Museum AT&T Unix machine
If anyone has the expertise to look at and repair the museum AT&T unix machine, it would be much appreciated. The symptoms seem to be that it is endlessly looking for a boot sector and not finding it (based on the symptoms and looking it up on a website). There is a green screen with characters slowly going across endlessly. Please contact Evan or myself if you have the ability and time. -- ========================================= Jeff Brace Vice President Vintage Computer Federation
On Fri, Aug 23, 2019 at 11:55:19PM -0400, Jeffrey Brace via vcf-midatlantic wrote:
If anyone has the expertise to look at and repair the museum AT&T unix machine, it would be much appreciated. The symptoms seem to be that it is endlessly looking for a boot sector and not finding it (based on the symptoms and looking it up on a website). There is a green screen with characters slowly going across endlessly. Please contact Evan or myself if you have the ability and time.
Is this the 3B1/7300? Have you tried booting the diag floppy? I will bring one. Most likely the hard drive has died. The drive is normally a Miniscribe 6085 MFM full height 70M drive.
One other thing that probably should be done is to replace the clock battery or remove it if you don't care about the clock to prevent the damage from leaking. Its somewhat of a pain to open the case so good to do it at the same time. I normally use the BR series vs CR since they are supposed to be less corrosive chemestry so less likely to leak though a little less capacity. It's soldered to the motherboard. I don't think I have any around. https://www.flickr.com/photos/geekmuseum/sets/72157625198596086 On Sat, Aug 24, 2019 at 07:19:30AM -0400, David Gesswein via vcf-midatlantic wrote:
On Fri, Aug 23, 2019 at 11:55:19PM -0400, Jeffrey Brace via vcf-midatlantic wrote:
If anyone has the expertise to look at and repair the museum AT&T unix machine, it would be much appreciated. The symptoms seem to be that it is endlessly looking for a boot sector and not finding it (based on the symptoms and looking it up on a website). There is a green screen with characters slowly going across endlessly. Please contact Evan or myself if you have the ability and time.
Is this the 3B1/7300? Have you tried booting the diag floppy? I will bring one. Most likely the hard drive has died.
The drive is normally a Miniscribe 6085 MFM full height 70M drive.
On Sat, Aug 24, 2019 at 8:19 AM David Gesswein via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
One other thing that probably should be done is to replace the clock battery or remove it if you don't care about the clock to prevent the damage
Let me know what kind of battery it is and I will buy it.
from leaking. Its somewhat of a pain to open the case so good to do it at the same time. I normally use the BR series vs CR since they are supposed to be less corrosive chemestry so less likely to leak though a little less capacity. It's soldered to the motherboard. I don't think I have any around.
https://www.flickr.com/photos/geekmuseum/sets/72157625198596086
On Sat, Aug 24, 2019 at 07:19:30AM -0400, David Gesswein via vcf-midatlantic wrote:
On Fri, Aug 23, 2019 at 11:55:19PM -0400, Jeffrey Brace via vcf-midatlantic wrote:
If anyone has the expertise to look at and repair the museum AT&T unix machine, it would be much appreciated. The symptoms seem to be that it is endlessly looking for a boot sector and not finding it (based on the symptoms and looking it up on a website). There is a green screen with characters slowly going across endlessly. Please contact Evan or myself if you have the ability and time.
Is this the 3B1/7300? Have you tried booting the diag floppy? I will bring one. Most likely the hard drive has died.
The drive is normally a Miniscribe 6085 MFM full height 70M drive.
-- ========================================= Jeff Brace Vice President Vintage Computer Federation
On Sat, Aug 24, 2019 at 7:20 AM David Gesswein via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
On Fri, Aug 23, 2019 at 11:55:19PM -0400, Jeffrey Brace via vcf-midatlantic wrote:
If anyone has the expertise to look at and repair the museum AT&T unix machine, it would be much appreciated. The symptoms seem to be that it is endlessly looking for a boot sector and not finding it (based on the symptoms and looking it up on a website). There is a green screen with characters slowly going across endlessly. Please contact Evan or myself if you have the ability and time.
Is this the 3B1/7300?
Yes. Have you tried booting the diag floppy? I will bring
one. Most likely the hard drive has died.
I do not know if we have that floppy.
The drive is normally a Miniscribe 6085 MFM full height 70M drive.
-- ========================================= Jeff Brace Vice President Vintage Computer Federation
participants (2)
-
David Gesswein -
Jeffrey Brace