Half of the safety mat harness was missing, so I just soldered the header pins together on the safety pcb they connect to and that bypassed the safety mats. This thing has been a pain in the ass so far. I've got the safety mat problem fixed, it has emitting optos underneath around the base that are working as well. Upon power up, it says slowly turning off motors for about 5 seconds, then says: errors have occured, no motion detected, fail safe switches engaged. After that the game will boot into attract mode. Still checking all the motor drives etc. All seem to have power so far. I would ask for any help from others, but I'm starting to realize that I am on my own with this thing. The manual has schematics, but no operation flow. Does ANYONE have any operational knowledge of these things that would be willing to offer advice?