LG SJ8 - One Point Repair Guide; Booting When You Turn the Unit On, no Message or Hello on Front Panel

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ONE POINT REPAIR GUIDE
1. 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 stand-by LED doesn’t work.
1-1. IC380 (No 12 VA)
1-1-1. Solution
Replace AMP board.
1-1-2. How to troubleshoot (Countermeasure)
1) Please check 25 VA of IC380 pin2 (VIN).
2) If 25 VA is abnormal, please check adapter.
3) If 25 VA is OK, but 12 VA is abnormal pin3 of IC380 (VOUT), replace AMP board.
1-1-3. Service hint (Any picture / Remark)
< AMP board top view >
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