14 марта 2014 г. 5:53 пользователь "Clifford Dunn" <beatleboy07@gmail.com> написал:

> What I do hope someone can help me with is a simple problem. When I
> plug a foot pedal into the sustain port of the keyboard, it doesn't
> add any change to the signal. The only other experience I have is
> using this keyboard with Logic, Garageband, and Main Stage. The
> sustain worked like a sustain would in these programs. I wonder if
> someone could point me towards unlocking this functionality. Google
> searches aren't too helpful with this.

Typically the problem appears when you plug the pedal into an already connected MIDI keyboard (because of inversed polarity).

Try connecting the pedal first, then plug the keyboard to your PC.

Alexandre