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High Speed Weak Right Flippers

Discussion in 'Pinball Tech Support' started by Hammerhead, Apr 11, 2020.

  1. Hammerhead

    Hammerhead Well-Known Member

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    I've completely rebuilt the flippers on my High Speed; new coils, new EOS switches, new diodes, etc. The left flipper is nice and strong and you can easily rip the spinners. However, the right flippers are quite weak; the upper right can barely get the ball up the ramp and you have to hit the shot perfectly, the lower right cannot get the ball up to the pops.

    I've checked all the wiring, the diodes, the switch gaps, everything looks like it should be correct.

    I've attached some photos, any help would be appreciated

    63df61e6d9a91290e65d633b23d48ce17663291b.jpg 691604ac2a2cb6bf11b6f705ad014d2960a36280.jpg 930225dc4e9c9d239cd7573fc0e63dcdfeabb8a1.jpg bae3cfe876dabf3c90d5af4a1d394de6906ae95f.jpg
     
    #1
  2. Hammerhead

    Hammerhead Well-Known Member

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    The only thing I haven't replaced are the flipper button switches, but they looked okay both left and right.

    3c00caa1959afd411d7b547da612ab72d2e053fa.jpg 93a2f79b168b6aa286653adb3f76c43696b916b4.jpg 910f5dab97fae18355c9199cf550b0224e810b4b.jpg 6190d9492dff5829378b1a998489e4492bc8d8d8.jpg
     
    #2
  3. luch

    luch Well-Known Member

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    try running a business card thru the button switches , they do look a bit dirty
     
    #3
  4. Hammerhead

    Hammerhead Well-Known Member

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    In the manual I've taken the following snapshots; they both say that power wires go to the banded side of the diode. If that's the case it looks like all three flippers are wired incorrectly. I have the following questions:
    - if they're wired backwards shouldn't I have blown something by now?
    - if they're wired backwards why does the left flipper work well but the others are weak?
    - the snapshots say the trace wires should go the unbanded end of the diode; I have no trace wires, they are all coloured differently than the manual

    Can someone post photos of their flippers so I can maybe see where I've gone wrong.
     

    Attached Files:

    #4
  5. atariaction

    atariaction Well-Known Member

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    I would try cleaning or replacing cabinet switches as luch mentioned
     
    #5
  6. Hammerhead

    Hammerhead Well-Known Member

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    I've isolated the issue to the lower right coil. I swapped it out for the old beat up coil and the flipper strength returned, but it sticks so it needs to go.

    This was a brand new coil; how can I test to see what is wrong with it.
     
    #6
    Last edited: Apr 16, 2020
  7. luch

    luch Well-Known Member

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    can you change out the sleeve only on the old one ?
     
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  8. Hammerhead

    Hammerhead Well-Known Member

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    Tried that, still binds up for some reason
     
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  9. luch

    luch Well-Known Member

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    try a rat tail file , and file it out a bit , then put in a new sleeve , also did you try the new coil on the other side that works ? you may have the diode the wrong way . just trying different things to help you
     
    #9
  10. ToMMy

    ToMMy New Member

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    The new lower right coil looks discoloured to me, in an overheated kind of way (top picture).
    Probably has a winding short.
     
    #10
  11. Hammerhead

    Hammerhead Well-Known Member

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    And the sleeve that came out was discoloured as well. Sounds like the new coil is pooched.
     
    #11
  12. sylvain

    sylvain Active Member

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    The real question is what made it burn...
    I assume it was good 'from the factory'.

    EOS not opening?
    or reversed wire connections on lugs?

    Good luck!
    -Sylvain.
     
    #12
  13. Hammerhead

    Hammerhead Well-Known Member

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    I have a feeling the EOS want adjusted correctly from the beginning
     
    #13
  14. Hammerhead

    Hammerhead Well-Known Member

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    Wasn’t
     
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