Installation Guide

Troubleshooting 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 Support Additional Settings 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.
The screen is fine, but it does not play any sound.
Try another channel.
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.
Sound Sound Out
Set the Sound Out to Optical + Internal TV Speaker or Internal 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 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.
If all channels are out of sync, go to Sound Additional Settings AV
Sync Adjustment and adjust the sync.
If you are using a set-top box, consult its supplier.
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