From james_eaton@btopenworld.com Wed Jun 28 10:44:05 2006
Subject:Re: VK8M Rotary On/Off?

The PX '88 may be auto-sensing the polarity of the switch at switch on. Some keyboards do this with the sustain pedal. Try switching on whilst the pedal is depressed.
Cheers
James

> I'm trying to set my Roland VK8M module up with my Casio PX '88
piano
> that's also playing a Kurz ME1 for piano. Using a MIDI Solutions
> Mapper, which they don't make any more, but I still have the simple
> program tool for - I can get it to swap cc64 sustain to cc80 rotary
> on. Well this is weird because as soon as I turn the VK8M on:
Rotary
> is on fast all the time, except while stepping down on the sustain
> pedal which switches it back to slow only as long as I keep the
> pedal depressed. As soon as I let up, it goes back to full speed.
So
> I took the Roland sustain pedal I was using, opened it up and
> switched/resoldered the wires on the internal switch. I felt this
> was pretty clever until.. I plugged the polarity-reversed sustain
> pedal in and got exactly the same result! (Yes, I checked my
> connections again afterward :)

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