Re: cant hear sound
Click [here : Link](http://tim.id.au/laptops/acer/travelmate 4220 2480 aspire 5600.pdf)
P.S: If you do not know basics of how internet links work how would you be able to disassemble and then reassemble your laptop. (Just kidding. 
) all you needed to do was copy and paste the whole link up to .pdf and it would have worked.
P.S 2: Please disassemble and reassemble your laptop at your own risk. I cannot be held responsible for your lack of experience in these things. If I were you I would take the laptop back to the guy who fixed it the first time you got it twisted.