Samsung SyncMaster 400MX User Manual page 170

Time
MENU → → → → ENTER → [Setup] → → → → → → → → ENTER → [Safety
Screen] → ENTER → [Pixel Shift] → → → → ENTER → [Time] → , → ENTER
Set the time interval for performing the horizontal or vertical movement, respectively.
Timer
Timer
MENU → → → → ENTER → [Setup] → → → → → → → → ENTER → [Safety
Screen] → → ENTER → [Timer] → ENTER → [Timer] → , → ENTER
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.
1. Off
2. On
Mode
MENU → → → → ENTER → [Setup] → → → → → → → → ENTER → [Safety
Screen] → → ENTER → [Timer] → → ENTER → [Mode] → , → ENTER
You can change the Safety Screen Type.
1. Scroll
Adjusting the LCD Display