I'm very glad for your detailed answer. I'm a big fan of repairing small faulty parts than just replacing big components.
The screws unfortunately seem to exist only on the Yoga 2 13 _Pro_.
At the moment I can't send a photo of the rivets, because I assembled it back together, to find out all the actual dead keys. I can do that later.
I'm also going to contact Lenovo.
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I watched the video you linked to, very well explained. I was already familiar with the row and column matrix of a keyboard or LED-displays, but how to indicate different keyboard-failures was new to me. I've marked the faulty keys [http://tinypic.com/r/m82zgw/9|in this picture]
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I watched the video you linked to, very well explained. I was already familiar with the row and column matrix of a keyboard or LED-displays, but how to indicate different keyboard-failures was new to me. I've marked the faulty keys [http://tinypic.com/r/m82zgw/9|in this picture] (this picture is just for the layout, it isn't actually a photo of my keyboard)
As you can see it does indicate to a row, but there also seems to be some randomness.
I suspect it's the cable (I will have a closer look at it soon) or the electric contacts of the keys.
These contacts can be restored using a graphite-liquid, as shown [http://www.qdev.de/?forcelang=de&location=electronics/keyboardrepair|here] (German, but the pictures should bring up the idea). Even though this is for very old keyboards, it may also be possible with modern keyboards.
This is a picture of an [http://tinypic.com/r/352p6ye/9|opened key]. Everything I could take apart yet was just the mechanic part. Under the gum I lifted up is the foil of the upper contact-layer, and unfortunately I don't see any chance to get under it. I tried pressing the key with a tool, no response. Swapping undamaged mechanic parts of a key can't change anything here.
Hi Abdur,
I'm very glad for your detailed answer. I'm a big fan of repairing small faulty parts than just replacing big components.
The screws unfortunately seem to exist only on the Yoga 2 13 _Pro_.
At the moment I can't send a photo of the rivets, because I assembled it back together, to find out all the actual dead keys. I can do that later.
I'm also going to contact Lenovo.
I watched the video you linked to, very well explained. I was already familiar with the row and column matrix of a keyboard or LED-displays, but how to indicate different keyboard-failures was new to me. I've marked the faulty keys [http://tinypic.com/r/m82zgw/9|in this picture]
As you can see it does indicate to a row, but there also seems to be some randomness.
I suspect it's the cable (I will have a closer look at it soon) or the electric contacts of the keys.
These contacts can be restored using a graphite-liquid, as shown [http://www.qdev.de/?forcelang=de&location=electronics/keyboardrepair|here] (German, but the pictures should bring up the idea). Even though this is for very old keyboards, it may also be possible with modern keyboards.
This is a picture of an [http://tinypic.com/r/352p6ye/9|opened key]. Everything I could take apart yet was just the mechanic part. Under the gum I lifted up is the foil of the upper contact-layer, and unfortunately I don't see any chance to get under it. I tried pressing the key with a tool, no response. Swapping undamaged mechanic parts of a key can't change anything here.