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echo: tech
to: Jean Parrot
from: James Bradley
date: 2006-04-13 07:24:04
subject: Carbon-Latex Contacts

JEAN PARROT wrote JAMES BRADLEY on 04-11-06 09:06

 JB> I have to rejuvenate some of those carbon impregnated latex-rubber
 JB> type push buttons.

 JP>         I have had some very good results with
 JP> the Canadian Tire paint
 JP>    that is used on the rear window defroster
 JP> traces. It is conductive
 JP>    and should do you good too. My use of it was
 JP> in repairing a trace
 JP>    on a mylar film for a keyboard, in a Thinkpad
 JP> of yore. I fancy that
 JP>    you should have the same result in your
 JP> zapper.

 JP>         Your suggestion of just washing it in
 JP> H2O first is also
 JP>    valuable. Try it first, it is free.

Ya, the free stuff aint that great. Distilled, and unmineralized water is
preferable. Here we have *very* hard water, and the salts can play havoc with
all sorts of stuff found in electronics. The paint you mention was useful on a
different type of device, much like a laptop-contact trace, so I do know what
you mean.

The print on the circuit board seems fine, unless the cocktail did more damage
than is visible. (see previous RE: other devices with same disease) Because
I've had trouble with the same ilk, I'm suspecting more a chemical that
influences the pad to contact. I think I'll try a few contact tests, to see if
I can paper clip the connection.

 JP>    Getting these PW locked HDs fixed
 JP>             should be done soon. Thanks Dennis !

"PW" = Pass Word?

fdisk can do wonders!  I shouldn't speak though, as I was having trouble
with a PW here just earlier.


... James
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