LG LHD625 - Booting When You Turn the Unit On, no Message on Front Panel

2-28
ONE POINT REPAIR GUIDE
2. NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE ON
FRONT PANEL
When you turn on your set, it will blank / no message on front panel, and stand-by led no working.
2-1. IC103 (No 3.3 VA)
2-1-1. Solution
Replace IC103 on MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Please check 3.3 VA of IC108.
2) If 3.3 VA is abnormal, please check 5.5 VA of IC103 pin1.
3) If 5.5 VA is OK, but 3.3 VA is abnormal, replace IC103.
2-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
< MAIN board bottom view >
IC108
IC108
IC103
IC103