Check if the audio connector is secure at both the TV and the external sound system.

Check if the audio connector is secure at both the external source and the TV.

Check if the external sound system is switched on.

Check if the external source is switched on.

Check if the correct input is selected on the TV.

Check if the TV's Sound Out is set to correct sound out function.

Refer to the specific audio input and output scenarios to identify why no audio is heard on either the TV speakers or the external device speakers.

If the problem continues, please reach out to the manufacturer of the external sound device.

Ensure all sound settings in the TV sound menu are set correctly to work with the A/V system.

Use a different input on the TV or external sound source to ensure there are no issues with the input you are currently using.

Check if the external device volume control is set to the correct level.

Check if the connecting cable is secure.

If you have an external sound source attached:

If using the Internal TV Speakers, try a different content source to see if low volume continues.

Low audio can be caused by a low level incoming audio stream, or by incorrect menu settings on the TV.

If the problem continues, please proceed to our Request a Repair page. Reconfigure the Sound Out settings on the LG TV and retest.PERFORMING AN AV RESET WILL RESTORE ALL AUDIO AND VIDEO SETTINGS TO FACTORY SETTINGS Press the MUTE button on the LG TV remote 3 times.

However, if the audio distortion is on all channels or from multiple devices (If using an external device, try swapping out the HDMI/optical cable and retest). If the audio distortion is only present from a single device, then the TV is unlikely the cause.Check a different content source (internal app, TV channel, another device, etc.) to see if the distortion is still present.Another likely cause of audio distortion is the external device. Distorted audio can be caused by faulty audio circuitry in either the TV or external audio systems.

External apple dvd player has no sound