Sir my name harish i am using acer extensa 4620 laptop sir my laptop is repire because of broken hings and power botten is not working. please telll me the how to solve this problem please tell me the answear. please send me the answear to my email id g.harish442@gmail.com this site first time using in am in visakhapatnam please give me the service centers in visakhapatnam near him i will went to go thankyou sir.....