1. Posted: Oct 24, 2018. Options. The sound on my Smart LG TV stopped working for some unknown reason. Nothing different was done to the tv prior to going to bed. I found a reset button in the menu in the sound section, by resetting the sound it seemed to work. Sound is back with no issues so far. But if you're concerned that the maximum volume isn't what you remember, don't fret. Simply changing the Digital Output Audio Format to PCM can help. Samsung TV or projector has low audio when watching movies First, switch on the TV using the remote control. After that, press the Menu button on the remote control to open up the Vizio TV menu. Then, select Audio Settings. After that, select the Advanced Audio option. A new menu will open up and in that menu, look for the RSS TruVolume setting. Reset the TV's Sound. Samsung smart TVs allow you to reset the device's sound separately from the rest of the system. This can sometimes fix problems like stuck volume controls. To do this, go to Settings -> Sound -> Expert Settings -> Reset Sound. The process shouldn't take long. Check if your issue is resolved after each step. Unplug both ends of your HDMI cable, then firmly plug them back in. Try using a different HDMI cable to check if the cable is causing the issue. For HDMI 2.1, use an Ultra High Speed HDMI cable. For HDMI 2.0, use a Premium High Speed HDMI cable. In the TV menu, make sure that you select the HDMI GLXYL.

volume on tv not working