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Gimbal Chicken Dance most common reason and repair

Discussion in 'Phantom 2 Vision + Discussion' started by hunch, Mar 15, 2015.

  1. hunch

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    So you crashed your Phantom 2 Vision+ and there is no visible damage to the bird or the gimbal yet your camera
    still does a chicken dance when you power it up.
    most common reasons for gimbal repairs are broken flex cable, bent Y arm, roll shaft alignment as we've all seen in numerous youtube videos.
    but most common reason for a chicken dance is a pitch sensor board potentiometer cracking or braking which results in
    values of resistance on it being way out of whack.
    so if you feel like replacing the potentiometer on either, roll or pitch sensor board, here is how:

    Faulty measurements on the potentiometer. it should be centered, and reading between center top to bottom left or right connector ~4kOhms. this one is reading over MOhms


    on the other side


    new potentiometer


    take the old one off


    tin the new one
     

    Attached Files:

    pvlietst likes this.
  2. hunch

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    Tin the connectors on the board


    install a new potentiometer


    new correct readings. now the gimbal won't come on with the chicken dance.... most common reason for it
     

    Attached Files:

    Brian089 and pvlietst like this.
  3. Mako79

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    That's awesome.
    Are these the same size as the playstation/xbox 2 axis pots?
    Thanks
     
  4. hunch

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    Mako,
    i don't know the size of PS / xbox size so i really can't give you a good answer.
     
  5. burlbark

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    Hani is making this look easy but it is very easy to lift the single top pad/trace off the board so please proceed with caution. It can be a real pain to get conductivity through the top legs adjacent thru hole. If you look at his pic showing that removal it appears as if part of the pad has lifted and stuck to the potentiometer leg but the pic is not clear enough to be certain. I have pulled up 2 pads in the last 6 months.... Sometimes they are already lifted if the crash was bad enough.

    Hani and I have done countless replacements of these and its only 10% of the battle. Once the motor shaft is bent then it is going to want to bind and give you the remove gimbal clamp warning. Then the motor shafts need to be straightened and turned down so they dont bind in the bearings.

    Jeremy
     
  6. dysan911

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    and its for this very reason I'm glad Burlbark is getting my chicken dancing gimbal tomorrow. :p
     
  7. Hitcher99

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    Hello,

    thank you for this very useful Information.
    Can you say me what Sensor i should buy to replace the old cracked one?

    Thanks
     
  8. M.Tigelaar

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  9. pvlietst

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    Hello,

    Also I'm curious what potentiometers I should buy, or where to order.
    The look like custom made for dji.

    Patrick
     
  10. CityZen

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