Lisa keybord Caps lock mechanism take apart.

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From: Ray Arachelian <ray_at_email.domain.hidden>
Date: Mon, 10 Sep 2018 20:47:17 -0400

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:

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.

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)

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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(image/jpeg attachment: 20180910_174807_resized.jpg)




(image/jpeg attachment: 20180910_172818_resized.jpg)




(image/jpeg attachment: 20180910_172604_resized.jpg)

Received on 2018-09-10 20:49:31