Automation with LG beamer, PS4, Yamaha AV receiver and Yeelight

Hello guys,

I want to turn on Yeelight LED strips, PS4, Yamaha AV receiver and a LG PF 1500 beamer as soon as I entered the room.

For that I could need some help with the PS4 and beamer. With PS4 integration I can set up commands and turn the playstation to standby. But I cannot turn it off / on.

The LG beamer is not is not available in my Home Assistant because it doesn´t run on WebOS 3.0. Maybe I could wake it up over wifi, but how to shut it down? I tried to set up HDMI CEC over the Yamaha receiver with no luck.

Does anyone has a clue how to proceed here?

Regards