LG SP8YA Service Manual page 43

NO SOUND
2-4. USB
2-4-1. Solution
Replace MAIN board.
2-4-2. How to troubleshoot (Countermeasure)
1) Please check soldering status of USB_5 V at JK201 pin1.
2) If soldering status and USB_5 V are abnormal, replace MAIN board.
2-4-3. Service hint (Any picture / Remark)
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ONE POINT REPAIR GUIDE
< MAIN board top view >
JK201 JK201
3-10
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