(Topic ID: 328190)

Flipper Fair's Rollunder Switch

By Mopar

1 year ago



Topic Stats

  • 6 posts
  • 2 Pinsiders participating
  • Latest reply 1 year ago by Mopar
  • Topic is favorited by 1 Pinsider

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    #1 1 year ago

    On and off I've been working on a Flipper Fair that had many issues, and all is sorted
    out but I'd like to know where's the Rollunder Switch? The Rollunder Switch is a switch
    that's N.C. and completes the circuit to the Score Motor when the 50 Point Relay is made.
    I went through a couple other Flipper Fairs, but never had an issue with a Rollunder
    switch. It's not any of the Trough Switches. I jumped and bypassed the Rollunder
    Switch, so the game does function properly, but I can't locate a mis-adjusted or dirty
    Rollunder Switch which has to be the reason the 50 Point Relay doesn't give juice to
    the Score Motor when it's energized. I can just solder a hot lead to one of the switches
    on the 50 Point Relay and all should be fine, but I wouldn't mind knowing where a Roll-
    under Switch suppose to be locate on the playfield. Maybe a switch I worked on dozens of
    other times, but I don't remember. Any ideas?

    #2 1 year ago

    Maybe I'm misreading your post. A rollunder is where the ball physically rolls under something and triggers a switch. Here's one from my 1962 Friendship 7. The actual switch is under the playfield.

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    #3 1 year ago

    There's yours! Right between the two top pop bumpers.

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    #4 1 year ago
    Quoted from hjh632:

    There's yours! Right between the two top pop bumpers.

    Hey, Clearance Center. Not too far away!
    I checked and tested those switches a couple times, and now I just went
    back and you're right. Like many I found on this machine, a cold solder joint
    except this one was attached but not feeding. I wiggled, it fell off, I re-soldered,
    and all is good.
    I went though a Friendship 7 earlier this year, and a couple reasons I kinda
    quickly shied away from that being the Rollunder switch is because Friendship
    7 refers it as a gate Switch (which I always have), but even more so is because it's
    a make/break, and the schematics shows it being just a 2 bladed set of switches.
    When I test, I usually just quickly make inside connection between the contacts
    with a small screwdriver which I've done 1,000s of times, but in this case, if I elegator
    clipped it, I would have caught it right away. I worked on many machines with Gates
    as such, and never knew it being known as a Rollunder switch. Thanks for responding!

    #5 1 year ago

    Not far away at all. I've communicated with you before via craigslist ads you had on. Almost went to your game room party many months back but couldn't make it. Henry

    #6 1 year ago

    Oh that's right Henry. I remember now.
    If you ever happen to be coming up this way, let me know..

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