Re: 1571 (128D) spindle speed adjust?

From: Francesco Messineo <francesco.messineo_at_gmail.com>
Date: Wed, 20 Dec 2017 16:45:15 +0100
Message-ID: <CAESs-_yq1fboXgMdC7NFNN3HMEh-JSFXYU+EX5PQEmXCHsC01Q@mail.gmail.com>
On Wed, Dec 20, 2017 at 3:49 PM, Pete Rittwage <peter@rittwage.com> wrote:
>> On Wed, Dec 20, 2017 at 2:46 PM, Pete Rittwage <peter@rittwage.com> wrote:
>
> Most of the time, the issue with those is the top head does not apply
> proper or even pressure for the bottom head to read. If it sits
> open/unlocked for years and years, the little metal ribbon bends/warps and
> causes this. I would carefully check that first.
>
> http://personalpages.tds.net/~rcarlsen/cbm/1571/1571diag.txt

yes I know this page, but I haven't found a clue so far.
It might be out of alignment. One thing that I noticed is that when
formatting a disk that goes to track 35, it seeks back to track 0 for
checking every track (I think) and fails immediately after seeking
back to track 0, like if the sensor (that I cleaned), would not
function properly...
I'll try using the diagnostic programs, those maybe will give me some
more hints.

Frank

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Received on 2017-12-20 16:00:02

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