Re: Problem with IIe keyboard

[Bill Shuff <bill2060@cris.com>]

Dan Masterson wrote:
> 
> Lorin Evans (lorin.evans@tcs.wap.org) wrote:
> : Don Leed wrote that keys on his IIe keyboard are sticking.  He is looking
> : for some unstucking advice.
> :
> :   Here is an easy fix.  Turn off your IIe.  _Carefully_ remove the keycap from
> : the offending key(s) by lifting straight up on the cap.  Otherwise, you could
> : snap the plunger off from the switch.
> :
> :    Now take a can of WD-40 or equivalent. Spray some into the opening between
> : the plunger and body of the keyswitch.  Work the plunger up-and-down several
> : times.  That should do it.  Sometimes you have to repeat for more reliable
> : results.
> :
> 
> I'd agree with the above, but isn't WD-40 OIL based?  Wouldn't this just
> attract dirt/dust.  Wouldn't using a silicon based contact cleaner be better?
> 
> Just my $2 worth (inflation ya know).
> 
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I would agree that WD-40 is not the best choice if one is going to try
to spray something into a keyswitch.  I find that WD-40 gets gummy in
time.  I would use TV tuner cleaner or a contact cleaner.  The good ones
used to be made with freon, but I do not know what substitutes are used
now.  It will be very difficult to get sufficient cleaner into a
keyswitch so that the contacts are wetted and cleaned.  The only
keyswitches that I find are reliably cleaned by a spray are those on 
IIgs keyboard switches.  The stems of the keyswitch have a hole in the
top, making it easy to get the spray into the keyswitch.

Bill Shuff