correctly connected. (AV IN port is available in certain models only.)
The TV sound is not synchronized with the picture, or the sound sometimes breaks
up.
If this happens on only some of the programmes, it may be caused by the broadcasting
company’s transmission signal. Please have your broadcasting services provider
(wired/cable) diagnose the problem.
If all programmes are out of sync, go to Sound Advanced Settings
Match Screen and Sound and adjust the sync.
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
Set Automatic Volume Adjustment to On.
If you are using a set-top box, consult its supplier.
The volume keeps changing.
Sound Advanced Settings Automatic Volume Adjustment
Set Automatic Volume Adjustment to On.
General AI Service AI Sound / AI Sound Pro
Switch AI Sound or AI Sound Pro to Off.
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 Audio Language.
If your remote control does not have a button, press and hold the button.
Troubleshooting PC Connection Issues
