Denon AVR-1913 Owner's Manual page 11

Before connecting this unit to TV via HDMI connections
There are 2 methods to connect HDMI-compatible TV to this unit.
Use the connection method that suits your TV.
Does the TV to be connected to this unit support the ARC function?
Yes
Connecting this unit to a TV via
HDMI connections (vpage 9)
No
Connecting this unit to a TV via
HDMI connections (vpage 9)
+
Connecting a TV (vpage 13)
For audio connections, use a method other
than HDMI connections.
n About ARC (Audio Return Channel) function
This function plays TV audio on this unit by sending the TV audio signal to this unit via HDMI cable.
If a TV without the ARC function is connected via HDMI connections, video signals of the playback
device connected to this unit are transmitted to the TV, but this unit can not play back the audio from
the TV. If you want to enjoy surround audio for TV program, a separate audio cable connection is
required.
In contrast, if a TV with the ARC function is connected via HDMI connections, no audio cable connection
is required. Audio signals from the TV can be input to this unit through the HDMI cable between this
unit and the TV. This function allows you to enjoy surround playback on this unit for the TV.
When the ARC function is used, connect a device with a "Standard HDMI cable with Ethernet" or "High
Speed HDMI cable with Ethernet" for HDMI.
Refer to the owner's manual for your TV for details about TV connection and settings.
GConnection to a TV with the ARC functionH
Audio signals from the TV
IN
TV
GConnection to a TV without the ARC functionH
Audio signals from the TV
IN
Audio signals from the TV
Optical cable
OUT
8
Connecting an HDMI-compatible device
Audio from the TV
OUT
This unit Speakers
Audio from the TV
OUT
IN