It was a nice day, so I decided to take a pinball backplane, bottom board and bring it outside and dissect the basic components there and discuss how they work.
![](http://pinballhelp.com/wp-content/uploads/backplane3-1.jpg)
It was a nice day, so I decided to take a pinball backplane, bottom board and bring it outside and dissect the basic components there and discuss how they work.