24 Sep
2002
24 Sep
'02
6:28 a.m.
From: Don Maslin <donm(a)cts.com>
First off, Glen, is it an 820 or an 820-II? Since you
have been in to
it, you should recall whether there is a daughter card that plugs in
vertically in the right rear quadrant of the motherboard. If it is
there, you have an 820-II.
Cool! It's an 820-II.
Make sure that the heads are clean and that the guide
rails for the head
assembly are clean and VERY LIGHTLY lubricated.
The drive is scheduled for a good cleaning this weekend ;>)
There is a program named MFT45.COM (also MFT48.COM)
that is capable of
single drive copy. It is a little tedious because of disk jockeying,
but it does do the job. MFT stands for Multiple File Transfer.
More cool -- I'll check the diskettes that came with it to see if this
program is present.
> --> Some of the utilities on the boot
diskettes (FMT, for example)
refer to
hard disk
drives. What's involved in attaching a hard drive to this
system?
If an 820, it is not a particularly reasonable thing to try. If an
820-II, easy if you can find the Xerox add ons. Rather more difficult
otherwise. > --> The flimsy "User Manual" which I
have states that the RS232 port
may be
configured to
attach to a terminal or to a modem. How?
Probably switching the port from DTE to DCE pinout. 
24 Sep
24 Sep
2:04 p.m.
On Tue, 24 Sep 2002, Glen Goodwin wrote:
Would you happen to know the model number of the Xerox external HDD unit?
IIRC, it is an external cabinet called the Disk Expansion Module. Also
contains a 5.25" drive.
- don
Sure, but I'm reluctant to make any internal changes w/o docs.
As always, thanks, Don!
Glen
0/0
From: Don
Maslin <donm(a)cts.com>
First off, Glen, is it an 820 or an 820-II?
Since you have been in to
it, you should recall whether there is a daughter card that plugs in
vertically in the right rear quadrant of the motherboard. If it is
there, you have an 820-II.
Cool! It's an 820-II.
Make sure that the heads are clean and that the
guide rails for the head
assembly are clean and VERY LIGHTLY lubricated.
The drive is scheduled for a good cleaning this weekend ;>)
There is a program named MFT45.COM (also
MFT48.COM) that is capable of
single drive copy. It is a little tedious because of disk jockeying,
but it does do the job. MFT stands for Multiple File Transfer.
More cool -- I'll check the diskettes that came with it to see if this
program is present.
> --> Some of the utilities on the boot
diskettes (FMT, for example)
refer to
hard disk
drives. What's involved in attaching a hard drive to this
system?
If an 820, it is not a particularly reasonable thing to try. If an
820-II, easy if you can find the Xerox add ons. Rather more difficult
otherwise. > -->
The flimsy "User Manual" which I have states that the RS232 port
may be
configured to attach to a terminal or to a modem. How?
Probably switching the port from DTE to DCE pinout. 
25 Sep
25 Sep
6:05 a.m.
There were two hard drive systems used. The later one used the
DEM(DEM-II?)which held 5-1/4 floppies and could hold a hard disk and a
controller card, I think. The earlier system used a combination single
floppy with Shugart 8 inch hard drive.
On Tue, 24 Sep 2002, Don Maslin wrote:
On Tue, 24 Sep 2002, Glen Goodwin wrote:
Would you happen to know the model number of the Xerox external HDD unit?
IIRC, it is an external cabinet called the Disk Expansion Module. Also
contains a 5.25" drive.
- don
Sure, but I'm reluctant to make any internal changes w/o docs.
As always, thanks, Don!
Glen
0/0
M. K. Peirce
Rhode Island Computer Museum, Inc.
Shady Lea, Rhode Island
"Casta est quam nemo rogavit."
- Ovid
From: Don
Maslin <donm(a)cts.com>
First off, Glen, is it an 820 or an 820-II?
Since you have been in to
it, you should recall whether there is a daughter card that plugs in
vertically in the right rear quadrant of the motherboard. If it is
there, you have an 820-II.
Cool! It's an 820-II.
Make sure that the heads are clean and that the
guide rails for the head
assembly are clean and VERY LIGHTLY lubricated.
The drive is scheduled for a good cleaning this weekend ;>)
There is a program named MFT45.COM (also
MFT48.COM) that is capable of
single drive copy. It is a little tedious because of disk jockeying,
but it does do the job. MFT stands for Multiple File Transfer.
More cool -- I'll check the diskettes that came with it to see if this
program is present.
> --> Some of the utilities on the boot
diskettes (FMT, for example)
refer to
hard disk
drives. What's involved in attaching a hard drive to this
system?
If an 820, it is not a particularly reasonable thing to try. If an
820-II, easy if you can find the Xerox add ons. Rather more difficult
otherwise. >
--> The flimsy "User Manual" which I have states that the RS232 port
may be
configured to attach to a terminal or to a modem. How?
Probably switching the port from DTE to DCE pinout.
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