If You Hear No Sound from Your TV, run Sound Self-diagnosis to check if your TV speakers are working properly.
Check the sound output settings, the volume on any connected external devices, and the cable connections.
Why Is There No Sound from Your TV?
- The connected set-top box or external device is muted or its volume is set to zero. Its volume is controlled separately from the TV volume.
- The HDMI cable connecting your TV and external device is not securely connected or is damaged.
- Your TV is set to output sound through an external speaker that is not connected instead of the TV speakers.
- Your TV may have a hardware issue.
How to Check and Restore Sound on Your TV
Step 1. Run Sound Self-diagnosis
Press the Settings button (gear icon) or the Mute button on your TV remote three times in a row.
- If the self-diagnosis sound plays normally, your TV is working properly. Check the broadcast signal and any connected external devices.
- If the test sound plays normally, check the HDMI cable connection and the settings and condition of the connected external device.
- If the same sound issue occurs during the test, Your TV may need service.
- For 2024 or newer OLED TVs (webOS 24 or later): Press the Settings button on your remote, then select All Settings, Support, and Sound Self-Diagnosis.
- For OLED TVs from 2021 through 2023 (webOS 6.0 through 23): Press the Settings button on your remote, then select All Settings, General, OLED Care, Device Self Care, and Sound Self-Diagnosis.
- For 2021 or newer TVs (webOS 6.0 or later): Press the Settings button on your remote, then select All Settings, Support, and Sound Self-Diagnosis.
- For 2020 TVs (webOS 5.0): Press the Settings button on your remote, then select All Settings, Support, Additional Settings, and Sound Test.
- For 2019 or older TVs (webOS 4.5 or older): Press the Settings button on your remote, then select All Settings, Sound, and Sound Test.
Step 2. Check Your Set-Top Box and External Device Connections
Use your set-top box remote to unmute and turn up the volume.
Disconnect the HDMI cable from your TV and set-top box. Reconnect it securely to both devices.
Unplug your set-top box from the power outlet. Wait about one minute, and then plug it back in to restart it.
Step 3. Check Your HDMI Cable
Make sure the HDMI cable is securely connected to your TV and external device. If the cable is damaged, replace it with a working HDMI cable.
Step 4. Check Your TV Sound Output
Select the sound output that matches the connected audio device and its connection type, such as a soundbar or Bluetooth speaker.
Press the Settings button on your remote, then select All Settings, Sound, and Sound Out to check and select the appropriate sound output.
Step 5. Still Need Help?
If the issue persists after following the steps above, you can get further support through LG Chatbot on our website or by requesting a technician visit.
Frequently Asked Questions
- Q. Why Don’t I See the Volume Level When I Press the Volume Button on the Remote?
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A. This may happen when your TV is set to output sound through an external speaker.
To resolve this, go to your TV sound settings and change Sound Out to Use TV Speaker. The volume level will then appear on the screen.
- Q. Why Is There No Sound from My Set-Top Box if the Self-Diagnosis Sound Plays Normally?
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A. Unmute your set-top box and turn up the volume. Unplug your set-top box, and then plug it back in.
If the issue continues, contact your service provider.
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This guide is based on standard models. The settings menu may vary by model.
