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

[Al Kossow]

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
http://www.dasarodesigns.com/schematics-and-resources/

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