yamaha rx-a680

Hi, I might have a RCA in to HDMI out problem. Here are details: Yamaha AVR RX-A680 connected to Old DVD player using AV2/RCA Composite. (DVD player too old no HDMI but has Optical and 2 RCA out) Yamaha AVR connected to new Samsung QN75Q8 using HDMI ARC. (Samsung TV no RCA Composite or...