Dell PA-10 power supply LED turns off as soon as it is plugged into laptop

Hi folks,

My Dell Inspiron 1520 shut down completely a few minutes ago and would not turn back on.  The PA-10 AC Adapter LED was not on, so I disconnected it and reset the surge protector.  Plugged the PA-10 back into the protector and the LED came back on.  Plugged the other end of the PA-10 into the laptop and the LED immediately shut off.

The machine is out of warranty (by two weeks, thank you very much) so Dell support will only speak if paid.  

Does anyone have any troubleshooting tips?
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Jason C. LevineNo oneAsked:
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jmarti80Commented:
Try removing the battery and then plugging in the AC adapter and see if it will power on.  I would also suggest trying a different power outlet just to rule out and power spikes.  
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jamietonerCommented:
Well this is usually 1 of 2 things a bad ac adapter or a bad motherboard. Testing with another similar adapter would be the best way to troubleshoot this.
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Jason C. LevineNo oneAuthor Commented:
@jmarti80

Tried all of that.  The AC adapter powers a different Dell machine with no issues.  No power adapter (I have three Dells lying around) powers this machine.

@jamietoner

It appears to be a bad mobo.  Short of replacing it, what are my options?
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jamietonerCommented:
Does the power port on the back feel loose? If so replacing(or resoldering) it may fix it, but when it's the motherboard it's usually a bad charger board which requires a motherboard replacement. A replacement motherboards for this system range from $150-$200 on ebay.
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Jason C. LevineNo oneAuthor Commented:
No, it doesn't feel particularly loose to the touch.  It looks like a trip to the local laptop fixit store is in my future.  

Thanks to you both.
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jamietonerCommented:
Replacing the motherboard is not all that hard, here's link to the service manual from Dell.
http://support.dell.com/support/edocs/systems/ins1520/en/sm/index.htm
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