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Troubleshooting
Problems Possible Solutions
The TV is having trouble
receiving a signal in the
cable 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 to select HDMI Format if you
select HDMI as input, to confirm whether the signal can be recognized.
• Change to another HDMI port.
• Change to another HDMI cable.
There is no sound.
•
Check whether ARC is selected at > Settings > Display & Sound >
Sound > Audio Output. If not, you need to check whether the external
power amplifier device is connected to the ARC port or optical port of the
TV.
•
> Settings > Display & Sound > Sound > Advanced Settings >
Digital Audio Out. You can try to select Auto, Pass Through, PCM,
Dolby Audio - Dolby Digital, or Dolby Audio - Dolby Digital Plus.
• Whether the power amplifier device port is connected correctly.
•
If you select HDMI as input, you can try > HDMI Format.
Related information
External source connected but no picture or sound. on page 57
HDMI & CEC Issues
When HDMI & CEC is not working, these steps may help resolve the problem.
Problems Possible Solutions
HDMI & CEC does not work.
• Confirm that the device is a HDMI & CEC compatible device.
• Check if the power cable of the HDMI & CEC device is properly
connected.
• Check the cable connection of the HDMI & CEC device is secure.
•
Check HDMI & CEC feature of your TV is turned on.
> Settings > Channels & Inputs > Inputs > HDMI control
• Check HDMI & CEC feature of the connected device is turned on.
• Depending on the connected HDMI device, the HDMI & CEC control
feature may not work.
Application Issues
When some apps do not play, this may help resolve the problem.
58
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