Re: HP 7945 disk format

2016-10-21 Thread Al Kossow
On 10/21/16 2:32 PM, Rik Bos wrote: > 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. > http://stason.org/TULARC/pc/hard-drives-hdd/priam/V130-26MB-5-25-FH-MFM-ST506.html anyone know of a not-mangled-i

Re: HP 7945 disk format

2016-10-21 Thread Al Kossow
I also forgot that I found the schematics last year. Up under /pdf/vertex On 10/21/16 3:41 PM, Al Kossow wrote: > > is your copy better than the one at > http://maben.homeip.net/static/S100/vertex/disk/VERTEX%20V100%20Maintenance%20Manual.pdf > ? > > On 10/21/16 2:32 PM, Rik Bos wrote: >> The o

Re: HP 7945 disk format

2016-10-21 Thread Al Kossow
is your copy better than the one at http://maben.homeip.net/static/S100/vertex/disk/VERTEX%20V100%20Maintenance%20Manual.pdf ? On 10/21/16 2:32 PM, Rik Bos wrote: > 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 som

RE: HP 7945 disk format

2016-10-21 Thread Rik Bos
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

Re: HP 7945 disk format

2016-10-21 Thread Al Kossow
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 i

RE: HP 7945 disk format

2016-10-21 Thread Rik Bos
> -Oorspronkelijk bericht- > Van: cctalk [mailto:cctalk-boun...@classiccmp.org] Namens Al Kossow > Verzonden: vrijdag 21 oktober 2016 19:17 > Aan: General Discussion: On-Topic and Off-Topic Posts > Onderwerp: HP 7945 disk format > > for anyone wanting to try David's MFM emulator in an HP

Re: HP 7945 disk format

2016-10-21 Thread Al Kossow
the 7941 used a V130 so for that substitute --heads 3 for --heads 7 On 10/21/16 10:16 AM, Al Kossow wrote: > for anyone wanting to try David's MFM emulator in an HP MFM 7945 disk box, > here is the > format, determined from reading a Vertex V170 drive from one > > --sectors 32,0 --heads 7 --cyli