Resolving Issues With Audio - Smart Technologies Board 7000 Series Installation And Maintenance Manual

Chapter 6
Troubleshooting
Issue
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.

Resolving issues with audio

Issue
You're experiencing the following or
similar issues with audio:
No sound is coming from the
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speakers.
Sound is coming from the
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speakers, but the volume is low.
The sound is distorted or
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muffled.
smarttech.com/kb/171164
Solutions
Be aware that if two or more displays are mounted side-by-side, there could be minor
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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 source to
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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 color.
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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 60.
Solutions
If you're using an external audio system, make sure it is turned on.
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Make sure the cables connecting the display to the computer are securely fastened.
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NOTES
The display's stereo 3.5 mm in connector works with the VGA input.
o
Connecting an audio cable to the display's stereo 3.5 mm out connector
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disables the internal speakers.
If you're using the display's S/PDIF out connector to connect a sound bar or
o
receiver for external speakers, see Connecting an external audio system on
page 36.
If you're using the display's stereo 3.5 mm out connector, adjust the volume on the
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display and the connected computer and make sure neither are muted.
If you're using the display's S/PDIF out connector, adjust the volume on the external
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audio system and make sure the audio system isn't muted.
Adjust the display's audio settings.
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See Audio on page 66.
If you're using the integrated speakers, set the volume for the computer and any
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running applications to 80%, and then adjust the display's volume.
OR
If you're using an external audio system, set the volume for the computer, any running
applications and the display to 80%, and then adjust the external audio system's
volume.
displays.
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