(Topic ID: 175448)

Gottlieb System 3 NVRAM ?

By barakandl

7 years ago


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    Gottlieb sys3 schematics (resized).JPG
    SYS3-NVRAM working (resized).jpg
    SYS3-NVRAM (resized).jpg
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    #6 7 years ago
    Quoted from barakandl:

    Anyone get a 6264 NVRAM working on a system 3 game?
    Proposed idea I am going to try. Have a World Challenge Soccer in the garage.

    If you want it to run with your 6264 NVRAM-Adapter, you need a little board like this

    The board will be available as a professional board with smd parts in a few weeks.

    If you only need it for your persoanl use now, I could etch you a board and your sys3-machine will run with your own Nvram-Adapter ...

    SYS3-NVRAM (resized).jpgSYS3-NVRAM (resized).jpg

    SYS3-NVRAM working (resized).jpgSYS3-NVRAM working (resized).jpg

    #9 7 years ago

    It is not so easy, when you look at the schematics; it has to do with the Phase 2 Out (PHI2O) of the processor.

    Im am sorry, I cannot post the solution here before my boards have been manufactured. The little board replaces only the DS1210, furthermore every available Ram-Adapter that uses FM16W08 can be used then.

    Gottlieb sys3 schematics (resized).JPGGottlieb sys3 schematics (resized).JPG

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