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[LG TV Sound] Audio is not working even when changing channels

Troubleshooting

If you lower the TV master volume to the minimum level (0) or mute it Speaker button, no sound comes out of the TV.
Turn up the TV volume and see if the volume changes accordingly.
If you are using a set-top box, check if the audio is working by adjusting the volume with the set-top box remote control.

Causes and Symptoms

  • Speaker settings have been changed.
Image with set-top box volume and TV volume displayed on the TV screen
Note
If the volume display does not change as illustrated below, it indicates that an external speaker is set as the output.
Please set the internal speaker as the output.
Image showing that the Tv cannot adjust the volume
Set-top box program errors may affect the audio (active video without audio).
Image Switch off the 3rd-top box power switch and turn on 5 seconds

Try this

The volume indicator does not appear on the screen while adjusting the volume?

➔ Change the output speakers in the TV Settings menu.

Changing the [Sound Out] option in Settings.
Turn on the TV and press the [Settings] button on your TV remote.
Select [All Settings] in the [Settings] menu.
Image of selecting an all-setting menu by pressing the settings button on the TV
1. Select [Sound Out] in [Sound].
Make sure the internal speaker is set as the output speaker.
If it is set to the internal speaker, skip to the next section.
Images that select Sound Out in Sound Settings
2. Set [Sound Out] to [internal TV Speaker] if it is not set as such.
Test the volume after setting [Sound Out] to [internal TV Speaker].
Image of selecting an internal TV speaker in the sound-out settings

Volume control works okay, but no sound comes out

➔ Select [Sound Test] in the TV Settings menu and perform the test as follows.

Conducting [Sound Test] in Settings.
Turn on the TV and press the [Settings] button on your TV remote.
Select [All Settings] in the [Settings] menu.
Image that selects all settings by pressing the settings button on the remote control
1. Select [Sound Test] in [Sound].
Image that selects a sound test in the sound settings
2. Check if the test sound comes out normally after [Sound Test] is selected.
If it works, the problem is likely due to the set-top box.
Please contact the provider of the set-top box.
Image that displays a completed sound test message on the TV screen
Wait! Find out more.
If the set-top box is turned off, the “No Signal” message appears on the TV screen.
Check if the set-top box is on.
Image with green light on set-top box power light
Set-top box errors may result in the “No Signal” message even when the device is powered.
Image Switch off the 3rd-top box power switch and turn on 5 seconds

※ If the problem persists after the actions are taken, contact our service technician for diagnosis and precise check.

This guide was created for all models, so the images or content may be different from your product.

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