Dell S2721D, Руководство пользователя

Страница: 73 / 77

Troubleshooting
│
73
Product specific problems
Image retention
from a static
image left on the
monitor for a long
period of time Faint shadow
from the static
image displayed
appears on the
screen • Use the Power Management feature
to turn Off the monitor at all times
when not in use (for more information,
see
Power management modes ).
• Alternatively, use a dynamically
changing screensaver.
Common
symptoms
What you
experience
Possible solutions
Screen image is too
small Image is centered
on screen, but
does not fill entire
viewing area • Check the Aspect Ratio setting in the
Display menu OSD.
• Reset the monitor to factory settings.
Cannot adjust the
monitor with the
buttons on the
front panel OSD does not
appear on the
screen • Turn Off the monitor, unplug the power
cord, plug it back, and then turn On
the monitor.
• The OSD menu may be locked. Press
and hold the Menu/function button
next to the Power button for 4
seconds to unlock (for more
information, see
Lock ).
No Input Signal
when user controls
are pressed No picture, the
LED light is white • Check the signal source. Ensure 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.
The picture does
not fill the entire
screen The picture cannot
fill the height or
width of the screen • Due to different video formats (aspect
ratio) of DVDs, the monitor may display
in full screen.
• Run the built-in diagnostics.