HP Integral PC Manuals?

[Rik]

This article on the HPMuseum website tells it all 
http://www.hpmuseum.net/document.php?hwfile=2040 it is an issue of the HP 
Journal over the integral.
But it is electroluminescent ;-)
Witch ROM do you have a HPUX V1.0 or the V5.0 ?
There is some difference between them.

-Rik

----- Original Message ----- 
From: "Josh Dersch" <derschjo at msu.edu>
To: "General Discussion: On-Topic and Off-Topic Posts" 
<cctalk at classiccmp.org>
Sent: Friday, May 02, 2008 8:14 AM
Subject: Re: HP Integral PC Manuals?


> Tony Duell wrote:
>>> Hey all --
>>>
>>> Picked up an HP Integral PC.  Probably paid too much for it but 
>>> something about a luggable HP machine with a plasma display running 
>>> HP-UX from ROM seemed irresistible.  But I digress.
>>>
>>
>> It's certainly aa beautiful machine. Is it a plasma display, though?
> I don't know... you might be right that it's an electroluminescent 
> display, it's definitely a different color than the other plasma-based 
> machines I have (IBM P75, Compaq Portable 386).  Didn't cross my mind that 
> there were other display types :).
>
>> I thought I read it was an electroluminescent panel (basically exicitng a 
>> solid phosphor maaterial in an alternating electric field). I must admit 
>> that the display is the one part of the machine that I know ittle about, 
>> I did dismantle the display module in one of my 2 Integrals, there's a 
>> PCB on whcih most of the ICs are custom and unidentifiable, so I didn't 
>> go much further. The display, of course, was not made by HP.
>>
>>
>>> Has anyone archived the manuals for this thing?  I've been unable to
>>
>> The beast place to look for manuals for old HP machines other than 
>> handhelds is http://www.hpmuseum.net/. I think at least the (l)user 
>> manual is there. But be warned that 'my' scheamtic there is an early 
>> version, and I know I made an error in the address decoder circuit 
>> (basically I miscounted the address pins on the CPU at one point). The 
>> HPCC CD-ROM contains an updated version.
>>
>> I ahve never seen an HP techical manual for this machine, but would like 
>> to. Low level programming info would certainly be interesting.
>>
>>
>>> find anything in my searches on the internet.  Found some software 
>>> archives (and after lubricating the floppy mechanism I've been able to
>>
>> Actually, most of the time the dive is suffereing from hardened grease. 
>> It doesn't need lubricating, it needs taking apart and cleaning. I wrote 
>> an artice about this (in general, not Integral-specific) in the HPCC 
>> journal last year, I susepct you can purchase a copy of the appropriate 
>> issue from HPCC.
>>
> Yeah, I took it apart, cleaned out the old grease and applied a tiny 
> amount of light oil on various joints.  It seems to be working fine so 
> far.  That's about as far as I've the machine apart thus far.  I need to 
> give the printer a going-over and find some ink for it, haven't looked 
> into that yet.
>> Anyway you must have been inside the machine. How far did you get? The 
>> order I dismantle the machine in is :
>> Remove the ROM cover and take out the HP-UX ROM.
>>
>> Remove expanison cards, then 2 screws and the back cover
>>
>> Remvoe the rear screening plate (6 screws and a little plastic peg thing)
>>
>> Remove the floppy drive (unplug the 2 cables, then 3 screws and slide it 
>> out. Don't lose the eject button and spring.
>>
>> Undo the screws and free the logic assembly, Reach under it and unplug 
>> the cable from the display. Unplug the cables from the lower edge of the 
>> PCBs going to the fan and PSU/expansion box. Remove the 4 screws holding 
>> the front screen ot the logic module and unplug the THinkjet cabling. 
>> Then the whole logic unit comes out.
>>
>> Separate the logic boards from the chasiss plate.
>> Rmwove the PSU/expansion box -- take off the earthing nut on the 
>> expansion backplane, then the 4 screws at the rear sides and slide it out
>>
>> Take of the nuts and screws and take the cover off the PSU/expansion box. 
>> I find it easiest to lift the cover up as far as it will go, then unbolt 
>> the HPIB conenctr from the back and take the cover off with the HPIB 
>> cable.
