HP 98xx manuals

[Joe R.]

At 12:21 AM 7/26/05 +0100, you wrote:
>> The 2xx series was moderately well documented (schems for the DIO 
>> interfaces,
>> even) But by the mid-80's, HP had gone to board-swapper level docs in 
>> their
>> CE manuals.
>
>The desktop calculator service manuals (and some of these are really 
>computers) never included full schematics. If you were lucky you got the 
>PSU schematic. If you were very lucky you got the schematic of some other 
>bit as well (the 9100 manual included the CRT driver board schematics, 
>the 9830 manual included the cassette controller schematics). AFAIK you 
>never got the CPU or memory schematics
>
>The handheld calculator service manuals did include schematics (at least 
>up to the HP41, I believe the Voyager (11/12/15/16) manual didn't). But 
>those manuals are very hard to find.
>
>The PC-like machines -- the HP150, HP110, etc did include schematics in 
>the service or technical manuals. Strangely (with relation to the earlier 
>manuals), you didn't get PSU schematics, you did get the logic ones.
>
>The HP9000 manuals never included CPU/memory board schematics AFAIK..

   I think you'll be surprised once Al gets the stuff scanned!

    Joe


>
>[Insert the standard 'plug' for the HPCC schematics CD] 
>
>-tony
>