Hello. I am a first time owner of a pinball machine and have been struggling to learn everything I can. The only issue that I am currently having on the machine is the backboard gi is not working. The flashers work though. I found from another post I need to check j120 and once I located it I see that it is plugged into a black port while all the others in the machine are white and there is either a burn or a solder directly above it. I’m not sure if things to check or how to check it. Any help is greatly appreciated and please explain in simple terms because I do not know a ton about the mechanical side of these. Thank you
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