LG SPH5B-W - B(Burnt) Protection

3-13
ONE POINT REPAIR GUIDE
11. B(BURNT) PROTECTION
11-1. Solution
Replace IC702, IC703 (AMP IC) on MAIN board.
11-2. How to troubleshoot (Countermeasure)
1) Check voltage 12 V of IC702, IC703 at pin1, if 12 V has problem no power repair guide. (STEP 2-1.)
2) If 12 V is ok, IC702, IC703 (AMP IC) on MAIN bottom board.
No display or No Sound
11-3. Service hint (Any picture / Remark)
< MAIN board bottom view >
IC703
IC703
IC702
IC702