Thanks for comments on the T-Rex motor noise - I'd now say that mine sounds normal.

Well here's what was responsible for my shorted node board nine issue.

Picture was what it looked like when I removed the chin plastic. I re-soldered the connection and it seems fine now. Hardest part was reinstalling the whole mechanism. The t-nuts kept falling out of the back of the playfield. I finally just added a new screw to keep each of them down. You can't see them behind the plastic.

I've asked Stern for the wiring harness shown in the pic because it's under a lot of mechanical strain with little to no slack at all and will likely break again. I'll see what they say.

Only remaining issue is that his resting jaw position is now slightly agape which puts a dumb expression on his face. I know....first world problems...

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I might get back in the club with a premium. Was this the last run of the prem and the game will be archived? I heard it was but I would have thought they distributors would have made a big deal about it. I think there is still a build of the pro coming up

Lots of slack available. You need to remove the rest of the body to cut/replace a tie wrap or 2.

The worst damage on mine was under the right ramp.

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The wires will break. It's an issue others have had, including myself.

I just soldered a small piece of extra wire (covered with a heat shrink tube) to extend it for more slack.

It was an easy fix.

Just when I thought my LE was completed with all the mods I wanted, Lior (Art of Pinball) enticed me with his latest masterpiece. Had to have it and I am glad I got it. It reflects Lior's usual high quality and great sense of design. A great add to a great game.

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I won one... waiting for the beauty

I'll take it if you don't want it.

Who is your distributor?

I have chips on the other side, behind the supply drop.

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What does a Stern topper go for these days?

Sorry if this stuck ball issue has already been solved previously, but if not… if you have a Mezel raptor or similar, you might notice balls getting stuck underneath his hiney. Not that there’s anything wrong with that (cue Seinfeld)…

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…but a little L-bracket fits nicely on the existing post & nut to keep things moving along.

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I used this one:

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New they are now $750 MSRP, used to be $600 new.

When can you find one new?

My local disti (LSOG) has them in stock:
https://littleshopofgames.com/shop/toppers/stern-toppers/jurassic-park-topper-officially-licensed-stern-pinball-machine-product-502-7111-00/

On my Jurassic Park Pro, my top far right pop bumper randomly goes off when the ball is in play. Is does not pop when the ball is waiting to be plunged or is held by a flipper. But as soon as the ball hits anything else in the playing field, it starts popping. I know which pop bumper is causing the problem, any ideas how to get it to stop popping when the ball is in play? It’s causing problems in scenarios such as when I plunge the ball, it immediately pops, and I lose the skill shot potential. Plus other scenarios like that. Thanks for any help here.

Sounds like the spoon contact is simply gapped too close. Lift the playfield and adjust the gap in the contacts so they have a bit more space when not in use.

Just joined the jp premium club and absolutely love the game
, are there any know issues with this new run of it ?

Im more mean issues That a fella should be wary about ?

1. Some owners have reported one or more of the ball guides being tightened down a bit too much, and causing stress on the surrounding clearcoat.
2. A few folks have also indicated that some of the connectors behind the TREX head on the servo controller were not seated fully and the head became a bit flaky, so you can check those quickly to see if your have any installation problems.
3. A few folks had the TREX jaw loose a screw or two, so keep your eyes open for those screws bouncing around the playfield.
4. There is also a lively discussion about the recommended/factory/designers flipper bat alignment each time a new batch is run, so I suggest that you enjoy it as shipped at first and assume that the factory set the bats correctly. (what matters is how you like it to play)

Hi All,
My stern JP premium’s T-Rex started making a grinding noise a few days ago. El google didn’t point me to a related answer including searches across pinside. This game is not new, several years old and maybe 800 plays. It had been working great, and the TREX not notably loud until after I had the PF up to swap a light.

Any suggestions?
Up/down is fine, not noisy
I disassembled it and found nothing jammed, no wires rubbing, etc.
Here is a short video, glass off, of it moving loudly while in diagnostic mode

I would leave off the dino cover and give new meaning to T-Rex. Aka Terminator Rex.

well, to be honest, it reminds me MONDWEST (the old movie)...

My trex ramp opto STILL doesn't read every ball, but a lot more with the replaced opto. She catches the balls now though 99% of the time at least. Got my highest score without the opto working lol 350M
(I'm not a good player)

All this Trex discussion makes me SO GLAD I opted for a Pro...

DE Trex issues were enough for me....!

Does the pro not have the ramp there at all? My problem is zero trex and 100% ramp opto.

My optos work 100% perfectly.

No TRex mechanism on thr Pro!

Great. What I a was saying is that, in my case at least, my Trex is fine, she does everything correctly, I have no issues, but my opto on the ramp, apparently the same opto your pro has, doesn't work every time and was bad from the factory entirely. ie: You getting a PRO and being happy about it is awesome!, but it wouldn't have made any difference on my issues at all. Now some others seem to have issues with her, but mine is sassy and 100%. LOL I'm glad you are happy with your Pro though, that's what it's all about.

