To make things easier, you would need a Poly800 joystick board to hook up to a EX800.
The joystick in the poly 800 has a small PCB circuit that has a few components on it and requires + and -5v supplies.
Point is, you cant just take any joystick and just plug it into an ex800.. you'll need to rob a poly for it's joystick PCB, or you'll need to recreate the PCB's circuit.
This also means the same for a poly 800. You must have that PCB in place and working.
If you lose your -5v to this PCB, then the bender/modstick wont function properly.. it may halfway work though..
My original joystick is giving me some issues.. but it's mechanical.
The union shafts to the pots are slipping internally.
It can also turn/slip and catch.. thus holding a pitch bend down or a mod up/down. Making it not shut off a modulation or a bend.
not much I can do about it short of taking the entire thing apart, desolder the pot, pull it off and reglue the shaft inside it.
I never did like the joystick setup. I'd rather have a wheel bender for pitch.
--- In korgpolyex@yahoogroups.com, "k9k9dog" <domgoold@...> wrote:
>
> this was the unit i suggested as a way of putting a modstick
> on a ex800. eg: doesn't stick out too much - and could offer
> extra function with the clickdown.
> it is used as a mouse on the hercules dj controller, and
> a scratch control.. i think it can also be used to send
> out midi CC.
>
> --- In korgpolyex@yahoogroups.com, Martin Ator <cyllall@> wrote:
> >
> > It's probably not an easy job do, as I found out myself when having to replace a poly-800 joystick.I used the original pots. The potentiometers have a centre position that I think bypasses the pot. If the stick isn't centreing properly it can cause drifting.The pots themselves are very good quality and would probably just need a clean. Scratchiness shouldn't be much of a problem as the pot doesn't really effect the audio it's just a control signal I believe.
> >
> > The switch on the playstation style stick you linked could be used to bypass the pots so that if you want joystick control you would press down and hold but do the pots on it go 10k-0k-10k or just 0k-5k-0k?
> >
>