Philips 55PFL6900/F7 Service Manual page 70

[Audio Signal Section]
FLOW CHART NO.1 [TYPE A, B, D, F]
Audio is not output normally.
FLOW CHART NO.1 [TYPE C, E]
Audio is not output normally.
Yes
Yes
Yes
Yes
No
See FLOW CHART NO.6 <AMP+13V is not output.
[Power Supply Section]>
No
Replace the Digital Main CBA Unit.
No
See FLOW CHART NO.6 <AMP+13V is not output.
[Power Supply Section]>
No
Replace the Digital Main CBA Unit.
8-4 PL15.16TR