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LG TV - Troubleshooting Low Audio

  • Troubleshooting

At a Glance

  • If the TV volume is low even after you turned it up, please check the volume on the set-top box.
  • If the volume is turned up and the audio is still low, you can run a sound test to determine whether the TV sound output is abnormal.
  • If the voice in the sound test sounds normal, it may be a problem with the broadcasting signal, not the TV.
    If it’s an issue with the broadcast signal, you can reset the set-top box to resolve it.
    If the rest does not solve the issue, please contact your carrier. (e.g., cable TV, Skylife, IPTV)
How to set the AI sound from the Settings menu by year

[2021 WebOS6.0] Press the Setting button button on the remote control and select [All Settings] → [Support] → [OLED Care] → [Device Self Care] → [Sound Self Diagnosis].

[2019 WebOS4.5] Press the Setting button button on the remote control and select [All Settings] → [Sound] → [Sound Test].

[2018 WebOS4.0] or before Press the Setting button button on the remote control and select [All Settings] → [Sound] → [Sound Test].

Try this

Running [Sound Test] on [2022 webOS22]

Press the Setting button button on the remote control and select [All Settings] → [General] → [OLED Care] → [Device Self Care] → [Sound Self-Diagnosis].

1. Turn on the TV and press the [Settings] button on the remote control.
From [Settings], select [All Settings].

Image that enters all settings by pressing the setting button on the remote control

2. Select [OLED Care] from [General].

3. Select [Device Self Care] from [OLED Care].

4. Select [Sound Self-Diagnosis] from [Device Self Care].

Image of selecting acoustic self-diagnosis in device self care

5. 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.

Screen appearing in sound test

Running [Sound Test] on [2022 webOS 5.0]

Press the Setting button button on the remote control and select [All Settings] → [Support] → [Additional Settings] → [Sound Test]

1. Turn on the TV and press the [Settings] button on the remote control.
From [Settings], select [All Settings].

Image that enters all settings by pressing the setting button on the remote control

2. Select [Additional Settings] from [Support].

3. Select [Sound Test] from [Additional Settings].

Image of selecting sound test in Additional Settings

4. Check the sound status in the [Sound test].

Image of checking voice status in sound test

Resetting the set-top box

1. Turn off your TV using the remote control.

2. Turn off the power switch on the back of the set-top box, wait for 5 seconds, and turn it on again.

Image showing the switch on the back of the set-top box

3. For models with no power switch, remove the power cable and wait 5 seconds before reconnecting it.

Image of unplugging and plugging in the power cable on the back of the set-top box

4. If the power light on the set-top box flickers and lights again, the reset is complete.
※ The reset method may differ by set-top box model provided by the mobile carrier.

Image of set-top box working normally

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

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