My polysix keys don't work right. It's it's only real fault at this time, having repaired my PCB and done the battery mod/rechip all is well there.
I know you can get the brush on contact stuff, and any other number of things you can try to repair a keyboard that doesn't fully work up and down the notes. It is a contact issue (not the electronics) in my case.
I was wondering how 'easy' it would be to graft on another synths keyboard, say from a JX-8P which I've got laying around, the Polysix is more important to me so I wouldn't mind taking the JX's keyboard, modifying the electronics where needed and plugging/hacking it onto the polysix so that the (working) JX-8P keys would then play the Polysix. I could even use the aftertouch of the JX keys and rig it up somehow to the mod or some other function as an added bonus. JX keys aren't the best but they are way more solid than polysix (mine are semi weighted, not all 8P keys are).
I'm sure there must be a way, in an ideal world it would simply be a case of checking voltages/triggers from the current keybed and mapping it to the JX's keybed, but I'm not sure if any micro controllers are involved that dictate a 'matrix' of which keys are pressed and how it differes from the JX.
I also have a DX7 2, SY85 keyboard sitting around I could try if they are easier, but was thinking of breaking the 8P to make a custom rackmount from it anyway.
I'm not so concerned about the physical side of fitting the keyboard into the polysix at this time, I'll cross that bridge when/if I come to it.. for now i'm talking purely about functionality and electronics and if it sounds possible?
Any ideas are welcome.
Thanks
Paul
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