amiga 1200 cold start video problem with aca1233n

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Don't Panic. Please wash hands.
  • Hello.

    My English is not very good. So I used GoogleTranslate. I apologize in advance for the mistakes.


    I have a strange video problem on my amiga 1200 computer. Motherboard model 2b

    When the workbench screen arrives during a cold start, the image disappears.

    I tried it by starting the amigatestkit with gotek driver. The same thing happened in the video test section.

    The computer can be restarted with a reset when the video signal is absent. After a few reset attempts, everything returns to normal.

    Hardware connected to the computer, aca1233n + (RTC), compact flash hard drive and gotek drive.

    I took the Aca1233n card and tried it. There was no problem.

    I re-inserted the card and the amigatestkit video test again resulted in a black screen.

    The Amiga 1200 has recently been refurbished. New capacitors installed. Timefix also made. (E123C and E125C)




    I also cleaned the amiga1200 card slot contacts.



    I am using amiga with os3.9 bb4.

    The power supply I use is meanwell RT65B.

    You can also watch the youtube video below.


    https://youtu.be/koLF7A7LKSA

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