Smart Technologies LightRaise 40wi - Manual (Page 57)

Troubleshooting audio issues
If the audio isn’t working, you can troubleshoot the following common issues.
Microphone function
You might experience issues using balanced microphones with your interactive projector. Ensure you
use an unbalanced microphone. For more information, see the LightRaise 40wi microphone
connection addendum ( smarttech.com/kb/170208 ).
Speaker static
You might experience static noise from your speakers if the microphone cable is routed too close to
the other cables. For more information, see the LightRaise 40wi microphone connection addendum
( smarttech.com/kb/170208 ).
Static noise can be caused by other video and audio source devices and their connection cables.
Isolate these devices and test to see if they are the cause of static noise
Locating the serial number
The serial number identifies your projector and helps SMART support troubleshoot issues. The serial
number is on top of the projector in the location shown below:
C H A P T E R 6
Troubleshooting your interactive projector
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