I have a Hisense TV (65U8G) and a Yamaha AV Receiver (RX-V675) and I'm unable to enable the ARC the function. In the TV's menu, the choice is grayed out.
I have the HDMI cable connected between the sole ARC port (HDMI 3) on the TV and the sole HDMI out port on the Receiver. I have the "HDMI Control"function enabled in the receivers menu.
At present, I have been using an optical cable between the former TV (no ARC) using AV4 which is the default. I understood the older ARC does not need any 'enhanced' cable to work. Is that correct? Yamaha's audio settings have always been confusing to me especially when it's a separate (non HDMI).
Any ideas or questions if my explanation isn't clear enough??