Adjusting the Sound Output. Before assuming a major hardware failure, it is important to systematically check the audio signal path, which includes the TV speakers, external soundbars, and home theater receivers.
Fixing Optical Sound TV Audio Output Issues
Swapping out a known faulty cable with a new one is often the fastest way to confirm if the wire is the problem. Next, use your remote to cycle through the input source options, such as HDMI 1, HDMI 2, or AV.
Plug the devices back in and power them on in the following order: the television, the external device, and finally the soundbar or amplifier. Ensure that the HDMI cable is firmly seated in both the TV port and the device.
Configuring Optical Sound Output for Your TV
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. This allows capacitors to discharge and resets the hardware.
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