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  1. #1
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    How to repair a round MFD

    Ok
    I have seen plenty of information on here on how to repair the oval MFDs. There is not much information on how to do a round one. Its essentially the same procedure, however there a few things to watch out for. Here is how I cut it open.
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    The block is there to keep from cutting too deep. Also, right under the buttons is where the ribbon cable for the buttons is. I did not cut this area at all with the band saw. I did it with a small hand saw. I also did not cut all the way through the plastic. Use the hand saw to cut all the way through the plastic all around except near the buttons. Leave a little plastic there. When its almost all free, use a small screwdriver to pop the halves apart.


    Notice how close that ribbon cable is to the plastic housing. DO NOT CUT THROUGH IT!!!!!!! Your buttons will never work again if you do. Next step is to slide out the ribbon cable from the board and unscrew the 4 screws.
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    After you get the screws out you can carefully separate the board from the display. The LCD screen may be stuck to the rubber conductive strips. Just peel it off of the strips. Then peel the strips free from the board or the LCD, which ever it is stuck to. There are 2 strips, one on the top and one on the bottom of the display.
    Last edited by Mr. Matrix; 01-29-2012 at 04:58 PM. Reason: add pictures


  2. #2
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    After you get the screws out you can carefully separate the board from the display. The LCD screen may be stuck to the rubber conductive strips. Just peel it off of the strips. Then peel the strips free from the board or the LCD, which ever it is stuck to. There are 2 strips, one on the top and one on the bottom of the display.
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    Take some denatured alcohol and clean all of the contact surfaces of the strips and the strips themselves. Once those are clean you can reassemble everything. Lay the display face down and drop the LCD screen into it and place the rubber strips onto the LCD. Then place the circuit board on top and replace the 4 screws. Make sure the LCD screen is oriented in the proper direction in the display.


    Next reconnect the wire connectors to the back of the board and hook up the power to make sure it works.
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    Re insert the silica gel pack and seal up the housing. I like to use black RTV, so it can be opened again if necessary. Use electrical tape to clamp it together until the RTV dries.

    If you dont have access to a band saw, a razor saw or a hack saw blade would work as well.

  3. #3
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    Dave, your MFD is fixed!!!!!

  4. #4
    David Drkvampire2001's Avatar
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    Duuude you ROCK!!!!, wish i could have seen you open those bad boys up, do they both look that good now?!

  5. #5
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    Yes they look great. I even polished the lens so they are clearer.

  6. #6
    David Drkvampire2001's Avatar
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    Saweeet so now i just need a new sticker for the one...so that puts me up to 3 Ovals and 2 round MFDs....with only 2 skis....hrmmm.. damn polaris addiction!

  7. #7
    BlueFishCrisis's Avatar
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    Nice Job BryanP!!

  8. #8

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    Very Nice

  9. #9
    policano's Avatar
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    Thanks so much for this! I am going to attempt to repair mine tonight. I hope I dont mess it up anymore then it already is

  10. #10
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    Quote Originally Posted by policano View Post
    Thanks so much for this! I am going to attempt to repair mine tonight. I hope I dont mess it up anymore then it already is

    Be very very careful at the bottom so you dont cut the ribbon cable!!!!!!!

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