Museum of the Game® & International Arcade Museum® Forums

Need first pin help. I've read up a lot on these system 80 machines trying to get this to work. Power supply is good. All voltages are spot on. Displays aren't showing 0's and game won't boot up. Backbox and playfield lights work, and random sounds play intermittently. Sounds like, from what I've read, that it's the mpu. I'd like to get this running, but am not sure what I'm looking for when troubleshooting beyond the ps. There is a multigame system 80/80a mpu out there, but if it's not likely the problem, that's a lot of money into a board for nothing. I guess I'd like to know if I should proceed forward, or move on. Thank you in advance.