I am trying to help a friend with his Boomerang. It is constantly trying to reset and never stops. I have received several tips but I wanted to put a feeler out here too. Someone said the zero switches aren't reading in the backbox but I advanced the score reals by activating the coil by hand and they all stop at zero while resetting so I do not think that is it. The score motor in the cab is arcing quite a bit and someone told me to take that out, clean it and tighten all the screws. I can do that but I assume since it is arcing, it is getting a connection and shouldn't be the issue. I got it to start a game once and not any other time.
I have posted this on a group on Facebook as well incase this sounds familiar and you are a member of that group.