I am running into a serious problem that I cannot figure out on my own. I have a Monday night football. When you hit the left or right flipper button the flippers machine gun. They will not hold at all. I have replaced the MPU with a known working one. Same issues. I am seriously lost. The Eos switches test fine. What do I try next. Any help much appreciated. I also tested the diodes on the coils. All test good. I’m lost!

They seem to be good. I can strip them back and re solder them. But it’s weird that it’s both flippers. Not just one.

No it does not use the flipper board. As for coils I only have fl-11629 coils here. Don’t have the older data East coils. Have new stern coils here but they are only 2 lug.

No boards in the cabinet on this one. Problem fixed after a nights sleep. Found a bad diode on the flipper coil. Changed the coil and found it took out the fuse next to the flippers. Changed the fuse and good to go!