ive messed with my sk1 once (unfinished project).. its fun (sort of

)
youll need pots, cables, solder equipment and a little patience
. youll need a wooden box to build the pots and switches and buttons. you can build them in the plastic cover from the synth/keyboard but i prefer to do this outside in a seperate box. youll need longer cables of course.
just play with connection on the mainboard, if you find an interesting connection, mark it or write it down on a piece of paper. Try to find a synth/ keyboard which runs one batteries so you wont get electric shocks!

Youre gonna need "banana things" (dont know the translation

), to find the connection.
Soldering and de-soldedering cables wont do the unit any harm (casio sk-1 in my case)
Basicly you solder a cable on one point on the mainboard, connect the other side of the cable to a pot, button, switch, fader, whatever. then connect another cable from that same pot to another point on the mainboard. Or place more switches, pots between the two points....
I dont know anything about adding more outputs and/or midi but I guess it comes down to the same. you just have to know which goes where
Good luck! Cause youll need it
