On Thu, Jul 01, 2004 at 04:20:24PM -0500, ghldbrd_at_xpres.ccp.com wrote:
> You may need to put the floppy guts in the A1000 if the internal drive is
> TU, as it only boots off the inside floppy, called DF0: If it is an A1010
> floppy you're okay. Or you can hack a standard DSDD 3.5" floppy in, but
> you'll have to fiddlefutz with the jumpers to make it work correctly.
A standard "1M" (raw) floppy drive will fit on the cable and read disks
and all of that, but you might have an issue with the DISKCHANGE signal.
ISTR some floppy drives had jumpers to select pin 2 vs pin 34, while
others had no jumpers, and still others had no external DISKCHANGE pin.
The upshot is that you might have to tell the OS you swapped disks if
you can't find a drive that does the right thing. If the command isn't
DISKCHANGE, I forget it off the top of my head - it's not like we used
it all the time.
AFAIK, there's mechanical clearance for just about any Amiga floppy drive
inside the A1000 case (not so for the A500). The external floppies were
identical mechs - the difference being a small circuit board that had a
chip or two to generate the ID signal the ROMs looked for to ident 3.5"
drives from 5.25" drives (unlike most computers, the Amiga could fiddle
the control lines and determine the external disk type).
> You will need TWO disks -- Kickstart and Workbench, 1.3 was the latest
> version that worked in the A1000. A third disk was supplied, that also
> had Amiga Basic, ABasic.
I think by the time 1.3 came out, the OS was up to 4 or maybe 5 disks
("Extras", "Fonts"...) I'd have to go back and check. Not that it matters
to an unexpanded A1000, but 1.3 can autoboot a hard disk and 1.2 cannot.
There were also products to replace the WCS Daughter card - the Rejuvinator,
for example. It's worth looking inside the A1000 to see if one is in there.
One of the guys from a nearby club designed it. He gave us a big discount
on a bulk buy because he came over and talked about 8 of us through the
install. Among its features is a 40-pin ROM socket (works with KS2.0 for
sure), a Fat or Fatter Agnus, and a minimal-function video slot for A2000
genlock cards, etc).
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 02-Jul-2004 03:10 Z
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Ethan.Dicks_at_amanda.spole.gov http://penguincentral.com/penguincentral.html
Received on Thu Jul 01 2004 - 22:55:15 BST