Samsung UN46ES6500G E-Manual page 107

of a broadcast or movie through an
external receiver, you may hear a
sound echo caused by the difference
in decoding speed between the TV's
speakers and the speakers attached to
your audio receiver. If this occurs, set
the TV to
N
When
External
are turned off. You will hear sound
through the external speakers only.
External
Speaker Select
Speaker, the TV's speakers
Speaker.
is set to