Awesome. My comment wasn't directed at you...given I didn't quote you...look through this thread....MANY more people have had TRex issues years before you were even here on Pinside.

Between entry opto gate issues, ball issues once the Trex is supposed to lock it for the MB, the Rex not brining its head up and down when it is supposed to, etc...... it ain't worth $2K to deal with all of that.

As far as your issues are concerned, yep, that shit sucks. Welcome to pinball, even NIB games act up. Had it happen with my Walking Dead Pro - dead soundboard upon opening the box.

To conclue my side of this discussion - trust me, if I'm making a comment directly to you, you'll know : ).

Sigh. You didn't quote anyone and you replied right after my post about my issue that was about my continued opto issue that mentioned the Trex ramp. I've gotten dumber having this conversation, as I'm sure you have as well. lol

10-4, understood you prefer the pro, I'm glad you prefer what you have, I prefer what I have, it's weird how that works. I'll just ignore unless I KNOW you're making a comment directly to me, as you say. Enjoy your weekend Sir. All good. My mistake.

(just a point of note, though, your reply that's obviously to me, just now, also didn't quote me, so I would have missed that if I hadn't assumed it was to me, since it was right after me and mentioned things from my post, but I digress.)

Lol. OK, so this one was to me then?because I -DO- eat milk with a fork and you did quote me, so it must be to me. I'm getting the hang of this. Thanks old timer.

Please add me to your list also.

T-Rex is fixed, back to normal.
I’m not sure what the issue was but after I disassembled most of it, added a very small amount of lubricant to the mechanisms that make the movement happen and reassembled it the noise went away. Maybe something was just jarred out of alignment.

To each their own, but I love the T-Rex. The movement and the magnetic grab really add something IMO.

I also added two spotlights to brighten up the playfield a bit using the Comet Matrix lights.

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I couldn't agree more.

The moving dino makes the game more exciting and fun to play.

The static Dino on the pro doesn't alter the rules, but it definitely changes the experience.

Yeah about $2500!

Bazinga!

Maybe it is just the angle the photo was taken but it looks like the ball could contact those spot lenses?

anyone know where the shaker settings are on JP,I can usually find it on other machines but its eluding me.T REX shaking so much Godzillas getting pissed.

Like up in the 200s of the adjustments. Shaker "maximal"

Thank You

2k extra for a moving T. rex head …. No way the pro will be just as fun. Stern is getting out of control on prices. I don’t even want to buy a new game from them because then I would be supporting the high mark up.

That's just a little hyperbolic, but certainly not a value for many. Here are features of the premium vs. pro:
- Moving ball-eating T-Rex
- Motorized raptor pin gate & ball capture
- Horizontal helicopter spinner
- Extra up-post (raptor pin)
- Mosquito amber pop caps
- Metal apron
- Raptor themed cabinet graphics (more colorful/better IMO)
- Translite with correct JP logo

A lot of nothin for 2G+.
And I prefer pro cab art.
I like the variety of Dino’s as opposed to just raptor. And contraire , the pro art is very colorful .

With the art on the premium the fiery skies pay homage to the DE JP translite, which I like (I have no idea if that was purposeful or not).

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I own a Prem and have played a PRO at a local brewery a few times... well worth the $2k for me... after playing the Prem...the Pro is just boring... IMHO

Pro v Prem is argued in threads for every single game. Neither side is likely to ever change their mind.
I have the premium and am glad I went with it, no regrets, to each their own.
The thing that I admit is interesting is when I bought the game 2 years ago, it was only a $1500 price difference, I would prob still go with the Prem today but I do understand at $2500 price difference it will give more pause to people who are deciding or on the fence.

Hey everyone, hoping for a little troubleshooting help, just received my Jurassic park premium a week or so ago. I installed a pinwoofer system and a speaker light kit, all looks and sounds beautiful! However, now the T-Rex head has stopped moving entirely and the WiFi isn’t working ? I had the insider connected all connected registered and functioning. Now it says it needs a USB WiFi adapter? I’m very much a novice when working on machines, I looked back by the t-Rex head and tried to ensure all the connections her still connected, nothing loose ect. Didn’t see anything wrong or out of the ordinary but then again I may have no idea what I’m really looking at or even looking in the right place. Anything helps! Thank you in advance!

Agreed. I “only” paid an extra $1500 but would likely pay the extra at today’s higher prices if I were buying new. The premium T-Rex and Raptor pen change the gameplay. Ball paths and potential ball trajectories are different. Both add elements of randomization of ball trajectories that change risk/reward scenarios. I played both considerably before choosing the premium and this ultimately factored heavily into my decision to go premium. These two mechs are not merely cosmetic differences. They enhance the depth of the game.