Question about Acer Aspire One PC Notebook
Unplug battery and try to turn the system on when it is plugged in . if this does not work then you are looking at a motherboard issue this model from acer is a real dependable unit I own one myself and are fun to work on .
Posted on May 15, 2010
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Posted on Jan 02, 2017
It really sounds like you have a short in the ac adapter. Laptops dim the backlight on the screen when on battery power and go full brightness when on AC. I think your adapter is going on and off. When it is on the screen is on full and when it goes off the screen dims down a bit. You could have a bad adapter, most likely, or a bad charging jack in your laptop. Check the adapter first, just use a multimeter set to voltage. Read lead goes to the center pin and black lead goes to the outside metal contact, you should get a reading of 18 to about 26 volts. Move the wire around near the plug that you are holding and keep checking the readout. I think you will find the voltage dropping as you move the wire.
I hope this helps, If so please rate my solution.
Posted on Jul 08, 2009
SOURCE: When I turn power on
Have you tried turning it on using your adapter? If there is still no power light, try removing the power jack in the laptop and the power cable in the adapter and re-insert it both then plug it then test it again. If there is still no power light, try bending slowly the power jack cable in the laptop while inserted and slowly bend and move until you reach the power adapter. Observe the power light while bending the cable. If the light turns on while bending, the wire/s on the cable might be cut where you bend and see the power light turning on. If there's still no power light, your power adapter or the laptops power supply might be defective.
Posted on Sep 25, 2011
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