So I got an ion IDM02 drum machine/brain. just the module, it was cheap. the pad inputs seem to work on 1/8 in mono jacks. so i took one and hooked it up to a piezo transducer and flicked it hoping to make a sound but there was nothing from the module. the modules inside piezos for the drum machine work fine, but if i can build a really cheap practice kit out of this that would be aweseome.

am I going about this the right way? does anyone have these pads or anything that theyve taken apart?