22 Mar
2016
22 Mar
'16
8:24 p.m.
I just acquired one of the guys w/o a display
Looking for the spec's of the display connector.
I have what I believe to be the pinout but nothing on timing, scan rates,
levels etc.
Other identification on the thing is
"1 MB Board internal set as 1st Card"
Upgraded to 9836CU
NO BATT / DOES NOT START / BOOT ?
Model ID tag 9836C / 2210A01010
-pete
23 Mar
23 Mar
3:14 a.m.
-----Oorspronkelijk bericht-----
Van: cctalk [mailto:cctalk-bounces at classiccmp.org] Namens Pete Lancashire
Verzonden: woensdag 23 maart 2016 4:24
Aan: General
Onderwerp: Looking for I/O specs HP 9000/236 - 9836CU
I just acquired one of the guys w/o a display
Looking for the spec's of the display connector.
I have what I believe to be the pinout but nothing on timing, scan rates, levels
etc.
Other identification on the thing is
"1 MB Board internal set as 1st Card"
Upgraded to 9836CU
NO BATT / DOES NOT START / BOOT ?
Model ID tag 9836C / 2210A01010
-pete
Pete,
Tony, reverse engineered the HP 9836C (and a lot of other HP equipment) he made the
diagrams available through the HPCC.
It's part from a great collection of HP diagrams including calculators computers and
peripherals etc..
http://www.hpcc.org/cdroms/index.html
-Rik
6:13 a.m.
Tony, reverse engineered the HP 9836C (and a lot of
other HP equipment) he
made the diagrams available through the HPCC.
It's part from a great collection of HP diagrams including calculators computers
and peripherals etc.. http://www.hpcc.org/cdroms/index.html
It was decided by the HPCC committee to no longer send out physical CD-ROMs for
this. Instead members (only) can download the latest version free of charge. A year's
membership of HPCC is not much more than the only cost of the CD-ROM, and you
have the other benefits of HPCC.
The HP9826/36 schematics can be downloaded from the Australian HP museum,
http://www.hpmuseum.net/
They are under the HP9826, there is so much in common between the machines that
I produced one set of diagrams for both. I did the 3 machines I have, a 9826, a 9836A
and a 9836CU. Yes, I did include monitors, etc.
-tony
6:08 a.m.
I just acquired one of the guys w/o a display
Looking for the spec's of the display connector.
I have what I believe to be the pinout but nothing on timing, scan rates,
levels etc.
If it is a CU -- that is it has a colour video board set in it -- then it is a bit
strange. There are a pair of TTL level syncs, I can't remember the frequencies
but something tells me it's close to TV. It's also easy to measure with a
frequency
counter.
The 3 colour signals are analogue current sinks on the machine, not voltage
level outputs. No normal monitor will connect directly. You need a bit of analogue
electronics to sort it out.
Other identification on the thing is
"1 MB Board internal set as 1st Card"
This may mean somebody has fitted a 1M RAM card into
the normally unused internal slot and that it is set for the top of memory
(which would be logical).
You need to take off the cover (the 4 largest screws on the bottom, behind
the keyboard area) and see just what is in there.
Upgraded to 9836CU
Probably the CPU board was replaced by the 68010/MMU one.
NO BATT / DOES NOT START / BOOT ?
May mean it doesn't have the battery backup option (I've never seen it)
and that there is some other fault too...
-tony
3196
days inactive
3196
days old
3 comments
3 participants
participants (3)
-
ard＠p850ug1.demon.co.uk -
hp-fix＠xs4all.nl -
pete＠petelancashire.com