Sony STR-ZA3100ES Help Manual page 141

Enjoying video and sound in two locations via an HDMI connection - Zone 2
You can enjoy movies and music in another room by connecting a TV or different AV receiver located in another room to
the HDMI OUT B (ZONE 2) jack. For example, movies or music from an AV device located in the living room can be
played at high quality in a bedroom.
Note
There are restrictions on the audio sources that can be used in Zone 2/3. For details, see "Available input sources for each zone."
Related Topic
Available input sources for each zone
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