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HP-97 Service manual - Jonas Sandstedt - 01-20-2022 02:30 PM
Hello,
Perhaps this is well-known, but I was astonished to see that there is a newer version of the HP-97 service manual availabe at
https://literature.hpcalc.org/
This one is dated June 1982 compared to the previous one that is dated August 1976; there is another font and the pictures are sharper. The scan is very good.
best regards
Jonas
RE: HP-97 Service manual - Karl-Ludwig Butte - 01-21-2022 08:13 AM
Hello Jonas,
thanks a lot for this link - at least for me it was new information.
Best regards
Karl
RE: HP-97 Service manual - Jonas Sandstedt - 01-21-2022 08:20 AM
Hello,
Also note the "Service notes" at the end, here some experiences are collected, and also disussing a ROM update policy for older ROM
that cause some errors.best regards
Jonas
RE: HP-97 Service manual - Dreato - 01-23-2022 02:50 AM
Thanks for pointing to this new service manual. It shows both the old and new Logic circuit board layouts.