>> Remove the Thinkjet controls. First remove the logic assembly mounting 
>> spacer to free the earthing tab. Then one screw and take the control out.
>>
>> Take out the printer mechanism. It's just a few screws.
>> I normally don't need to remove tbe display.
>>
> Cool, I'll keep those instructions  around for reference in case I need to 
> take it all the way apart (or start feeling adventurous).  My Integral is 
> very clean (even came with the "dummy" shipping floppy in the drive when I 
> got it) so I didn't feel the need to take it all the way apart to clean.
>> Anyway, the circuitry is a mix of standard and HP custom parts. The only 
>> chip I've not seen used elsewhere is the display controller. Other HP 
>> ASICs includ the HP-HIP interface chip, the Thinkjet controller, its RAM 
>> and ROM, and the HPIL chip that interfaces that to the rest of the 
>> machine.
>>
>> The keyboard connector is HP-HIL. There are 2 connectors, but they form 
>> part of the same HP-HIL chain, so you're limited to a total of 8 (or is 
>> it 7) devices. There's some circuity on the logic board to complete the 
>> chain if you honly have one connector in use (as is often the case, you 
>> just have the keyboard). It doesn't matter which connector you plug the 
>> keyboard into.
>>
>> The Thinkjet printer is conventional-ish. It uses the normal Thinkjet 
>> procrssor, Font ROM and RAM (which communciate with the processor using a 
>> Saturn bus (!)). The Thinkjet processor has a built-in HPIL interface, 
>> hence the 1L3 HPIL chip next to in o the board. YEs, there's a tiny HPIL 
>> loop to link the printer to the rest of the machine.
>>
>> The printer mechanism is standard but for the fact hat the cables are a 
>> lot longer than those in a normal Thinkjet. This is a particular problem 
>> wit hthe carriage flexiprint, which is thus not the same as the one in 
>> any other Thinkjet. And as is well-known,Thinkjet ink is corrosive. Never 
>> leave a cartridge in an Integral. I think if I ever need to replve the 
>> flexiprint in my Integrals, I'd use anormal-length one and kludge up some 
>> kind of extension.
>>
>> Do you ahve any expansion boards? The most useful ones are a memory 
>> expanison (1M is the largerst HP one I've seen, I posted an article here 
>> a couple of months back about expanding the 512K one to 1M), and an RS232 
>> board (in fact I bought a second Integral fairly recently mainly to get 
>> that board). I also have an internal 300/1200 baud modem and a ROM/EPROM 
>> drawer for mine, but not enough slots :-)
>>
> I have both a 512k expansion and the RS-232 card installed in mine, I'll 
> have to look  up your article and see about upgrading the 512k card to 
> 1M...
>>
>>> make use of it...) but not much documentation.  Docs for the HP BASIC 
>>> for this machine would be nice, too.
>>>
>>> I've only played with it for a little while, but it seems like a really 
>>> neat machine. (Though it seems like this thing is just begging for some 
>>> sort of mass-storage other than the internal floppy and RAM.  Anyone 
>>> have an HPIB hard disk for sale? :)
>>>
>>
>> The maion prolems with this machine are, IMHO :
>> Not enough memory, you really need a 512K or 1M card
>> No serial port -- the RS232 board is something you want to find.
>> And therefore not enough slots, if you add memory and RS232, you have no 
>> slots left. There was an expansion box, but I've not found one yet.
>> No hard disk. Yes, you can add an external HPIB hard disk, but that 
>> rather defeats the point on a portable machine.
>>
> Agreed.  It also would have been nice if they'd put a bit more in the 
> system ROM.  As it is, there's absolutely no software or tools aside from 
> the very basic OS on startup.  The machine doesn't even know how to format 
> disks without the Utilities floppy!  A simple text editor and other basic 
> desktop apps (clock, calendar, calculator, terminal, etc...), or maybe a 
> just a small unix shell and utilities built-in would have made this 
> machine a lot more useful.  As it is, I'm swapping floppies all the time 
> to do anything.  Tried compiling a C program -- 
> two disk swaps and about 2 minutes later, and I had "Hello, World!" 
> running :).
>> -tony
>>
>>
>>
>
>