Nov 142020
http://www.finetune.co.jp/~lyuka/interests/calc/pioneer/
Takayuki HOSODA
Nov. 17. 2009
Japanese edition is here.
PCB of the HP pioneer series calculators
Membrane switches
Key pad and back plate (with LCD)
Partial schematic of the HP 17BII/27S/42S
SEE ALSO
HP 42S memory upgrade and overclock
Pioneer “Observational Internals”, Paul J. Brogger
Copyright (c) HOSODA Takayuki. All rights reserved.
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