[Coco] Melted Keyboard Repair

pfitchjr at bellsouth.net pfitchjr at bellsouth.net
Tue Feb 4 08:40:44 EST 2020

You might want to take a close look at the keys that didn't come apart. I think the little bb is part of each key.

-----Original Message-----
From: Coco <coco-bounces at maltedmedia.com> On Behalf Of Arthur Flexser
Sent: Monday, February 3, 2020 11:32 PM
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Subject: Re: [Coco] Melted Keyboard Repair

So, now that you've cut the plastic welds off, how are you going to hold the keyboard together after you reassemble it?

I'm betting the little metal balls serve no purpose at all, but somehow crept in during manufacturing.  Maybe they were dandruff in the hair of a robot that put the thing together.


On Mon, Feb 3, 2020 at 10:16 PM Kevin Becker <kevin at kevinbecker.org> wrote:

> So I took a razor and clipped all the plastic welds holding the 
> keyboard in place.  Quite a few had broken off already, which I assume 
> was the source of the issue.  The good news is that my mylar membrane 
> is in great shape.  The faulty keys were due to the small springs that 
> press against the mylar coming loose on the problematic keys.  
> Probably because the broken plastic welds allowed the keyboard to flex 
> enough for them to get loose.  The rattling sound has me really 
> puzzled though.  I'm sure the springs were part of it, but the 
> majority seems to have come from a bunch of small metal balls loose 
> inside the keyboard.  I think there were 9 of them.  They are much 
> smaller than a BB, more like the ball in a ballpoint pen, but a bit 
> bigger than those.  Does anyone know what purpose they could possibly serve?

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