CEC

Why's My TV Volume Control Stuck?

Firestick

Episode 1764

Ron from Downey, CA

Ron has a 40" Samsung TV with an Amazon Firestick. He can't raise the volume up or down. It's just stuck where it is. Leo says that it's likely an issue with the TV, not the Firestick. Leo says that he thinks that there's an issue with the TV's CEC option, which allows him to control the TV with the Firestick remote. What he suggests is to disconnect the Firestick and see if the volume issue persists. If it doesn't, then he knows there's an issue with the Firestick. 

Why does my Roku device turn on my TV automatically?

Consumer Electronics Control Example

Episode 1710

Gloria from North Hollywood, CA

Gloria has a Roku stick plugged into her TV. But after she turns off the TV, the TV comes on automatically. What gives? Leo says that there's a feature called CEC, or consumer electronics control, which automatically if you nudge the remote and turns on the TV and sets the TV to the last thing you watched. You can turn off the feature in your Roku settings or your TV settings if you don't like it.

Why does HDMI drop out on my AV receiver?

Samsung 4K TV

Episode 1461

Tom from Pasadena, CA

Tom is having an issue with his Samsung 4K TV. The HDMI through his AV Receiver drops and he has to reacquire it. Leo says that it all comes down to his source. There's a feature called Consumer Electronics Control (CEC) that allows a streaming box to switch his AV Receiver automatically. It's annoying and happens to Leo all the time. So he should check his source in the AV Receiver. Then he should disable CEC everywhere. Samsung calls this feature "AnyNet Plus."

Why does enabling CEC on my HDTV prevent 7.1 Dolby Surround from working?

Vizio 70" HDTV

Episode 1454

Don from Arizona

Don has Vizio 70" HDTV running through a Sony 7.1 surround sound system, but when he enables the CEC functionality, it takes away the 7.1 Dolby surround. Leo says that CEC lets him turn on the Apple TV and lets it control the receiver. The problem is, results vary from TV to TV, so one TV may give him the center channel while the next doesn't. Leo advises turning off CEC and let the receiver handle it. It's more likely that the device isn't encoding it properly.

Why doesn't my TV switch to my laptop connection?

Episode 1241

Jeff from Ontario, CA

Jeff bought a Samsung Smart TV and it's connected to FIOS. Sometimes, though, they connect a laptop to it through HDMI. The TV doesn't like it and jumps back to HDMI 1, though. Leo says that is due to CEC or Consumer Electronics Control, which in theory will switch to the active device. In practice, it's sketchy at best. Some ports may be CEC and some may not be. And Samsung may not call it CEC. Jeff will also have to make sure that CEC is enabled. Another issue is a device going into sleep mode and not grabbing the CEC.