Quoted from Draegermeister:This happened to me a second time. I just reseated the gray Cat cable and the red/black one next to it. It's the board in the center, top right with the playfield put up. It was highly seizure inducing. That warning is no joke!
Not that I doubt this fixed it, but you may want to consider replacing the power connector on that board as it appears to be burnt (could be a shadow). It's possible you are inadvertently improving the connection on that connector when you are reseating the data connector.
Ontario, CA
