Make sure the solenoid fuse is not oversized. Or don’t leave this game on when not in the room. Or you will smell a bad burning smell coming from your machine very soon.

Also, get about a 100 pack of the solenoid fuse. I think 5 amp but might be a little lower. These will blow all the time on you. At least a 100 pack might last a year as this problem will get progressively worse.

Usually this is caused by the blanking circuit not completely right. And usually this is the interconnect between the mpu and driver. Might want to talk to the guy that worked on your boards.

If you leave this game locked on and don’t catch it will burn up all kinds of stuff

Another way to fix is a rottendog MPU, but these sometimes come with problems also.