Sony STR-ZA810ES Manual page 127

Repeat steps 6 and 7 for other devices for which you want to use the Control for
8
HDMI function.
Note
Perform the steps above again if you unplug the HDMI cable or change the connection.
This function works only when [HDMI Out B Mode] is set to [Main].
[128] Using Other Features
Turning off the receiver and connected devices
simultaneously with the TV (System Power Off
function) (Standby Linked to TV)
You can turn off the receiver and the connected device automatically when you turn off the TV.
Select [Setup] - [HDMI Settings] from the home menu.
1
Select [Standby Linked to TV].
2
Select the setting you want.
3
Auto: When the input of the receiver is set to [BD/DVD], [GAME], [SAT/CATV], [VIDEO
1], [VIDEO 2], [TV] or [SA-CD/CD], the receiver will turn off when the TV is turned off.
On: The receiver will turn off when the TV is turned off, regardless of the input of the
receiver.
Off: The receiver does not turn off when the TV is turned off, regardless of the input of
the receiver.
Note
The connected device may not turn off depending on the status of the device.
System Power Off function may work with devices other than those manufactured by Sony, but
operation is not guaranteed.
[129] Using Other Features
Enjoying TV sound from the speakers connected to
the receiver (System Audio Control function)
Interlocking with BRAVIA TV and other devices ("BRAVIA" Sync)
Interlocking with BRAVIA TV and other devices ("BRAVIA" Sync)