TCL 43S435 Instructions Manual

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127HDMI ® ARC reduces the number of cables needed and optionally lets you control thevolume 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 HDMIARC. Press OK to enable or disable the feature.Note:Enabling HDMI ARCalso enables System audio control. After enabling HDMI ARC,you can disable System audio controlif you prefer.Enable system audio controlSystem audio control enables the TV remote to change the volume and mute state ofan amplifier or sound bar connected through HDMI ® , and to display the externaldevice’s volume and mute status in the TV’s on-screen display.The TV automatically turns off its internal speakers and sends volume and mutecontrol 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 CECdiscoverability is enabled.• The CEC-compatible amplifier’s HDMI ® ARC connector is connected to the TV’sHDMI 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) andresumes local control of volume and mute state.To enable or disable system audio control, in the Home screen menu, navigate toSettings > System > Control other devices (CEC) and highlight System audio control. PressOK to enable or disable the feature.