Before troubleshooting can be started, you must first determine whether an external audio device such as a home theater system is being used for audio or jus the TV speakers.
Note: Most new LG Televisions do not have the analog audio (Red/White) outputs.
Using a Home Theater System as audio output:
Connect the Cables Securely
Check the Source
Using the TV Speakers:
Perform a Sound Test
Perform a factory reset
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