LC-32R24B
4 – 12
No audio (4)
INPUT-4 No audio (HDMI connected)
INPUT-5 No audio (HDMI connected)
[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?
YES
NO
Is the audio output selected for “VARIABLE” on the
menu screen?
Set the audio output to “FIXED”.
[INPUT-4 input] If no video appears, refer to “No external input video
(HDMI) [INPUT-4]”.
[INPUT-5 input] If no video appears, refer to “No external input video
(HDMI) [INPUT-5]”.
YES
Is the HDMI MUTE line as specified?
YES
NO
Check Q1301, IC1302 and their peripheral circuits.
Does the audio signal come from pins (AN28) (SPOUT_LP), (AN29)
(SPOUT_RN), (AP28) (SPOUT_LN), and (AP29) (SPOUT_RP) of
IC8001 to pins (5) (SP_LP), (6) (SP_LN), (8) (SP_RN), and (9)
(SP_RP) of IC2701 (AMP)?
NO
Check the line between IC8001 and IC2701, and their
peripheral circuits. (AMP_MUTE line, etc.)
YES
Is the audio output from IC2701 as specified? NO Check IC2701 and its peripheral circuits.
YES
Check the connector (P2701), speakers and their peripheral circuits.
Leandro Palmeira
eletronicagaucho@hotmail.com
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