Pole Position
I had a similar problem with mine. I ended up,
1: I Reseated all of the IC chips, cleaned the pins. And cleaned the edge connectors on the boards with Scotch Brite pad.
Recapped the ARII boards using Bob Roberts Kit.
2: I ran 16ga wire from the ARII boards to the 2 main boards. For the ground and the
5 volts. There are male spade connectos on the boards for test points.
This made a big difference. The edge connector on the Atari games are notorious for loosing ground and 5 volts.
I also removed the edge connector board and plugged the 2 cables directly into the boards.
After running the wire with the soldered on female spade connectors, I have not had a problam with the game.
I also added a 12 volt fan at the far end of the cage by the coin door to blow air across the boards toward the back of the cabinet. I attached the fan to the cage.
Good Luck
RJ