Please review the following steps to troubleshoot the no audio issue:
- The sound might be muted. Try pressing the volume up button to restore sound.
- Check if the issue continues with the other channels. Do a channel search and if there is only one channel with no sound, there is a possibility that the signal strength of the network is poor, or the incoming broadcast may be having technical issues.
- If you are using DVI or Y, PB, PR, remember to also connect the device's left and right audio output jacks to the TV's L and R AUDIO INPUT jacks.
- If the TV is connected to a different device such as a cable or satellite box, DVD, Blu-Ray, etc. make sure that the cable connection is correct (red and white cables for audio). Check if the external device has a volume controller and try adjusting it.
- Change the TV sound type to “mono” or “stereo”. Refer to the instruction book on how to change the sound type.