1 May
2009
1 May
'09
4:15 a.m.
I'm trying to get an old M4 9905 tape drive running with my PDP-11/73's
Pertec interface and I'm not having a ton of luck. Currently attempting
to boot from known-good media spins the reels a bit and then gives me an
"Error 21 - Drive Error" from the 11.
I want to check that the drive is configured correctly. There are
evidently settings that can be tweaked by running internal diagnostic
programs from the front panel, but I don't know what the codes are. I
haven't had much luck finding a manual on the 'net (Bitsavers has
manuals for the 9914, which is similar but not similar enough that the
diagnostic programs are the same.)
Anyone have a manual or a diagnostic listing for this drive?
Thanks,
Josh
6 May
6 May
4:03 a.m.
I think I have a service manual for this one, let me know if you haven't
gotten a response yet.
Jay
17 May
17 May
6:40 p.m.
Jay West wrote:
> I think I have a service manual for this one, let me know if you haven't
> gotten a response yet.
And Josh wrote...
Yours is the first response I've seen -- if you do
have the manual, I'd
love a scan of it (or just the diagnostics portions...)
I went basement-diving for this stuff. I found the following
documents/manuals:
M4 data 8900, 9800, 9903 diagnostics quick reference
Jumper config sheet for M4 9903 SCSI tape interface
M4 9900 Series Tape Drive Field Service Manual
I could have sworn that I gave these to Al to scan for bitsavers, but I
don't see them up there. Think this is what you need for a 9905?
Jay
7:47 p.m.
Jay West wrote:
I went basement-diving for this stuff. I found the following
documents/manuals:
M4 data 8900, 9800, 9903 diagnostics quick reference
Jumper config sheet for M4 9903 SCSI tape interface
M4 9900 Series Tape Drive Field Service Manual
I could have sworn that I gave these to Al to scan for bitsavers, but
I don't see them up there. Think this is what you need for a 9905?
Maybe... it
might be close enough -- what's the diagnostic program # for
setting drive options listed in the quick reference? I can try it on my
9905 and see if it lets me set parameters, if it does then it may be
what I need...
Jay
8:05 p.m.
Josh wrote....
Maybe... it might be close enough -- what's the
diagnostic program # for
setting drive options listed in the quick reference? I can try it on my
9905 and see if it lets me set parameters, if it does then it may be
what I need...
Program # 09 select high speed mode
Program # 10 select low speed mode
Program #27 select 800bpi
Program #28 select 1600bpi
Program #29 select 3200bpi (error code 98 means 3200 not available)
Program #30 rewind tape
Program #40 display prom rev No's
Program #11 Set 'n'
Program #18 write 'n' short records stop/start mode
See if those are close....
Jay
9:47 p.m.
Jay West wrote:
Josh wrote....
Just tried them, those seem to be correct for the 9905 as well.
Huzzah! When you get a chance, if you could scan the quick reference
I'd really appreciate it. I need the diagnostic codes to change
internal drive settings... this drive used to be configured for the SCSI
interface and I need to reconfig it so the Pertec interface works properly.
Thanks again,
Josh
Maybe... it might be close enough -- what's
the diagnostic program #
for setting drive options listed in the quick reference? I can try
it on my 9905 and see if it lets me set parameters, if it does then
it may be what I need...
Program # 09 select high speed mode
Program # 10 select low speed mode
Program #27 select 800bpi
Program #28 select 1600bpi
Program #29 select 3200bpi (error code 98 means 3200 not available)
Program #30 rewind tape
Program #40 display prom rev No's
Program #11 Set 'n'
Program #18 write 'n' short records stop/start mode
See if those are close....
Jay
5713
days inactive
5729
days old
6 comments
2 participants
participants (2)
-
derschjo＠mail.msu.edu -
jwest＠classiccmp.org