Need help please. My roadshow will not start a game. When I put it in test switch mode the start and the buy in/extra ball buttons will not register all other switches in the row work . I have tested the micro switches they worked. Traced the wire and tested them work. checked the diodes on the coin door interface board they all read between 535-565. I even changed out the switch chip on the cpu and no luck. Any idea where else to look.