One Point Repair Guide; Booting When You Turn The Unit On, No Message Or "Hello" On Front Panel - LG SP8YA Service Manual

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 LED doesn't work.
1-1. IC604 System 12 VA (No 12 VA)
1-1-1. Solution
Replace AMP board.
1-1-2. How to troubleshoot (Countermeasure)
1) Please check 25 VA of IC604 pin2(VIN).
2) If 25 VA is abnormal, please check adapter.
3) If 25 VA is OK, but 12 VA is abnormal pin3 of IC604 (VOUT), replace AMP board.
1-1-3. Service hint (Any picture / Remark)

ONE POINT REPAIR GUIDE

< AMP board top view >
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IC604 IC604
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L611 L611
IC604 IC604
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