Samsung UN50ES6100 E-Manual page 241

Sound Feedback
●
Panel Lock
Lock or unlock all the keys on the front
panel at once. When
none of the keys on the front panel
operate.
●
Boot Logo
Displays the Samsung logo when the
TV is turned on.
●
Light Effect
You can turn the LED on the TV's front
or adjust its volume.
Panel Lock
for LED 7100 and 7150 Series
is on,