One Point Repair Guide; If There Is No Sound Or Have A Problem On Lcd - LG LAS855M Service Manual

Smart hi-fi audio wireless multi-room sound bar

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Table of Contents

1-1. IC601 (NO 12 V)

1-1-1. Solution

Replace IC601 on AMP board.

1-1-2. How to troubleshoot (Countermeasure)

1) Please, check 25 VA of IC601 pin7 (VIN).

2) If 25 VA is abnormal, check the parts (L603, F601, JK600). And change the weird one.

3) If 25 VA is OK, check PWR_CTRL (R614).

 If it is not high state, follow the stage 8-1 (IC100).

 If it is high state, please replace IC601.

1-1-3. Service hint (Any picture / Remark)

ONE POINT REPAIR GUIDE

< AMP board top view >

2-2

IC601

Table of Contents

Table of Contents