There are up to 22 input sources that can be assigned to any channel on the VM-3100PRO. Use the following procedure to select an input source for a channel:

1. Hold SHIFT and press SELECT for a channel.

2. Use the VALUE dial to select the "Input Source."

NOTE: The input options are: IN 01 through IN 12, DIN-L, DIN-R, and TR 01 through TR 08.