You can check the product for any abnormalities by performing a sound test.
If the voice in the sound test sounds normal, it may be a problem with the broadcasting signal, not the product.
Contact your service provider. (Wired, cable, Sky life, IPTV, etc.)
If the voice in the sound test does not sound normal, it is necessary to have the monitor checked by an LG service technician for an accurate diagnosis.
Try this
Performing [sound test]
Use [Sound Test] in the TV settings menu to select the menus in the order as shown below.
➔ Performing [sound test] in webOS 22
1. Turn on the TV and press the [Settings] button on the remote control.
Select [All Settings] from the [Settings].
2. Select [Sound Self-diagnosis] from [Support].
3. Check the sound status in the [Sound test].
The volume level changes to 20 when the test voice is outputted.
When the sound test is finished, the volume level changes back to the previous voice level.
➔ Performing [sound test] in webOS 4.5
1. Turn on the smart TV monitor and press the [Settings] button on the remote control.
Select [All Settings] from the [Settings].
2. Select [Additional Settings] from [Customer Support].
3. Select [Sound Test] from [Additional Settings].
4. Check the sound status in the [Sound test].
※ If there is no [Settings] button on the remote control, you can access the Settings menu by pressing the
button among the buttons on the remote control.
This guide was created for all models, so the images or content may be different from your product.
