I'm new here...hopefully you folks can help but an end to my first pin misery!

Name of game, manufacturer and year: Data East Jurassic Park, 1993

Did it ever work in your Possession?: Yes - Briefly.

Did You Run the Diagnostics?: Yes. No issues.

Where did the game come from?: Fellow Pinsider

Have needed MODS been done?: From what I know of, yes.

Are any aftermarket boards installed?: Lots. Rottendog MPU, Rottendog Flipper, XPin PPB, Pinsound

What was the last service you performed?: Prior to me receiving it, new turbo pop bumpers were installed and the rottendog MPU was added.

Battery Corrosion: none

LED or Incandescent lighting?: LED

Blown fuses: F5 blew during first multiball. After being replaced, at start of next game, both main flippers fired and blew the F1 & F3 fuses.

Smell:None

Obvious Past Work Performed: Boards mentioned above, a variety of coils underneath.

Do you have a Volt Meter?: Yes

Can you solder?: Yes...but it has been a long time.

Location: Long Island, NY

Issue: When the ball release coil fires, the two main flippers fire once and blow their fuses. This also happens if I go into diagnostics - it happens as soon as the DMD says the 1-800-raptors number.

Here's a video of it in action.

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Any help is hugely appreciated. thank you!

I should have mentioned...when I shot the video I had only replaced one fuse...trying to save a few for troubleshooting! If both fuses were new, both would have flipped and both would have blown.

I'll check the LEDs and report back. Are there specific transistors I should be checking, or just check all on the flipper board?

thanks so much.
-S

Thanks guys. Ended up being issues on both the PPB and the flipper board. Swapped out and all good. Could have possibly diagnosed to solve a more specific issue, but wasn't in a position to do that at the time. I appreciate the help.