2 Jan
2021
2 Jan
'21
2:48 a.m.
When that has happened to MFM disks of mine it has been because for one reason or another
the heads have not moved and found track 0. Why they aren't moving could be more than
one reason. They could be stuck, or there could be some other problem that is preventing
them getting the power needed to move.
Regards
Rob
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Mattis Lind via
cctalk
Sent: 02 January 2021 08:59
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: ICL PERQ 2 T2 Micropolis 1303 spinning down.
I have a nice ICL PERQ 2 T2 that I am going to start working with now.
First thing was to try to image the hard drive. It is a Micropolis 1303. It spins
up but when it reaches what I think the correct speed it immediately spins
down. Usually I think there would be a click and then the heads would
recalibrate. But there is no click and no head movement.
I really would like to make an image of the drive. What are your thoughts?
Are the heads sticking?
Some kind of solenoid that is not releasing the heads? Not properly up to
speed? (but it sounds like the speed is right)
/Mattis