LC-40/46/52/60LE835U/830U/832U/LC-60LE831U
6 – 15
•
Does not sound.
No audio (1)
INPUT-6 No audio.
INPUT-7 No audio.
INPUT-5 No audio.
Is INPUT-6 selected on the input select
menu screen?
Is INPUT-7 selected on the input select
menu screen?
Is INPUT-5 selected on the input select
menu screen?
YES
NO
YES
NO
YES
NO
Refer to “: No external input
video [INPUT-6]”.
Refer to “: No external input
video [INPUT-7]”.
Refer to “: No external input
video [INPUT-5]”.
Is the audio output selected for “VARI-
ABLE” on the menu screen?
Is the audio output selected for “VARI-
ABLE” on the menu screen?
Is the audio output selected for “VARI-
ABLE” on the menu screen?
YES
NO
YES
NO
YES
NO
Set the audio output to
“FIXED”.
Set the audio output to
“FIXED”.
Set the audio output to
“FIXED”.
Does the audio signal come from pins (8)
(L) and (7) (R) of input terminal (J510) to
pins (AL30)(L) and (AL32) (R) of IC3303
(CPU)?
Does the audio signal come from pins (3)
(L) and (2) (R) of input terminal (J510) to
pins (AL27)(L) and (AK28) (R) of IC3303
(CPU)?
Does the audio signal come from pins (13)
(L) and (12) (R) of input terminal (J510) to
pins (AK27)(L) and (AK29) (R) of IC3303
(CPU)?
YES
NO
YES
NO
YES
NO
Check the line between J510
and IC3303.
Check the line between J510
and IC3303.
Check the line between J510
and IC3303.
Does the digital audio signal come from pins (Y31/Y30/V27) (CPU_AOBK/AOLRCK/AOSDATA0) of IC3303 (CPU) to pin (8/9/7) (SP_BCLK/
SP_LRCLK/SP_DATA) of IC2701 (Audio DSP)?
YES
NO
Check the line between IC3303
and IC2701, and their periph-
eral circuits.
•
About the L/R Speakers.
Does the digital audio signal come from pins (47/43/
44/45) of IC2701 (Audio DSP) to pin (5/8/7/6) of
IC2703 (AMP for L/R)?
•
About the Subwoofer speaker.
Does the digital audio signal come from pins (47/43/
44/46) of IC2701 (Audio DSP) to pin (5/8/7/6) of
IC2702 (AMP for SW)?
NO
Check IC2701 and its peripheral circuits.
(X2701, etc.).
YES
•
About the L/R Speakers.
Is the audio output from IC2703 as specified?
•
About the Subwoofer Speaker.
IS the audio output from IC2702 as specified?
NO
•
About the L/R Speakers.
Check IC2703 and its peripheral circuits.
•
About the Subwoofer Speaker.
Check IC2702 and its peripheral circuits.
YES
•
About the L/R Speakers.
Check the connector (P2701) L/R speakers and their
peripheral circuits.
•
About the Subwoofer Speaker.
Check the connector (P2702), subwoofer speaker
and their peripheral.
