Museum of the Game® & International Arcade Museum® Forums

I have a namco upright PP2 Irish cab, and it has an issue with reverse steering. When steering left it goes right, and vice versa. The wiring is 100% correct, and am getting 5v to the steering opto PCB. I have 3 opto boards, all rebuilt with the new single chip on the board etc. They all present the same problem. If I reverse the left and right pins (1 & 4), it doesn't steer at all. I just got the main PCB repaired, and this issue was present straight away.

I've never had this board running before. The steering worked when the guy who fixed it, tested it. This is the namco boardset, so any ICs on the main board, which control steering, may be different to the Atari version. Has anyone ever had this issue?