LG NB3532A Service Manual page 18

RECEIVER BAR ONE POINT REPAIR GUIDE
NO SOUND
1-3-2. USB Function
1-3-2-1. Solution
Replace IC301 on MAIN board.
1-3-2-2. How to troubleshoot (Countermeasure)
1) Please check IC301(Pin112, 113) USB data signal.
If you cannot find IC301 USB data signal, replace IC301.
1-3-2-3. Service hint (Any picture / Remark)
IC301
< MAIN board top view >
3-5