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The HDMI ports are for input, not output. Best quality audio would be from the optical digital audio out port located on the back of the TV.
Sorry, there was a problem. Please try again later.Hi Fergy. The LG 4K UHD HDR Smart LED TV - 43" Class (42.5" Diag), Model # 43UJ6200 has an HDMI IN/ARC port that has to be connected to an HDMI port on your receiver that supports ARC functionality and you have to set the SIMPLINK (HDMI-CEC) to On in the TVs settings menu. A high-speed HDMIⓇ cable with CEC (Consumer Electronics Control) function is required to use SIMPLINK. Pin 13 of the high-speed HDMIⓇ cable is used for data transfer between devices...^IFV
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