To enable HDMI CEC for a soundbar, turn on the TV manufacturer’s HDMI-control option, enable control or TV-remote functions on the soundbar, and connect the labeled ARC/eARC ports. CEC allows compatible devices to exchange power, volume, and input commands, but brand names and supported commands vary.

Find the CEC name

Samsung calls it Anynet+, LG uses SIMPLINK, Sony uses BRAVIA Sync, Panasonic uses VIERA Link, and other manufacturers may say HDMI Control, Device Link, or CEC. The setting is usually under General, Connection, External Devices, Inputs, or System.

Enable CEC step by step

  1. Connect TV ARC/eARC to the soundbar HDMI OUT (TV ARC/eARC).
  2. Turn on HDMI-CEC in the TV menu.
  3. Enable HDMI Control, Control for HDMI, or TV Remote on the soundbar if offered.
  4. Choose Receiver, Audio System, or HDMI ARC as the TV output.
  5. Restart both products and test power, mute, and volume with the TV remote.
One remote controlling a television and soundbar through HDMI-CEC
CEC carries control commands over HDMI while ARC or eARC carries TV audio to the soundbar.

When one-remote control fails

Disconnect other HDMI devices and test the TV and soundbar alone. A cable box, switch, or older HDMI device can create a CEC conflict. Power everything off, unplug for two minutes, reconnect the soundbar first, and add other devices one at a time. CEC is not perfectly standardized, so one function may work even when another does not.

Helpful next steps

See our HDMI ARC connection guide and ARC troubleshooting guide. The Soundbar & Audio Gadget Wiz can walk through the symptoms. For a confirmed cable fault, compare a certified High Speed HDMI cable or a certified Ultra High Speed HDMI cable.

Frequently asked questions

Does ARC require CEC?

Many products rely on CEC to discover and control the ARC audio system, so enabling it is an important setup step.

Why does volume work but power does not?

The devices may support different CEC commands or have separate power-sync settings.

Can CEC control every connected device?

No. Compatibility varies, and some devices implement only part of the CEC command set.

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