I have multiple coils locking on on a data east lethal Weapon. They are the ball launcher, drop target coil, and left kick out, and maybe one other. It blows F7 with the two connectors (J6/J7 on the PPB) plugged in. When they are not plugged in the fuse doesn't blow. The power supply and PPB are new.
Where do I look next? The MPU and 6812?