Question about Acer Aspire 3680 Laptop

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Phantom 'd' key

The 'd' character keeps coming up on screen without me pressing the key. It stops me from clicking on anything else and even when I delete the characters they keep poping up on screen as though I have the key depressed. I had the keyboard checked out and there isn't a short circuit or anything. It also stops me from rebooting properly.

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Re: Phantom 'd' key

There are only two reasons, that I know of, that would cause this problem. Either the keyboard or the keyboard interface chip on the motherboard. Of the two, I would suspect the keyboard more. Even though you have had the keyboard checked out, I'd suggest doing a double check. It could be the "D" key mechanism itself, the associated keyboard circuitry, the keyboard cable or the cable connector.
I don't remember, right off hand, does this model have a way of connecting an external keyboard? If so, try that. If it works, you've just verified 95% of the motherboard as being OK.
The ideal way of checking out a problem would be to swap out the keyboard from a similar unit, but would imagine you would have already tried that if you had access to one. If you are absolutely sure that the keyboard is OK, then the only choice that you have is to replace the motherboard. OH! One other thing to check might be the connector on the motherboard. Look at it very closely to insure that there is no foreign material in it and that all of the contacts are uniformly formed and lined up.

If I think of anything else, I'll let you know.
If you can add anything else that might help, or have any questions, please ask!

Posted on Nov 15, 2007

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