6 Nov
2011
6 Nov
'11
1:16 p.m.
Hi,
On Sun, Nov 6, 2011 at 7:40 PM, allison <ajp166 at verizon.net> wrote:
I've done this many times, as in more than 6 and
have a stack of them to be
worked on yet.
That sounds good, the "many times" part I mean.
No clean room, however a clean space and no flying
dust. ? ?I just open them
up and apply
power and unstick the heads while rotating. I must be rotating as the heads
will slide across
the disk in contact. ?I've had that happen with no problems I try to avoid
that.
How do you unstick the heads? Do you simply poke at them with your
finger or a suitable instrument?
(I tried finding pictures of the insides of a Micropolis 1325, but failed)
?If that results in the heads doing a servo seek and
settling on track 000 then I needs to
deal with the gummy bumper, tweezers and sine disterity to grab the bumper and remove
it
or place a piece of adheasive paper on it so when the head retract I do not have to
repeat the process.
It sounds like placing a piece of adhesive paper on it is the easiest
way. Since I only want to do this once; can I just any kind of
adhesive paper, or is there something I need to watch out for?
This assumes the HDA is otherwise ok, and same for
electronics.
The previous owner claims that he had the machine boot from this drive
before, so if nothing bad has happened since then it should still be
ok.
When connected to power, the disk spins up, then turns off after a minute or so.
I've written this up in comp.os.. (i forget) and
others have as well over
the years.
I tried googling for repair hints, but didn't find it. Perhaps my
google-fu isn't strong enough.
This works because the disk spinning has great centrifical force and
anything landing
is destined for the perimeter where there is a circulation filter to pick it
up. ?This is why
the drive spins up before loading the heads (also to have the needed airflow
for the
heads to fly.).
Cool, I didn't know about the airflow part.
Also whats the worse that can happen, you kill an
otherwise unusable disk?
Agreed.
However, this is the only hard drive in a ND-100/CX machine[1] that I
have, and I don't have any other ST-506 hard drives.
Supposedly, there is an operating system and an application (simulator
/ demo) on the hard drive, so I'm interested in preserving that.
References:
1) http://sites.google.com/site/tingox/nd_3392-1669
--
Regards,
Torfinn Ingolfsen