Troubleshooting Sound Issues
If you experience any of the problems below while using the product, please check the following: There may be no problem with the product.
If you are using a set-top box, turn it off, and then turn it back on.
Make sure that the set-top box is correctly connected to your TV.
The screen is fine, but it does not play any sound.
Try another programme.
If you use a set-top box, there will be no sound if you have set the volume of the set-top box or your TV to 0 or enabled Mute. Set the volume to an appropriate level.
SettingsSettings All Settings iconAll Settings icon Sound Sound Out
Set the Sound Out to Optical Out Device + TV Speaker or Use TV Speaker, and then check it once again. If you can hear the sound without any problem, check the connection with external speakers such as sound bar and the settings of the external speakers.
There is no sound coming from one of the speakers.
SettingsSettings All Settings iconAll Settings icon Sound Advanced Settings Balance
Adjust the balance as necessary with the Navigation button in Balance.
When you are connecting to the AV IN, check if the audio left/right (white/red) cables are 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 SettingsSettings All Settings iconAll Settings icon 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.
SettingsSettings All Settings iconAll Settings icon 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.
SettingsSettings All Settings iconAll Settings icon Sound Advanced Settings Automatic Volume Adjustment
Set Automatic Volume Adjustment to On.
The sound does not work or only the background music is played in some programmes.
(Programmes produced for export by broadcasting companies)
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