Help... I have a little trouble with my acer aspire 5520.
When you plug the charger in, but not in the laptop, it makes a very dim high pitched noise. If you plug it in the laptop too, it stops but the high pitched sound now comes from the laptop, even if it's turned off. Otherwise, the charger led is on, and the battery is charging, but the noise can't be right.
At first I thought it was the charger, and I bought a new one... Same thing. So it's not it.
Note: I've lost the warranty, I have to manually replace whatever's wrong...
Any ideas or suggestions what it might be?