(Topic ID: 275910)

Gottlieb Liberty Belle - Alternating Relay

By rolf_martin_062

11 months ago

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  • 3 posts
  • 3 Pinsiders participating
  • Latest reply 11 months ago by MarkG
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#1 11 months ago

Hi pinsiders
I could buy me a Liberty Belle https://www.ipdb.org/machine.cgi?id=1438 , a pin I played in my Youth. I can play the pin but it has some bugs. I do not remember the rules --- do You have a fully running pin and can explain me a feature ? The schematics is a bit strange ... Here https://www.ipdb.org/showpic.pl?id=1438&picno=9635 on top and on the bottom of the picture we see "5 points or 50 points" - in my pin this does alternate - sometimes, hmm. In the JPG I show (squezed a bit) the schematics - I see (my marked green) the wiring "alternates as the 0-9 Unit steps" - but "my marked orange wiring" - what is it for ? --- the "U", "V" Relays pull just a short time (for the Roto-Units to turn) - the "X" also pulls just for a short time.

Do You have a fully running Liberty Belle and can tell me about "JPG, my marked orange wiring" ? Greetings Rolf

0Liberty-Belle-Work-01 (resized).jpeg

#2 11 months ago

Hi Rolf- I have a Mayfair that does the two alternating relays (A and A1) and is otherwise the same except for no other relays in the circuit. The two handle the red and yellow bonus ladders, which alternate. https://www.ipdb.org/showpic.pl?id=1562&picno=6543&zoom=1 U (Double Target Value relay) handles that on its own.

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#3 11 months ago

Hmm. The A1 switch on the orange path feels like a lock in switch to me. The U, V and X relays all have their own lock in switches that once activated keep them active for the duration of the Score Motor cycle until the Motor 2B switch opens to release them. So those three switches would keep the A1 relay from relaxing while the U, V and X relays are active.

I wonder if the orange path is intended to keep the A1 relay active through the end of the Score Motor cycle only if the motor is running because of the U, V or X relays. Perhaps if the A1 relay were to relax while a Roto Target is spinning for example the scoring results would be unpredictable or annoying if it changed from 50 to 5. Although apparently the A1 relay can activate any time 10 points are scored, even while the Roto Target is spinning, so there's probably more going on here.


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