LG NP8340, Service Manual, Page: 25 / 55

3-6
ONE POINT REPAIR GUIDE
5. IF NOT BOOTING WHEN YOU TURN ON THE SET. AND LED DOESN’T TURN ON.
5-1. IC804 (NO 3.6 VA)
5-1-1. Solution
Replace IC804 on MAIN board.
5-1-2. How to troubleshoot (Countermeasure)
1) Please check 5.2 VA of IC804 Pin3 (INPUT).
2) If 5.2 VA is abnormal, follow the stage 2-1 at the previous page.
3) If 5.2 VA is OK, but 3.6 VA is abnormal at the IC804 (VOUT Pin4) replace IC804.
4) When you followed above step but It doesn’t work, check the around parts (R827, R828, L807).
5-1-3. Service hint (Any picture / Remark)
< Main board top view >
IC804 IC804