Bt Function Doesn't Work - LG FH2 Service Manual

High power speaker system

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Table of Contents

4. BT FUNCTION DOESN'T WORK

4-1. BT Module

4-1-1. Solution

Replace IC105, PN102 on MAIN board.

4-1-2. How to troubleshoot (Countermeasure)

1) Please voltage check 3.3 V of PN102 pin12.

If 3.3 V voltage doesn't come out, replace IC9.

2) Please check IC105 pin L1, L2, K1, K2, M2, P7, N7 signal and replace it.

3) Please check PN102 pin2, 3, 4, 5, 7, 9, 10 signal and replace it.

4) Check BT Module.

4-1-3. Service hint (Any picture/ Remark)

PN102

< MAIN board bottom view >

ONE POINT REPAIR GUIDE

< MAIN circuit >

< MAIN board top view >

3-8

IC105

Table of Contents

Table of Contents