following: There may be no problem with the product.
First of all, perform a General OLED Care Device Self Care Sound
Self-diagnosis for check any abnormalities in the TV.
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.
Adjust the volume with the remote control for the TV.
When using a set-top box, no sound will be produced if the volume of the set-top box is
set to 0 or mute. Set the volume to your preference with the volume button on the set-top
box remote control.
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.
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 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.
