Philips 22PFL4505D/F7, Руководство по обслуживанию

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8-3 PL10.10TR
FLOW CHART NO.11
P-ON+9V is not output.
Is approxi14V voltage supplied to the
collector of Q641?
Is approxi10V voltage supplied to the
base of Q641?
No
Yes
Yes
Check D666 and their periphery circuit, and service
it if defective.
Check C1069, D643, D644 and their periphery
circuit, and service it if defective.
No
Replace Q641.
Is approxi5.8V voltage supplied to Pin(2) of
IC631?
Yes
No
Check D654, D655, R659, R682 and their periphery
circuit, and service it if defective.
AL+3.3V is not output. (P-ON+7V is outputted normally)
FLOW CHART NO.12
Replace IC631.
Is approxi14V voltage supplied to the cathode
of D643?
Yes
No
Check C1069, D643, D644 and their periphery circuit,
and service it if defective.
SP+14V is not output.
FLOW CHART NO.13
Check if there is any leak or short-circuit on the
loaded circuit, and service it if defective.
Is approxi24V voltage supplied to Pin(2) of IC201?
Yes
No
Check C632, C1065, D632, D633 and their periphery
circuit, and service it if defective.
Is the "H" signal inputted to Pin(7) of IC201?
Yes
Replace IC201.
No
Check Q202, Q203, P-ON-H1 line and their periphery
circuit, and service it if defective.
PANEL+12.5V is not output.
FLOW CHART NO.14
Is approximately -8.7V voltage supplied to the emitter
of Q210?
Is approximately -8V voltage supplied to the base of
Q210?
Yes
No
Check C636, D636, D637 and their periphery circuit,
and service it if defective.
Yes
Check D204, R241, R242 and their periphery circuit,
and service it if defective.
No
Check Q202, Q203, D203, P-ON-H1 line and their
periphery circuit, and service it if defective.
PANEL-5.6V is not output.
FLOW CHART NO.15