8-2 PL22.06-A_TR
No
AMP+13V is not output.
FLOW CHART NO.6
Is approximately +13V voltage supplied to the cathode
of D655?
Ye s
Check D655, C652, R670 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 D651?
No
Ye s
Check D651, D677, C651, C658, R663 and their
periphery circuit. Repair it if defective.
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