Looking for HP-87 service manual



#4

Hello, I just acquired a HP-87 that appeared to have received coffee or some other liquid that corroded several tracks of the PCB lying below the keyboard (the CPU board apparently). After cleaning the board, I discovered that some tracks were cut so I managed to repair them with thin copper wires, and now the main fuse burns after I power it on....
Removing the CPU board, the fuse stays alive and I checked the power supply that appears to work OK (at least it generates several voltages, 7V, 22V, etc;) so it looks like their is a short circuit somewhere in the CPU board that I could do spot visually.

In order to move forward in the problem determination, it would help to get a service manual for this beast but could not find one anywhere on the web.

Has some of you guys got this document or a PDF ? Alternatively, - in case I cannot sort this out myself - is there anyone with H87 spare parts to trade ?

Thanks in advance for your reply
kind regards, Philippe


#5

Here's a site with tons of material:

http://www.hpmuseum.net/collection_document.php

And there seems to be what you're looking for, just search the site for "87ServiceManual"

Franz

Edited: 7 Nov 2012, 3:57 p.m.


#6

Thanks a lot Franz ! that's great, I didn't know that site, looks like a gold mine...
cheers
Philippe

Quote:
Here's a site with tons of material:

http://www.hpmuseum.net/collection_document.php

And there seems to be what you're looking for, just search the site for "87ServiceManual"

Franz




Possibly Related Threads...
Thread Author Replies Views Last Post
  HP-97 Service Manual, newer model davorin 6 306 09-16-2013, 10:45 AM
Last Post: davorin
  Need service information for HP 82161A Cassette Drive Peter N1 2 180 07-14-2013, 04:11 AM
Last Post: Tony Duell
  9815 data cartridge drive (also 9825 / 9845 / 85 / 87, and who knows what else) John Ioannidis 2 190 06-12-2013, 07:20 PM
Last Post: Craig Ruff
  9815 Service Module John Ioannidis 0 124 06-10-2013, 02:56 PM
Last Post: John Ioannidis
  HP 86/87 - CP/M Ph.Théry 3 172 05-27-2013, 04:02 AM
Last Post: Olivier De Smet
  Service manual for HP9872C plotter? John Ioannidis 2 197 05-21-2013, 02:06 PM
Last Post: Juergen Keller
  HP85 Programmable ROM cardtridge 82929A-service ROM not working- inaki 2 227 04-25-2013, 08:08 AM
Last Post: inaki
  WP 34s flashing service Michael Fehlhammer 4 250 12-12-2012, 08:23 AM
Last Post: Michael Fehlhammer
  HP-87 power supply repair philippe_elie 0 132 11-18-2012, 11:12 AM
Last Post: philippe_elie
  HP thinkjet printer service manual Alan Sciacca 0 109 08-23-2012, 10:38 AM
Last Post: Alan Sciacca

Forum Jump: