Onkyo 646 4k pass through


Novice Member
Hello Everyone,

I have a Onkyo TX-NR 646 Amplifier which I am having an issue with passthorugh not working. I have a HDMI devices connected from the cabelTV to the reciver. Im not sure if I have setup the passthrough correctly. The amp is currently set as:

Setup - Hardware - HDMI -
HDMI Standby through: Auto (Eco)

When I update the amp configuration as above, the first time I put the amp to standby I get an image with voice to my t.v. after I turn the amp on again and turn it of, from the second time, I can't get an image or voice on my TV when the amp is on standby.

Can you let me know if the configuration above are correct. If not can you advise what I need to set please?

Thank you for the help in advance.

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