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Dell c640 charger cable schematics

Last response: in Laptop Tech Support
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January 12, 2011 12:43:31 PM

Hello,
how many pins should be present at the end of the charge cord for a Dell C640 laptop?
January 19, 2011 11:07:41 AM

I already have the service manual, but it does not give any information about the power cord. Thanks for the reply though!
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January 26, 2011 5:21:09 AM

tommyengland said:
Hello,
how many pins should be present at the end of the charge cord for a Dell C640 laptop?

See the picture below of Dell latitude C640 ac adapter:
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January 26, 2011 9:01:51 PM

At the end that plugs into the laptop there are 3 holes. In my charger cable, only two of the three holes actually have pins in them. I know it is not the original charger and wonder if it is missing a prong, causing the battery not to charge. Does anyone know how many of the 3 holes should have pins?
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January 27, 2011 7:21:40 PM

Sorry I hadn't come abck to look at this... I have not seen a charger like this at all and I am guessing that you must be running on the European electrical system (I know big stretch given your sn) and I have already stated that I am piss poor at answering questions on your electronics as I know nothing from the wall plug to the computer on your wiring set ups "across the pond". My suggestion would be to jump on e-bay and see if you can buy a used one cheap.
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January 29, 2011 1:32:58 AM

No this is the charger I have. It is not European. I just need to know how many pins are in the small end of the plug in the picture. Three holes, but how many have pins?
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February 2, 2011 2:09:03 AM

There should be 3 pins at the DC power jack on the laptop itself and 3 holes in the business end of the charger. No one has made a charger that works on these units with less than 3 holes on the charger. I'll look at a CPi I've got on the scrap heap to be sure.
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February 3, 2011 1:02:32 AM

How many of the 3 holes on the plug that plugs into the laptop should have pins in them. The plug that I have has 3 holes but only 2 of them have pins in the holes. Is this right?
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January 12, 2012 5:02:45 PM

I know on my 620 there are only two wires going to the connector.

I'm trying to find a new end connector only but not having any luck.


Anyone know where I might find one?

Talking about the plug on the end of the charger (Just the part that plugs into the computer)
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