SMART Board 7000 series Installation And Maintenance Manual page 56

CHAPTER 6
TROUBLESHOOTING
Issue
There are bright spots on the
screen.
The image isn't clear. There are
lines, double images or other
distortions.
Colors don't appear correctly.
The image is cut off or shifted to the
left or right.
The image doesn't fill the entire
screen.
A persistent image appears on the
display.
You're experiencing other issues
with image quality, or the previous
solutions don't resolve the issue.
44 smarttech.com/kb/171164
Solutions
Open the on-screen display menu. If it appears correctly, the issue is with the
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video input.
Take a photograph of the screen and send it to SMART support. If SMART
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support determines that the issue is with the screen and the display is under
warranty, you may be eligible for a replacement.
Adjust the display's image settings.
See Display on page 51.
Be aware that if two or more displays are mounted side-by-side, there could be
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minor differences in colors across the displays. This issue is not unique to
SMART products.
If you're using a VGA video input, use a different cable or connect a different
l
source to see if the issue is with the cable or input source.
Adjust any connected computers' video settings, particularly zoom, crop and
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underscan.
See the computer's operating system documentation.
If the computer's desktop is entirely black, change it to dark gray or a different
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color.
If the computer's background is extended across multiple screens, duplicate the
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desktop across the screens or set the display as the only screen.
Adjust any connected computers' video settings, particularly overscan.
See the computer's operating system documentation.
See Image persistence or burn in on LCD
See Referring to the SMART knowledge base for additional troubleshooting
information on page 47.
displays.