I just got a "new to me" used SS pin (Flash Gordon), and I'm about to start setting it up at my place. I remember reading a website or forum thread about specific steps to take when setting up the pin so that you don't break it as you go. This covers testing certain boards and voltages in a specific order so that you know you have your bases covered before moving on to other parts of the pin (so you don't fry anything either). It was directions, but also a warning to not just plug everything in and turn it on when you get home, because you never know what happened on the trip to your place even if it worked when you bought it and broke it down to put in your car.
I can't remember if it was a Vid post here, or if it was on a separate site, but I sure can't find it again.