Why does my HW-E551 soundbar turn off 20 minutes after it displays “NO USB”?

Last modified : Apr 03. 2018

HW-E551 is designed to turn off automatically under the following conditions: 

 

 

D-IN Mode: If no input source is entered for 20 minutes.

 

AUX Mode:  If no cable is inserted in the jack for 20 minutes.

 

BT Mode:     If no connection is made for 20 minutes.

 

USB Mode:   If the "NO USB" or "Stop" state last for 20 minutes.

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