[SunRescue] parts I'm parting with!

Adam Kropelin akropel1 at rochester.rr.com
Fri Sep 15 17:32:46 CDT 2000


At 12:53 PM 9/15/2000 -0400, you wrote:
>If you go to www.reputable.com and follow the monitor links there is a page
>that details how to convert the SGI tubes.
>
>Mike N

Actually, this info is what sparked (or is it 'Sparced'?) my interest last 
year.  However, the 20D11 is completely different internally than what the 
www.reputable.com info details, and so I had to devise my own mod.

As Mike Hebel requested, I'll try to put together some info with pictures 
this weekend. I just happen to have a digital camera on "loan" from work, 
though the picture quality is not so great...

--Adam


>----- Original Message -----
>From: "Adam Kropelin" <akropel1 at rochester.rr.com>
>To: <rescue at sunhelp.org>
>Sent: Friday, September 15, 2000 7:38 AM
>Subject: Re: [SunRescue] parts I'm parting with!
>
>
> > At 11:26 PM 9/14/2000 -0400, you wrote:
> > >Hey folks!
> > >
> > >I posted an inventory before, but earlier tonight some folks
> > >were asking about parts I still haven't been able to give away :^)
> >
> > <snip>
> >
> >
> > >. 21" SGI Monitor (GDM-20D11) Works pretty swell.
> >
> > <snip>
> >
> > >WANTED PARTS:
> >
> > <snip>
> >
> > >. 21" Sun monitor
> >
> > With a little soldering, I have successfully modified my 20D11 to work
>with
> > Suns, and if you're willing to do the same, you can turn that SGI monitor
> > into the Sun monitor you're looking for.
> >
> > Since the 20D11 expects sync-on-green, what you have to do is connect the
> > separate sync pin used by Sun (and others) to the sync separator circuit.
> > This is as simple as soldering in one resistor on the input board at the
> > back of the monitor. The connector on the monitor conveniently has all
>pins
> > soldered to the PCB even though most of them aren't used. I can open mine
> > up again if you want and give you specific instructions on what I did. And
> > yes, it works with both Suns and SGIs after the mod, though you have to
>use
> > Sun or SGI cables as appropriate. And no, it still won't work with a PC, I
> > suspect because of the limited sync range, or maybe my HD15-to-13W3
>adapter
> > is bad.
> >
> > I don't remember the sync range of the 20D11, but I have tested my
>modified
> > one with a stock Indy and a stock SS2+cg6, and it works great.
> >
> > --Adam
> >
> > _______________________________________________
> > Rescue maillist  -  Rescue at sunhelp.org
> > http://www.sunhelp.org/mailman/listinfo/rescue
> >
>
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