TV has coax digital audio output (1 RCA jack).
Receiver has analog audio inputs (2 RCA jacks).
You will need a digital to analog converter, a coax digital cable and a stereo audio cable to connect them,
Here's a link to the TV manual
https
/www.manualslib.com/manual/521425/Emerson-Lc320em2.html?page=26#manual
You may have to activate the digital audio out on the TV, turn the TV speakers off, and change the audio output type to get it working.
You can use any input on the receiver except for one marked "phono".