Laptop sound not working. Tried many things already.

[computer_newbie_30]

Sony Vaio S, VPCSB28FJ
Windows 7 64-bit Home Premium
Audio: Realtek, Dolby

This problem occurred after I unattached the top section of the laptop.

Sound does not work even with volume maxed out.
I have tried connecting a working headphone to the unit and there is no sound to be heard on the headphone.
Volume icon has no red X on it and the volume bar (green bar) does jump when I click on the rocker in software.

The only time the sound works is when I connect a HDMI cable from the laptop to the TV.

I've already made sure the software/driver has been installed for this unit.

 

[kenrivers]

Did you check to make sure that there are no loose connections before you reattached the top section of the laptop?

 

[computer_newbie_30]

Yes I did.

Is sound chip or whatever it's called that controls the audio on the laptop integrated with the motherboard? I tried using the top section (with all the speakers and audio port boards) with a similar unit and it works fine. So it has to be something with the bottom portion.

 

[kenrivers]

My guess, since it is a laptop, is that the sound controller is integrated onto the motherboard. You could try something like this from NewEgg - http://www.newegg.com/Product/Product.aspx?Item=N82E16829102025&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Sound+Cards-_-N82E16829102025&gclid=CMb1ttmGzrUCFQk4nAodnDgANw if you cannot find a solution to the sound problem.

 

[computer_newbie_30]

Ken, you are right! I just came to the exact conclusion today but decided to purchase a new motherboard... and man is it expensive - $210 since it is for a newer model laptop.

I should buy a soundcard instead I guess.

 

[kenrivers]

Yeah, the laptop motherboards are not inexpensive. If you are not confident you can replace it yourself you will pay about the price of a new one between the cost of the motherboard and paying someone to install it. The less expensive option is the sound card.