8-2 FL13.8ATR
No
AMP+13V is not output.
FLOW CHART NO.6
Is approximately +13V voltage supplied to the cathode
of D653(D655)?
Ye s
Check D653, D654, D655, C654, C655 and their
periphery circuit. Repair it if defective.
Check if there is any leak or short-circuit on the load
circuit. Repair it if defective.
Check if there is any leak or short-circuit on the load
circuit. Repair it if defective.
P-ON+21V is not output.
FLOW CHART NO.5
Is approximately +21V voltage supplied to the cathode
of D650(D651)?
No
Ye s
Check D650, D651, C651, C652, C653 and their
periphery circuit. Repair it if defective.
AL+3.3V is not output.
FLOW CHART NO.7
Is approximately +13V voltage supplied to the
collector of Q656?
Is approximately +4V voltage supplied to the base of
Q656?
No
Ye s Ye s
Ye s
Is approximately +13V voltage supplied to the
emitter of Q658?
Check D653, D654, D655, C654,
C655, R690 and their periphery
circuit. Repair it if defective.
Check D662 and their periphery circuit. Repair it if
defective.
No
No
Replace Q656.
Replace Q658.
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