LG FH6 Service Manual page 23

NO POWER PROBLEM
No power problem occurs when you power on the unit.
1-3. PVDD 50 VA/ 40 VA
1-3-1. Solution
Replace D981, IC931, Q921.
1-3-2. How to troubleshoot (Countermeasure)
Case 1) PVDD (50 VA/ 40 VA) abnormal: Check D981 and replace it.
Case 2) All voltage abnormal: Check IC931, Q921 and replace it.
1-3-3. Service hint (Any picture/ Remark)
CASE 2 CASE 2
CASE 1 CASE 1
ONE POINT REPAIR GUIDE
< SMPS board top view >
CASE 2 CASE 2
3-4
CASE 1 CASE 1