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Adjust keyboard sensitivity?

Posted on 2006-07-14
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Last Modified: 2008-01-09
Hi, I have a new laptop, an Acer Travelmate4202, and the keyboard could be more sensitive for me. Anyone know if the sensitivity can be adjusted? I'm running XP home, if that matters at all. Thanks!
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Question by:mel200
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eudmian earned 1000 total points
ID: 17111992
The operative word is 'can' here.  Yes it can be, but it is not easy nor cost efective.  

Most keyboards these days, especially on laptops use flexible membranes as their contacts.  There are two primary methods of manufacture, one utilizes a standard PC board and a rubber mat with carbon pads in the rubber.  The other utilizes a flexible plastic (like DuPonts Kapton) with a layer of contacts, a spacer, and another layer of contacts.  Both then put the plastic frame for the keys on top.  The keys have small springs which just keep the key up, not affecting sensitivity and a shaft down the middle.  The shaft then presses on the rubber pad or flexible film beneath.  The actual sensitivity is based on the durometer (hardness) of the rubber or the thickness of the Kapton.

The only practical solutions would be:
1. Replace the keyboard.  A new keyboard is usualy less sensitive though.  
2. Tighten the fasteners inside.  If the laptop is an older one you may try opening the unit up and tightening the screws that hold the keyboard up to the key frame.  

Other than that you are looking at a custom designed short run membrane which will cost thousands.  It is cheaper to get a new laptop in that case.


Example of the inside manufacturing can be seen here:  http://www.millerdial.com/images/grey-circuitboard.jpg
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Author Comment

by:mel200
ID: 17112210
Thanks- I was kinda hoping the answer would be, "sure just hit this function key", or, "open the control panel and..." Oh well. live and learn. :)
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Expert Comment

by:eudmian
ID: 17112318
Like I always say, if it were easy everybody would be doing it!  Sorry I couldn't have been more help.

Cheers!
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