LG NANO 81 User Manual page 127

company's transmission signal. Please have your broadcasting services provider
(wired/cable) diagnose the problem.
If all programmes are out of sync, go to
Match Screen and Sound
If you are using a set-top box, consult its supplier.
The volume changes when I change the programme.
The volume of different broadcasting stations' transmission output may vary.
Sound Advanced Settings Automatic Volume Adjustment
Automatic Volume Adjustment
Set
If you are using a set-top box, consult its supplier.
The volume keeps changing.
Sound Advanced Settings Automatic Volume Adjustment
Automatic Volume Adjustment
Set
General
AI Sound
Switch
The sound does not work or only the background music is played in some
programmes.
(Programmes produced for export by broadcasting companies)
Set your language preference in
Troubleshooting PC Connection Issues
Troubleshooting PC Connection Issues
Run Home Dashboard
Edit Inputs in the upper right corner. In the Edit mode, set the icon of the HDMI terminal
connected to the PC to
with the PC.
If you experience any of the problems below while using the product, please check the
and adjust the sync.
AI Service AI Sound
AI Sound Pro
or to
by pressing the
PC to apply the video and aspect ratio settings that are aligned
Sound Advanced Settings
On
to .
On
to .
/ AI Sound Pro
Off
.
Audio Language .
button on the remote control. Select
127