On 2001/03/27 at 6:09am +1000, "Phil Guerney"
<guerney(a)bigpond.com> wrote:
I was told by the HP experts on this list when I
first asked (a year or two
ago) that there is no way known to hook up an external monitor in place of
the original that plugged into those two special ports on the top of the
9845.
OK, I got curious and found the manuals. The short answer: you're screwed.
But you would think that this monitor was
basically a standard TTL or
analogue monitior of some sort and that someone might have the technical
details to wire a replacement from the plugs?
Major parts of the display logic (character generator etc.) are in the
monitor case, not the main box.
A bit hard to use without the
monitor unfortunately and in 1980 this was my most DESIRED computer, so I
would love to get this one going again.
Apparently, you need only attach a "turn-on fixture", part 09845-66547,
to the left monitor leg, execute "PRINT ALL IS 0", and press the 'PRT
ALL' key: then you can use the machine with the printer alone... yeah,
good luck finding one.
Interesting. I wonder if you could do the same thing with an external
monitor connected via HP-IB interface or if a monitor (or the turn-on
fixture) is required for the system to "boot"?
Joe