Samsung SyncMaster XL20 - Manual (Page 31)

Menu Description Play/Stop
Brightness
You can use the on-screen menus to change the
brightness according to personal preference.
Direct Access Feature : When OSD is not on the screen,
push the [ ] button to adjust brightness.
[MENU → → → , → MENU]
Contrast
You can use the on-screen menus to change the contrast
according to personal preference.
[MENU → → , → → , → MENU]
Color