(Topic ID: 240816)

Need some help with a 72 Fireball


By embryonjohn

9 days ago



Topic Stats

  • 10 posts
  • 4 Pinsiders participating
  • Latest reply 8 days ago by djblouw
  • Topic is favorited by 1 Pinsider

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#1 9 days ago

Here’s my best description:

Game plays fine except for these two issues and maybe the problem is connected somehow. Any help would be greatly appreciated.

1) when the top pop bumper is triggered, the 00-90 Unit locks, won’t unlock and make a very loud buzzing noise. It doesn’t matter if the pop bumper is unlit for 10 points or lighted for 100 points, the same occurs, necessitating the game being switched off or the pop bumper to be disconnected.

2) during random points in the game it’ll inject all the balls from the trough into the shooter lane.

AE93C817-52E4-4092-A41F-2495D36321B4 (resized).jpeg
#2 9 days ago
Quoted from embryonjohn:

1) when the top pop bumper is triggered, the 00-90 Unit locks, won’t unlock and make a very loud buzzing noise. It doesn’t matter if the pop bumper is unlit for 10 points or lighted for 100 points, the same occurs, necessitating the game being switched off or the pop bumper to be disconnected.

Does it matter if Match is "in or out"?

Quoted from embryonjohn:

2) during random points in the game it’ll inject all the balls from the trough into the shooter lane.

That appears to be normal. Check p.4 of the manual: https://www.ipdb.org/files/852/Bally_1972_Fireball_Manual.pdf

#3 9 days ago

I tried shutting off the match. Didn’t help.

#4 9 days ago
Quoted from embryonjohn:

1) when the top pop bumper is triggered, the 00-90 Unit locks[quoted image]

There is an EOS switch on the unit. If that is not opening the unit will lock.

#5 9 days ago

Check this make/break on the Lite Yellow T-B relay

Capture (resized).PNG

#6 9 days ago

Thank you for the help. I’ll be back at it this evening armed with great leads to run down. Man I love pinside!

#7 8 days ago

It was the EOS on the stack. I got my pop bumper back! Thanks

Now the last problemis this: when the ball lands in the Odin it triggers a never ending serving of balls to the plunger lane. I checked the trough switches a million time. Can’t figure this out. Ugh

#8 8 days ago

Check here:

https://pinside.com/pinball/forum/topic/1972-fireball-puts-2-balls-in-shooter-lane-at-once

It sounds like the same issue I had. The solution is at the bottom of the thread.

#9 8 days ago

The solution sure was at the bottom of the thread. I took some insulation off some wire and added it to the switches.
Success...
Thank you!

6C04A278-618B-4F79-BBC5-0516E0172A2D (resized).jpeg
#10 8 days ago
Quoted from embryonjohn:

The solution sure was at the bottom of the thread. I took some insulation off some wire and added it to the switches.
Success...
Thank you![quoted image]

Glad you got it working!

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