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geekhack Community => Keyboards => Topic started by: metamorphosis on Sun, 20 August 2017, 06:20:20

Title: Model M, 8 keys only respond to hard taps
Post by: metamorphosis on Sun, 20 August 2017, 06:20:20
The keys are in different places across the keyboard, and haven't changed before/after with a bolt mod.
The springs and levers all got shifted around so there's no chance it's faulty springs/levers.
Lastly, there's one key which won't respond to even hard taps.

I thought about putting tiny amounts of blu-tack underneath the membrane at the faulty keys, but thought I would get opinions here first.
BTW thanks for all the advice I've absorbed through the various posts here on bolt-modding - it helped.
M
Title: Re: Model M, 8 keys only respond to hard taps
Post by: E TwentyNine on Sun, 20 August 2017, 06:24:17
What specific keys work?
Title: Re: Model M, 8 keys only respond to hard taps
Post by: metamorphosis on Sun, 20 August 2017, 18:12:26
What specific keys work?

All keys work except f5, f12, 0, y, m, ?, right. N doesn't respond but I think I know what causes that.
Title: Re: Model M, 8 keys only respond to hard taps
Post by: E TwentyNine on Sun, 20 August 2017, 21:01:15
Normally I guess you have a trace out or corroded and to reseat the connectors. Not seeing any common traces with those if it's an old style large controller.  If it's the later style with the small controller over the numpad, I don't know if the matrix is different on those and you have a bad trace or connection.
Title: Re: Model M, 8 keys only respond to hard taps
Post by: metamorphosis on Mon, 21 August 2017, 00:10:35
Normally I guess you have a trace out or corroded and to reseat the connectors. Not seeing any common traces with those if it's an old style large controller.  If it's the later style with the small controller over the numpad, I don't know if the matrix is different on those and you have a bad trace or connection.

If it were a bad or corroded trace, wouldn't tapping the key harder have no effect?