Repairing The DEAD T-Rex Mech On A JURASSIC PARK Pinball Machine That Fell Apart!

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[@mcostafernando]

Man, the T-Rex showing the ball before swallowing it is so cool!

[@gorillaau]

Someone had fun with that single-table mech, along with a few fraught moments and maybe a sleepless night or two while trying to get the thing to work.

[@ryancarboni357]

I'm very new to pinball and I learned more during your two Jurassic Park videos than I could imagine. Thank you for taking the time to make these diagnostic videos.

[@markjackson1444]

The customer is gonna be very happy with his machine now. Outstanding work as usual Ronnie.

[@lothianmcadam1]

(15:15) “pedantic” …PEDANTIC! That’s an uncharacteristically long word there, Miss Lyons; we're naught but humble pirates.

[@paulclarke7571]

You can problem solve with the best Ronnie. You fix em' right! Cheers (usually from Canada) but right now I am in Paris, France. So "tres bien"!!!

[@gdbrokeit5309]

You have helped me get better at troubleshooting, thanks

[@BrianDavis13]

Great job on this one! These pinball games really are marvels of engineering and planning. And you should definitely watch the movie again. It holds up great, and the part where the T-Rex breaks out is still one of the best scenes in film history.

[@joetripp123]

I see why this game has a good rating, looks like a fun game with some cool mechs. Great detective work on this one Ron. Two thumbs up.

[@v8nagrom]

My first pinball was a DE Jurassic Park. This brings back all the good memories. What a great game!

[@sside8]

Good job Ron! Yeah, those Data East pinballs are notorious for breaking fuse clips. I think the PPB stands for Playfield Power Board. Have a nice day! 😄

[@litz13]

Those metal clips on the fuse holders are infamous for falling apart. Very very common problem. Another hint, regarding bridge rectifiers - a lot of the games were built with MB2501 rectifiers, and you can safely replace with MB3501 rectifiers, which are 35A vs 25A. A small dab of heat sink grease before you screw it back in place on the metal backplane doesn't hurt, either. Lastly, you can put crimp connectors on these games and plug the wires onto the spade lugs instead of soldering.

[@AfterBurnerTeirusu]

This one has GREAT music. Brian L. Schmidt never dissapoints.

[@wdavem]

I love how similar these pinball machines are to what I fix professionally. So there are professional videotape cleaning machines (cleaning BetacamSP tape, 3/4" umaticSP, SVHS) that have MANY of the exact same parts 😅; although not quite 50V solenoids. I've got one that needs to be fixed for a costumer/client... and I'm on the fence if I need to convince someone to buy schematics, pull a board to send to the manufacturer or tell them to send the whole freaking (85 lb) thing off to be repaired for more then I'd ever charge (I'm just the in-house tech). Gotta give them an answer soon, I'm there tomorrow, LOL

[@LyonsArcade]

I could give you a "It's Broke" note to put on it if you want

[@wdavem]

@@LyonsArcade I forgot to write my notes for it from that day wow hmmm... "will not complete test cycle, hangs before inner cleaning web deploys, 8085 processor remains active, displays service menus and sensor status, general error 45 (or something like that, lol), cassette feed motor did something pretty strange but only once, voltage levels kind of ok (likely not), possibly noisy power supply, possible optical sensor/sensor board(!?) issue. Check micro switches, and get a frick'in scope on it cause IT'S BROKE!!!!

[@CNKayutube]

Im just glad the fluke got some love and a good cleaning !

[@damonhuffman6681]

I'm learning a lot about reading schematics thanks to you Ron. I appreciate you!!

[@marksnexus]

Awesome! Thanks for the update, been waiting for this one

[@stphinkle]

I remember playing this game at Nickel City in San Diego back in the day. Great Pinball.

[@davemcmannis9825]

"I Gotchoo Sucka!!!" Get's better every time brother.

[@AvengerII]

New Mod to the Jurassic Park pinball machine via a modchip -- just before the T-Rex breaks, his jaws move and in Joe's voice he announces, "It's BROKE!" Jurassic Park warning buzzer lights up on the screen saying, "BROKE! BROKE! BROKE!" Then, you take the machine to a pinball repair shop to fix it again!

