Sound Issues
If you experience any of the problems below while using the product, please check the following. There may not be a problem with the product.
First of all, perform a
Sound Sound Test to check for 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.



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 channel.
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Sound Sound Out
Check whether the Sound Out is set to Internal TV Speaker + Optical or Internal TV Speaker. - 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.
- There is no sound coming from one of the speakers.
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Sound Sound Mode Settings Balance
Adjust the balance as necessary with the Navigation button in Balance. - When you are connecting to the AV IN / COMPONENT IN, check if the audio left / right (white / red) cables are correctly connected. (AV IN / COMPONENT IN ports are 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 channels, it may be caused by the broadcasting company’s transmission signal. Please have your broadcasting services provider (wired / cable) diagnose the problem.
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If all channels are out of sync, go to
Sound AV Sync Adjustment and adjust the sync.
- If you are using a set-top box, consult its supplier.
- The volume changes when I change the channel.
- The volume of different broadcasting stations’ transmission output may vary.
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Sound Volume Mode Auto Volume
Set Auto Volume to On. - If you are using a set-top box, consult its supplier.
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The sound does not work or only the background music is played in some programs.
(Programs produced for export by broadcasting companies) -
Set your language preference in Audio Language.