Sound In Bluetooth Mode - LG NP7550 Service Manual

3. NO SOUND IN BLUETOOTH MODE
No power problem occurs when you power on the main set.
3-1. Solution
Check and replace CN502 on main board.
3-2. How to troubleshoot (Countermeasure)
1) Check if Bluetooth module is in pairing state with your device.
2) Check connection of CN502 and Bluetooth module.
3) Check input voltage of CN502 pin10. (It should be 3.4 V)
4) If voltage is 3.4 V, replace Bluetooth module.
5) If It is still out of order, after this process, replace main board assembly.
3-3. Service hint (Any picture/ Remark)
ONE POINT REPAIR GUIDE
< Main board bottom view >
CN502 CN502
3-4