To use both screens in 103 & 104
On the small Black Box for each projector, select the "103 & 104 Combined" option
In the middle equipment rack, on the small Extron controllor, select the device you are trying to connect to
AppleTV for Apple Devices
Miracast for Windows Devices
Connect to the labeled joint device.
To use one screens in 103 & 104
On the small Black Box for each projector, select the device you are trying to connect to
AppleTV for Apple Devices
Miracast for Windows Devices
Connect to the labeled device
Turn on Microphone Receiver in the middle equipment rack, the second box from the top
Power on the microphone using the switch
Adjust volume using the mixing consol in the middle equipment rack, the knobs on the top