[@macwake]

I may have spotted the other end of the cut wire - at 33:34 underneath the Yel/Blk wires theres a Yel/Gry which may or may not have a loose end

[@jeremylester6537]

Watching you play this beautiful machine is driving me crazie!

[@kh40yr]

Hilarious. Typical 90's excess display game, but it's like Fireworks in a car, , Smoke, lights, mayhem. Half of the gameplay is if you do play it in the dark,, because Spooky!. lol. Thanks Joe. T-Rex snacking on a ball bearing!!, Tough dude!.

[@NotsureOk]

Nice one🎉 Sux about that hacked wire Maybe that cooked the lights fuse say after a few days vs a few Xtra volts to the other lights vs a few less bulbs to light up

[@MarkusQu]

Cool. Need to play this one day. Why you dont use the new Fluke Meter with detachable (sp?) Display someone sent you?

[@andyemberton4671]

Just ordered a boatload of parts from PBR for a Space Odyssey I recently picked up from a guy who had it in a barn for 15+ years untouched. Those guys are awesome, really know there stuff, and very quick on the delivery.

[@gjwestonable]

Great video thank you. I remember playing this game in the arcade when it came out. Great memories thanks again.

[@endlesswanderer1753]

This was the first pinball table I ever saw. I was three and that memory has somehow stuck with me. The voice lines, the gun plunger, the T-Rex eating up the pinball. I have no idea how memories from that early can be so vivid, but they are. If I ever get financially stable enough to afford it, and can convince my husband, this is the one table I want to own. If i can get two, I want Black Hole, too. lol

[@TheRealLizardKing]

Great repair video series of the best pinball ever made. Next time though, use the smart missile :) also at 51:40 you can use the trigger to shoot the dinosaur :P

[@pinokio514]

45:47 The author’s thoughts: "What fool inserted a nail there?" After a few seconds - "Hmm .. I need a new nail!" =))) p.s. sorry for google translate =)

[@drussell_]

The reason why you are measuring 1.2 volts across the junctions of those transistors is because they are actually internally a compound configuration known as a *Darlington* transistor. This is essentially two transistors in series internally, configured this way to increase the current gain. It is essentially just like having a small _driver_ transistor integrated into the same, single package. Because it is actually _two_ transistor junctions in series, you see the approximately 0.6v from each transistor, added together as 1.2v, instead of the usual 0.5-0.7v you would expect from a single junction in a normal, single silicon diode or transistor.

[@LyonsArcade]

Thank you

[@kevinikola8003]

Great video and the music was great and I know who wrote the score. The great J.W. nice work!

[@PlumGurly]

On an electronic kit, I once blew an NPN transistor, and out of curiosity, I put a diode across the collector and base. It worked afterward.

[@scottbrady7499]

ten! nineties dinosaurs are neat. "Animals are Great," greg gutfeld

[@irieman442]

What a fast paced game! Quarter eater for sure

[@aromad5557]

The T-Rex without teeth looks more like a brontosaurus. 😂

[@graemerigg4029]

In the film 'The French Connection ' detective 'Popeye' Doyle (Gene Hackman)would keep the bad guy off balance by continually asking him 'Did you ever pick your feet in Poughkeepskie'.

[@scottgm321]

I asked the owner of the arcade I go to that has this game why his T Rex doesn't turn. He said he turned it off. 12 hours a day 5 days a week and Rex doesn't always line back up to center and then can't grab the ball which is the cool feature. Another great video! I have Rocky and Bulwinkle Data East and can use this and some of the comments for reference. Thanks.

[@TurnFullCircle]

Great stuff....cheers

[@bri.g.5105]

This one was my favorite as a kid

[@MartysRandomStuff]

That kicker that fires the ball back down at you is crazy. I guess they wanted to jump scare the player just like the movie does a few times?

[@TheRealLizardKing]

It's the raptor pit, whenever it fires it back the pinball at you is such a joy. Sometimes the ball goes with a loud SCLAK as it ricochets on the table and hits the glass and it's always so great. Props to designers for also giving few seconds of grace - if the ball drains just after the rapto pit is active, it'll just go "FREEZE" and it shoots you another one. Best table ever in my opinion.

