Fix – HDMI CEC Stopped Working after Plugging in Cable Box

HDMI-CEC is a optional spec, so some equipment manufacturers don’t implement HDMI-CEC. HDMI-CEC signals are sent to Pin 13 as you can see in the diagram above. Plugging in non HDMI-CEC compliant device into your AV setup shouldn’t mess with your current HDMI-CEC setup but some equipment manufacturers who don’t adopt the optional HDMI-CEC spec […]