JD-990: Changing Performances on the JD-990 via MIDI
You can select Performances on the JD-990 via MIDI by sending a program change
message on the Control Channel. The Control Channel defaults to a value of 16
from the factory. Use the following procedure to set the Control Channel:
1) Press SYSTEM SETUP.
2) Press F3 (MIDI).
3) CURSOR to "PERFORM CNTRL-CH."
4) Use the VALUE dial to set the Control Channel as desired (1-16 or OFF).