Question about Dell - NPS-200PB-73M (NPS200PB73M) Power Supply

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DELL XPS M140 POWER ISSUE

My Dell laptop won't take a charge through the power supply from the wall outlet. If I plug the power supply into the wall, the green light on the power supply itself comes on no problem. As soon as I try and plug the power supply into the laptop, the light goes out and there is no charge taking place. Thank you for any assistance you can provide. Brendan Ramroth

jujomec375@msn.com

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Hi brendanram!

I am claudus_07 and i was a Dell - XPS Technical Support Specialist before so i will be glad to assist you with your concern.

As you said into your post, you tried plugging the AC Adapter to the power source without plugging the other end into the XPS laptop and the Green Light on the adapter is lit. But when you plug the jack on the laptop, the Green light is out. As for my experience on your laptop, there could be a problem with the power supply or the motherboard of your XPS laptop. Because everytime you plug the adapter to the laptop, the green light is going out so it means that the laptop or the adapter is grounded.

Here's what you need you to:

Step 1: Call Dell XPS Technical Support 1-800-624-9896
Step 2: Tell them the issue and the things that youve done.
Step 3: At the end of the troubleshooting, i know that the Technician will either replace the Power Supply, Motherboard, or the Adapter. (if you have a friend that has a Adapter same as yours, you may try to use it just to isolate the issue the Technician will choose from the Power Supply or the motherboard)
Step 4: If the Technician replaces the power supply and the issue still persists, call technical support again and ask them to replace the motherboard, no need to repeat the troubleshooting steps anymore just tell them that youre already done with it. (Dont ask for a system exchange, because i know that they will not give what you want.)

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Good luck and thank you!

- claudus_07™
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www.romaragregado.tk

Posted on Jul 27, 2008

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Hi,

Two possible suspects:
the AC cord connecteing the adapter/power supply to the wall outlet. It is possible that the cord/plug junction has an intermittent connection internally. Solution would be to cut the plug away and replace or purchase and entirely new cord;
the power supply itself (the adapter). All points considered, they are often replaced, not repaired. However if you are technically inclined and wold opt for a DIY (do-it-yourself), components to check would be regulator transistor, filter capacitor and/or the regulating 4~8 pin IC.

Alternately, it is also (though remotely) possible that the laptop has an internal short (reverse/over protection diode) soldered directly to the terminals of the power jeck.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jul 27, 2008

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