LG CM9730 Service Manual page 52

Super power mini hi-fi system
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ELECTRICAL TROUBLESHOOTING GUIDE
A
IC501
Pin82, 83, 84 I2S data output
signal OK?
YES
IC501
pin 85 I2S data signal
OK?
YES
IC600
PWM data output signal
OK?
YES
B
NO
Check IC501.
NO
Check IC501.
NO
Replace IC600.
3-35

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