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I am using HDMI as well as digital optical out for audio, both attached to a receiver that outputs to surround speakers.
Sorry, there was a problem. Please try again later.The LG 43 Inch Class 4K HDR Smart LED TV (42.5'' Diag), Model # 43UM6910PUA has an HDMI ARC port on it and an Optical Digital Audio Output that you can send audio through depending on the which connection you use to send the audio through to the connected audio device. You will need to fo into the Sound Out settings to select which path you want the audio to be sent through. You can select to send through the Optical Digital Audio Output or send it through the HDMI ARC port...^IFV
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