Sharp LC-46D92U Service Manual page 63

Is there the audio signal input at pins (5) (L) and (3) (R) of IC2701 (STEREO_AMP)?
Is there the audio output from IC2701 as specified?
Check the connector (P2703), speakers and their peripheral circuits.
YES
YES
4 – 15
LC-46D92U/LC-52D92U
Check the line between P2704 and
IC2701, and their peripheral circuits
NO
(AMP_MUTE line).
Check IC2701 and its peripheral circuit.
NO