Troubleshooting Tips - VarTech Systems VT064C User Manual

Chassis mount series industrial crt and flat panel lcd monitors
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Troubleshooting Tips Cont.
5.0
Image is dim, even with brightness
and contrast controls set full UP.
Image not centered
Image will not adjust
Image is not stable.
Vertical shaded bars on screen im-
age
Colors are missing
Screen jitter or noisy display
Slight distortion in text or Graphics. Not working in native resolution.
Display is present but "bars"
appear or roll across screen
The background looks acceptable
but text and icons seem to be
missing rows of pixels
If these tips do not solve your problem, contact VarTech Systems Customer Service support.
Video cable problem.
Check for proper installation of cables
Faulty video source
Faulty display
Reset the horizontal and vertical positioning using the
on-screen menu. Check to see if video source is
operating within the monitor's range.
Video timing outside of range. Use the on-screen menu
to ad just the Clock Setting.
Make sure timing is within VESA standard.
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.
Horizontal size not properly adjusted.
Adjust horizontal size settings.
Faulty video cable.
Missing from video source. Connect video source to
another display.
Monitor clock phase not properly adjusted.
Video cable problem
External noise interference.
Ground loop problem between computer and display
Interference from adjacent equipment.
Video running interlace mode.
16

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