HP L1940T User Manual page 44

Troubleshooting
Problem
Image appears
blurred, indistinct, or
too dark.
Image is not
centered.
"Check Signal
Cable" is displayed
on screen.
"Out of Range. Set
Monitor to 1280 x
1024 @ 60Hz" is
displayed on screen.
A–2
Possible Cause
Brightness and contrast
are too low.
Position may need
adjustment.
Monitor video cable is
disconnected.
Video resolution and/or
refresh rate are set
higher than what your
monitor supports.
Solution
Press the Auto Adjust button
on the front panel. If this
does not correct the image,
press the Menu button to
open the Basic OSD Menu,
and adjust the brightness
and contrast scales as
needed.
Press the Menu button to
access the OSD menu.
Select Image Control/
Horizontal Position or
Vertical Position to adjust the
horizontal or vertical
position of the image.
Connect the 15-pin monitor
video cable to the VGA
connector on the computer,
or, if connected, check the
DVI-D signal cable to the
DVI connector on the
computer, or the VGA to
DVI-I cable to the VGA
connector on the computer
(DVI available on select
models only). Be sure that
the computer power is off
while connecting the video
cable.
Restart your computer and
enter Safe Mode. Change
your settings to a supported
setting (see "Factory Preset
Display Modes" table in
Appendix B). Restart your
computer so that the new
settings take effect.
User Guide