Use the following procedure to use the sliders on the JV-80 to transmit volume messages in real time:
- Press EDIT under Performance.
- Press COMMON.
- Select ZONE Mode.
- Press the TX ZONE button.
- CURSOR to display the Transmit Volume screen.
Note: This window must be displayed to transmit volume from the sliders.
Owner's Manual: https://www.roland.com/us/support/manual_archive/