LG SJ9 Service Manual page 68

NO POWER PROBLEM
No power problem occurs when you power on the unit.
1-2. PVDD (36 V) abnormal
1-2-1. Solution
Replace D951, IC901.
1-2-2. How to troubleshoot (Countermeasure)
Case 1) PVDD (36 V) abnormal: Check D951 and replace it.
Case 2) If case 1 is not problem: Check IC901 and replace it.
1-2-3. Service hint (Any picture / Remark)
D951 D951
ONE POINT REPAIR GUIDE
< Woofer SMPS board top view >
IC901 IC901
4-5