Performance Verification: AnalogS ection
4-14 WFM90D and WFM91D Service Manual
13. Select --10dBu from the Operating menu.
14. Check that the display amplitude is within 0.5 dB of the reference level
graticulelines.
15. Set the audio generatorfor a 50 Hz tone output, with an amplitude of
+8.0 dBu.
16. Select 8dBufrom the Operating menu.
17. Check that the display amplitude is within 0.5 dB of the reference level
graticulelines.
18. Set the audio generatorfrequency to 5 kHz.
19. Check that the display amplitude is within 0.5 dB of the reference level
graticulelines.
20. Set the audio generatorfrequency to 10 kHz.
21. Check that the display amplitude is within 0.5 dB of the reference level
graticulelines.
22. Set the audio generatorfrequency to 15 kHz.
23. Check that the display amplitude is within 0.5 dB of the reference level
graticulelines.
24. Set the audio generatorfrequency to 20 kHz.
25. Check that the display amplitude is within 0.5 dB of the reference level
graticulelines.