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No audio from TV with receiver, HDMI, Onkyo

by geoffwolfe / November 10, 2007 2:31 AM PST

I have a Sharp LCD flat panel HDTV, Onkyo TX-SR605 receiver, Tivo Series 3, Playstation 3. I have HDMI cables from TV to receiver. I have no external speakers. I can't get the audio to work from the TV when I go through the receiver. Picture comes through fine. When I take the receiver out of the loop (Tivo and PS3 directly to TV via HDMI), everything works fine. I have tried all of the settings that make sense on the TV and receiver to get the TV audio to work. Anyone know what the deal is? Will the receiver only work with external speakers (which seems ridiculous)? Thanks.

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by johnnyblack87 / November 10, 2007 6:35 AM PST

Some lower end recievers, such as Onkyo, don't support HDCP, a copyright protection method. Basically, the source is sending an HDCP signal to the reciever, but the reciever, on routing, is not sending it back out. The television sees this, labels it copy protected and won't play. Sometimes, this will affect video, but almost all cases involve loss of audio. To fix: HDMI from source direct to TV, optical cable from source to reciever. You will lose video switchin capabilities, and the only fix that involves keeping those capabilities is buying a new reciever.

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This is a miss understanding
by gabereyes / November 10, 2007 3:14 PM PST
In reply to: Re:

most people think it is the reciever fault because the dvd player or cable box worked before you added the reciever.

But what really happens is for a source to display an image on a TV screen it only has to send the HDCP signal once at startup, but if you go through a reciever and/or HDMI switcher of anykind the source must send the HDCP signal all the time so this way you cant trick the HD copy protection system and record any part of the HD content.

So it is a source problem not a reciever problem, but if you get your PS3 updated it can fix a video problem, but audio may not be a software problem the reciever may not relay the audio to the TV, im not really sure if is meant to are not.

hope this helps

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Probably not HDCP problem
by geoffwolfe / November 11, 2007 2:49 AM PST

I tried hooking it up through my series 2 tivo as well and had the same problem -- just no audio no matter what. I can't believe the receiver will only work with external speakers. I'm basically screwed because I only put two hdmi cables through my wall and it is all sealed up now thinking I was covered with just hdmi, so basically the receiver is worthless to me now. I hope someone has some type of hack . . .

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did you set the hdmi audio out ?
by mattjen / November 11, 2007 3:07 AM PST

if you go to the setup menu, hardware setup, hdmi, and turn the audio out: on it should work hope this helps

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Got it to work!
by geoffwolfe / November 11, 2007 4:14 AM PST

Your audio-out advice got me thinking because it was set to "auto" and was grayed out. I played around with a few settings and when I turned off "Control", it ungrayed the field and I was able to set it to "on" and the sound then came through. Thanks for your help!

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