V3.1 56 Inputs megadrum pedal impedance and selector

[pilot40]

I have a problem with the pedal impedence and selector on my V3.1 jacks input board that I was hoping someone could help me with. I've just put my megadrum into a new encloure and in the process managed to damage the jacks inputs boards. I've soved this problem by 'hard wiring' the jacks to the ribbon connector from the main PCB, but I haven't managed to figure out how to connect the peda input jack. I know thai I'm going to need to make a small circuit of some time on a matrix board to fit the selector pins to, but I can't work out how to connect this to the main PCB> I was wondering if anyone has any drawing, schematics or could suggest a way to do this? Everything else is working fine, so any help would be really appreciated.