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Thread: IBM 6580 Displaywriter not booting correct

  1. #1

    Default IBM 6580 Displaywriter not booting correct

    Hello,

    is stop at
    *801* 03 03 and LED behind show F G H
    press then the Memory Record Button

    *801* 05 03 05 LED E
    press then the Memory Record Button

    *801* .D L no LED
    press then the Memory Record Button

    * 11* IBM Logo

    AC Motor from Disk Unit runing but not reading any disk.

    can some help ?

    thx

  2. #2
    Join Date
    May 2006
    Location
    Melbourne, Australia
    Posts
    6,375

    Default

    At [here] is a lot of Displaywriter documentation.

    One of the documents there is named S241-6248-3_Displaywriter_Product_Support_Manual_Feb83.pdf, and its chapter 9 covers diagnostics.
    Have you seen that?
    For example, page 9-6 (PDF page 198) suggests that the first error that you see is a failure of the DMA controller test.

    Have you tried re-seating all cards in the system unit?

  3. #3

    Default

    Thank you yes i have re seating all cards. How can i check a dma controller ?

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