LG HCS6000A Service Manual page 39

6. AUDIO TROUBLESHOOTING
3) No SPDIF Out for ATSC
9V is supplied to IC702(8)?
Analog audio signal is output from
IC702(1, 7)?
6. AUDIO TROUBLESHOOTING
4) Check Output Jack and Surroundings
Check Q702, Q703, Q704, Q705,
JA600 and their surroundings
YES
NO
NO
3-29
Check Power Supply Part
Check IC702 and surroundings