Philips 42PFL5704D/F7 Service Manual page 26

FLOW CHART NO.4
No TV sound
Is audio if signal outputted to Pin(8) of 1203(Tuner) on
the Main SSB?
FLOW CHART NO.5
No remote function
FLOW CHART NO.6
LED and function key poor
Yes
Yes
No
Replace 1203(Tuner).
No
Replace one good remote control unit.
8-2 A9PH1TR