After moving a Firepower, the game will boot up and go into attract mode, but won't start a game. I suspect a problem with the MPU because the two LEDs on the boards are no longer lit. If I use the diagnostic buttons, both LEDs come on, so I know they didn't burn out.
The board has undergone a lot of bullet proofing, but this symptom is new to me. Is it time for the rottendog board? New roms?