“I have a 4K firetv block connected to this receiver to an LG 4K tv through the arc port and it will not broadcast in true UHD. Is it the arc port preventing this, the firetv, or the tv itself. I’ve troubleshot everything but the receiver.”
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first make sure you have a true UHD cable and regular HDMI want enhance the signal. Check for picture that should tell you if your are running best available in top right corner of tv when powered on it will either say hd or uhd. Receiver if you are running true UHD it will auto enhance when you power it on its sets itself by signal of strength at least mine did
Sorry, there was a problem. Please try again later.Hello 4k, We do apologize for the inconveience. ARC is for audio only and it's not related to video. Be sure to use a High Speed HDMI Cable with Ethernet. When you use high bandwidth video formats such as 4K/60p 4:4:4, 4:2:2 and 4K/60p 4:2:0 10 bit, a Premium High Speed HDMI Cable with Ethernet, which can support bandwidth up to 18 Gbps, is required. More details: https://helpguide.sony.net/ha/strdh59/v1/en/contents/TP0001553102.html Regards, David
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