LG LHD625 - Bt Connection Error

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ONE POINT REPAIR GUIDE
6. BT CONNECTION ERROR
When you connect Wireless connection(like mobile phone, multi-room SPK, etc) through the BT,
the “BT ERROR“ message appears.
6-1. BT module
6-1-1. Solution
Replace BT module on Main chassis.
6-1-2. How to troubleshoot (Countermeasure)
1) Check your BT device. Make sure that BT function is on-state.
2) If it is OK, please check the CN201.
3) If there is soldering problem, please re-soldering pin CN201.
4) If after re-soldering problem still occurs, replace BT module.
5) If problem still occurs after change BT module, check MT1389 IC (IC500). Refer to item 2-6.
6-1-3. Service hint (Any picture / Remark)
< MAIN board top view >
CN201
CN201