Yamaha HTR-3072 Quick Start Manual page 21

Problem
No sound is coming from a
specific speaker.
No sound is coming from the
subwoofer.
No video.
No video from the playback device
connected to the unit with HDMI.
Cause
The playback source does not contain a signal for the
channel.
The currently selected sound program/decoder does not
use the speaker.
Audio output of the speaker is disabled.
The playback source does not contain LFE or low-
frequency signals.
Subwoofer output is disabled.
Another input source is selected on the unit.
Another input source is selected on the TV.
The input video signal (resolution) is not supported by the
unit.
The TV does not support HDCP (High-bandwidth Digital
Content Protection).
Remedy
Use "Signal Info." in the "Option" menu (p. 18) to check the audio signal. For
details, see "Checking information about the video/audio signals" in the
Owner's Manual.
Use "Test Tone" in the "Setup" menu (p. 19) to check the speaker output. For
details, see "Outputting test tones" in the Owner's Manual.
Perform YPAO (p. 13).
Use "Configuration" in the "Setup" menu to change the speaker settings. For
details, see "Configuring the speaker settings" in the Owner's Manual.
Enable the Extra Bass function using the BASS key (p. 15).
Perform YPAO (p. 13).
Set "Subwoofer" in the "Setup" menu to "Use" (p. 19). For details, see "Setting
the use of a subwoofer" in the Owner's Manual.
Select an appropriate input source with the input selection keys.
Switch the TV input to display the video from the unit.
To check the information about the current video signal (resolution), see
"Checking information about the video/audio signals" in the Owner's Manual.
For information about video signals supported by the unit, see "HDMI signal
compatibility" in the Owner's Manual.
Refer to the instruction manuals for the TV and check the TV's specifications.
If you want to play back contents that require HDCP 2.2-compatible devices,
both the TV and playback device must support HDCP 2.2.
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En