The ones I have (except of cause the working) seem to find trk0 and generates a drive not ready after that point. I've done some measurement on the drives but they aren’t very consistent with the service manual. There seems to be a jumper configuration which places the drive in a test mode, I've seen it somewhere but can't find it online anymore. I seem to have a hardcopy of it somewhere, I'll look it up, maybe it is of some help.
-Rik > -----Oorspronkelijk bericht----- > Van: cctalk [mailto:cctalk-boun...@classiccmp.org] Namens Al Kossow > Verzonden: vrijdag 21 oktober 2016 23:13 > Aan: cctalk@classiccmp.org > Onderwerp: Re: HP 7945 disk format > > I suspect it's the head servo. > I've been trying to get a solid read out of the v170 I've been experimenting > with > all morning. > It chugs along, recals, then a seek failure. > > > I'd also like to understand the failure mode of Maxtor positioners. I had a > 2190 > croak (literally) as I was trying to read it. > > click, click, click, CROWKKKKKKKKK, clunk. > > On 10/21/16 1:22 PM, Rik Bos wrote: > > > But do you know the cause of failure of these drive's, except of cause the > obvious shorting tantalium caps? > > I used hpdrive to backup the working one. > > > > -Rik > >
