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5–2 User’s Guide
Troubleshooting
Image appears
blurred, indistinct, or
too dark.
Brightness and contrast
are too low.
Press the Menu button to
open the OSD Menu, and
adjust the brightness and
contrast as needed.
Image is not
centered.
Image position may
need adjustment.
Press the Menu button to
access the OSD menu.
Select Image Control 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 the
monitor supports.
Restart your computer and
enter Windows Safe Mode
by pressing the F8 Function
key when the computer
starts to boot up. Change
the video resolution or
Refresh settings to a
supported value. Restart the
computer for the new
settings to take effect.
Problem Possible Cause Solution