Philips 32PFL2507/F8 - Page 26

8-2 PL12.6ATR
No
AMP+24V is not output.
FLOW CHART NO.6
Is approximately +24V voltage supplied to the cathode
of D653?
Ye s
Check D653, D654, 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 +21V voltage supplied to the
collector of Q656?
Is approximately +4V voltage supplied to the base of
Q656?
No
Ye s
Ye s
Check D650, D651, C651, C652, C653 and their
periphery circuit. Repair it if defective.
Check D662 and their periphery circuit. Repair it if
defective.
No
Replace Q656.