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External Device Connection Issues
When the TV has difficulties with external device connection, these solutions may help resolve the problem.
Problem
The TV is having trouble
receiving a signal from an
external set top box.
There is no sound.
Related information
External source connected but no picture or sound.
HDMI & CEC Issues
When HDMI & CEC is not working, these steps may help resolve the problem.
Problem
HDMI & CEC does not work.
Troubleshooting
•
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
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.
•
Check whether ARC is selected at
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
/
Sound > Speakers > Digital Audio Output. You can try to select 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 press
remote control and select
Format to check whether format is correctly selected.
on page 71
•
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.
•
Press
button on your remote control and select
/
System > HDMI & CEC > CEC 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.
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Possible Solutions
button on your remote control
/
>
/
/
Settings > System > HDMI & CEC > HDMI
Possible Solutions
Settings > Sound >
Settings >
button on your
Settings >
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