(Topic ID: 148635)
Linked Games
Duotron
Gottlieb, 1974
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Twin Cities, MN
Power has to go through the cabinet flipper switches and EOS switch, then overcome the return spring tension.
So cabinet switch could be pitted/dirty, EOS switch may not be fully closed, and/or return spring is too tight. For the return spring, there should only be enough tension to get the flipper to flop back down, which isn't much. Flippers that machine gun sometimes are a due to the return springs being wound way too tight.
Also make sure the coil wiring got attached in the right places.
1 week later
Do you have the schematic?
Find the "Add Bonus" stepper coil and see what the switch logic is to activate it.
The flipper buzzing may be due to the plunger and coil stop not being aligned straight with each other, or the return spring tension is wound too tight.
Might want to start a separate thread for additional debugging issues since the transformer wiring is sorted out.
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