LG SP8YA - Connecting to a USB Storage Device

3-8
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< MAIN board top view >
ONE POINT REPAIR GUIDE
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 L200 of JK202.
2) If 3.3 VA is OK, please check OPT_IN signal(R257) when optical mode.
3) If signal abnormal, replace MAIN board.
2-2-3. Service hint (Any picture / Remark)
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JK202
JK202
R257
R257
L200
L200
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