(Topic ID: 293769)

Stern Spider-Man lower right flipper always engaged

By jmppts

6 months ago

Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 6 months ago by cireone
  • No one calls this topic a favorite


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#1 6 months ago

I have a stern pinball giving me issues with the lower right flipper. On game power up the lower right flipper engages and does not disengage until powered down.

No shorts from coil to pdb

Coil shows 4.6 ohm (no diode model)

Eos clean and identical to left flipper in physical appearance. I did clean the contacts.

J9 unplugged does stop the issue (obviously since the flipper is unplugged at that point)

Am I looking at a mosfet issue on the pdb?

#2 6 months ago

Sounds like a transistor issue.

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