LG LH-T7652SB Service Manual page 34

E
Check Digital Amp circuit
(IC701, IC702, IC703, IC704)
PWM IC
received correct data
stream?
Normal
PWM IC out?(IC601)
3-7
Check connection between
IC601 BCK, LRCK, ADATAO
Check the related circuit of
PWM.(Check Audio out
Pins54, 55, 58, 59, 61, 62,
67, 68, 70, 71, 74, 75