LG FH2 - One Point Repair Guide

3-2
ONE POINT REPAIR GUIDE
1. NO POWER PROBLEM
No power problem occurs when you power on the unit.
1-1. CON4 22 VA
1-1-1. Solution
Replace F1, IC8 on SMPS board.
1-1-2. How to troubleshoot (Countermeasure)
Case 1) AC/DC OUT has no voltage (Battery’s voltage): Check F1, R6, R8 and replace it.
Case 2) CON4 22 VA Abnormal: Check IC8, Q6, D10 and replace it.
1-1-3. Service hint (Any picture/ Remark)
< SMPS circuit >
< SMPS board view >
IC8
IC8
R8
R8
R6
R6
AC/DC OUT
AC/DC OUT
D10
D10
Q6
Q6
F1
F1
Q6
Q6
D10
D10
Case 1
Case 1
R6
R6
R8
R8
IC8
IC8
Case 2
Case 2
Case 2
Case 2
Case 1
Case 1