This is how I got my Pioneer VSX-1122 AVR working.
in configuration.yaml
media_player:
- platform: pioneer
host: 192.168.0.xxx
port: 8102
name: VSX-1122
At first this did nothing. I checked the log and found:
WARNING (SyncWorker_11) [homeassistant.components.media_player.pioneer] Pioneer VSX-1122 refused connection
Than I read that sometimes the ethernet port hangs and the only thing to do was a power cycle by unplugging the power cable.
If you still can’t connect, check the ip address. In my case it changed, so I had to update the configuration.
After restarting the HASS server, the AVR showed up and I could select the source, control the volume and switch it on and off.