LG ProBeam BU50RG Owner's Manual page 26

26
(Volume Button)
Adjusts the volume level.
(Aspect Ratio)
Selects the screen size.
Shows information on the current screen.
(Mute)
Mutes all sounds.
Adjusts the brightness of the display.
(Page Up/Down)
Moves to the previous or next screen.
(Picture Mode)
Selects the Picture Mode.
(Home menu)
Activates the Launcher.
(White Balance)
Enters the White Balance menu.
(Brightness Up/Down)