(Topic ID: 1493)

DMD repair?


By SealClubber

8 years ago



Topic Stats

  • 9 posts
  • 4 Pinsiders participating
  • Latest reply 8 years ago by drbond
  • No one calls this topic a favorite

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    #1 8 years ago

    I don't think the DMD in the Star Wars is outgassed For one, it doesn't look outgassed, no black dots. It also has random "display noise" throughout the display.
    But something is wrong with it. Likely a failed chip or something. I installed the Display Glass in my LOTR, using the cables and display driver board from the LOTR and it worked clearly for a few seconds and then went back to showing random "Noise" like it does in the SW. There is also, audible white noise, coming from it. Since everything works on the LOTR side, and the only thing changed was the display itself, the problem has to be on the display. Any ideas if this can be fixed? Can the chips be changed out? Would like to save a $125 display if I can.

    #2 8 years ago

    It is most likely the display driver board. Check voltages coming from it, also could be an IC on said board that had given up the ghost. If the board is working in another game then it is fine, but did you use the same cable in the LOTR? Sometimes those ribbon cables go south so I would check it, then dmd driver.

    #3 8 years ago

    Seal, anywhere where I can look at a schematic?

    #4 8 years ago

    I'm sure most know this site but here's some info on the DE DMDs.

    http://www.pinrepair.com/de/index3.htm#dots

    #5 8 years ago

    I used all the LOTR's cables and driver board. The only thing I used from the SW was the glass display board itself. So the ribbon cables are good, the driver board is good and it gets good power. Would have to get a schematic from Cherry. I doubt it can be saved but I would like to try since I believe the plasma portion is still good.

    #7 8 years ago

    I gotya now. I should have read the first post better. If it does the same thing (the dmd) in both games, it is bad. I would just trash it, as it may ruin something else if you leave it in a game, or repair it wrong.

    #9 8 years ago

    Appears you covered most of your bases in your troubleshooting SC. Its probably best to bite the bullet and just replace the DMD.

    Look on the bright side....at least you aren't trying to replace a jumbo DMD for Baywatch, Batman Forever, Maverick, or a Mary Shelly's Frankenstein. Your wallet would be in more of a hurting.

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