ST-251 [was Re: Unsticking a Seagate ST-419 head]

Al Kossow aek at
Thu Oct 20 16:08:41 CDT 2016

On 10/20/16 1:25 PM, Jason Howe wrote:

> I'm actually trying to bring an ST251-1 back to life right now.  It worked, then was intermitently not recongnized by
> the controller after being powered on for a while, now not recognized at all.  When you apply power it runs through
> whatever standard head-sweep routine (self-test?), but there seems to be a communication breakdown between the Drive
> electronics and controller board.

Just did my usual sweep for schematics, and there is one up now

There was a guy on ebay selling off individual sheets of reverse-engineered schematics,
and he bought them all and put them on line!

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