LG SP8YA Service Manual page 38

NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR
"HELLO" ON FRONT PANEL
When you turn on your set, no message on the front panel, and LED doesn't work.
1-2. IC303 System 3.3 VA (No 3.3 VA)
1-2-1. Solution
Replace MAIN / FRONT board.
1-2-2. How to troubleshoot (Countermeasure)
1) Please check 3.3 VA of IC303 pin2.
2) If 3.3 VA is abnormal, replace MAIN board.
3) If 3.3 VA is OK, replace FRONT board.
1-2-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
IC303 IC303
 
< MAIN board top view >
 
3-5
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