Why does my HDMI ARC not work?
William Smith
Published Mar 20, 2026
Why does my HDMI ARC not work?
Clear cache and clear data on your Android TV device. Perform a power reset on the TV and audio system: Reconnect the HDMI cable to the HDMI IN (ARC or eARC) input of the TV and the HDMI OUT (ARC or eARC) of the audio system. Connect the power cords of both the TV and audio system, and turn on both devices.
Why is my HDMI signal not working?
For this reason, the primary solution and the first thing you should always try is to simply unplug the HDMI cable from the source device and plug it back in. So, if you turned on the display before your HDMI source, try turning both off and then powering them on in the opposite order.
How do I use HDMI passthrough?
How does HDMI pass through feature work?
- Press the HOME button on the supplied remote control.
- Select Settings.
- Select HDMI Settings.
- Select Pass Through.
- Select Auto.
How to fix Denon AVR 791 HDMI port?
“I’m a Denon AVR 791, nice to make your acquaintance.” Turn everything off. Disconnect the HDMI. Unplug everything from the wall. (must be done in this order) In about an hour, re-connect all the HDMI FIRST. Plug the receiver into the wall…then plug everything else back into the wall.
What should I do if my HDMI port is not working?
In about an hour, re-connect all the HDMI FIRST. Plug the receiver into the wall…then plug everything else back into the wall. Turn on the receiver first…then you can turn everything back on. That will re-establish the handshake. *by the way, BD players are most notorious for wonky handshake.
What are the issues with my HDMI cable?
0Find issues with the AV Receiver’s hardware (Self diagnostics) 0Find issues with external equipment and settings. 0Find issues with HDMI cable capabilities and connection. 0Restrict EDID or HDCP on the AV receiver to resolve issues caused by incompatibility with the AV receiver.
How to do HDMI diagnostics on a TV?
0No audio from the AV Receiver (Speaker) 0Intermittent picture or artifact (video snow, dots on the top of the picture) 0Intermittent audio or noise. 2How to use. 0If the issues mentioned in 1 occur, press the button on the front panel of the AV receiver to enter HDMI DIAGNOSTICS mode.
How do you turn on HDMI on Denon arc?
Note: To use ARC you must turn on HDMI control in the menu of the receiver, as well as the TV. The TV must also have the correct settings to enable audio to be output to the receiver. To turn on HDMI control in the receiver press the SETUP button on the remote, select VIDEO, then HDMI Setup.
What should I do if my Denon arc is not working?
I reset the Denon and reset the TV. It didn’t help. 2. Procedure using a HDMI cable Connect the HDMI cable from the ARC HDMI input connector on your TV to the ARC HDMI out (Monitor) connector on your AV receiver. Select “TV AUDIO” from the input source select buttons on the remote control or the receiver.
“I’m a Denon AVR 791, nice to make your acquaintance.” Turn everything off. Disconnect the HDMI. Unplug everything from the wall. (must be done in this order) In about an hour, re-connect all the HDMI FIRST. Plug the receiver into the wall…then plug everything else back into the wall.
What is the HDMI port on Denon av7704?
On the AV7704 the only HDMI port used is port 3 that is labeled Blu-Ray by default. This isn’t a complex system. 3) Hitting CBL/SAT on the AV7704 remote returns from the OPPO to the signal originating from the TV with ARC used for audio.
