LC-46D82U/LC-52D82U
4 – 17
Are the audio signal outputs
at pins (38)(L) and (39)(R) of
IC1404?
NO
Check IC1404 and its
peripheral circuits.
YES
Are the audio signal outputs
at pins (11)(L) and (14)(R) of
connector (SC1301) on the
main unit?
NO
Check the line between
IC1404 and SC1301, and
their peripheral circuits.
YES
Are the audio signal inputs at
pins (11)(L) and (14)(R) of
connector (P2704) on the
TERMINAL unit?
NO
Check the SC1301 and
P2704 connectors.
YES
Are the audio signal inputs at
pins (5)(L) and (3)(R) of
IC2701 (STEREO_AMP)?
NO
Check the line between
P2704 and IC2701, and
their peripheral circuits
(AMP_MUTE line).
YES
Is the audio output from
IC2701 as specified?
NO
Check IC2701 and its
peripheral circuits.
YES
Check the P2703 connector,
speakers and their peripheral
circuits.
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