Keyboards & Conductive Rubber

From: Ethan Dicks <>
Date: Tue Sep 7 17:00:51 2004

On Tue, Sep 07, 2004 at 07:04:57AM -0400, Paul A. Pennington wrote:
> Dave;
> I've tried several things on my Sony TV remote control. The various
> paints and other expensive fixes don't last very long. What finally worked
> for me was some heavy aluminum foil tape used for sealing air ducts.
> Cut some tiny squares of the tape just big enough to cover the two
> contact pads on the circuit board and stick it to the surface of the key
> plunger. Evidently the resistance value is not critical, as long as it's
> below some minimum value -- zero ohms is OK. My repair has been working
> for a couple of years now.

Isn't the reason the original equipment came with rubber pads was to minimize
wear of the PCB contacts? When I was a kid, the only computer at home was a
Commodore PET (2001-N - 32K, 40 col., AKA 3032 in Europe) One of the most
loaded programs, by me and my 3 brothers, was the machine-language version
of Space Invaders. You move with the 4 and 6 number-pad keys, and fire with
A. Between all of us, we wore the gold off those three pads. I can only
imagine that copper or alumimum foil tape would do it much faster.

My solution to the damaged PCB was to A) buy a new keyboard back (at $35 from
the local dealer), B) salvage the old harness, C) build a frame from an old
Radio-Shack 150-in-1 electronic kit, D) install 3 genuine arcade buttons (about
$8 each at the time), and E) mount them in front of the computer. I wish I
had a picture of it, but it was perfect - with the second keyboard harness, I
was able to mount the buttons in parallel with the keyboard, letting us play
Space Invaders without damaging the new keyboard.


Ethan Dicks, A-130-S      Current South Pole Weather at 07-Sep-2004 21:50 Z
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Received on Tue Sep 07 2004 - 17:00:51 BST

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