Unhappy HP-85

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Sun Jul 11 21:16:31 2004

>
> Hello all! :)
>
> A while back, I purchased a smoking HP85.
>
> I'm finally getting into the fixing it stage... The part in question
> looks to be a transformer labelled 9100-0457 / 906933. It has a
> similar, happier cousin labelled 9100-0455 / 906933. The caps are

Where is this part in the machine? On the PSU/printer board, the video
board, or what?

You can get the HP85 'Assembly Level Service Manual' on one of the HP
Museum CD-ROMs (look at http://www.hpmuseum.org/). Despite the name, it
does include schematics, but it won't contain transformer winding
details. You may have to work out what the transformer was from the circuit.

-tony
Received on Sun Jul 11 2004 - 21:16:31 BST

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