Question about Dell Latitude C640 Notebook

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Keyboard A dell c640 the F1, 2 ,w, s ,x keys don't work on laptop i tried the keyboard from another laptop c610 dell and the 1, q, a, z, in addition to the key first listed can you please help

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This is a rather old question, but the solution might still be helpful to other readers.

I suggest you call Tech Support at Dell...

Several years ago, I worked on many Dell CPx 500 models in my work place. There was an issue that always involved a series of 4 or 5 keys (they were always the same keys) that would quit working and we had attempted to purchase new keyboards to fix the issue. It turned out, the real solution was to replace the 'motherboard' of the Latitude notebook!

Dell had knowledge about the keyboard/motherboard issue that we didn't know.

Posted on Dec 06, 2008

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Does the keyboard from the C640 work good in the C610? Also, have you tried an external keyboard? Does it work good?

Posted on Jan 11, 2008

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1 Answer

How to turn on/off my wireless switch on my Dell latitude c640


First make sure the Wireless device driver is installed. Press Fn+F2 keys together. This toggles On and Off for wireless adapter. Or find a key with wireless symbol around your keyboard. Or You can go into the network connections from the control panel and enable/disable the wireless network connection.

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I'm sorry to say this, but the water has killed your keyboard, and you will need to replace it. There's no way of fixing it, other than replacement.

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Normally you have to use Fn(function key) on your keyboard + F4 key (F4 or maybe some other key you have to see and icon on your F4,F10 key..it should look like a a monitor icon) try it.
Press Fn first and hold it and press F4....
The first time it should output only to your S-video,second pressing it should output both s-video and your monitor.
goodluck,takecare.

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1 Answer

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uninstall keyboard drivers from device manager and click scan for hardware changes automatically it will take drivers,again same problem will come attach the external keyboard and check if work keyboard problem on laptop

Mar 11, 2008 | Dell Latitude C640 Notebook

1 Answer

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You just need a new keyboard - those are easy to come by check ebay.com and search for C640 keyboard. New ones should only be about $30-$40.

To remove the keyboard you just remove all the screws on the bottom of the laptop that are marked with the letter "K" then carefully pop the keyboard up.

Let us know if you need further help!

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The keyboard can be replaced. Ebay is a great place to get one.
Here is the manual. It will show you how to change it.

http://support.dell.com/support/edocs/systems/latc640/en/index.htm

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2 Answers

Fn


The "Fn" key is on the lower left corner of your keyboard, to the right of the "CTRL" key. Best regards, torgo

Aug 09, 2007 | Dell Latitude C640 Notebook

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