(Topic ID: 232297)

1971 Bally Trail Drive please help

By Governor

5 years ago



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  • 4 posts
  • 4 Pinsiders participating
  • Latest reply 5 years ago by Cdemuro
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#1 5 years ago

Hi,
We had a big party and the machine got constant use, died before the party did though.

I solved the majority of the problems but am left baffled by the 2 remaining issues. Can someone help play devils advocate and teacher?

1. there are 2 "shoot the cat" high point areas. They should reward 5000 and 3000 points (or only 300 if increase value is ot hit). This means turning the 4th number in the score 3 or 5 times. Somehow it is turning the 3rd number and 4th number 3 or 5 times. Free points, not a huge issue but would like help in learning!

2. Top left bumper is dead. I get power to the switch, but power is not detected at the solinoid when the switch is triggered. Looking for questions I have not already asked to help troubleshoot.

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#2 5 years ago

Do you have schematics?

Quoted from Governor:

2. Top left bumper is dead. I get power to the switch, but power is not detected at the solinoid when the switch is triggered.

With no schematics to go on I'd suggest comparing the bumper to the working ones and trying to track down any anomaly that way.

#3 5 years ago

Hi Josh, welcome to pinside.

I'll need to see a high quality scan of the schematic from (for example) Staples ($2) or Kinkos ($6)

#4 5 years ago

Problem 1: look for an “alternating relay “ probably on the bottom of the play field. Sounds like a contact is out of adjustment and scores both 100 and 1000.
Problem 2: find pop bumper relay also on bottom of play field and check contact adjustments.

That’s where I would start.

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