Sharp LC-52D82U - Page 61

LC-46D82U/LC-52D82U
4 – 13
No Audio (1)
[Audio signal] INPUT-6 No audio (HDMI analog input)
[HDMI analog input]
Is INPUT-6 selected on the input select menu screen?
YES
NO
Is the audio output selected for “VARIABLE” on the menu
screen?
YES
Set the audio output to “FIXED”
[HDMI analog input]
Does the audio signal come from pins (4) (L) and (2) (R) of input termi-
nal (J1501) to pins (57) (L) and (58) (R) of IC1404?
YES
NO
[HDMI analog input]
Check the line between J1501 and IC1404, and their
peripheral circuits.
Is ther the audio signal output at pins (38) (L) and (39) (R) of IC1404?
NO
Check IC1404 and its peripheral circuits.
YES
Is there the audio signal output at pins (11) (L) and (14) (R) of connector (SC1301) on the
MAIN unit?
NO
Check the line between IC1404 and
SC1301.
YES
Is there the audio signal input at pins (11) (L) and (14) (R) of connector (P2704) on the
TERMINAL unit?
NO
Check the IC1301and P2704 connectors.
YES
Is there the audio signal input 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 circuit.
YES
Check the connector (P2703), speakers and their peripheral circuits.