[@PlumGurly]

I've always heard it called Poo-kip-see. That is where one of the IBM plants is. I assume that Armonk is not too far away, maybe a city over.

[@JoeyRetroRockets]

Armonk is a good hour south of Poughkeepsie. Poughkeepsie is a shithole. Armonk is not. I worked at their East Fishkill location for 13 years.

[@PlumGurly]

@@JoeyRetroRockets -- Thanks for the insights.

[@cojones8518]

45:10 pbresources' collection agency is Vinny, Knuckles, and Kneecaps Collections LLC

[@garymartin6987]

Ah yes! The Jesus clip is missing! :)

[@jmford1]

I used to play this all the time along with the Addams family one.

[@TomMannCenturia]

Poor old T-Rex needed some tlc.

[@MRMIdAS2k]

The isolated 50V on the flippers is absolutely a safety thing. UK regulations require it, so I assume it's cheaper to make them all like that instead of making a different version for the UK market.

[@Spidermwe]

Hi Joe, I’ve noticed that the machine runs display code A3.00 & game code A4.04. Last official version is DMD A5.10 and GAME A5.13 Or try the improved version DMD A6.00 and GAME A6.00

[@EGGTESTTUBE]

Still my favorite KZbin channel

[@LyonsArcade]

Thanks for watching, we appreciate it!

[@wackyworldofwindios3476]

Howdy U-ALL

[@danijelcar5184]

Dino is working great😎👍

[@grandpaseed]

That Fell Apart!

[@manudu75]

tu n'as pas mis les sous titres de ta vidéo

[@DarrinsDen2023]

Hopefully you'll see this comment: I have a Data East Jurassic Park. There are just a couple of things not working correctly . One is the left Pop Bumper but that looks like a switch needs adjusting or replacing. The one I can't figure out is the TREX. It moves side to side, up and down and will eat the ball. Sometimes though it will just keep moving left and right and won't eat the ball. If i centre the trex manually and turn off the ability for it to move left and right it will eat the ball every time. What could be the issue?

[@GrandTheftWatto]

"We have a T-Rex!"

[@Greensprings1]

… at time 33:30… near the center of the screen … behind the brass hinge it looks like a yellow and blue wire that is twisted with no wire nut… is that part of the wire that is cut above?

[@psychoween]

I have always liked the Sega version more that the later Stern, even if they eventually became the same company. 😊

[@timbober1]

The thing I miss about free play, besides not collecting quarters from people playing my game is the knocker. Very cool game, even has a picture of Newman on the playfield.

[@eDoc2020]

Hello, Newman

[@timbober1]

@@eDoc2020hello Jerry

[@wdavem]

Wow, ok, so 6 volt bulbs on an 18 volt power supply explains to me how they make those bulbs light up so bright sometimes. (lets see a comparable LED do that!) And I suppose the last thing you want is the controller to go "digital zero" in any way if it's making the PWM along with everything else it's doing... no more light bulbs! I've wondered about that for too long, thanks!

[@petermichaelgreen]

Seeing 1.2 ish on a component that looks like a transistor, my first thought would be that the transistor is actually a darlington pair.

[@drussell_]

They *are* Darlingtons. Probably something like a TIP102, and the two junctions in series *is* why you will read 1.2 volts, the approximately 0.6 volts from each of the junctions in series add together.

[@nickk6109]

That 18V to 6V pulsing sounds like a current chopper (used that for 12V into 2.7V before)

[@JacGoudsmit]

It's General Illuminiumization. 🙂

[@stphinkle]

Looks like that version could use an update to the newest firmware. I read on one of the service bulletins for the game back in the day that ROM version 5.0 and later have updates that impact the T-Rex movement and applies some fixes to improve its reliability. You may want to consider installing that ROM upgrade.

[@janderakaleroydavis]

So the kicker on the right that wasn't working, was one that when t-rex ate the ball ?

[@DavidSmith-rc7hs]

Superb vid ...

[@michaelnippert945]

What's interesting about the last action hero? Is it came out the same time as Jurassic Park. Jurassic Park was so popular not many people went and seen the Last Action Hero.

