[Coco] Melted Keyboard Repair

[Mathew Boytim]

 Could they be 'solder balls'?  These little balls would somehow form in the wave soldering process and sometimes break loose and sometimes cause issues.  I would often find them when opening stuff for repair.
Matt
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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