technics sx-pr51 sustain pedal

I have a technics sx-pr51 piano and the sustain pedal has quit working. I have done some research on the internet and found nothing so far in terms of replacing or fixing it. It has a stange type of end to the cord that plugs into the piano as I was looking to just replace it withsomething else but cant seem to find anything with that type of connections. I tried some changing of parts from the soft pedal- a google remedy from someone else. The wire has power all the way from the pedal to the piano(-thinking there mightbe a short in the wire) Needless to say I cant find the problem or the solution. I am at a loss as to other optionsand am wondering if you can tell me if replacement parts for this are available or something else that can be done. (just FYI- I have checked to make sure the sustain button is on on the piano itself and it is :) )Thanks for any direction anyone can give.