From: Bill Morrow (penzance_at_icanect.net)
Date: Fri Jun 19 1998 - 19:29:12 EDT
I am surprised that this stuff can reach the contact area..
the keyboard uses a membrane sort of thing..
(though i must admit that when one of my birds (Buddy, an Umbrella
Cockatoo) decided the 755CE i was working with at the time looked much
like the bottom of his cage, the 'stuff' sure got through the plastic
and fried that keyboard!! <G>)
billy_at_MIX.COM wrote:
> Well, the mouse buttons on the used keyboard IBM chose to replace
> my last broken one with finally crapped out (somehow I just knew
> they wouldn't last all that long) so I decided to try something we
> use at work on connectors and switches that decide to quit doing
> their jobs. It's called Cramoiln R-5, made by Caig Laboraties
> and was developed for NASA where reliability is very important.
>
> This is available in most electronics parts shops - it costs a
> lot (about US$10) but it really works extremely well - I've gone
> from having to use rather heavy pressure to where just a light
> tap now works again. I injected it through the tops - with the
> buttons slid out into their locked positions there are two small
> cracks that provide access down into where the switches themselves
> are. Care should be used here - it only takes a one molecule
> thick coating of Cramolin for it to do its thing, a little bit
> goes a very long way. Using too much means you'll be spending
> some time cleaning up the excess (it's pretty slippery stuff).
> I used some Kleenex over the tube going into the buttons when
> spraying it in to keep it off the rest of the keycaps - not all
> of it will just disappear down in the mouse buttons. Very light
> pressure on the spray can nozzle is also a good idea to keep the
> 'bounce' to a minimum.
>
> Based on my experience at work this should last a year or two
> (setting aside the crummy nature of the Lexmark keyboard in the
> first place), after which it'll need another application to get
> it going again.
>
> Billy Y..
-- Happy Trails... :-) ** Bill Morrow ** WEB PAGE: http://thinkpads.com DISCUSSION: http://thinkpads.com:8080/webboard/$webb.exe bill_at_nospam@thinkpads.com, morrow1_at_nospam@compuserve.com 770ED-5AU, 770-1AU(2), 760ED(1), 701C(2), 750C, IBM WorkPad Win95B & Win98-RC2
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