17 Jun
2002
17 Jun
'02
6:08 p.m.
I have a floppy problem with a Lisa 2/10 (MacXL ?): After inserting a
disk, a dialog appears (MacWorks XL) stating that the disk isn't
formatted (it is). If I chose to eject the disk, the spindle motor
continues to rotate. This doesn't happen during all ejects - it's an
intermittent problem, but I have never been able to read from the
floppy. This is a 400K drive.
1) I have cleaned the stepper cam, the head, and the ejection path and
have lubricated various parts. The head travels properly and the
ejection motor is functional. Where should I proceed?
2) The front fascia doesn't align properly due to the front of the 400K
floppy protruding a few millimeters. The front will snap into place
properly on the left 'catch', but is bulging out on the right catch. I
can't see why this is so, as the drive case is flush with the chassis,
and there is no possibility of the floppy sitting too far forward due to
the recessed mounting screws. The floppy appears to be just too long
(?) Has anyone else seen this.
3) Mouse related: How is the mouse supposed to secure to the connector
on the motherboard? The mouse has the standard two thumbscrews, but the
motherboard is lacking the metal jacket that would normally contain two
nuts to recieve the connector screws - it's just the black plastic DB-9
connector. Something seems missing in this picture. Any clues?
Thanks,
Jeffrey H. Ingber (jingber _at_ ix.netcom.com)
18 Jun
18 Jun
12:38 p.m.
3) Mouse related: How is the mouse supposed to
secure to the
connector on the motherboard? The mouse has the standard two
thumbscrews, but the motherboard is lacking the metal jacket that would
normally contain two nuts to recieve the connector screws - it's just
the black plastic DB-9 connector. Something seems missing in this
picture. Any clues?
Does the black connector housing have ridges on the top and bottom that
prevent a normal DE-9 from mating with it? Or signs that such ridges have
been filed off? If so, you have an early backplane. I wouldn't expect to
see that in a 2/10 or XL. The early Lisa mice used a strange DE-9 variant
that I can't easily describe. In order to use the later mice on it, you
had to either file off the ridges on the Lisa connector, or cut notches
in the metal shell of the mouse connector, and either way you ended up
with nothing to retain the connector.
4:43 p.m.
On Tue, 2002-06-18 at 13:38, Eric Smith wrote:
Does the black connector housing have ridges on the
top and bottom that
prevent a normal DE-9 from mating with it? Or signs that such ridges have
been filed off? If so, you have an early backplane. I wouldn't expect to
see that in a 2/10 or XL.
Not that I'm aware of, but I'll take a closer look. This is definitely
a later backplane as it lacks an external parallel port. I'm familar
only from memory of the earlier mice having some sort of 'clip' that
held the mouse in place. FYI - I have a M0100 mouse which I understand
isn't the 'proper' mouse.
To better visualize the mechanics of this, imagine a VGA connector (on
the card side) whithout the metal sheath, just the bare plastic - that's
what I have on the motherboard. The mouse doesn't appear to have been
modified - it has what would appear to be (physically) identical to a
DB-9 serial port (female).
So, it appears that something was modified on the motherboard connector,
but without some reference I don't know what's missing.
The early Lisa mice used a strange DE-9 variant
that I can't easily describe. In order to use the
later mice on it, you
had to either file off the ridges on the Lisa connector, or cut notches
in the metal shell of the mouse connector, and either way you ended up
with nothing to retain the connector.
Jeffrey H. Ingber (jingber _at_ ix.netcom.com)
8233
days inactive
8234
days old
2 comments
2 participants
participants (2)
-
eric＠brouhaha.com -
jingber＠ix.netcom.com