3-2
ONE POINT REPAIR GUIDE
1. IF THERE IS NO SOUND OR HAVE A PROBLEM ON LCD.
1-1. IC302 (NO 12 V)
1-1-1. Solution
Replace IC302 on Main Board.
1-1-2. How to troubleshoot (Countermeasure)
1) Please, check 25 VA of IC302 pin2 (VIN).
2) If 25 VA is abnormal, check the parts (JK300, F301, F300, C301, D300). And, change the weird one.
3) If 25 VA is OK, check PWR_CTRL (R340).
If it is not high state, follow the stage 9-1 (IC100).
If it is high state, please replace IC302.
1-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
IC302
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