3 Apr
2005
3 Apr
'05
3:53 p.m.
At 06:32 PM 4/3/05 +0100, you wrote:
I'll raise that to 3 versions at least :-)
I rather suspected there were at lest three versions :-)
I beleive there are at least 2 main versions -- the
older one in the
all-metal case (which, IIRC had separate floppy and hard disk controller
boards, linked ot the same HPIB connector) and the later one in the
'shoebox' with the plastic front/top cover.
There are at least two versions. One is the white square box about 13"
I have found a manaul called "HP's 3 1/2-Inch Flexible Disc Drive Service
Documentation". It's pretty content-free, the main useful part is the
appendix giving the Amigo command set, at least for floppies.
I also have that manual. I sent it to (someone) a couple of years ago to
be scanned/copied and they disseminated a lot of copies. Your copy may well
have come from me originally. FWIW it's part of a larger manual. Each
section (such as this one) was ordered and installed in the manual
separtately.
Anyway, this manual has a section on the drive itself (the single-head
Sony full-height one), no schematics and sections on the 9121, 9133A/B,
9133V/XV units.
I have a section on the HP 9133A. That's one of the old style boxs.
I also have a section on the 9123. The 9123 operates the same as a 9122
but gets it's power from the HP 150-II. It may be the same as drive and
logic board as a 9122 but I don't know. However I have a couple of 9122s
and 9123s and I could open them up and compare them if necessary.
I also have a section on the 9114 but I think you have that as well.
I also have a separate manual, 'HP-82901 M/S & HP-82902 M/S Flexible
Disk Drive Service Manual", that covers the old style 5 1/4" floppy drives.
The latter have partial PSU scheamtics, you're refered to
the Winchester Disc Service Manual for the rest of the
PSU (which, alas,
I don't have :-().
Yeap, Same here. I found this one at a local HP dealer and talked them
into letting me make a copy. I'm sure other dealers have some of this
laying around. I wish some of the other collectors would go beat the bushes
in their area and see what they could find.
BTW I just found a note that I missed earlier. It says that the 9133D
uses the ST-225. I think the 9133H uses a ST-4(something) drive.
Joe
The 9133A is the all-metal case with rounded ends. It contains 2
separate controllers (floppy and winchester), linked to a common HPIB
connector. Seprate address switches for the 2 controllers
The 9133V is in the plastic-topped case. Again separate controllers. The
floppy controller is 2 stacked boards (to get it in the case!). The HPIB
connector is on the winchester controller board, but there's an internal
HPIB link to the floppy controller. Again separate address switches.
Then there's the 9133H that I have. It's got one controller board with
one HPIB interface and one 98B09 processor. It controls both the floppy
and the winchester. One address swithc of course.
Intrerstingly, the manaul I have gives component lists for the floppy
controller boards. All 3 (9121, 9133A, 9133X) seem to be very similar and
use the same firmware ROM.
-tony