Samsung SyncMaster 550DX User Manual page 118

Vertical
Sets how many pixels the screen moves vertically.
Five adjustment levels: 0, 1, 2, 3, and 4.
Time
Set the time interval for performing the horizontal or vertical movement, respectively.
Timer
Timer
You can set the timer for Screen Burn Protection.
If you start the operation to erase any residual image, the operation will be performed for the
set period of time and then automatically finish.
• Off
• On
Mode
Adjusting the LCD Display