Jumping Jack
Gottlieb, 1973we recently came across a 1973 Gottlieb Jumping Jacks pinball machine. Been working fine until this morning. It is just set to start a game just by pressing the button. Hit the reset button to start a new game this morning and it was making a different noise than usual startup. Look inside and found the cam carousel was just turning and turning and turning. It has not reset yet or started the game. unplugged it and that is where i am at the moment. Anyone have any ideals?
thanks
Check out Pinwiki.com EM repair, section 6.9. Lots of good info there.
Also reposting to EM tech sub-forum here will get more attention.
Did score reels reset to zero? Could be a zero position switch on score reel(s)that needs adjustment.
Quoted from griffinironwerks:Look inside and found the cam carousel was just turning and turning and turning. It has not reset yet or started the game.
That carousal is what resets the game to play from the previous game played. A score wheel sticking is a common problem. Manually reset the reels to zero before starting machine to rule this out.
update, i turn the cam on the top box and the score reset to 0 on both scores but the carousel on bottom is still turning. on the bottom i do see like a green light at times when it cycles. i guess that would be normal. not sure at this tie how to proceed. any help is greatly appreciated. thanks
I'm really wanting one of these so if you decide to sell or it's too much hassle, let me know via PM. Thanks. Also, definitely recommend reading through the mentioned site.
Your game looks to be in great condition esp the backglass. Nice find for $100!
Does the Control Bank reset?
If it does, then check the zero position contacts on the Bonus Stepper (see pic below) if these are dirty or wipers are not making contact the O relay will not operate and the ball will just stay in the outhole while the motor runs continuously.
still have not had any luck getting this thing going. if anyone has ideals i would greatly appreciate it.
You'll need to start from the beginning again. From your first post, you said the score motor (cam carousel) keeps running after you push the start/credit button. You'll need to find out what switches are sending power to the score motor. Do you have a schematic for the machine? Find the score motor icon on the schematic and work your way back through the switches in the score motor circuit. You can post a photo of the score motor circuit if you can't find what switches to check...
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Nashville, GA