Chosen Solution
Hello, I have a Vizio XVT323SV, 32 inch. Out of no where one day, the sound stopped working. Everything else works just fine and the picture is perfect. All the built-in tv apps also work fine. There is just no sound. There is no sound when headphones are plugged in either, no matter the video source or built-in app playing. I would rather not replace the entire tv if I can replace a specific part myself. What do you suggest the cheapest way to fix this is? And if a part does need replacing, what part would that be? Thanks!
Jennifer Ferrara first you want to try to reset your audio settings in the menu first
If that does not work, you will have to open up your TV. Since your headphones do not work it is unlikely that it is that amplifier IC that failed since it does only affect the speakers. I would focus on connector J20 and the fuse F8 on the DC power In board.
Check the wiring coming from the Main board to the power board and see if you have power (18V) on that.
Let us know what you find. If you are having difficulty with any of the boards, post some images of those with your question. For that use this guide
