7.0
Troubleshooting Tips Cont.
Trouble
Troubleshooting Tip
Screen is blank.
Screen saver activated.
Video Cable problem. Check for proper installation
Change
video
cable
Faulty video display. Needs Service
Image is dim, even with
Video cable problem. Check for proper installation of cables
brightness and contrast
Faulty video source
controls set full UP.
Faulty display
Image not centered
Reset the horizontal and vertical positioning using the on-screen
menu. Check to see if video source is operating within the
monitor’s
range.
Image will not adjust
Video timing outside of range. Use the on-screen menu to ad
just the Clock Setting. Make sure timing is within VESA
standard.
.Image is not stable.
Monitor has incorrect or bad sync signals..
Check for proper video cable installation.
Replace
suspected
faulty
cable.
Check to ensure that video source is
operating within the display’s range.
Vertical shaded bars on
Horizontal size not properly adjusted
.
Adjust horizontal size
Screen
image
settings.
Colors are missing
Faulty video cable.
Missing from video source. Connect video source to another
display.
Screen jitter or noisy display Monitor clock phase not properly adjusted.
Video
cable
problem.
External
noise
interference.
Slight distortion in text or
Not working in native resolution.
Graphics.
Display is present but “bars” Ground loop problem between computer and display
Appear or roll across screen Interference from adjacent equipment.
The background looks
Video running interlace mode.
Acceptable but text and
Icons seem to be missing
rows of pixels
23
