xiaomi a pro

Hey guys! Just bought a 75" Xiaomi TV A Pro. I`ve paired it with a 2022 Apple TV box(HDMI port) and a JBL 5.1(eARC HDMI port) wireless suround soundbar. When I switch off the Apple TV box, the soundbar switches off but the TV stays on. All the CEC options on the TV are enabled. Also, with my...