3-6
ONE POINT REPAIR GUIDE
IF NOT BOOTING WHEN YOU TURN ON THE SET.
3-2. IC900 (NO 3.3 V)
3-2-1. Solution
Replace IC900 on main board.
3-2-2. How to troubleshoot (Countermeasure)
1) Please check 18 VA of IC900 Pin2(VIN).
2) If 18 VA is abnormal, follow the stage 1-1-2 at the previous page.
3) If 18 VA is OK, but 3.3 V is abnormal at the IC900(Pin7) replace IC900.
4) When you followed above step but it doesn’t work, check the around parts. (L900, C901, C904, C955,
C956, C957, R941, R906, R929, C934, R930, R934, R938, R939, C920, C954, C925)
3-2-3. Service hint (Any picture / Remark)
< Main board top view >
IC900
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