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Hi everybody,

I recently got hold of a HP9100B calculator in an excellent condition.

As I want to sell it, and I'm not particalarly familiar with this machine, I would like to know how I can check all (or a great many) of it's functions. It appears to be fully functional, but I would like to test this!

Thank you very much in advance!
Roy Engelen
R.A.B.Engelen@zonnet.nl

The HP service manual includes a test program which is supposed to exercise all the programmable functions. Part of the manual is on the MOHPC CD-ROMs. The magnetic cards are hard to find and there is a very good chance that the card reader's rubber drive wheel has turned gummy.