mike wrote:
Pszemol wrote:

"mike" wrote in message
...

You can buy silver and nickel loaded "paint". You can paint them
across the break if you have access. Often the conductor is covered
and you can't get at it. The paint doesn't flex well...tends to flake
off.



The connector is fed with two pieces of foil making the whole tape.
The crack is exposing metal conductors so I would be probably
able to drip some glue/paint into the crack if the paint is dense
enough to not ooze to the neighboring connection.

Is there particular name for this paint you refer to?
Where can I get it? Does RadioShack stock it?


Can you get at real circuit board on each end. I've had some success
removing the flex cable completely and soldering a zillion small wires
from end to end. But it's a one-way trip.



No, there is board on one side only.
The keyboard is a two foils, similar to well-known ZX Spectrum
keyboards - when you press the button the foil contact the crossing
conductors - the foil forms the tape with 4 conductors on each layer.
there is only 16 buttons on the device so the only hope is to fix
connection.



The silver stuff can be had at Fry's.
GC Silver print II. 22-0023-0000
Be prepared to pay $15 for 1/2 oz of it.
Cost me $15 to fix a keyboard on a $1 laptop.

If you can't immobilize the break, it will crack right off.
mike

It may be that you are describing the same paint often used for
repairing the rear window defogger traces on automobiles? If not, I
have read of people repairing such traces on circuits by using that kind
of paint. It is available in auto parts stores.