LG GWA-4161B Service Manual page 69

No audio output
Insert the audio Disc.
AUDMUTE : 'L'?
(IC121 Pin 33)
YES
DSP ROUT,LOUT signals output?
(IC201 Pin 10, 11)
YES
Do audio signals output?
(IC305 Pin1(L-CH),
Pin7(R-CH)
YES
Do audio Line
signals output? (CN271
pin 51, 54)
Normal
NO
•
Check and replace the IC121.
Audio Play : AUDMUTE 'H'.
NO
•
Check and replace the IC201.
NO
•
Check and replace the IC305.
NO
•
Check the connection of L/R OUT.
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