If you have an optical cable, check the clear lens at the end of the plug; it must be clean to transmit the light signal accurately. Sound not coming from a TV is a common issue that spans across all brands and model years, from older CRT sets to the latest OLED panels.
Troubleshooting Steps for TV Sound Not Working
Inspecting the Hardware and Cables If the basic functions do not restore the audio, the issue is likely physical. If the TV is set to the wrong input, it may display the picture from the correct port but output audio from a different one.
Next, use your remote to cycle through the input source options, such as HDMI 1, HDMI 2, or AV. 5mm Headphone Jack Analog audio output to soundbars Wrong port or loose plug Take a moment to physically inspect the cables.
Inspecting Hardware and Cables for Sound Issues
Loose or damaged cables are the number one culprit when sound does not work on a TV. Adjusting the Sound Output.
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