[rescue] Sun 3/50 BTW (and Sun 2 keyboard)

[Ian Finder]

Jon, thanks for the response.

I too have the switchable ECL / TTL framebuffer in my 2/120. I was,
however, under the impression that the resolution wouldn't work for the
1600x1200 display. Perhaps the ECL sun display can multisync? This is kind
of what I was getting at. I thought the 2 was 1152xSomething resolution.
Could be wrong...

Cheers,

- Ian

On Mon, Feb 26, 2018 at 2:19 PM, Jon <jlo at ludd.ltu.se> wrote:

> On 26 February 2018 at 22:26, Ian Finder <ian.finder at gmail.com> wrote:
>
> > Earl, et. al, a few questions-
> >
> > 1) Can the 1600x1200 Sun B&W ECL monitor, which is what I appear to have,
> > work with the Sun 2/120
> >
>
> Hello,
>
> It should work with at least one of the monochrome Sun 2/120 framebuffers.
> The Sun Hardware Reference ( http://www.sunhelp.org/faq/sunref3.html )
> says the 501-1003 only supports TTL but I don't believe this is true
> because I
> have that board and it can be jumpered for either TTL or ECL.
> Don't know about the 501-1052 board the reference claims supports both
> TTL and ECL. Maybe that's true or maybe they mixed up the two?
>
> 2) Does anyone know common causes for the monitor in (1) to dim?
> > 3) Does anyone have the pinouts for the mythical type 2 <-> type 3
> keyboard
> > & mouse passive adapter? I would like to construct one.
> >
>
> Since I'm in the same situation as you regarding a severe lack of type-2
> keyboard I'm planning on doing this as well.
> No pinout for the official adapter, but the pinout for the 501-1003 board
> can be
> found in the schematics in the engineering manual at:
> http://bitsavers.org/pdf/sun/sun2/800-1187-01_2-120_Video_
> Board_Engr_Sep84.pdf
> Page 19, connectors J1900 & J1901. Pinout for type-3 can be found at:
> http://www.hardwarebook.info/SUN_Keyboard/Mouse
>
>
> > 4) Does anyone have a spare VME framebuffer for a 3/260, and a spare sun
> 3
> > mouse?
> >
>
>
>
> > 5) What's the best way to do a SunOS 3 install without employing the use
> of
> > a tape drive?
> >
>
> If you have the SCSI board, I would try to hook up a SCSI drive to another
> Sun machine (probably a sun-3 with Sun UNIX 3.x because the filesystem
> might have changed) and get the miniroot etc onto the drive from there and
> then move the drive back try to boot and install.
> I don't have the SCSI board (it seems to be very rare indeed) but I do have
> a Xylogics 450(?) board to interface with an SMD drive.
>
> I suppose the above scheme would work with an SMD drive as well as long
> as you have another Sun machine with SMD support, which I don't.
> But I do have an ethernet board so I've been unsuccessfully trying to do a
> network install. Something goes wrong very early and I can't even get the
> diag to transfer beyond a few bytes.
> The problem could either be with the sun-2 ethernet board or, as I'm
> hoping,
> something wrong with the netbsd/modern network I'm trying to boot from.
> My current plan is to get a Sunos3 installation (need ND support to netboot
> sun 2/120, support removed in 4.x!) onto one of my sun-3 machines and
> maybe that will work better for netbooting since age difference is much
> less...
>
> Lastly (might as well take this chance to beg), I only have 1MB of RAM in
> my sun-2 which restricts me to running only Sun's 1.x releases (and with
> a shoehorn), if I ever get past the install issue.
> Guess no one happens to have some spare RAM board they're willing to
> let go to a good home? With compensation? ^_^
>
> - Jon
> _______________________________________________
> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.finder at gmail.com