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

"PG1D/PA-11Ø12" wrote in message
news:E593j.12422$Hv4.8489@amstwist00...
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



LOL when was the last time you saw a schematic for a cheap Chinese anything?

Check the obvious like dirty connectors or cracked joints, otherwise buy a
new one.

"James Sweet" schreef in bericht
news:MF93j.37118$ng.15021@trnddc08...

"PG1D/PA-11Ø12" wrote in message
news:E593j.12422$Hv4.8489@amstwist00...
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



LOL when was the last time you saw a schematic for a cheap Chinese
anything?

Check the obvious like dirty connectors or cracked joints, otherwise buy a
new one.
Hé James, this is sci.electronics.REPAIR, not sci.electronics.buynew ;-}

James Sweet wrote:
snip

LOL when was the last time you saw a schematic for a cheap Chinese anything?


If the device needs FCC type acceptance and the filer didn't request confidentiality,
schematics are often available on 'gullfoss' (unfortunately digital calipers don't
radiate much RF ;-) )

Michael

Hé James, this is sci.electronics.REPAIR, not sci.electronics.buynew ;-}




That's why I said check the obvious stuff, if the problem is not obvious,
then you don't stand a chance. These things are truly not meant to be
repaired, doesn't mean you won't succeed, but you won't find schematics or
replacement parts.

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.