Re: PET 3032 alive :)

From: Francesco Messineo <francesco.messineo_at_gmail.com>
Date: Thu, 2 Feb 2017 19:32:39 +0100
Message-ID: <CAESs-_zHr54PsrN+Mt3m6gqT=2-fGu3sQbMaZHp2BhmFa9WShg@mail.gmail.com>
And it's dead again :(
I was typing the cbmlink bootstrap basic program.
I saved it on tape and I was trying the first test runs as it just died on me.
Now at reset it clears the video memory and sometimes it displays a
few random characters but most of the time the screen remains just
blank.
I'm going to try to substitute the kernel ROM since on one of my
programmers refuses to read entirely (on another one reads fine every
time).
With no kernel ROM, the screen remains full of characters as it should.
Ok... old hardware isn't so easy to fix after all.
Suggestions welcome of course!
Frank

On Thu, Feb 2, 2017 at 5:28 PM, Francesco Messineo
<francesco.messineo@gmail.com> wrote:
>
> I'm waiting for a suitable IEEE-488 cable for the PET, so for now I'm
> not going to test it.
> Anyway, based on the fact that the 488 interface is going only into
> UC6, I'll leave the 6821 (a 1983 vintage EF6821P) on UC7 position.
>
> Thanks again!
> Frank

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Received on 2017-02-02 19:00:02

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