Troubleshooting Tips - VarTech Systems DiamondVue VT190C User Manual

Trouble
Screen is blank.
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 image
Colors are missing
Screen jitter or noisy display
Slight distortion in text or
Graphics.
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
VT190 DiamondVue User Guide
Troubleshooting Cont.
Troubleshooting Tip
Screen saver activated.
Video Cable problem. Check for proper installation
Change video cable .
Faulty video display. Needs Service.
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
Not working in native resolution.
Ground loop problem between computer and display
Interference from adjacent equipment
Video running interlace mode.
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