[comp.sys.amiga] Missing Disk Drive

4203_5257@uwovax.uwo.ca (03/14/90)

This may be the silliest question posted so far this year, but...
what does IMHO stand for?  It's starting to be used very frequently on this
newsgroup, and I'm unable to make a good guess at it.

While I'm at it, I do have a rela question that I hope someone will be able to
answer (CATS?).  I bought an Amiga 3.5" drive second-hand from someone (its 
Commodore's own), and he had let a friend of his "convert" it so that he could
use it from his bridgeboard.  I'm using it as a 2nd drive on an Amiga 500.

I had to set the jumper to re-enable the disk-change signal, because it had
been un-set by this guy's friend.  For awhile I thought everything was fine
until I tried to use a few copy programs with it.  The OS seems able to live
with the drive, and happily thinks of it as DF1:.  Two programs don't recognize
the existence of the drive, though.  They are Dos-2-Dos and Marauder.  There
was also a PD copier of some sort (can't remember the name) that didn't
recognize the drive.  From this, it seems pretty clear (?) that programs which
access the drive at a lower level than regular OS calls are having trouble
finding it.
When I opened up the drive, I found that it had Mitsubishi guts.  The three
sets of jumpers that I could see are set like so:

     |
a)   DS  0  1  2  3  MX                        (Jumper selecting `0')

     |         |
b)   MM MS  IS IU                              (MM selected.  IU selected.)

     |
c)  (DC)  DC  SR                               (Disk-change enabled.)

I tried fooling with (a) and (b), but that produced all sorts of strange and
frustrating results upon re-boot.

Thanks,

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| Steve van der Burg       |``...she may blow your mind |  Svan@uwovax.uwo.ca |
| Univ. of Western Ontario | like an old transistor...''| Home: (519)472-6686 |
| London, Ontario, Canada  |       -- Michelle Shocked  |                     |
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