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When finished, the TV displays a list of CEC devices that are connected to each HDMI
®
input, as well as
any devices that had previously been connected. The TV remembers the names of multiple CEC devices
even when they are no longer connected. If the list is longer than the allowed space, press
Þ
to see a
complete list in a scrollable window.
Enabling HDMI
®
ARC
HDMI
®
ARC is the audio return channel that is available on one of the TV’s HDMI
®
ports. The audio return
channel enables you to send a Dolby Digital audio signal back to a home theater receiver that is also
sending an audio and video signal into the TV. Using HDMI
®
ARC reduces the number of cables needed
and optionally lets you control the volume and mute state of the receiver by enabling system audio
control.
HDMI
®
ARC is disabled by default. To enable HDMI
®
ARC, in the
Home
screen menu, navigate to
Settings
> System > Control other devices (CEC)
, and then highlight
HDMI ARC
. Press
OK
to enable or disable the
feature.
Note
: Enabling
HDMI ARC
also enables
System audio control
. After enabling
HDMI ARC
, you can
disable
System audio control
if you prefer.
Enabling system audio control
System audio control enables the TV remote control to change the volume and mute state of an
amplifier or sound bar connected through HDMI
®
, and to display the external device’s volume and mute
status in the TV’s on-‐screen display.
The TV automatically turns off its internal speakers and sends volume and mute control signals to an
external amplifier when all of the following are true:
•
System audio control
is enabled on the TV.
•
The TV is connected to a CEC-‐compatible amplifier, it is powered on, and CEC discoverability is
enabled.
•
The CEC-‐compatible amplifier’s HDMI
®
ARC connector is connected to the TV’s HDMI ARC
connector with a suitable HDMI
®
cable.
When the CEC-‐compatible amplifier is off, the TV automatically turns on its speakers (unless you have
turned them off as described in “
Turning off the speakers
” on page
67
) and resumes local control of
volume and mute state.
To enable or disable system audio control, in the
Home
screen menu, navigate to
Settings > System >
Control other devices (CEC)
and highlight
System audio control
. Press
OK
to enable or disable the
feature.