SMART SBID-7286, Installation And Maintenance Manual, Page: 56 / 78

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