At 8:02 AM -0500 11/1/99, Pedro Nogueras wrote:
>Reading about this problem brings up the opportunity to comment on mine.
>It seems that the track pad bar on my 2400 is not working as it should.
>Sometimes I have to press the button either more than once or just very
>hard in order for it to click-choose; other times when I am selecting a
>group of icons or dragging an icon(s), I loose them as though I had
>released the pad button eventhough I had not.
>
>Has anyone any explanations for this problem and any suggestions on how
>to fix it? It is not severe now but I fear it will get worse.
Earlier 2400s have a track pad button which is just about guaranteed
to kill itself with use. The button uses one of those switches where
there is a metal dome that gets deformed when the button pushes down
on it. The column of plastic which comes down from the trackpad
button to push on the switch is a little too pointy on the end, which
over time ends up destroying the switch.
To fix this, you'll need to take off the palm rest assembly and
disassemble the trackpad. Take a flat file (it could even be a nail
file) and very carefully use one or two passes to partially flatten
the little spherical nub on the end of the trackpad button's plastic
post. You should take off very little material.
This won't make your button better, but it might prevent further
degradation. You could try putting in a shim between the switch and
the button to enhance clicking. If that doesn't work, Sun
Remarketing (www.sunrem.com) sells the entire palm rest assembly,
including a new trackpad button assembly, for about $60.
http://www2.sunrem.com/sun02.w?pt=076-0697&catcode=15420
Tim Seufert
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