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Troubleshooting
Problem
Possible Cause Solution
Image appears blurred,
indistinct, or too dark.
Brightness and contrast are
too low.
Press the Minus button on the
monitor front panel to auto-
adjust the screen. If that
doesn’t work, press the Menu
button to open the Basic OSD
Menu, and adjust the
brightness and contrast scales
as needed.
Image is not centered.
Position may need
adjustment.
When OSD is inactive, press
(minus button) to auto-adjust
the screen image.
Press the Menu button to
access the Advanced OSD
menu. Select Image
Control/Horizontal Position or
Vertical Position to adjust the
horizontal or vertical position
of the image.
“Check Video Cable”
is displayed on screen.
Monitor video cable is
disconnected.
Connect the 15-pin monitor
video cable to the VGA
connector on the computer. Be
sure that the computer power
is off while connecting the
video cable.
“Input Signal Out of
Range” is displayed on
screen.
Video resolution and/or
refresh rate are set higher
than what your monitor
supports.
Restart your computer and
enter Windows Safe Mode by
pressing the F6 Function key
when the computer starts to
boot up. Change your settings
to a supported setting. Restart
your computer so that the new
settings take effect.
A-2 User’s Guide