I just bought a Caveman and it isn't quite working yet. So far I have replaced all of the connectors in the back box, rebuilt the power supply, added the ground wires in the MPU<>driver connection, replaced the four bridges, fuse holders, and two large caps in the cabinet, and installed a Rottendog MPU.
When I have the connection between the driver board and MPU plugged in, the video section will freeze a couple seconds after booting. It will still play attract sounds. The game will not coin up or enter the test menu.
Without the connection between the driver board and MPU plugged in, the video section works great. It still will not coin up or start a game (should it?). I have a solid 5.05v going into the MPU, am not sure what else to check. Any help would be appreciated. Thanks.
Edit: The slam switch is closed, the ball roll and pendulum tilt switches are both open. The fuses test good.