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
--
Please remove one 'i' from my address when replying by email.

"Franc Zabkar" schreef in bericht
...
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
--
Please remove one 'i' from my address when replying by email.

Thanks Franc! I visited Patentsonline and sofar only found the original
European patent, but without diagrams. Will hav e another attempt.
Dirk

On Fri, 30 Nov 2007 12:07:06 +0100, "PG1D/PA-11Ø12"
put finger to keyboard and composed:

I visited Patentsonline and sofar only found the original
European patent, but without diagrams.

I use this database:
http://www.freepatentsonline.com/search.html

If you register (free), then you will have access to the PDF versions.

There is also the United States Patent and Trademark Office web site:
http://www.uspto.gov/patft/index.html

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.