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 <[email protected]> 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 > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
