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(Topic ID: 278262)

couple issues with 1973 Williams EM


By firefly9r68

24 days ago



Topic Stats

  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 23 days ago by firefly9r68
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    There have been 5 images uploaded to this topic. (View topic image gallery).

    Jubilee Ball Count step up (resized).jpg
    20200927_171034 (resized).jpg
    20200927_170959 (resized).jpg
    20200425_185629 (resized).jpg
    20200425_185625 (resized).jpg

    #1 24 days ago

    ok so i got this machine in pretty bad shape and not working. After changing alot of fuses, cleaning alot of points, replacing 2 coils, and much much more i have it up and running. I re did the cabinet on the game and cleaned and touched up the original play field. All i have left is to do the legs, the game turned out great but im having a few issues.

    1 when i activate the Left flipper is scores on player one 100 points
    2 the game starts and plays perfect except it stays on player one 24/7 and ball 1 24/7

    you can select 2 player but it wont ever go to player2.

    I have worked on alot of 1980+ but this is my first EM to mess with. I do have a original wiring diagram(and lots of hours staring at it LOL) for the machine and yes i can use a volt meter

    couple before and after pics for the fun

    20200425_185625 (resized).jpg20200425_185629 (resized).jpg20200927_170959 (resized).jpg20200927_171034 (resized).jpg
    #3 24 days ago
    Quoted from firefly9r68:

    1 when i activate the Left flipper is scores on player one 100 points

    It could be that a nearby target switch is closing due to the vibration caused by the left flipper.

    Quoted from firefly9r68:

    2 the game starts and plays perfect except it stays on player one 24/7 and ball 1 24/7

    For the Ball Count Step Up solenoid to fire you must complete the path through the Player and Coin Units and a few other switches. This schematic is from Jubilee but yours is likely very similar if not the same.
    Jubilee Ball Count step up (resized).jpg
    There are more details about how this circuit works in other topics like this one:
    https://pinside.com/pinball/forum/topic/williams-grand-prix-revival

    Try jumpering around some of the switches to see if you can get the solenoid to fire.

    /Mark

    #4 23 days ago

    You have a Jubilee with a Darling Instruction card

    #5 23 days ago
    Quoted from MarkG:

    It could be that a nearby target switch is closing due to the vibration caused by the left flipper.

    For the Ball Count Step Up solenoid to fire you must complete the path through the Player and Coin Units and a few other switches. This schematic is from Jubilee but yours is likely very similar if not the same.
    [quoted image]
    There are more details about how this circuit works in other topics like this one:
    https://pinside.com/pinball/forum/topic/williams-grand-prix-revival
    Try jumpering around some of the switches to see if you can get the solenoid to fire.
    /Mark

    ok great! ill go to that link and work on this in the next week or so when i get a few mins and let you know. If i still cannot figure it out ill repost on here and go from there!
    thanks guys!

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