Will my old Sony DVD receiver work with a Sony 4K Blu Ray player?

I'm looking to buy a Sony UBP-X700 4K blu ray player pretty soon. I saw that it has dual HDMI connections which would allow me to have one HDMI cable connected to my Vizio 4K TV and another HDMI cable to plug into my old but still capable Sony DAV-DZ170 as an audio-only connection. My receiver only has one HDMI port in the back and it's 'HDMI out'. My question is would the dual HDMI option on that 4K Blu Ray player even work with my receiver since the sole HDMI port on it is an output? Forgive the dumb question, my brain is taxed.
Answers

spacemissing

An output cannot act as an input. An input cannot act as an output. There are a (very!) FEW pieces of equipment --- but Not Any disc players --- in which a single connection can be switched from being an input to being an output. This is an Extremely Rare feature in consumer products, so don't look for it.

inconsolate61

Don t buy things that are incompatible with your other equipment, unless you are ready to upgrade your other equipment. There are players that have analog (RCA) audio outputs on them, so forth. Why purposely buy an incompatible player? Save a nickle on the player so as to make certain you need to spend 500 bucks on a new receiver is not common logic. Yes, the industry WANTS you to run right out and buy lots of their stuff. But there is always compromise gear made available in any changeover market, if you look for it. And yes output is output, input is input.

Crim Liar

The outputs on the back of the unit are a HDMI Audio/Video output and a HDM Audio only output. The problem is that your Reciever only has a HDMI Audio/Video output. So that's three outputs and no inputs, and from what I can find there is on "ARC" (Audio Return Channel) on the HDMI of the receiver Depending on what you are trying to do though, you should be able to connect up the audio from the TV or the BlueRay via the SP/DIF connection. *Instructions are in the user manual!