Question about Dell Latitude C640 Notebook

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Dell latitude C640

I just replaced the screen on my laptop. Now when I hook it up to charge the battery, the battery charger seems to overload and the green light shuts off. With the power I have left in the battery, the computer is working with no problem. As far as I can tell the only problem is that the charger is short circuiting, but I can't find why. Any ideas?

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  • ks1tx3ca1 Oct 02, 2008

    I forgot to mention that I have two adapters and the same thing happens to both of them. So must be something else. I found some info on the net where some who had the same problem replaced the DC charger card on the motherboard. However, I have not had any success finding the part if there is one.

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You might want to try another AC adapter. If it works, then call up Dell and have replacement on the AC adapter. Otherwise, call up Dell and have them check your motherboard. If the warranty is still active, then can still definitely replace that.

Posted on Oct 02, 2008

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Try using the A/C adapter without the battery connected and see if your unit boots.
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Instead of spending alot of time trying to do something that could potentially harm your laptop..why not just buy a power supply?

You can get one here Click here for about 16 dollars. That's a great deal they are usually about $60 and its a Dell brand not some off brand.

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I think you are wasting a lot of effort, I know how you feel and sometimes you cannot win.
Junk it for parts.

I do volunteer work for Technical Aid For the Disabled (a charity organisation) and repair/refurbish laptops and computers for disabled people and I hate to see good computers go to waste.

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