Samsung 4000 Series User Manual page 202

Issues
The picture is good
but there is no sound.
◀
Solutions and Explanations
●
Set the
Speaker Select
menu.
Sound
●
If you are using an external device, check the device's
audio output option (Ex. You may need to change your
cable box's audio option to HDMI if you have the box
connected to your TV using an HDMI cable.).
●
If you are using a DVI to HDMI cable, a separate audio
cable is required.
●
Reboot the connected device by reconnecting the
device's power cable.
English
option to
TV speaker
in the
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