Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2-10
NO
NO
Check connection between
IC704 BCK, LRCK, ADATAO.
YES
YES
Check Digital Amp circuit
(IC702, IC703).
YES
YES
PWM IC
received correct data
stream?
NO
Check the related circuit of
PWM.(Check Audio out
Pins 55, 59, 61, 62, 68, 71, 75).
Normal
PWM IC out?(IC704).
Normal Audio
output when disc
playback?
E
TEST END.
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