Product Specific Problems - Dell S2421HS Simplified Service Manual

Product specific problems

Problem What You
Experience
Screen image is Image is
too small centered on
screen, but
does not fill
entire viewing
area
Cannot adjust OSD does not
the monitor appear on the
with the screen
buttons on the
front panel
No Input Signal No picture, the
when user LED light is
controls are white
pressed
The picture The picture
does not fill the cannot fill the
entire screen height or width
of the screen
5. Trouble Shooting Instructions
Possible Solutions
• Check the Aspect Ratio setting in the Display
menu OSD.
• Reset the monitor to factory settings.
• Turn off the monitor, unplug the monitor power
cable, plug it back, and then turn on the monitor.
• Check the signal source. Ensure that the
computer is not in the power saving mode by
moving the mouse or pressing any key on the
keyboard.
• Check whether the signal cable is plugged in
properly. Re-plug the signal cable if necessary.
• Reset the computer or video player.
• Due to different video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
• Run the built-in diagnostics.