It’s possible that your Smart TV may need troubleshooting from an audio source, cables or connections. The following is a list of steps you can take to help troubleshoot:
- Check the TV menus for audio output settings to make sure the correct audio format and channels are set.
- Try connecting the audio source to different audio jacks on your TV.
- Ensure the sound destination is turned on and set to the desired level.
- Check the volume and mute buttons on the TV and audio source.
- Re-connect any audio cables that may be loose.
- Check the display mode settings on your TV.
- If running audio through an A/V receiver or digital sound system, check to make sure both devices are powered on and the necessary cables are connected.