My OS X (Maverics) has lost sound

[Oops69]

Hi all! I need your help! My OS X Mavericks has lost sound and I can't listen to anything with or without earphones. I tried to fix it at System Preferences, but no use. Then I restored my PC to factory settings, again no result. Now I think maybe it is a physical damage, because very often I used to push hard my earphone connector into the jacket and now there's no red light in it. IS there any place in Toronto where they repair physical damages? And how much would this cost? Thank you!

 

[Oops69]

I have already talked to Apple customer service, they advised me to go to Apple Store in Fairview Mall, they will look at it and decide whether it's a physical damage. I don't know how much they are going to charge me, but whatever the cost would be, I can't afford a new PC at the moment.