The TV, and all your gear, will work fine presuming you don’t have a 4K source device.
You can do this with an optical digital audio connection, which nearly all 4K TVs have.
Or, if your TV and receiver are Audio Return Channel-compatible, you can use the same HDMI cable used for the “monitor” connection.
How do I connect my 4k TV to a non 4k receiver?
If the HDMI jack on the TV is labeled ARC and is not HDCP 2.2 compatible, connect the receiver to the HDCP 2.2 compatible HDMI jack on the TV using an HDMI cable. Then, connect an optical digital cable to the optical output jack of the TV to listen to digital sound.
Do you need a 4k TV for a 4k Blu Ray player?
Yes, the 4K Blu-ray works on a regular TV, but when you play 4K Blu-ray disc onto it, you can’t catch 4K resolution, sometimes, 4K Blu-ray disc can’t be played smoothly due to codec incompatibitity issue. If you want to watch 4k, you need the following: a 4k video (not 1080 upscaled)
What does 4k Pass Through mean on a receiver?
A feature of an A/V receiver that allows a video source to pass unaffected through the receiver to a 4K TV without any processing. For example, all 4K content from a 4K source or an upscaling 4K Blu-ray player must be passed directly to the 4K TV. Some receivers also include 3D pass-through for 3D content and 3D TVs.
What cable do I need for 4k?
What kind of cables will I need for 4K? The two standard cables you’re most likely to use are either a standard HDMI, or if you’re connecting a PC to a Ultra HD monitor, DisplayPort.
Photo in the article by “Wikipedia”