DG Eclipse available... (Second try)

Mark Davidson medavidson at mac.com
Tue Apr 19 18:50:49 CDT 2005


On Apr 19, 2005, at 2:56 PM, Tom Jennings wrote:

> On Tue, 19 Apr 2005, Mark Davidson wrote:
>
>> In any case, you can see photos of the machine in my garage at 
>> http://homepage.mac.com/medavidson/PhotoAlbum2.html
>
> Cool! Looks like my nova4 setup! I have a 602x tape drive too
> (vacuum column).  It's likely that the vacuum column switches are
> dead, they have a latex membrane. Don't throw them out! I was able
> to repair most of mine.
>
I'll let you know.  My understanding is that the machine was working 
and functional when it was disconnected (probably around October of 
last year).  However, I promise not to throw anything out!  My big 
question is how to remove the front or side panels.  I know the front 
panels should "pop off", but I tried pulling one or two and they are on 
tight.

> Do you have any media for it?
>
>
Not yet.  I've had two gracious offers to send me boot tapes, and I'm 
also in contact with someone who has a large collection of DG tapes 
that will hopefully be able to help.  I should have an AOS/VS boot tape 
by next week.

My goal is to do the following:

1)  Remove the panels and check the connections.
2)  Check the boards and make sure they are seated.
3)  Pull out the drive and check the heads... and pray they locked the 
heads down; once that's verified, I'd unlock them
4)  Apply power individually to the units (tape, CPU, disk).  Make sure 
they power up ok.
5)  Connect a terminal and try to get the thing to boot.

Suggestions are most welcome... it's been years since I worked with one 
of these beasts.  I'm only a "semi" hardware guy... I can do some 
checking, but I don't have a lot of diagnostic experience with these 
machines.

Mark



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