Friend who runs a laundry mat has a single slot neo geo motherboard that died. He wants to put a multicade in it since he has a dual slot neo geo also. Everything works fine, (neo geo harness was suppose to match standard jamma) but we couldn't get it to coin up. I found the coin mechs are a separate plug on the old mother board. Is that right?
Anyone have an easy fix? Don't have any idea how to wire in extra wires to an existing harness and really don't want to rebuild a new harness from scratch. Sorry, I'm a noob at how the wires fit into the harness...