Dear All, I have uploaded all the possible interesting pics.
There is the module, the lcd holder, the keyboard (front and back),
the buttons.
The most interesting thing, is that the rubber DOES NOT need to conduct
It's true, it does in most of this type of watches, but not in this case.
Looking at the pictures, you will see that the keyboards contacts on the module are closed by pressing the yellow layer thru the keyboard holes.
As a matter of fact, I was able to get the watch in calculator mode, press two digits (8) with a toothpick, which is definetely not conductive.
This said, I can think of a couple of options :
Option number 1 : micro springs. these will be placed under every button and kept in place from the white plastic shield, and will also have the effect of keeping the buttons well "up".
Option number 2 : molding a replace part with some silicone and then have it underneath the keyboard like the original one. In this case I'm afraid that the silicone will be too soft and will not apply the right pressure to the keyobard layer.
Also, I need to figure out how to replace the gasket that keeps in place
the faceplate of the keyboard. I suspect that originally is was all in one
with the rubber layer.
What do you says ?
There are often a number of these pieces on the "auction site" at cheap prices, exactly because of the keyboard failure, so I thought that the study of a replacement may be of interest for few of us.
Thanks in advance for any help, tip or advice.
take care Alberto