Sharp LC-37D90U User Manual

LC-37D90U
6 – 14
Are the audio signal inputs at
pins (61)(L) and (62)(R) of
IC1403?
NO
Check the line between
IC8801 and IC1403, and
their peripheral circuits.
YES
Are the audio signal outputs
at pins (38)(L) and (39)(R) of
IC1403?
NO
Check IC1403 and its
peripheral circuits.
YES
Are the audio signal outputs
at pins (8)(L) and (11)(R) of
connector (SC1301) on the
main unit?
NO
Check the line between
IC1407 and SC1301, and
their peripheral circuits.
YES
Are the audio signal inputs at
pins (8)(L) and (11)(R) of con-
nector (P2704) on the IF unit?
NO
Check the SC1301 and
P2704 connectors.
YES
Are the audio signal inputs at
pins (11)(L) and (15)(R) of
IC2701 (STEREO_AMP)?
NO
Check the line between
P2704 and IC2701, and
their peripheral circuits
(MUTE circuit: Q2701 and
AMP_MUTE line).
YES
Is the audio output from
IC2701 as specified?
NO
Check IC2701 and its
peripheral circuits.
YES
Does the speaker select relay
(T2701) function?
NO
Check the SP-RELAY line
and its peripheral circuits
(Q2702 and SP-RELAY
line).
YES
Check the P2703 connector,
speakers and their peripheral
circuits.

Sharp LC-37D90U Specifications

General

Brand	Sharp
Model	LC-37D90U
Category	TV
Language	English