LG SKC9 Service Manual page 44

NO BOOTING WHEN YOU TURN THE UNIT ON, NO MESSAGE OR
"HELLO" ON FRONT PANEL
When you turn on your set, it will blank / no message on front panel, and stand-by LED doesn't work.
1-3. LCD System power 12 V, VCC_5V (No 12 V, VCC_5V)
1-3-1. Solution
Replace MAIN board.
1-3-2. How to troubleshoot (Countermeasure)
1) Please check CN101 12 V (pin7), VCC_5V (pin3).
2) If 12V, VCC_5V is abnormal, replace MAIN board.
3) If 12V, VCC_5V OK, replace FRONT board.
1-3-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
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CN101 CN101
< MAIN board top view >
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3-7
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