If you cannot enter diagnostics check your CPU board for battery (alkaline) leak and associated damage. You mentioned you sent all the boards to Chris Hibler so this is an unlikely cause given that piece of information (Chris would've verified the board prior to returning it to you). It really does sound like the problem is on your CPU board. You can also try shorting the pins for the direct switches to try to enter diagnostic mode to rule out the wires from the connectors to the switches in the coin door.
(Topic ID: 225053)
Milwaukee, WI
