CEC (Consumer Electronics Control) is a feature within the HDMI standard that allows multiple devices connected via HDMI to communicate with each other and be controlled via one remote control. This provides users with an easy way to control multiple devices without separate controllers or complicated settings.
Here's an overview of how CEC works and what it entails:
Sync devices: CEC allows devices, such as a TV, soundbar, and Blu-ray player, to work together. For example, when you turn on the TV, the soundbar can turn on automatically.
Use one remote: With CEC, you can use your TV remote to control other connected devices, such as pausing a movie on your Blu-ray player.
Automatic functions:
Standby sync: If you turn off the TV, other connected devices will also automatically go into standby mode.
Input Switching: When you activate a device, the TV automatically switches to the correct HDMI input.
How does CEC work?
CEC uses a single control line (pin 13 in the HDMI cable) to send simple commands between devices. If CEC is not working, it may be that the connected devices do not support CEC or that pin 13 in the HDMI cable is not connected.
Which HDMI cables support CEC?
All HDMI cables from version 1.4 (High Speed HDMI) support CEC, so most modern HDMI cables have CEC support, as long as the device is compatible.
Conditions and restrictions:
Compatibility: Not all devices fully support CEC, or manufacturers use proprietary brand names (such as Samsung's Anynet+, LG's SimpLink, or Sony's Bravia Sync).
Enable CEC: Often you have to manually activate CEC in the settings of each device.
Limited number of functions: CEC usually works for basic commands. Advanced features (such as access to specific settings) may still require the original remote control.