Hi guys,
My Fireball II has a weird sound problem. At certain designated moments, it makes a strange buzzing sound. Also, the sound during multiball is wrong. I've made a video that explains it.
As said in the video, I have replaced the MPU and the sound card with others to see if that would help. Both did not make any difference.
Does anybody have a clue what might be the problem here? I'd be very grateful for the solution!