What can I do if the audio is abnormal when using ANT/CABLE RF/Coax IN port?

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If the audio is abnormal when using ANT/CABLE RF/Coax IN, please follow the below methods to do the troubleshooting:

1. Make sure the TV works with only one audio source. For example, if you use the Coax audio source and the USB media together, please remove one of the audio sources.

2. Plug the TV into the socket only, and unplug other electric appliances from the socket.

3. Change another cable to connect the video source to the TV if you have a spare one.

4. Try to restore the TV back to the factory settings: press the Home button on the TV remote. Then select Settings Device Preferences Factory Reset.

5. If the TV has internet access, please check if there is a new version of software updated online or not.

Press the Home button on the TV remote, and select Settings Device Preferences About System update Network Update:

If the issue cannot be resolved, please feel free to call the TCL hotline for further help.

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