On Wed, 28 Nov 2007 08:50:52 +0100, "PG1D/PA-11Ø12"
put finger to keyboard and composed:

Hi, does anyone know a schematic or a replacement pcb source of cheap 150mm
Chinese digital calipers? 0-button and pc-readout-port are not working. It
still measures; display, Inch/mm and On/Off are ok too.
Thanks,
Dirk

I recently obtained a circuit, exploded diagram, and a detailed
how-it-works explanation for a $20 Chinese made gadget merely by
downloading its patent info from the US patent office.

- Franc Zabkar
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