Samsung SyncMaster XL30 - Manual (Page 13)

Adjust buttons [
]
Push the button to adjust brightness.
▼
: The screen is getting dark.
▲ : The screen is getting bright.
Power button [ ] /
Power indicator
Use this button for turning the monitor on and off. /
This light glows blue during normal operation, and blinks blue once
as the monitor saves your adjustments.
See PowerSaver described in the manual for further information regarding power saving
functions. For energy conservation, turn your monitor OFF when it is not needed, or when
leaving it unattended for long periods.
Rear
(The configuration at the back of the monitor may vary from product to product.)
DVI-D
Only digital signals can be input to this terminal. Therefore,
only connect the DVI terminal of your PC to this terminal.