Harpreetz, it seems to be sort of hit or miss whether or not your asked question gets an answer on this forum. I asked the question below April 26th & got nary a reply. I thought it probably was an easy question for someone that was more familiar with Onkyo configuration than me.
Originally Posted by Tagaa
Well, seems that I am the odd man out as I have no major issues with my 737. But yesterday, 1 issue did come up.
I have run an HDMI cable from the 737, Sub Out connection, right next to the Main Out connection, for the TV in the bedroom. I get video on the bedroom TV but no audio. The Main out menu on the 737 is set to MAIN + SUB, bedroom TV speakers are set to on, mute is off. The TV volume indicator will move up to 100%, but still no audio.
I have looked in the detailed on line manual pages 54 to 60 regarding monitor out & main & sub connection, but nothing addresses audio. I have also looked in the troubleshooting section under audio, but no help there either.
Sorry Harpreetz, I have no information that will answer your question.
However, I was able to figure out my issue just today. For anyone else that may have a similar problem, I found the answer in section 7 of the menu, Hardware Setup, item 2 - HDMI. Turns out there is a selection - Audio TV Out (sub). All I had to do was turn it on.
For the life of me I can't understand why there would be a choice for Main and/or Sub HDMI OUT to turn audio off or on. Logic tells me if you are watching TV, you want audio. If not, all you have to do is MUTE the TV you are watching. Seems a lot simpler than going into the menu to choose that you want to mute an HDMI out connection.
Anyway, sorry that I can not help you with your issue.