LG NP8540 Service Manual page 33

IF NOT BOOTING WHEN YOU TURN ON THE SET.
3-6. IC505 (NAND Flash memory IC)
3-6-1. Solution
Replace IC505 on main board.
3-6-2. How to troubleshoot (Countermeasure)
1) Check 3.3 V of R512, R511, C5B1
2) If 3.3 V is abnormal, follow the stage 3-2-2 at the previous page.
3) When you followed above step but it doesn't work, replace the IC505.
3-6-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
IC505 IC505
< Main board top view >
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