Details: http://pinballhelp.com/before-you-turn-a-new-game-on-checking-coils/
One of the steps when you get a new machine, before turning it on, you want to go over a few things, and an important item is to find out if any coils, also known as "solenoids" are burned up. We do this by using a multimeter and checking resistance. For more info see: http://PinballHelp.com/