One day I had to fix the television model LG 15Q9AG with audio damage.
The symptoms are:
- When the temperature of the engine warmed up, the audio comes out the stronger and the volume does not work
- There are times when no audio out.
If you've replaced the IC but the audio is still experiencing the same symptoms, then you must install resistors on the IC working voltage of 100 ohms to 220 ohms.
Looks very easy, is not .. Actually if you have never experienced repair damage like this, will not be as easy as it seems. That's why experience is the best teacher for us and most expensive things that are not easy to find.