27 Jun
2009
27 Jun
'09
7:52 a.m.
-----Oorspronkelijk bericht-----
Van: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] Namens Tony Duell
Verzonden: dinsdag 23 juni 2009 19:36
Aan: cctalk at classiccmp.org
Onderwerp: Re: How to lose most of an an entire collection in one shot
The interface board (that fits in place of the graphics
board) may well be. Somwehre I have an HP box, the same size
as a 9000/340, which appears to be some kind of grapghics
processor (there's an i860 on one of the boards and lots of
ASICs IIRC). That came with an HP9000/400 series machine, but
it may well (a) not have gone with that one and (b) might
work on the 9000/340 too.
The DIO slot seems normal. There was a 98625 (high speed HPIB
using the Medusa chip) with it. I assume that went in said DIO slot.
Oh that doesn't sound too bad. I don't recognise that serial
chip off the top of my head, but it might be something standard.
For some inexplicable reason, HP used the 8250 in the
9000/200 series. A very odd choice given that it's a 68000 machine...
It is done ;-)
Url http://www.flickr.com/photos/hp-fix/
>
> Right... As I said, I've only been inside the 9000/340 (I have a
> number of those that I was given, all with high-res video boards,
> and IIRC, 16M RAM.). Somewhere I have an interface board for an
> external video box, the different back panel that goes with that,
> and a little cardcage you can fit to that backpanel that
has a DIO
slot).
Is it for the Graphic coprocessor ? > > The interface board contains 1 big pga
i/o chip
> (propriarity hp) but
> > the rest is TTL and some LSI-chips.
>
> Custom LSI, or things I might have heard of? It's not the PGA
> package I oject to per se, rather it's the fact I can't
get data or
replacements for some of the ICs.
One custom LSI I think it's the I/O controller.
The others are Lance Ethernet Ti HP-IB controller HIL-chip, serial
controller 1820-3623 and some other standaard interface chips. The
only one that would bother you would be the HP 1TQ4-0401.
I'll make some pictures this week and put them on flickr so you can
look at them.
Thanks... Hardware problems are always 'fun' ;-)
Indeed. Well, as everyone knows by now, my primary interest
is hardware...
-tony