Having Trouble with my new Jurassic Park

[Geese]

I think I am getting close!

Left sling shot registers as left sling and missle
trough 2 registers as trough 2 and trough 3
trough 3 registers as trough 2 and trough 3
and the missle registers as left sling shot and missle

All the other switches seem good.

Yes you are getting close, but it seems that the origonal problem is still there.
Make sure that you are in switch test mode in the diagnostics menu
Test the cpu board by removing CN8 and CN10 and using a jumper wire to go through all of the combinations on the switch matrix. If these all register correctly, then the problem is not on the CPU board. (see page 50 in the manual)
Remove all of the balls from the trough (there is a trough clear function in diagnostics)
Reconnect the CN8 and CN10 connectors on the CPU board
Now, go through all of the switches on the matrix using the switch diagnostics, paying close attention to the switches on rows 2 and 3 (where the issues are)
Carefully inspect the diodes and wires on the switches and make sure that they are not shorted to anything.
You may need to take the gun handle off of the machine to look at the wires inside the gun that go to the smart missle switch to see if the problem is in there.

Good Luck

 

[More Cowbell]

I had a similar issue with my JP (which I love as well) and it ended up being one bad diode that had broken away from the solder. That's all it takes to screw up a whole line of switches. Check and double check all of the switches in that area of the matrix, you might get lucky and find that one little issue that's keeping you from JP glory. Good luck!

By the way, on the subject of Radio Shaq, I went in this weekend on the off chance that they might have a horizontal width coil adjustment tool and I got the blank stare syndrome from the employee. How do they stay in business?

 

[swayze2]

Found that the Triceratops bumper wire was completely disconnected and I also resoldered the connections on the left slingshot. Also, the diode on trough switch one had been patch soldered a few times so I replaced with a new switch and diode.

Guess what???? Now its working!!! Seems like it was a combination of issues. It looks like a real clown had it before me and did some real crap fixes....YES IT STARTS!!!

Now out of the blue the TRex is struggling to move left to right, I think I may disable this all together. Not sure that its a big deal to move left and right.

Lastly the only small issue I have is the ball in trough one seems to get stuck in a slight worn out spot. Any decent fixes for this so I do not have to tear off and sand the trough?

 

[Geese]

Found that the Triceratops bumper wire was completely disconnected and I also resoldered the connections on the left slingshot. Also, the diode on trough switch one had been patch soldered a few times so I replaced with a new switch and diode.

Guess what???? Now its working!!! Seems like it was a combination of issues. It looks like a real clown had it before me and did some real crap fixes....YES IT STARTS!!!

Now out of the blue the TRex is struggling to move left to right, I think I may disable this all together. Not sure that its a big deal to move left and right.

Lastly the only small issue I have is the ball in trough one seems to get stuck in a slight worn out spot. Any decent fixes for this so I do not have to tear off and sand the trough?

Great! Glad to hear that it is working.

As for the ball trough, about the only thing that you can do is to take it out, give it a good cleaning, file down the bumps, and then put it back. It seems a little difficult, but it will be well worth it. The apron comes off with 2 screws that are under the instruction cards. then you can remove the top of the trough and then get the bottom of the trough from under the playfield. Fortunately the trough has it's own connector so once you remove it from the playfield, you can disconnect it at the connector and work on it at your workbench. The switches that are used in the trough are special low-force roller-micro switches. The high force switches look the same, so it is easy to get the wrong ones. Also there is a gray plastic post on the top of the trough for the ball lock release solenoid. Rotate this so that there is a "new" face where the lock hits it.

90% of the time, fixing T-Rex's left right movement is easy, the other 10% is a real pain. The easy fix is to first find the reft-right reversing relay board that is under the playfield. It is about in the middle, but closer to the flippers. When you are in diagnostics in the T-rex test, you should hear it click when you are pressing the flipper buttons to test the left-right movement. Once you find that relay board, take it out of the machine and suck all of the solder out of the conenctions on the relay, and then re-solder the relay. Next replace the connector, or at least re-flow all of the connections. Replace the mating connector as well. 90% of the time this will fix T-Rex.

Mike