The hard part is converting the keyboard....We want to turn something like this...
Into something like this...
Remove the screws from the case and then cut, carve, pry, unscrew, and pull the existing
electronics from the case. Be careful not to break or damage the PC-boards on the
keyboard itself. Cut the keyboard away from the plastic case. Be careful to leave enough
plastic on the sides of the keyboard to mount it to another case.Remove the screws
holding the PC-boards to the back of the keyboard. Then remove the PC-boards. Save the
screws and mounting hardware we will put the boards back on.
The keyboard is really a bunch of switches connected by a diode matrix. We need a
resistor chain so the diodes must be removed from the board and the solder pads cleaned.
The chain is made with 100 ohm 1% resistors, one for each key minus one. So if you
have 48 keys you need 47 resistors. It does not matter how many keys you have the