From Tristan Sent Mon, Dec 10th 2018, 03:42
Hi Brian, It looks like the Xpander would work with one of these pedals https://www.syntaur.com/Items/CVP100.html /Tristan On Sun, Dec 9th, 2018 at 6:24 PM, Brian Willoughby <xxxxxx@xxxxxxxxxxxx.xxx> wrote: > Hello all, > > I just ran into a situation where my Ensoniq Expression Pedal is not > compatible with a new USB-MIDI controller. Is there one standard for wiring a > passive expression pedal, or is there more than one? > > The Ensoniq pedal is wired with Ground on the Sleeve, Power on the Ring, and > the wiper signal on the Tip. > > The USB-MIDI controller is putting out Power on the Tip, and expecting the > signal on the Ring, but if I push the pedal to minimum then it shorts out the > power! Clearly, the two products are not compatible. > > I’m wondering whether this is common. I really only have one pedal, so > I’m not familiar with whether everything is compatible or not. > > Taking a quick look at the Oberheim Xpander Service Manual, it seems that > their Pedal inputs are not wired to provide power. They’re evidently > designed to expect the pedal to have its own source of power for CV. It seems > to be a TS jack, but at least the signal is still on the Tip. > > Brian > >