User's Guide

CHAPTER 5
TROUBLESHOOTING
38 smarttech.com/kb/171415
There’s no sound or there’s a problem with the
sound
Symptom Troubleshooting steps
There’s no sound.
OR
There is sound, but the volume is
low.
OR
The sound is distorted or muffled.
l If you’re using an external audio system, make sure it is turned on.
l Make sure the cables connecting the display to the computer are securely
fastened.
NOTES
o
The display’s stereo 3.5 mm in connector works with the VGA input
only.
o
Connecting an audio cable to the display’s stereo 3.5 mm out connector
disables the internal speakers.
o
If you’re using the display’s S/PDIF out connector to connect a sound
bar or receiver for external speakers, see the SMARTBoard 6000S
series interactive displays installation and maintenance guide
(
smarttech.com/kb/171414).
l If you’re using the display’s stereo 3.5 mm out connector, adjust the volume on
the display and the connected computer and make sure neither are muted.
l If you’re using the display’s S/PDIF out connector, adjust the volume on the
external audio system and make sure the audio system isn’t muted.
l Adjust the display’s audio settings.
l If you’re using the integrated speakers, set the volume for the computer and any
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.
There is a whine or buzzing sound
coming from the back of the
display.
l Be aware that these sounds are normal. All displays emit some electrical noise.
Such sounds may be more noticeable with some displays than with others.
However, if you hear noise from the front of the display, further investigation is
required.
l Connect all devices to the same power outlet or power bar.