“Can both the eARC and digital optical cable be utilized at the same time? We have a device that HAS to be plugged into the digital optical cable outlet. We were wanting to add a sound system or sound bar using the eARC port. Thanks.”

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• The Digital Sound Out settings in the LG C9 65 inch Class 4K Smart OLED TV w/ AI ThinQ® (64.5'' Diag), Model # OLED65C9PUA can be set for either HDMI eARC or Optical. They cannot be set to output to both at the same time. However, setting eARC to ON in the settings turns Simplink on (HDMI-CEC) so that when the device that is connected to the HDMI eARC port is turned on, the TV will automatically switch to the right input...^IFV

  Answered by LG Digital Customer Care 5 years ago

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