JD-990: Using Expression with the JD-990.
In order for Expression to have an effect on a Patch, it must be assigned to
control certain parameters:
1) Press PATCH.
2) Press LFO & CTRL (F5).
3) Press CTRL 1&2 (F4).
4) CURSOR to "Source 1" and use the VALUE DIAL to select Expression.
5) CURSOR to "Dest." and use the VALUE DIAL to select the desired parameter
(Pitch, Cutoff, Level, etc.).
6) CURSOR to "Depth" and use the VALUE DIAL to set the amount of control.
Note: This must be programmed for each Patch; it cannot be assigned globally.