Bernie,
> I have a friends MP2000 apart looking for the cause of a non-responsive
> touch screen. I finally found the problem. The foil ribbon cable with
> the 4 contacts has a break half way through the ribbon cutting 2 of the
> foil traces.
Probably the only approach is to solder across the broken traces with a
fine, flexible stranded wire once you have carefully scraped off the clear
outer coating with a scalpel to reveal the traces. Low temperature solder
can be helpful here as it has better wetting of the surfaces and needs
slightly less heat, protecting the cable. A tiny dab of solder flux can also
help to make good joint in these difficult conditions.
Once the repair is complete you will need to insulate it with some tape.
A possible alternative is to take new, insulated wires to each end of the
connectors for the two broken traces and solder them to the board itself -
if you can gain access to those points - I haven't looked on an MP to see if
this is actually possible.
A replacement cable from a non-functioning MP might be the easier route if
someone on the list has one available.
Joel.
-- Read the List FAQ/Etiquette: http://www.newtontalk.net/faq.html Read the Newton FAQ: http://www.chuma.org/newton/faq/ This is the NewtonTalk mailing list - http://www.newtontalk.net/
This archive was generated by hypermail 2.1.2 : Thu Sep 05 2002 - 10:02:30 EDT