LG FH6 - Page 24

3-5
ONE POINT REPAIR GUIDE
2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE ON VFD
When you turn on your set, it will blank / no message on VFD, and it will not boot-up.
2-1. IC303/ IC302 (NO 3.3 VA /1.2 VA)
2-1-1. Solution
Replace IC303 or IC302 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Please check 3.3 VA of IC303 and 1.2 VA of IC302.
2) If 3.3 VA is abnormal, please check 4.8 VA of IC303 pin3.
If 1.2 VA is abnormal, please check 5.5 VA of IC302 pin3.
3) If 4.8 VA is OK, but 3.3 VA is abnormal, change IC303.
If 5.5 VA is OK, but 1.2 VA is abnormal, change IC302.
2-1-3. Service hint (Any picture/ Remark)
< MAIN board top view > < MAIN board bottom view >
IC303
IC303
(TJ4310)
(TJ4310)
IC302
IC302
(SN1501019)
(SN1501019)