30 Jan
2013
30 Jan
'13
1:07 a.m.
Hi,
In the discussion on HP LIF disks and bad sectors, I was pointed towards the 9895A service
manual and its?description?of initializing floppies, marking 'bad tracks', and bad
sectors. I have the 82901M 5.25" and 9121 3.5" drives, so have had a look in
their service manuals for similar descriptions, in case there were any differences or
further nuggets of information. The 82901 manual said very little on the topic, but the
manual for the 9121 (covering several 3.5" drives) shows in the contents that
Appendix A describes the command set. I had a look at the scanned version:
http://bitsavers.trailing-edge.com/pdf/hp/disc/09121-90030_3_Inch_Flexible_…
and copied here:
http://hpmuseum.net/exhibit.php?hwdoc=288
but Appendix A is missing, does anyone have a link or a scanned copy please?
Regards,
John
30 Jan
30 Jan
8:22 a.m.
On Wed, Jan 30, 2013 at 1:07 AM, John S <john_a_s2004 at hotmail.com> wrote:
Hi,
In the discussion on HP LIF disks and bad sectors, I was pointed towards the 9895A
service manual and its description of initializing floppies, marking 'bad tracks',
and bad sectors. I have the 82901M 5.25" and 9121 3.5" drives, so have had a
look in their service manuals for similar descriptions, in case there were any differences
or further nuggets of information. The 82901 manual said very little on the topic, but the
manual for the 9121 (covering several 3.5" drives) shows in the contents that
Appendix A describes the command set. I had a look at the scanned version:
http://bitsavers.trailing-edge.com/pdf/hp/disc/09121-90030_3_Inch_Flexible_…
and copied here:
http://hpmuseum.net/exhibit.php?hwdoc=288
but Appendix A is missing, does anyone have a link or a scanned copy please?
Not the exact manual you were looking for but might have the same
information. This scanned copy includes pages Appendix A-1 through
A-36.
http://bitsavers.trailing-edge.com/pdf/hp/disc/5957-6584_9123D_3.5_Flex_Dis…
Manual Update 5957-6584
Update for the 3 1/2-inch flexible disc drive service manual (part
number 09121-90030)
This update is for the tabbed section of the manual labeled 9123D.
The update covers information on the HP 9123D product.
Appendix A
HP Flexible Disc Drive Command Set
All host computers interfacing to the 9121D/S and the 9133 will use
these commands. For the rest of this section where the 9121D/S is
referenced, please keep in mind that the implementation is the same
for the flexible disc portion of the 9133.
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