How to Fix an LG TV with No Sound: A Step-By-Step Guide
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According to reports from LG and AirBeamTV, LG TV owners experiencing no sound issues can often resolve the problem through simple troubleshooting steps such as checking volume settings, performing audio tests, and ensuring the correct audio output is selected in the TV's settings menu.
Step #1: Begin with a Quick Sound Check
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To quickly assess whether your LG TV's sound issue is caused by the TV itself or an external factor, perform a built-in sound test. The process varies slightly depending on your TV's WebOS version:
- WebOS 4.5 or older: Go to Settings > All Settings > Sound > Sound Test.1
- WebOS 5: Navigate to Settings > All Settings > Support > Additional Settings > Sound Test.1
- WebOS 6: Select Settings > All Settings > Support > Quick Help > Check Items > Self-Diagnosis of TV Settings, then choose Sound > No Sound.1
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However, if the test identifies a problem or you hear distorted audio, your TV may require service.3
Another quick troubleshooting step is to reset your LG TV's audio and video settings by pressing the mute button on your remote three times. Select "A/V Reset" from the pop-up menu to restore default settings, which can resolve various sound issues.4
If these quick assessments don't resolve the problem, systematically check your external device connections, audio settings, and cables to isolate the issue before contacting LG support for further assistance.5
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#2: Reset Audio Settings on LG TVs
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LG TVs offer several methods to reset audio settings, which can be helpful when troubleshooting sound issues. Here's a quick guide to the most common reset methods:
The A/V Reset is the quickest method and only affects audio and video settings, making it ideal for sound-specific issues. For more persistent problems, a full factory reset may be necessary, but this should be used as a last resort as it will erase all customized settings on your TV.
| Reset Method | Steps |
|---|---|
| A/V Reset | Press the Mute button on the remote control 3 times, then select AV Reset from the pop-up menu. 1 2 |
| Sound Settings Reset | Go to Settings > Sound > Advanced Settings > Reset 3 |
| Factory Reset | Navigate to Settings > All Settings > General > Reset to Initial Settings (Note: This resets all TV settings, not just audio) 4 |
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Step #3: Troubleshooting External Audio Devices If You Have Them
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When connecting external audio devices to LG TVs, several issues can arise that may result in no sound. Here are key troubleshooting steps to resolve audio problems with external devices:
- Ensure the TV's Sound Out setting is correctly configured for the external device (e.g., Optical Out Device for optical connections)1.
- Check that the external device's input is set to the correct source (e.g., optical input on a soundbar)1.
- Verify that all cables are securely connected to both the TV and the external device12.
- Try using a different input on the TV or external device to rule out issues with specific ports3.
- If using HDMI or optical cables, try swapping them out to eliminate faulty cables as a potential cause3.
- For set-top boxes, adjust the volume using the box's remote control to check if audio is working4.
- Perform an A/V Reset on the TV by pressing the Mute button three times and selecting "A/V Reset" to restore default audio settings35.
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Step: 4: Update Your Firmware
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LG TV firmware updates can sometimes cause issues or fail to complete properly. Here are some common problems and solutions related to LG TV firmware updates:
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Update does not complete: If the update seems stuck, unplug the TV power cord for 30 seconds, then plug it back in and retry the update.1
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Slow performance after update: Some users report their TV becoming very slow after updates, especially when opening apps. This may be due to new interfaces with more ads.2
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CEC (HDMI device control) issues: Updates can sometimes cause problems with CEC functionality between the TV and connected devices.3
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Update installation failures: In some cases, the TV may fail to recognize or install update files from USB drives, even when following the correct procedure.4
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Automatic updates: To avoid potential issues, some users recommend disabling automatic updates and manually updating only when necessary.2
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Final Words About Fixing Your LG Sound Issues
Resolving LG TV sound issues requires a systematic approach, combining troubleshooting techniques and technical know-how. From performing sound tests and resetting audio settings to checking external devices and updating firmware, LG provides various tools to diagnose and fix audio problems. Remember to verify cable connections, adjust volume settings, and ensure the correct audio output is selected. If internal TV speakers fail the sound test, consider external audio solutions or contact LG support for professional repair services. By following these steps, most users can restore crystal-clear audio and enjoy an immersive viewing experience on their LG smart TVs. Persistent issues may indicate deeper hardware problems, necessitating expert intervention to fully resolve audio challenges and optimize your LG TV's sound performance.
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