Sharp LC-52D62U Service Manual page 46

LC-46D62U/LC-52D62U
No audio (1)
[Audio signal] INPUT-4 No audio (HDMI ana-
log input)
[HDMI analog input]
Is INPUT-4 selected on the input select menu
screen?
Is the audio output selected for
"VARIABLE" on the menu
screen?
Set the audio output to "FIXED".
YES
[HDMI analog input] Does the audio signal
come from pins (3) (L) and (2) (R) of input ter-
minal (J1501) to pins (59) (L) and (60) (R) of
IC1403?
(HDMI analog input)
Check the line between J1501
and IC1403, and their periph-
eral circuits.
[with HDMI connected] No audio (2)
[Audio signal] INPUT-4 No audio (HDMI con-
nected)
[Audio signal] INPUT-5 No audio (HDMI con-
nected)
[INPUT-4 input] Is INPUT-4 selected on the input
select menu screen?
[INPUT-5 input] Is INPUT-5 selected on the input
select menu screen?
NO
Is the audio output selected for
"VARIABLE" on the menu screen?
YES
Set the audio output to "FIXED".
YES
[INPUT-4] If no video appears, refer to "No exter-
nal input video (HDMI) [INPUT-4]".
[INPUT-5] If no video appears, refer to "No exter-
nal input video (HDMI) [INPUT-5]".
NO YES
Is the SII9011_MUTE line as specified?
Check Q1301, IC1303 and their
peripheral circuits
YES
Does the HDMI_SPDIF signal come from pin (70)
of IC1508 to pin (2) of IC1403 (CODEC)?
Check the line between IC1508 and
IC1403 and their peripheral circuits
NO
YES
NO
NO
6 – 11
No audio in all modes (3)