Sony STR-ZA3000ES User Manual page 90

You can set the HDMI audio signal output of playback devices connected to the receiver via
an HDMI connection.
1. Select [Setup] - [HDMI Setup] from the home menu.
2. Select [Audio Out].
3. Select the setting you want.
AMP: HDMI audio signals from playback devices are only output to the speakers
connected to the receiver. Multi-channel sound can be played back as it is.
TV+AMP: The sound is output from the speaker of the TV and the speakers
connected to the receiver.
Note
Audio signals are not output from the speaker of the TV when [Audio Out] is set to [AMP].
When [TV+AMP] is selected, the sound quality of the playback device depends on the
sound quality of the TV, such as the number of channels and the sampling frequency, etc.
If the TV has stereo speakers, the sound output from the receiver is in the same stereo as
the TV, even when playing back multi-channel source.
When you connect the receiver to a video device (projector, etc.), sound may not be
output from the receiver. In this case, select [AMP].
[94] Adjusting Settings
Setting the zone 2 HDMI audio output of connected
devices (Zone2 Audio Out)
You can set the zone 2 HDMI audio signal output for playback devices connected to the
receiver via an HDMI connection.
1. Select [Setup] - [HDMI Setup] from the home menu.
2. Select [Zone2 Audio Out].
3. Select the setting you want.
AMP:
Recommended setting when a TV is connected directly to HDMI OUT B jack.
Sound is output from the speakers connected to the receiver.
Sound is not output from the TV speakers.
Zone2 TV + AMP:
HDMI Setup