This CD-ROM contains schematic diagrams for many HP handheld and desktop 
calculator products. These diagras were produced by dismantling and 
reverse-engineering the machines, and are not endorsed or supported by 
Hewlett-Packard in any way.

These diagrams are intended to aid electronically-knowledgable owners in 
repairing their machines. They are not intended as an introduction to 
calculator repair, and beginners will almost certainly need to refer to 
standard books on electronics before they can understand them. Also, many 
of the devices described here use lethal voltages (including the AC 
mains), and it is essential to know what you are doing and to take great 
care before attempting to repair such devices. If in doubt, ask before 
working on such machines.

These diagrams are offered in good faith, however it would be extremely 
suprising if there were no errors. Neither the author nor HPCC will be 
held liable for any loss or damage that results from using the 
information on this disk.

DrARD 2024
