Date   : Tue, 28 Jul 1998 18:27:20 +0100
From   : Crispin Boylan <viewtronix@...>
Subject: Re: Disk Drive Problem

At 13:17 28/07/98 EDT, you wrote:
>I've got a Cumana twin DS 40/80 switchable disk drive (Mistubshi 4853's).
>Drive 0/2 work fine but when I try to use Drives 1/3, the light comes on but
>nothing happens.  I got these drives second hand about 7 years ago and
drive 1
>has never worked in that time but it worked for the previous owner but was
>never used.  The power/data cables are Ok, but there is a jumper missing that
>is in place on the other drive, it is in the position marked MM next to are
>two pins marked SM.  I've tried putting a jumper on both of these to no
avail.
>
>Does anybody have any ideas how to fix it. 

Hi
I have exactly the same problem on one of my disk drives, which happens to
be the same model.  THe problem seems to be a dicky head load solenoid, if
you open it up and have a look, you'll find that tapping the arm of the
solenoid will make it go down when the drive is accessed, but after you
leave it for a while, it will stop engaging again.  I've not yet solved
this, but I think a replacement would be ok, I've not managed to find one
though!

CHeers.
Cris.
The BBC Micro Games Archive
http://www.viewtronix.easynet.co.uk/beeb/