External Device Connection Issues

When the TV has difficulties with external device connection, these solutions may help resolve the problem.

Problem

Possible Solutions

The TV is having trouble receiving a signal from an external set top box.

  • If there is no signal occasionally, unplug cable from TV and re-plug after 60 seconds.
  • If there is always no signal, or the signal cannot be restored after plugging and unplugging, you can press / button on your remote control and select Settings > System > HDMI & CEC > HDMI Format, to confirm whether the signal can be recognised.
  • Change to another HDMI port.
  • Change to another HDMI cable.

There is no sound.

  • Check whether ARC is selected at / > Settings > Sound > Speakers > Audio Output. If not, you need to check whether the external power amplifier device is connected to the ARC/eARC port or optical port of the TV.
  • Press / button on your remote control and select Settings > Sound > Speakers > Digital Audio Output. You can try to select PCM, Dolby Audio - Dolby Digital, or Dolby Audio - Dolby Digital.
  • Whether the power amplifier device port is connected correctly.
  • If you select HDMI as input, you can press / button on your remote control and select Settings > System > HDMI & CEC > HDMI Format to check whether format is correctly selected.