10 Aug
2013
10 Aug
'13
1:22 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-
bounces at classiccmp.org] On Behalf Of Torfinn Ingolfsen
Sent: 08 August 2013 22:56
To: General Discussion: On-Topic Posts Only
Subject: Fixing a Micropolis 1375 drive?
Hi,
A friend of me recently got a nice machine, a ND (Norsk Data) Satellite
Network Gateway.
(For people wondering about Norsk Data, check www.ndwiki.org) Anyway,
the drive in the machine is a Micropolis 1375 scsi drive.
And it stopped working. Of course it was "goo" on the head assembly
bumper(s). He has removed that and inserted a paper strip, but the drive
still
doesn't work.
Are there any other known failure modes for the Micropolis 1370-series
drives?
Description of symptoms (translated by me, any errors are mine):
- the drive spins up
- disk activity light (on machine?) turns on
- after a while the drive reduces RPM noticeably for about a second the
last
two steps repeats, and after about 5 minutes the drive
spins down and
stops
rotating.
But the disk activity light still blinks, and a faint clicking noise is
heard
every
time the disk activity light is on.
He also wonders if moving the electronics from a different 1375 drive to
his
drive would work, assuming he could get one that
works. Has anyone done
this?
(those refurbished Micropolis 1375 drives at about USD 400 looks a bit
suspicious - the technical data is different)
--
Regards,
Torfinn Ingolfsen,
Oslo, Norway
I have no experience of the SCSI drives but do have some with the Micropolis
1325 (RD53). You don't say if the heads actually move when it spins up. I
found with the RD53 after removing the goo you have to make up the thickness
of the original rubber bumper with the strips of paper. Even then I think
that sometimes the goo has been so bad that it has gummed up the inner
mechanism where you can't see or reach and so the head assembly resists
movement a bit too much. I would love to know if the head assembly can be
removed to allow the goo to be cleaned up properly.
Regards
Rob