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No sound comes out
No sound comes out.
Check the connections for all devices. link
Insert connection cables all the way in.
Check that input connectors and output connectors are not reversely connected.
Check cables for damage.
Check that a proper input source is selected. link
Adjust the volume. link
Make sure volume is not muted. link
No sound is produced from subwoofer.
When there is an obstacle between the sound bar and the subwoofer, remove it or place the subwoofer closer to the sound bar.
Make sure the subwoofer status display LED is lit in green. If lights are not lit, it may indicate that the sound bar and subwoofer are not wirelessly connected. Perform connection again according to the following steps.
Press the 
button to turn on power to the unit.
button to turn on power to the unit.Press and hold the subwoofer BAR SYNC button for 3 seconds or more.
The subwoofer status display LED blinks once in green.
Press and hold the sound bar 
and + buttons for 5 seconds or more until the subwoofer status display LEDs blink as indicated below.
and + buttons for 5 seconds or more until the subwoofer status display LEDs blink as indicated below.The sound bar and subwoofer wirelessly connect. Perform steps 
to 
again if they do not connect.