Your TV has several features that make it an ideal TV for a home theater. But you might not notice them because they remain in the background until you decide to use them.
When you use your TV with a sound bar or an external amplifier and speakers, you’ll probably want to turn off the internal TV speakers.
To turn off your TV’s built-in speakers, in the Home screen menu, navigate to Settings > Audio > TV speakers and change the setting.
|Your TV’s internal speakers can be enabled and disabled automatically as needed by system audio control, as described in Using your TV in a home theater. The internal speakers are also turned off when you use the headphone jack.|
Your TV has two audio modes, accessed by navigating in the Home screen menu to Settings>Audio>Audio mode:
You can connect your TV to an external amplifier, receiver, or sound bar by using either of these two connections:
|Dolby Digital Plus format is not available through the OPTICAL DIGITAL AUDIO OUT output. This format is only available through the HDMI1 (ARC) connection.|
After making the required HDMI ARC or digital optical audio connection, go to Settings > Audio > S/PDIF and ARC option and select the audio format to use.
|In most cases, Auto detect is the best option. Other settings can result in no sound when the content you are viewing does not contain the audio stream type you selected.|
Consumer Electronics Control (CEC) enables your TV and other CEC-compatible home entertainment components to control one other in various ways. First, the CEC-compatible devices must “discover” one another and report their capabilities. After this, one device can control another according to the features you enable. For example, playing a disc on a Blu-ray player could switch your TV to the Blu-ray player's input. Or, powering off your TV could also power off the Blu-ray player and the home theater receiver.
|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.|
When finished, your TV displays a list of CEC devices that are connected to each HDMI input, as well as any devices that had previously been connected. Your 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.
HDMI1 (ARC) is the audio return channel that is available on one of your 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 your 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.
|Enabling HDMI ARC also enables System audio control. After enabling HDMI ARC, you can disable System audio control if you prefer.|
System audio control enables your 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 your TV’s on-screen display.
Your 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:
When the CEC-compatible amplifier is off, your TV automatically turns on its speakers (unless you have turned them off as described in Turning off the speakers) 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.
1-touch play enables a component to control which TV input is active. For example, pressing Play on your Blu-ray player switches your 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.
The system standby feature causes other components to power off when you power off your TV. Depending on the CEC System Standby implementation, it also might enable connected components to power off your TV when you power off the component.
System standby is disabled by default. To enable system standby, in the Home screen menu, navigate to Settings > System > Control other devices (CEC) and highlight System standby. Press OK to enable or disable the feature.
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Insignia 40"/48" 1080p, 60Hz, LED Roku TV | NS-40DR420NA16/NS-48DR420NA16
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