[time-nuts] Any spare switches for Racal-Dana 1992?

[Stan Searing]

The switches I've replaced in my Dana 1990 failed with the rubber cracking
around the
part that provides the "spring".  I think the first one that failed was
shorted (which caused
me to think that the processor was confused, as no other buttons worked
until I found
the one stuck down).  So at least in my case, the conductive rubber did not
need restoring,
and the rubber keypad repair kits would not help.
I have use the P12227SCT-ND switches from DigiKey and cut flutes into the
round
shaft with a Dremel.  The switch buttons rotate freely with these switches,
so
you have to line them up carefully before putting the panel back on the PCB.

Stan


On Wed, Feb 22, 2012 at 5:13 AM, Sam <lists at digitalelectric.com.au> wrote:

> There is a thread at
> http://www.eevblog.com/forum/product-reviews-photos-and-discussion/racal-dana-1992-teardown/that has some detailed pictures of the innards of the switches, by the look
> of them a rubber keypad repair kit should work.
>
> http://parts.digikey.com/1/parts-kws/conductive-rubber-keypads-repair-kits
>
> Sam
>
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