17 Sep
2011
17 Sep
'11
2:12 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-
bounces at classiccmp.org] On Behalf Of Tony Duell
Sent: 17 September 2011 20:51
To: cctalk at classiccmp.org
Subject: Re: Opening up an RD54 Disk
I've
just
I have tried that several times and can't
find anything except a
strange red plastic plug which comes out very easily.
Isn;t this actually a Maxtor drive? If it's anything like the dead one pulled out of the junk box, there are screws under the
label (and also a
red
plastic breaterh plug, which you cna leave0.
The drive I found (an XT1140 IIRC) has 12 screws aroudn the edges of the
cover which take a TX8 driver and 2 screws under the label which take a
TX10 driver. One of the later is over the spindle, the other over the
pivot for
the head arms. The latter was _very_ tight and took a
lot of shifting!
For those who are interested, it's a voice coil positioner (what a
suprise) operating a swinging arm assembly carryign the heads. There's
aslo
a hed locking solenoid. On the flexipring to the heads
are 4 custom ICs
which
look to be 2 pairs of indentical ones,. Obviously head
preamplifiers and
maybe write drivers too.
-tony
Yes, that matches exactly what I found.
Regards
Rob