Good luck man. I have a slugfest and my card chute still doesn't "see" the cards. I rebuilt the little controller board, replaced the optos, and still no luck. I had to buy a manual since there isn't one online. I highly recommend buying one.
My problem in finishing my problem (other than time) is that the backbox wiring in my cabinet does not match the manual at all! Makes me think there was a revision somewhere along the line.