8-2
PL13.14ATR
AL+3.3V is not output.
Yes
Replace IC651.
No
AL+3.3V is not output.
Replace IC651.
No
Yes
Yes
No
[TYPE A]
FLOW CHART NO.7
Check if there is any leak or short-circuit on the load
circuit. Repair it if defective.
AMP+13V is not output.
FLOW CHART NO.6
Is approxi13V voltage supplied to the cathode
of D653(D655)?
Is approxi13V voltage supplied to Pin(3) of
IC651?
No
Yes
Check C654, C655, D653, D654, D655 and their
periphery circuit. Repair it if defective.
Check C654, C655, D653, D654, D655, R676, R678,
R679, R683, R684 and their periphery circuit.
Repair it if defective.
[TYPE B]
Check C654, C655, D653, D654, D655, R676, R678,
R679, R683, R684, R688, R689 and their periphery
circuit. Repair it if defective.
Is approxi10V voltage supplied to the emitter
of Q657 and Pin(3) of IC651?
Is approxi3.3V voltage supplied to the collector
of Q657?
Replace Q657.
Check if there is any leak or short-circuit on the load
circuit. Repair it if defective.
P-ON+21V is not output.
Is approxi21V voltage supplied to the
cathode of D650?
No
Yes
Check C651, C652, D650 and their periphery circuit.
Repair it if defective.
FLOW CHART NO.5