The soundbar doesn't output the TV sound or doesn't turn on when the TV is turned on

Control for HDMI function may be set to OFF on the Sound Bar.
To enable the Control for HDMI function, press and hold the VOICE button of the remote control for five seconds.

NOTE: Check the status of the USB indicator as follows:

• When the Control for HDMI function is on, the USB indicator flashes twice.
• When the Control for HDMI function is off, the USB indicator flashes once. 

If the above steps do not work, reset the system of the Sound Bar.

• For HT-S200F/SF200/SF201
  Press and hold the （power) and the - (volume) button of the Bar Speaker at the same time for more than five seconds.
• For HT-S100F/SF150
  Press and hold the (power), the (input select), and the + (volume) button of the Bar Speaker at the same time for more than five seconds.
   

For details, refer to the manual of the product.