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Page Title:
CHART 4-1. NO Audio Troubleshooting (Sheet 9 of 25) |
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|  TM
11-5820-401-34-3/0967-LP-432-3060
4-13. TROUBLESHOOTING FLOW CHARTS. (CONT)
CHART 4-1
NO Audio Troubleshooting
(Sheet 9 of 25)
NOTES
16. With R-442/VRC set at 30.00 MHz and 41.5
MHz injected into FL3002, there should be no
error signal ftom the CRS. The meter will
remain centered.
17. This setting should force the CRS 10 output
a dc error voltage. The MM-100E will indicate
this voltage.
18. It the Time Delay Relay K3001 fails to
momentarily short the dc error signal, the
CRS can shift the local oscillator 1 MHz.
19. Since previous steps confirmed presance of
audio tone when CRS was isolated from other
stages, the local oscillator can be considered
alined. Therefore, CRS must be outputting
incorrect error
driving the local oscillator
off frequency.
4-41
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