Samsung SyncMaster 520DX User Manual page 94

Use this function to set the execution period for each mode set in the timer.
Time
MENU → → → → ENTER → [Setup] → → → → → → → → ENTER → [Safety
Screen] → → ENTER → [Timer] → → → → ENTER → [Time] → , → ENTER
Within the set period of time specify a time for execution.
• Mode-Scroll : 1~5 sec
• Mode-Bar, Eraser : 10~50 sec
Scroll
MENU → → → → ENTER → [Setup] → → → → → → → → ENTER → [Safety
Screen] → → → ENTER → [Scroll]
This function prevents after-images on the screen by moving all the pixels on the LCD according to a
pattern.
Use this function when there are remaining after-images or symbols on the screen, especially when
you displayed a still image on the screen for a long time.
Bar
MENU → → → → ENTER → [Setup] → → → → → → → → ENTER → [Safety
Screen] → → → →ENTER → [Bar]
This function prevents after-images on the screen by moving long black and white vertical lines.
Adjusting the LCD Display