so
the short form can be used as an index to the standard form.
1. Check Power Supplies
2. Check Software Options (not required unless calibration data becomes lost
or invalid)
3. Check Calibrator Amplitude Accuracy
4. Check Volts Full Scale Accuracy
5. Check Variable Volts Full Scale Range
6. Check Voltage Cursor Accuracy
7. Check DC Output Voltage
8. Check DC Channel Matching
9. Check Noise Measurements
10. Check Input Gain Ratios
11. Check X1 Gain CH A Frequency Response
12. Check X1 Gain CH B1 Frequency Response
13. Check X1 Gain CH B2 Frequency Response
14. Check X1 Gain CH B3 Frequency Response
15. Check Auxiliary Input Frequency Response
16. Check Auxiliary Output Frequency Response
17. Check X1 Probe Frequency Response
18. Check X10 Probe Frequency Response
19. Check Lum/Chroma Gain Ratio
20. Check Filter Response and Gain
21. Check DC Restorer Operation
22. Check DC Restorer Hum Attenuation