I have a Jurassic Park when I power it on instantly all coils fire and stay activated until Fuse F5 on the PPB blows. If I unplug PPB J7, F5 will not blow, with J7 plugged in and the flipper Board disconnected it still blows F5. I have disconnected each coil one at a time thinking maybe one of them was the culprit but no luck. I get no display and no bootup. I think there may be other issues as well, but I must fix the F5 issue 1st. The Pin is in really good shape and doesn’t appear to be hacked up at all. Looking to see if this is common or for suggestions on how to proceed. Thanks in advance!

Thank you very much for the response , that’s an interesting idea I will check into that, I will say that the coils seem to fire and then just stay fired they’re not firing repeatedly. Still trying to track down my issue.