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When I connect the TV and sound bar, there is no sound

Troubleshooting

 When I connect the TV and sound bar, there is no sound


Symptom

After connecting sound bar and TV, the sound bar doesn’t sound.

Different setting methods are taken depending on the model.


 How to fix

If the TV sound doesn’t come out of the sound bar, try to set as below.    
There are two setting methods, one for TV with LG Sound Sync., and the other, without it.
 
1. With LG Sound Sync.

1) To connect through OPTICAL cable when there is LG Sound Sync.     
2) Try to reconnect the optical cable between TV and Sound Bar.     
3) Press “Select Function” button on the Sound Bar remote control and set the Input Mode as “OPTICAL”.     
4) After that, use the TV remote control and do as follows.         
MENU → SOUND → select Sound Out Speaker → LG Sound Sync. (Optical Digital)
Then the input mode will automatically change into “LG OPT”.     
5) Press the volume button and check if the sound comes out.     
6) If there is sound, then it is ok. 


2. Without LG Sound Sync.

1) To connect through OPTICAL cable when there is no LG Sound Sync.      
2) Try to reconnect the optical cable between TV and Sound Bar.      
3) Press “Select Function” button on the Sound Bar remote control and set the Input Mode as “OPTICAL”
Then the sound will come out of both TV and the sound bar.

*Required question