(Topic ID: 290461)

Gottlieb North Star won't add credits or reset play

By Kaps

3 years ago


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  • 18 posts
  • 7 Pinsiders participating
  • Latest reply 3 years ago by DaMoib
  • Topic is favorited by 2 Pinsiders

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#4 3 years ago

Paul - it's a "W" (same as Bank-A-Ball)

#6 3 years ago

Yes, that's how the extra chute switch powers up the machine.

The extra chute (set up to accept quarters in Kaps case), is capable of awarding multiple games per coin drop. He just has a coin entrance plate with two slots in it and two coin mechs on the door (if I understand your question correctly).

#13 3 years ago

It's on to following the red line on Howard's schematic... identify the location of the components on the schematic within your machine, assemble your tools (jumper wires, gloves, meter, a good light source and a healthy fear of 120 volts) and follow the troubleshooting with jumper wires procedure.

We're all here if you have any questions!

#15 3 years ago

That's the anti-cheat switch, which should be normally closed. *Although as I look at the North Star schematic (both Howard's above and others on Pinside), it is drawn as normally open - but that cannot be correct. I've attached a Bank-A-Ball schematic for comparison. Anti-cheat, shutoff and bounce switches are all normally closed. If any one of those three switches were normally open, the machine would never be able to start...

The fact that it is bent like that is an indication that a previous owner over-adjusted it to guarantee it is closed. There's still a possibility that it is not operating correctly and you can use the jumper to test it by connecting the two solder tabs for that switch together and repeating your test.

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#18 3 years ago

After a FaceTime debugging session, we believe the SB relay was latched on and the SB M/B switch that controls the motor turning is intermittent. It would explain the lights being on and the coin chutes and replay button not working due to the fact that the 120v SB M/B switch was powering the transformer and NOT the coin drop/new game circuit path. SB latched with a motor control switch failure is also a deadly embrace that would survive multiple power cycles in an attempt to clear the failure.

Manually engaging the reset arm on the bank cleared SB and restored normal operation.

Time will tell if the theory is correct - OP’s son more than willing to perform the extensive play-testing required to validate or disprove it.

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