Quoted from kvan99:If F5 is blowing on start up without starting a game and activating the flippers..I'd look at flipper coil's diode and then the transistor (Tip36). Here is a good thread to get you started:
https://pinside.com/pinball/forum/topic/please-help-data-east-batman-blowing-fuses
Damn...pretty much perfect answer....sounds like your coil is being energized at start up. Very typical of a bad transistor.