Originally Posted by ajeruns
Several days ago, I reported the issue with not getting audio/video via HDMI from Sony 300 Blu-Ray to AVM-50 to Nick. While waiting on a response from Nick, I decided to report issue to Sony also. Tried e mail and telephone. WHAT A JOKE THAT WAS. I was so disgusted, I returned the unit back and exchanged it for the new Panasonic BD10A even before Nick responded to me.
Yesterday I received a reply from Nick. He said Sony's official response to this issue is that AV Preamps are not supported.
Combining two pieces of info here, I think I may know now what's going on with this Sony 300 player.
I forget which version of software you are using, but if you are on a V1.12 version, and if the HDMI Repeater Yes/No selection is broken so that it always acts as Yes even if you have set No, and if Sony's flippant "official response" means what I think it means, then you'd get precisely the symptom you are reporting. To wit:
* I conjecture that the Sony 300 has a shoddy HDMI implementation which includes the infamous "HDCP Repeater Processing" bug. This bug has been ubiquitous in older cable TV boxes -- but of course that's no excuse for it to show up in a NEWLY released product. The bug is that the source device incorrectly implements that processing or doesn't even try to do it at all. HDMI Repeater Processing is the protocol by which the source inquires THROUGH the AVR as to whether the display on the other side is HDCP compliant. If the source doesn't do this, then the symptom will be that the source won't allow an HDMI connection to start up unless it is DIRECTLY connected to the TV.
* Anthem, however, has a clever workaround for this. The HDMI Repeater = NO setting causes the Anthem to lie to the source and tell the source that it is directly connected to a TV (a TV which happens to have unusually extensive ability to accept different styles of video and audio). Meanwhile the Anthem does the heavy lifting to make sure the OTHER side of the connection -- HDMI to the TV -- is properly copy protected, or that the TV is turned off so that the connection on that side is not active. The Anthem has to do this to maintain its own contractual obligations for HDCP compliance. So if you have HDMI Repeater = NO set, the Sony should believe it is directly connected to a TV and it should function properly despite Sony's washing of their hands.
[NOTE: HDMI Repeater = Yes is the Anthem factory default setting for each input -- probably due to demands from HDMI ORG that this be the default method. As far as I can tell, there's no good reason not to set HDMI Repeater = NO for each HDMI input source setup as one of the first things you do when setting up the Anthem.]
* But if the Anthem software V1.12 versions are broken so that HDMI Repeater acts as if it is set to Yes even when you have set it to No, then this workaround in the Anthem can't function properly.
If this is so, then it should be the case that Anthem users with HDMI TV's should not be able to listen to audio from an HDMI source when their TV is powered off (already confirmed by another poster) -- unless you have an unusual TV that keeps its HDMI input socket live and responsive even when the TV is in the Off/Standby mode. [EDITED TO ADD: It is possible for a source device to realize the TV is off, and thus the AVR is the end of the active part of the HDMI connection and audio should be allowed through, but many sources don't bother to do this either.]
It should also be the case that Anthem users with the older cable TV boxes that ALSO have this HDMI Repeater Processing bug should now be finding that they can't make any HDMI connections work from the cable box to the Anthem when running the Anthem V1.12 "test" software versions. Component video connections will always work however.