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Acer aspire 4920g charging mechanism failed

\015 I have an acer aspire 4920g and charging mechanism does not charge my\015\012battery so therefore i can not use it running on batery i wish to know\015\012how i can fix the problem and how much would it cost me to see whether\015\012i should buy a new laptop. first i thought its was a battery problem so i\015\012bought brand new battery but it does not charging the new battery and then i realise that the charging mechanism\015\012of my laptop failed coz the charging light do not turn on when i plug\015\012in the adaptor\015

Answers :

Have you tested the adapter to see if there is any power getting to your notebook period. Use a multimeter to check for DV voltage. If you can't get your multimeter probe into the middle of the plug then I use a paper click to get in there. If your adapter is not supplying any voltage then there is a problem with it. I get a replacement adapter for my wife's Acer on eBay for about $30. Just search eBay for 4920g and you should get quite a few hits for the ac adapter or power cord.
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\015\012If the adapter is providing power then the motherboard in your notebook is faulty since you've already replaced the battery. A replacement motherboard might be available from eBay. Replacing the motherboard could be complicated depending on your experience so I would leave that up to a notebook technician. An Acer certified shop may also be able to sell you a replacement motherboard.
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\015\012I don't think it's the motherboard, my money is on the adapter. Test it out or have it tested.
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