Hi all. Keep having switch issues with my JP and the trex apparently. All the switches test fine. During the diagnostic and game phases, however, the trex doesn’t always chomp (eat the ball) and sometimes the up and down sensors do not register. Again they do during test phase but not gameplay. He intermittently eats the ball but most times not. I tried adjusting the switches but no fix yet. Thoughts?

Jimmy

Thank you all. Got some diagnostics to do and will report back. Seems like I should take the whole thing apart for now. This should be fun.

Is there a link to the article? Thanks

Took the t Rex apart and all wires look fine and test fine. One was slightly crimped but every time I test the jaw in diagnostics it works at all levels. I tested the switches all work. Scratching my head. I’ll post pics if it will help but open to other suggestions. Again the only issue is that the trex doesn’t always pick up the ball when it goes down to do so in game play.

There is one crimped wire slightly but still diagnostics fine. I’ll try to get a new saucer. Not sure if the wire is worth stripping. Don’t have a lot of room left

And this is probably a dumb question but why would the plastic saucer matter if it’s cracked? If the switch works and the ejector works what would be the issue? Why would the mouth not close on it?

So odd. Mine goes down, doesn’t chomp at all, then chomps at top. The ball sits there then auto pops out. Frustrating. I’m trying to find a new saucer. It’s not cracked bad, but it is cracked. The ball registers in the saucer every time however. Just odd.

Ya I may just order all new switches. Also while I’m in here should I oil this bad boy up or go through a cleaning? She’s dirty. I got most of the switches to be consistently on when in proper position. Sometimes up lags or is off. But again all test fine. Anyone got a link to the saucer?

So I think I figured out why it’s not working. The tRex up and down motor will sometimes go all the way around and then sometimes it goes backwards. When it goes backwards it gets caught behind the down switch and then kicks back over. If I bend the switch so it triggers both ways it doesn’t work properly. Is the motor supposed to go both ways? Or is it just supposed to go clockwise? I watched the times it ate the ball and it only ate the ball when it went clockwise.

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Anyone mind showing me a picture of their switches underneath the playfield? For the tRex?

Thanks. My top switch will work going both ways but the bottom only one way. Is that normal? See how the motor hits the bottom and then goes the other way but the top doesn’t do that. I bent the switch to work both ways on the bottom but then the trex really wouldn’t work.

Mine only swallows the ball half time now. The Rex registers but the down switch is causing the trex to stay down and multiple chomp the ball, then go back up without swallowing. Then the ball pops out. It doesn’t impact play, other than being annoying. It’s hard to describe but it’s the bidirectional counterclockwise motion that causes it and “fixes” itself half the time (turns clockwise) and he works perfectly. So confused, so if anyone has any ideas I’m all ears. In test mode all switches test fine. Otherwise I’ll just flip away thanks again!