8-3 PL10.5TR
FLOW CHART NO.10
P-ON+5V is not output.
FLOW CHART NO.11
Is approximately +8V voltage supplied to the
collector of Q652?
Check C659, D662 and their periphery circuit, and
service it if defective.
Ye s
No
Replace Q652.
P-ON+3.3V is not output.
FLOW CHART NO.12
Is approximately
+5V voltage supplied to the
collector of Q653(Q654)?
Is approximately
+4V voltage supplied to the
base of Q653(Q654)?
No
Ye s
Ye s
Check D666 and their periphery circuit, and service
it if defective.
Check C663, D665 and their periphery circuit, and
service it if defective.
Is approximately +6V voltage supplied to the
base of Q652?
No
Ye s
Check D664 and their periphery circuit, and service
it if defective.
No
Replace Q653(Q654).
Check if there is any leak or s
hort-circuit on the loaded
circuit, and service it if defective.
LCD+12V is not output.
Is approximately +12V voltage supplied to the
cathode of D672?
No
Ye s
Check C657, C658, D672, D673, D674 and their
periphery circuit, and service it if defective.
FLOW CHART NO.13
Check if there is
any leak or short-circuit on the loaded
circuit, and service it if defective.
P-ON+3.5V is not output.
Is approximately +3.5V voltage supplied to the
cathode of D670?
No
Ye s
Check C670, D670 and their periphery circuit, and
service it if defective.
FLOW CHART NO.14
Check if there is any leak or short-circuit on the loaded
circuit, and service it if def
ective.
AMP+24V is not output.
Is approximately +27V voltage supplied to the
cathode of D656?
No
Ye s
Check C654, D656, D657 and their periphery circuit,
and service it if defective.
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