Samsung 710TM, 910TM, 713BM, 913TM Owner's Manual page 39

Menu
MagicBright OSD Menu will be on screen when you press the MagicBright
button.
MagicBright™
And then you can choose one of 'Custom/Text/Internet/Entertain' modes
using [up( ) or down( )] button.
Volume
Menu
Volume When OSD is not on the screen, push the button to adjust volume.
Source
Description
Description