Re: HP 1000 A class series boards

[dwight via cctalk]

The resistor goes on the battery plug or the unit will not power up. The 
computer was suppose to have a battery bank to keep the DRAM from losing data 
when turned off, like the original core used on earlier machines. The resistor 
detected the battery pack that one rarely use.
Dwight

________________________________
From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Guy Dunphy via cctalk 
<cctalk@classiccmp.org>
Sent: Sunday, January 27, 2019 3:06 PM
To: Jesse Dougherty; General Discussion: On-Topic Posts
Subject: Re: HP 1000 A class series boards

Hello Jesse,

I have this: 
http://everist.org/NobLog/20131112_HP_1000_minicomputer_teardown.htm

It's a stalled project, due to unfortunate circumstance. I was at the point of 
preparing
to reassemble the machine (after cleaning) and start testing. Wanted to first 
test the power
supply under dummy load, to check for bad caps etc. Could not find a schematic 
for this model
of power supply online. Had contacted Jon Johnston, who ran the Australian HP 
Museum. He said
he might have it, but was overseas (mountain climbing) at the time. He came 
back, but went off
climbing again in the Himalayas before I contacted him again to remind him. 
That time, he died
on the mountain.
This was doubly sad for me, since of my two best friends, now both dead, one 
had died climbing
in the Himalayas (David Hume, Mt Macalu 1996), and the other had nearly killed 
himself and me
by severe negligence while we were doing a short 30m climb here in Australia. 
So my HP 1000
restoration became something of an avoidance issue.

Since I joined cctalk and vintHP, I've been meaning to restart this project 
with assistance here.
But too busy so far with other things.

At the moment I'm not sure if my machine is an 'A-series' or not. How do I tell?
It's a 2113E, apparently quite a late model. I've had it and related hardware 
(minus disk drives)
since the early 2000's. It was a junkyard find. All in perfect condition except 
one of the two
tape drives has a little 'forklift damage' to the front. I rescued it all from 
being landfilled.

Guy



At 01:38 PM 27/01/2019 -0500, you wrote:
>If anyone can use any of the 1000 A Series boards, I have the
>following.. feel free to contract need anything. Sorry for the two
>inventory postings, I spent all weekend inventorying these boards.
>
>02430-60009Â Â Â  Voltage jumper board
>12001-60003Â Â Â  A400 CPU board
>12004-60001Â Â Â  Memory Controller
>12005-60002Â Â Â  Cable Assembly
>12005-60010Â Â Â  Serial Interface board
>12005-60012Â Â Â  Serial Interface board
>12008-60001Â Â Â  Prom Storage Module
>12009-60001Â Â Â  HP-IB Interface
>12009-60010Â Â Â  HP-IB Interface
>12009-60020Â Â Â  HP-IB Controller Card
>12010-60003Â Â Â  Bread Board Interface
>12012-60001Â Â Â  Jumper Board
>12025-60001Â Â Â  I/O Card
>12038-60002Â Â Â  Frontplane memory connector
>12038-60005Â Â Â  Frontplane Memory Connector
>12040A/BÂ Â Â Â Â Â Â Â Â  8- Channel MUX
>12060-60002Â Â Â  Analog Input card
>12076-60001Â Â Â  LAN Interface
>12100-60001Â Â Â  A400 CPU board
>12101-60001Â Â Â  A600 CPU board
>12102-60002Â Â Â  512kb Memory Controller
>12102-60007Â Â Â  512kb Memory Controller
>12103-60003Â Â Â  512kb Memory
>12103-60004Â Â Â  1MB Memory
>12103-60016Â Â Â  512kn Memory
>12105-60001Â Â Â  A600 CPU board
>12110-60002Â Â Â  1MB Memory
>12150-60002Â Â Â  Interface
>12152-60001Â Â Â  A700 Upper processor
>12152-60002Â Â Â  A700 Lower processor
>12152-60003Â Â Â  Memory Controller
>12154-60005Â Â Â  Battery Back-up
>12156-60001Â Â Â  Floating Point Processor
>12156-60002Â Â Â  3-slot frontplane connector
>12163-66001Â Â Â  Interface
>12202-60002Â Â Â  DataPath
>12202-60104Â Â Â  DataPath
>12202-69006Â Â Â  DataPath
>12203-60004Â Â Â  Cache Controller
>12203-60017Â Â Â  Cache Controller
>12203-69018Â Â Â  Cache Controller
>12204-60002Â Â Â  Memory Controller
>12204-60004Â Â Â  Memory Controller
>12204-60005Â Â Â  Memory Controller
>12220-60001Â Â Â  768kb Memory
>12222-60001Â Â Â  Frontplane Memory Connector
>12222-60002Â Â Â  Frontplane memory connector
>12222-60004Â Â Â  Frontplane Memory Connector
>12230-60001Â Â Â  Frontplane Memory Connector
>12230-60003Â Â Â  Frontplane Memory Connector
>12230-60004Â Â Â  Frontplane Memory Connector
>37203-60003Â Â Â  Extender Card
>5061-3434Â Â Â  Direct connect I/O Board
>5061-4938Â Â Â  Direct connect I/O Board
>5061-4939 Â Â Â  Direct connect I/O Board
>5061-4940Â Â Â  Interface
>5090-1631 – 5061-3417    Interface
>93691-60003Â Â Â  Asynchronous Multiplexer
>93699-60003Â Â Â  Watchdog Timer
>
>