(Topic ID: 276442)

grand prix outhole issue

By vipertblck

3 years ago


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  • 18 posts
  • 5 Pinsiders participating
  • Latest reply 3 years ago by vipertblck
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    #2 3 years ago

    This is the circuit to check: the M/B on the Outhole relay and the score motor sw. 4A.

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    #4 3 years ago
    Quoted from vipertblck:

    thanks, bear with me through this. the M/B switches on the outhole relay, check ALL OF THEM to make sure they are open/closed as intended, with the relay on and off? I can check the schematic and find the #4 wheel on the cam and figure which switches are A, should be brown/orange and a brown/yellow for 4A?

    F on the Outhole.

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    #10 3 years ago
    Quoted from vipertblck:

    any guide or something explaining the cleaning procedure you did on your score motor?

    Check this: http://homepinballrepair.com/index.php/em-score-motor-adjusting-repair-pinball/

    #13 3 years ago
    Quoted from vipertblck:

    the article is helpful but not applicable to my issue.

    My mistake for not reading all the way thru; I thought it was getting to it. Something just occurred to me though: can the switch stack be moved back? Or will that mess up other things?

    Here is a pic of the motor, apart. You want to clean the part that moves in and out.

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    #16 3 years ago
    Quoted from currieddog:

    can the switch stack be moved back?

    Is it on the right position? That would account for the 11:00/12:00 thing.

    and the circled area shows (approx) where there is a moving gear that engages when energized. It sometimes gets gunked up. Clean with rubbing alcohol or mineral spirits.

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