One Point Repair Guide; Power Problem (20 Va) - LG LAP240 Service Manual

1. NO POWER PROBLEM (20 VA)
No power problem occurs when you power on the unit.
1-1. Solution
Replace D951/ D952/ IC901/ Q901/ D921/ Q902/ ZD903.
1-2. How to troubleshoot (Countermeasure)
Case 1) 20 VA Voltage Abnormal: Check D951/ D952 and replace it.
Case 2) 20 VA Voltage Abnormal: Check IC901/ Q901 and replace it.
Case 2) 20 VA Voltage Abnormal: Check D921/ Q902/ ZD903 and replace it.
Case 2
1-3. Service hint (Any picture / Remark)
Case 1

ONE POINT REPAIR GUIDE

Case 2
Case 3
Case 3
< Main board top view >
Case 2
3-2
Case 1