If sound card of your computer is damage, before repair it, alternatively you can do this solution with simple, no need to open the cover of computer/CPU case, no need to change/replace the old sound card. You just connect/plug a small USB Sound card into USB port of your computer or notebook.
Using this USB Sound card is not only if your internal sound card have a problem., quality may become a reason.
You can try to use this USB sound, whether the sound produced is better or worse than sound produced by your internal sound card.
I like it because the sound quality produced by this usb sound card is better than output from my Laptop (internal sound card)
The price is cheap, only about 2$ US , you can buy from local computer accessories store, or buy from online store. use key word : usb sound card to search and look for the online store.