1328 – ActivBoard 100 and 300 Series connection guide
ActivBoard 300 Pro
ActivBoard 300 Standard
The amplifier must be connected as shown for full audio and interactive functionality.
NB: Only the ActivBoard 300 Pro has an amplifier or built-in speakers, however the USB input can be found in the same location on the ActivBoard 100 and 300 Standard.
You may also find the following document useful:
ActivBoard Electronics Replacement Guide