CHAPTER 8
TROUBLESHOOTING
65 smarttech.com/kb/171167
Resolving issues with image quality
Issue Solutions
You’re experiencing the following
or similar issues with image quality:
l There are lines or snow on
the screen.
l The image if flickering or
flashing.
l Set the connected computer’s resolution and refresh rates to values that the
display supports.
See Setting resolutions and refresh rates on page48.
l Open the on-screen display menu. If it appears correctly, the issue is with the
video input.
l Adjust the display’s image settings.
See Picture menu options on page88 for the SPNL-6055 and SPNL-6065
models or Picture menu options on page92 for the SPNL-6065-V2, SPNL-6075,
SPNL-6265-V2, SPNL-6275, SPNL-6065P, SPNL-6075P, SPNL-6265P and
SPNL-6275P models.
l Restart the display.
See Turning the display off and back on on page57.
There are dead or stuck pixels on
the screen.
See Pixel problems.
There are bright spots on the
screen.
l Open the on-screen display menu. If it appears correctly, the issue is with the
video input.
l 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 Picture menu options on page88 for the SPNL-6055 and SPNL-6065
models or Picture menu options on page92 for the SPNL-6065-V2, SPNL-6075,
SPNL-6265-V2, SPNL-6275, SPNL-6065P, SPNL-6075P, SPNL-6265P and
SPNL-6275P models.
Colors don’t appear correctly. l 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.
l When using the Multi-Window feature, be aware that each video input has its
own image settings.
l Perform a factory reset.
See Factory Reset on page91 for the SPNL-6055 and SPNL-6065 models or
Factory Reset on page94 for the SPNL-6065-V2, SPNL-6075, SPNL-6265-V2,
SPNL-6275, SPNL-6065P, SPNL-6075P, SPNL-6265P and SPNL-6275P models.
The image is cut off or shifted to the
left or right.
l Adjust any connected computers’ video settings, particularly zoom, crop and
underscan.
See the computer’s operating system documentation.
l If the computer’s desktop is entirely black, change it to dark gray or a different
color.
l 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.