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

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.

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

Quote:

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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

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