I had to search to find:
"There is exactly one key on my m100's keyboard that rufuses to work,
the K key."
What was anyone supposed to do with that?
What I said below and the video wouldn't help with a 100. It only
applies to a 102.
100 has a totally different kind of keyswitch, and no similar easy
possible fix to try, other than just wash the switch with distilled
water (to clean out possible sugars from drinks), then alcohol (to dry
the water), then deoxit (to refresh the actual copper contacts inside),
and actuate the switch a bunch of times (after the deoxit soaks a while,
you also need a little mechanical action to actually scrub away the
oxidized surface).
If simply washing and deoxit doesn't make it work, then you have to look
for corroded traces, loose solder joints, desolder and disassemble the
keyswitch itself, maybe replace from ebay (the switches are available
sometimes).
--
bkw
On 3/20/24 00:36, Peter Vollan wrote:
It would have been nice if you guys had helped me out with this when I
recently posted that my "K" key had inexplicably quit. I swapped the
keycap out with the ESC key because that is rarely used; I didn't think
of the extra shift key. Long story short, I overestimated my abilities
and thought I had wrecked my unit permanently, but by hook or by crook,
and solder bridges and resistor legs, my keyboard was fixed. Except for
the escape key. Actually the cassette relay and the modem don't work,
but I think that is from changing those resistors and replacing the
backup battery. Don't see how it could be the keyboard.
On Mon, 18 Mar 2024 at 08:58, Brian White <b.kenyo...@gmail.com
<mailto:b.kenyo...@gmail.com>> wrote:
102 has carbon impregnated silicone rubber domes like calculator or
remote buttons.
With care it's possible to lift the top of the key switch body off
and lift out the rubber dome, and see if the contacts or button are
dirty. Maybe use some deoxit with a q-tip to clean the contacts,
maybe clean the carbon pad.
I had a stuck T key where everything looked fine but the carbon pad
maybe just looked worn. I swapped the rubber dome with the
right-shift key (a key that I don't use as much, and has a duplicate
on the left anyway, and was much less worn because all the previous
owners probably used it less than T also) and afterwards not only
did the T work, the right shift still worked!
To get the keyswitch apart, I don't know how to verbally describe
everything clearly. I made a video
https://youtu.be/n_oyDYRDYzs <https://youtu.be/n_oyDYRDYzs>
bkw
On Sun, Mar 17, 2024, 10:47 PM Ronald Hudson <hudson...@live.com
<mailto:hudson...@live.com>> wrote:
Hi Everyone--
My 102 has a failed "," key - all the other keys seem to work so
I am
guessing it is a bad key or broken trace.
What say ye?
Thanks!
Ron.
--
bkw
