HP95LX, 100LX and 200LX Technical Section

HP Board Information

Schematics, Component layouts and port/connector pin-outs

Title Description Date
Port Pinouts A technical description of the ports found on the HP palmtops as well as connecting cables -

 

Problems

Title Description Date
The Hinge Crack Problem An issue that faces many clamshell designs, not just the HPs -
A Palmtop Adventure A disassembly of the 200LX screen and other components
by David Sargeant
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Upgrades



Title Description Date
Arne Christensen provides this tutorial for a do-it-yourself RAM upgrade for a 512K 95LX.
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There is no backlight upgrade for the 95LX. It may be possible to adapt the backlight upgrade for the 100LX/200LX and 1000CX to work with the 95LX, but nobody has done this yet.
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Adding a speaker/earphone jack to the palmtop
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This sheet provides all the information you need to build a car charger circuit for the 200LX using a L7812CV voltage regulator, by Daniel Hertrich
2011