Hitachi 55R7 Owner's Manual page 69

Discovering connected CEC devices
To discover CEC devices:
1. Make sure that your CEC-compatible components are connected to the TV with a suitable High Speed HDMI
Cable that supports HDMI ARC and CEC control.
2. Turn on each component and make sure all components are CEC enabled.
Tip: Some manufacturers have their own branded names for CEC functionality, so you might need to read the
product documentation to correctly identify the CEC features of the device.
3. On the TV's Home screen menu, navigate to Settings > System > Control other devices (CEC) and then select
Search for CEC devices. Press OK to repeat the discovery process, if necessary.
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  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 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 > Con-
trol 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 suit-
able 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
To enable or disable system audio control, in the Home screen menu, navigate to Settings > System > Control other de-
vices (CEC) and highlight System audio control. Press OK to enable or disable the feature.
Enabling 1-touch play
1-touch play enables a component to control which TV input is active. For example, pressing Play on your Blu-ray player
switches the TV to the Blu-ray input.
1-touch play is disabled by default. To enable 1-touch play, in the Home screen menu, navigate to Settings > System >
Control other devices (CEC) and highlight 1-touch play. Press OK to enable or disable the feature.
speakers" on page 55) and resumes local control of volume and mute state.
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