Well, the problem is fixed. It was NOT the Rottendog driver board.
Jonathan came down and we pulled the factory B/W driver out of my AFM, put the Rottendog in and AFM played like a champ. He had Congo in the back of his car so we hauled it in and tried the factory driver in Congo to see if it was something quirky going on with the Rottendog board. A bad data cable threw us for a few minutes and when we got that figured out and a new cable in, the flipper energized as before and we knew it wasn't the driver board.
Despite being told that it wasn't a flipper opto board, I had a feeling, so we raised the playfield and I pulled switch cable from the otpo board knowing that if the coil was grounding somewhere it would still be energized but if it were a switch issue, it would not. BAM! The flipper dropped back to its resting point and I knew it was a switch issue. Since a new CPU had been tried in the game, I was pretty confident it was the opto board and I happened to have a spare. We put it in the game and the problem was gone! Considering how many hours were put into trying to solve this problem by various people and professional techs, I feel pretty happy to be the one to figure this out for Jonathan. I'm even happier to have met Jonathan and look forward to hanging with him in the future!
Enjoy the game, bro!
