Audio Output Is Small Or No Audio Output - LG BD550 Service Manual

ONE POINT REPAIR INSTRUCTION

4. AUDIO OUTPUT IS SMALL OR NO AUDIO OUTPUT

When disc is played, audio signal is small or audio output is not.
4-1. Solution
replace ic803 on main board.
4-2. How to troubleshoot (Countermeasure)
1) Please check the ic803 on your eyes.
2) check the 1.2vrMS level of #20 pin of ic803.
if the 1.2vrMS is ok, check c806 (vBiaS).
3) if the set is still no audio output, try to change ic803.
4-3. Service hint (Any picture / Remark)
3-74
2010