They just made the keyboard cable longer.
The hardware isn't changed.
I'll send you some pictures about the modefication (tomorrow).
-Rik
-----Oorspronkelijk bericht-----
Van: cctalk-bounces at
classiccmp.org
[mailto:cctalk-bounces at
classiccmp.org] Namens Tony Duell
Verzonden: maandag 5 januari 2009 21:15
Aan: cctalk at
classiccmp.org
Onderwerp: Re: HP9836 hardware. software and manuals availability
For the
uninitated on Classiccmp, this is a 68000-based computer
(OK, there was a very late version with a 68010 in it...). It's a
desktop machine with a built-in keyboard
Not always I mine has a separated keyboard (photo at
www.hpmuseum.net)
And this is an 9836? Original HP? I have never heard of that version.
What is the interface between the keyboard and the rest of
the machine?
The all-in-one 9836's keyboard is lust a matrix of switches
(and a rotary encoder for the twiddleknob) with a 34 way
ribbon cable linking it to the motherboard. The motherboard
cotnains an 8041 microcontroller adn a bit of TTL to scna the
keyboard.
Of course other machines in the 9000/200 family used either a
custom serial interface for the keyboard (HP9816) or HP-HIL (HP9817).
Waht dows your separate-keyboard 9836 use?
-tony