I just bought a high speed. The game seemed to be working fine then I saw the green and black wire on the cpu board for the switches was disconnected. When I hooked it up the game now tilts when you hit a pop bumper. Ant ideas anyone? Thanks Bill By the way this wire does run to the pop bumper switch.

Thanks I will try Grumpy. The reason I put the wire back on the connector is because the schematics shows it hooked up. I also said it seemed to be working fine because I never had a High Speed and do not know exactly what it is supposed to do,sorry for the confusion on my original post.