[@macdaddyns]

Great game!

[@circuittoys]

brilliant video...

[@waynegram8907]

JOE CLASSIC, What is that Flipper board called? because I'm curious why they are using transistors and logic gates to generator a flipper signal for the 50vdc flipper coil. Does anyone know why the designers used a Flipper board instead of wiring Directly to a flipper switch?

[@EsotericArctos]

All those blown fuses make it sound like maybe a power spike hit this, enough to kill the fuses, but not enough to damage the circuits. It's a bit of an odd ball though

[@mauroacosta3150]

So whats the fail on the flippers and the ball lunch ?? The flipper board?

[@drussell_]

It is in the video. It was a blown fuse.

[@MRNBricks]

Pretty cool game.

[@lileveretteyoakumiii]

Yodelayheehoo

[@MasatoKay]

❤

[@OpaqueWindow]

Omg I need this!!!!!!

[@romania_railroad_crossings]

lights almost work at 0:48

[@joeysartain6056]

Lowering the voltage at the flipper switch can aid in reduction of switch contacts getting carboned up (reducing "trash" on switch contacts)

[@gorillaau]

If I was following the video correctly, the voltage over the flipper switches is just 5v. It's not going to arc, pit or build up carbon at TTL voltages and currents.

[@eDoc2020]

@@gorillaau Exactly. In older games they'd run the 50v inductive coil directly through the switches.

[@gorillaau]

@@eDoc2020 Thanks. Inductive load is the term I couldn't think of.

[@jasonsteverson4609]

Hey Ron!!

[@williamcooper2368]

It's BROKE ❤️

[@86FxBdyCpe]

Man, there's a lot going on, make your head spin.

[@max0r4axor]

When a power supply starts tp undervolt and components still need a certain wattage to keep running they'll draw more amps to compensate to an extent. The higher amp draw is probably what blew a bunch of the fuses.

[@jussikuusela7345]

There are cases where something like that happens, but mostly, lower voltage => lower current. High power induction motors under high load can act that way, but usually the highest risk is in running them constantly in "wye" mode if they are designed for "delta". This essentially is a 43% reduction in winding voltage. They can go into a state where just about the only thing limiting winding current is resistance, and ventilation diminishes, or ceases if the motor stalls completely. Mostly the failure mode in undervoltaged devices is such that they fail to reach set limit points, (of motion, temperature, etc) either within designed time, or at all, and the affected device stays powered for prolonged periods trying to reach those. This can burn out motors or control relays for example, not due to excess current but prolonged or "infinite" operation with insufficient cooldown periods and possibly diminished ventilation.

[@carrollhinkle5082]

I'm from by God west Virginia

[@stphinkle]

My last name is Hinkle too, and I remember years ago having some cousins a long time ago on my Dad's side of the Family in West Virginia and remember traveling there as a kid.

[@Its-Broke]

Country roads, take me home

[@patrickradcliffe3837]

PPB: Playfield Power Board.

[@carloslewis8448]

Very cool game❤

[@tattmanndann]

"the roll pin was missing and they had a nail in it" OH COME ON NOW PEOPLE!

[@n3twork727]

You sound exactly like someone I played a MMO with, is this popo?

[@gregsnarke610]

I saw 👀 that video

[@therealrockstargamer]

2:45 where am I going to put a last action hero pinball machine in my tiny room

[@GeorgeZ213]

None of the lights work, but 2 of them do..... Confusing! Do none of the lights wok, or some of them?

[@GeorgeZ213]

Most of your viewers i think have been here a while. Instead of saying General Illumination, just say G I.

[@jeffo881]

we got illuminized and pookeepskied, come on people.

[@Paul-yk9uq]

Poughkeepsie = puh-kip-see. It comes from a Native American word.

[@t.c.bowling1934]

Micro farrot

[@davidhollfelder9940]

puh-KIP-see

[@steverileyretired]

Too much flashing lights

[@pinball541]

Jurassic Park is one of the few pinball machines that I prefer to play with the lights on. You can see the playfield better during gameplay.

[@Johnny-Five]

Pronouncing things lol