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So you have removed the battery from this laptop for at least 30secs - 1minute? Not really sure about a laptop fuse? Test your DC jack for continuity - with a volt meter - outside prong and inside stem. Those will be the first few steps to finding your issue. Troubleshooting Laptop Adapter and DC Jack
DC Power Jacks for the most part are soldered onto the motherboard. There are some models where the DC Power Jack and the cable harness just sits in a slot on the motherboard. And there are some models where the DC Power Jack is soldered on a little circuit board that is secured by screws to hold it into place. In any case to get to the Internal DC Power Jack you have to disassemble the laptop. And if it's soldered onto the motherboard, you will spend time unsoldering the old broken Jack before you can install the new one. Get a quote from a local repair shop, then check the guys out at: http://www.generalsystemsconsulting.com They will repair it and ship it back to you via Fedex or UPS cheaper than most quotes you get including the shipping charge.
After the battery and AC cord replacement and still not getting power there's only once culprit there and that is the motherboard of the laptop. I recommend you call Acer and have them replace it for you. Thanks
Sorry to hear that you are still having trouble. The only other thing to try is your battery on your buddies notebook. If it works there then it is the charging mechanism on your notebook and this would mean replacing the motherboard.
Either the center pin on the dc plug or the small tension band inside the DC jack is loosing its spring, this spring action is what holds tension on the shaft of the pluug. The center pin that conducts the positive charge tends to break its solder point and therfore the chrge unless it is manipulated, the jack at this point needs to be replaced.
Try another battery in the laptop to make sure the battery isn't bad. If you do that and the battery still doesn't charge then go ahead and try a different ac adapter.
If neither of these two steps solve it then it could be that the solder points underneath the DC Jack have hairline cracks in them. If this is the case then you'll have to get the motherboard out of the laptop and then with a soldering machine and some solder, you'll have to resolder all the solder points of the DC Jack to solve the problem.
That should take care of the problem but if it still doesn't charge then the motherboard is bad and would need to be replaced.
Basically it is just a matter of desoldering the old one, using a desoldering iron with a pump to remove the excess solder the resoldering the new one. Since you're willing to sacrifice, it can't hurt just be careful how much heat you apply because with multi layer boards you can easily screw something up by applying to much heat or solder. Good luck and please take a moment to rate as fixya.