(Topic ID: 11621)

DMD interchangeability between manufacturers?

By boostedskex

12 years ago



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    #1 12 years ago

    Can I use a DMD out of a Williams machine in a Data East (128 x 32) machine for testing purposes?

    Thanks

    #2 12 years ago

    I just found this today because of a DMD issue I had. Hope it helps.

    Are All Dot Matrix Displays the Same?
    The short answer is "yes". But be aware DMDs come in different sizes. Williams
    always used the 128x32 column/row variety (DataEast for example used a 128x16
    and a 192x64 display, in addition to 128x32). And yes a 128x32 dot matrix display
    from a Gottlieb, Sega, DataEast or Stern game will work in any DMD WPC/WPCS/
    WPC-95 game or vice-versa (but note that DataEast/Sega/Stern have an
    additional controller board bolted to the back of their 128x32 DMD, which is not used
    on a Williams WPC game). Also it should be stated that some brands of dot matrix
    displays (like Babcock) require 12 volts to operate, and most others don't. I have
    seen problems where a DMD requiring 12 volts won't operate in a game, but one that
    does not require 12 volts will work.

    #3 12 years ago

    Yes. NO problem

    #4 12 years ago

    cool, thanks guys!

    Reply

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