SMART Board SBID-7275R Installation And Maintenance Manual page 52

Chapter 5
Troubleshooting
Symptom
The image on the screen is distorted.
OR
There are lines, snow or, other visual
noise on the screen.
OR
The image if flickering or flashing.
OR
The image is dim.
There is no image when using the
USB Type-C receptacle with a
computer
There are bright spots on the screen.
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.
smarttech.com/kb/171538
Troubleshooting steps
l Tap the Home button
remote control to open the Home screen. If it appears correctly, the issue is with the
video input.
Switch to a different input and then back to the first input.
l
Make sure any connected computers are on and not in an energy savings mode.
l
Restart the display and any connected computers.
l
See Turning off, turning on, and resetting the display on page 44.
Set any connected computers' resolution and refresh rate to values that the display
l
supports.
Replace the video cables that connect any computers to the display to determine if the
l
issue is with the cables.
Make sure that the computer supports Display Port Alternate Mode video via USB
l
Type-C. Look for the Display Port logo beside the USB Type-C receptacle on the
computer. If it's not there, the computer may not support Display Port Alternate Mode
video via USB Type-C.
Make sure the cable used with the USB Type-C receptacle supports Super Speed
l
(5Gbps) USB. Look for the Super Speed USB logo on the cable. If the cable doesn't
have the Super Speed USB logo, it may not have the internal wiring necessary to carry
Display Port Alternate Mode video data.
l
Tap the Home button
remote control to open the Home screen. If it appears correctly, the issue is with the
video input.
Take a photograph of the screen and send it to SMART support. If SMART support
l
determines that the issue is with the screen and the display is under warranty, you may
be eligible for a replacement.
Be aware that if two or more displays are mounted side-by-side, there could be minor
l
differences in colors across the displays. This issue is not unique to SMART products.
If the screen is completely lacking one color on the screen or the color problems occur
l
on the Home screen, see Contacting your reseller for additional support on page 56.
If you're using a VGA video input, use a different cable or connect a different source to
l
see if the issue is with the cable or input source.
Adjust any connected computers' video settings, particularly zoom, crop, and
l
underscan.
See the computer's operating system documentation.
If any connected computers' desktops are entirely black, change them to dark gray or
l
a different color.
If any connected computers' desktops are extended across multiple screens,
l
duplicate the desktops across the screens or set the display as the only screen.
Adjust any connected computers' video settings, particularly overscan.
l
See the computer's operating system documentation.
Make sure the connected computer's video connector is configured to output a
l
supported video signal. See
See Image persistence or burn in on LCD
below the screen or press the Home button
below the screen or press the Home button
No video display output from a
displays.
on the
on the
laptop.
52