Re: Lisa keybord Caps lock mechanism take apart.

<sigh...>

I made the mistake of disassembling the caps lock key on my Corvus Concept keyboard (Keytronics of same vintage as Lisa). I had the little pin, but could not get it together again and eventually lost it in my fumbling. A pox on Keytronics for not spending the extra $0.02 it would have taken to make caps-lock toggle in software. If anyone comes up with a mod to add this after the fact, I would love to know about it.

On Monday, September 10, 2018 at 8:47:34 PM UTC-4, Ray Arachelian wrote:
>
> A couple of months ago, George Foumakis contacted me about fixing a Lisa
> capslock key.
>
> He posted the photo here: https://postimg.cc/image/lwpyl31uj/
>
>
> In the photo at the url above, from left to right in the image in the url:
>
> 0.a very tiny, easy to lose gold pin, one side thicker, one side
> thinner. The thick side goes inside a small hole in the white plastic
> plunger, the thinner side sticks out and fits into 1:
>
> 1. a small white grooved plastic - one side (shown above) shows a
> grooved line in the center, the back side shows a groove that looks like
> an OR gate. The "output" pin of the OR-gate goes to the bottom where the
> gold pin is.
>
> 2. a small black bracket - the vertical slot fits the grooved line of 1,
> and this fits into against the bottom side of the keycaps (towards the
> space bar)
>
> 3. A closing cap that fits over the capslock key - if your capslock key
> is functioning DO NOT OPEN this. It's very difficult to put it back
> together again, and the pin (0) is very very very tiny, much smaller
> than it looks in the photo and very easy to lose.
> If you must open your capslock key do so carefully in a well lit,
> contained environment, and it's very easy for the parts to go flying off
> under the table.
>
> It seems that I lost the pin (0) from one of my keyboards by being too
> hasty in opening 3 - you've been warned.
>
>
> I've also attached 3 photos to this message showing how this all fits
> together.
>
> The photo named 20180910_172818_resized in the attachments to this email
> show the gold pin, and how 1 and 2 fit together. However the white
> grooved plastic bit (1) should be pushed towards the right when putting
> the capslock key back together.
> The tip of 1 that points towards the gold pin goes to the bottom of the
> outside of the capslock square. The gold pin 0 fits into this groove and
> the groove implements the locking mechanism.
>
> The 20180910_174807_resized photo shows the capslock key - this is the
> one that's in the middle on the rightmost row - the space bar would be
> to the bottom of this - you can identify the capslock key in this
> picture because it has a vertical opening to the right.
> If you look very closely at the bottom of this opening you can see the
> gold pin stick out thin end to the outside.
>
> The opening inside the capslock plunger may have a hidden tiny spring
> there, as pushing the pin in causes it to jump out - yet another thing
> that makes it very difficult to put back in, and easily lose the pin as
> it will go flying. I've not taken the plunger apart so I don't know if
> that's the case or not.
>
>
> 20180910_172604_resized shows the assembled caps lock key with the
> closing cap (3) in place.
>
> Hope this is useful to someone, however, again, heed the warning, should
> you open the closing cap (3), you can expect that the parts 0-2 will go
> flying and you may lose the tiny pin and break your capslock, so unless
> you have a very good reason, don't open it.
>
>
> I'll add this to LisaFAQ eventually.
>
>

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