Suddenly the spinning head on my Bigfoot started going bonkers.
Yesterday I turned on the game and the head was in a constant fast spin counter clockwise and would not stop until power off.
Then today he just refused to turn during a game at all, but he did reset himself at power up.
I first suspected the opto board but after taking it off and cleaning it well he still will not work during a game.
However he passes all test in test mode. Both optos register well, and the game knows his position.
He also spins fast counter clockwise in test mode but very slowly clockwise.
I have read about the C2 cap leaking on the little driver board under the playfield on the bottom left.
I did not have time to remove this board yet and check it but I did snap quick pic with my phone.
I can't see any damage to U1 from the photo, but thought I would post it up in case some of you have better eyes for this stuff.
What would you guys try first?
Photo of driver board and the opto board I cleaned up below.