Sound - LG SJ5 Service Manual

NO SOUND
2-2. OPTICAL
2-2-1. Solution
Replace MAIN board.
2-2-2. How to troubleshoot (Countermeasure)
1) Please check 3.3 VA at R209.
2) If 3.3 VA is ok, please check OPT_IN signal (C208) when OPTICAL mode.
3) If signal is abnormal, replace MAIN board.
2-2-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
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< MAIN board top view >
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R209 R209
3-9
C208 C208