FLOW CHART NO.1
SP3801, SP3802 or CL3801 may be defective.
Check and replace these parts.
Audio is not output normally.
Are the audio signals output to Pin(1, 2, 3, 4) of CN3801?
Replace the Digital Main CBA Unit.
No
Ye s
Is approximately +13V voltage supplied to Pin(15, 16,
17, 18) of CN501?
No
Ye s
See FLO
W CHART NO
.6 <AMP+13V is not output.
[Power Supply Section]>
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