Samsung ES6710 Series E-Manual page 706

device (Cable/Sat Box, DVD, Blu-ray
etc.) connected to your TV.
The picture is good but there is no sound.
ΠSet the
Speaker
ΠIf you are using an external device,
make sure the audio cables are
connected to the correct audio input
jacks on the TV.
ΠIf you are using an external device,
Speaker Select
in the Sound
option to
menu.
TV