LG NP5550B - Sound in Bluetooth Mode

3-4
ONE POINT REPAIR GUIDE
3-3. Service hint (Any picture/ Remark)
3. NO SOUND IN BLUETOOTH MODE
No power problem occurs when you power on the unit.
3-1. Solution
Check and replace IC500 on main board.
3-2. How to troubleshoot (Countermeasure)
1) Check if bluetooth is in pairing state with your device.
2) Check if signal comes out from pin63 ~ 66 of IC500.
 If it doesn’t work, replace IC500.
3) Check if signal comes out from CN700 L+, L-, R-, R+.
 If it doesn’t work, replace IC700.
< Main board bottom view >
CN700
CN700
IC700
IC700
< Main board top view >
IC500
IC500