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(Topic ID: 273716)

System 6 MPU to Replace System 7


By the96stang

4 months ago



Topic Stats

  • 4 posts
  • 4 Pinsiders participating
  • Latest reply 4 months ago by slochar
  • No one calls this topic a favorite

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    #1 4 months ago

    I have a system 6 mpu that is clean and working. I want to put it in a system 7. Is there a write up on making that happen? How hard is it?

    #2 4 months ago

    It can't. System 6 has less memory capabilities. System 7 also has an added PIA to control the soundboard which is lacking on system 6. You can run a system 7 board in a system 6 but the other way around is not possible.

    #3 4 months ago

    What is the title?

    Weren't there some early Black Knights that used the remaining System 6 boards before Williams switched?

    Edit: After a quick look in the Black Knight club it looks like there were some made with the remaining system 6 power supplies

    #4 4 months ago
    Quoted from ss-pinball:

    What is the title?
    Weren't there some early Black Knights that used the remaining System 6 boards before Williams switched?

    Yes, all but the mpu board. The power supply changed slightly is really the only difference in the system 6 style version of BK.

    I've thought about ways to upgrade the system 6 mpu in the past to support system 7, you could do it with a daughter card that would plug into the cpu socket but that card would have to have an extra PIA on it with a connector to go to the sound board/commas, and extra ram. Likely not worth the design/debug cycle though since you can get Kahout boards again.

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