They say good judgement comes from experience, and experience comes from bad judgement. I would suggest you find a local company that repairs pinball games or check craigslist for a tech. There are many things that have to go right for a good working pinball game. It also takes a working knowledge in electronics. What you have is shorted transistors that run those coils. You need to learn how to check a transistor. You need to learn how to understand schematics that tell you what wire goes where. You need an understanding of the technology and also build up your experience in what the machines do and why they do them. So the learning curve can be a bit frustration for someone new. I would say definitely get a pro in to get your game working right, then you can learn to fix problems as you go, like soldering wires and learning how to fix the flippers. Anyway that's my two cents.