I have a Onkyo TX-SR806 HDMI output does not work anymore. Tried switching HDMI cables. My component video output works.

If you have warranty left I would encouage you to use it because you clearly have a problem, the cable has been changed along with connections checked. The only other thing is check your setting carefully on both units to ensure nothing was missed, "owner manuals would be handy"

You said you tried hooking the HDMI up directly from the TV to each component, and that worked. How is it usually hooked up - through some kind of switch? I'm not completely understanding your setup here.

Hello, where is the issue, audio or video? Your question has mixed messages. Thank you, Onkyo USA

Hi
The HDMI board needs to be serviced or changed.
nothing you can do.
Regards

Yes, check in your manual as to the Video out upconverting/downconverting set it to Component for the specific input you need. if you still have an issue, post a comment and I pull the manual on this unit and dig further. Hope this helps

Overview: I?m writing this report to provide insight into a common Okyo issue. When my Onkyo receiver began to malfunction my first response was to search the web for answers. What I fond was conflicting information. While all system issue may be unique, I hope this report shed some light on the subject. System Breakdown: Receiver: Onkyo TX-SR606 7.1 Channel Home Theater Receiver (Black) TV: Samsung - LN52A750 - 52" LCD TV - 1080p Broadcast: Comcast Component 1: XBOX 360 Elite Component 2: PS3 120GB Cables: Mediabridge Ultra Series - 10ft High Speed HDMI Cable - Version 1.3 Category 2 - 1080p - Blu-Ray - PS3 - W/ Nylon Sleeve Issue: When I first setup my Onkyo receiver it worked perfectly. Over time, my TV would display ?Searching for Signal?. After about a few minutes the receiver would detect the XBOX 360 and work fine. At first it was no big deal until the problem progressed. The receiver began to take longer and longer to detect the signal from the XBOX 360. Finally it would take up to 30 minutes or would not detect a signal at all. Finally I went through the process of changing out the HDMI cables and switching ports. This did not work, so I call Onkyo. They walked me through a reset process that did not work. Finally they recommended that I take it to an approved Onkyo repair shop. Lucky for me there is a repair shop in the suburbs of Chicago about an hours drive from my location. There are not many approved Onkyo repair shops. Most people would have to ship their receiver to another state. I took the receiver to the repair shop. They seem to have a nice little scam going on? Here is the scam.. They tell you there is a 3 to 4 week wait time (or longer) until they can even look at your receiver! BUT, if you want to put it on the ?Priority List? you can pay a $30 non refundable fee not covered by your warranty. Then you would only have to wait about a week. Tell me, who would not op for the priority list when your entire entertainment system is managed by the receiver?!?!? So I payed the $30. About 4 days later I get a call from the repairman. He says, all the HDMI ports work but they don?t have an XBOX 360 to hook it up to. So he can?t validate the problem. After arguing with him for an hour and listening to him cry about how crapy Onkyo receivers are and how hard the company is to work with, he agreed to do some research into the problem. I told him many times, simply look on the internet many people are having the same problem. Onkyo has to know something about this. Finally about a week later I get a call from the repair guy. He says he thinks he knows what the problem is. He has to order some capacitors and I could pay $45 for priority shipping. Umm wait one minute, I already paid $30 for priority service now you want me to pay more for shipping? No thank you! Over time I simply rewired my system to work without the receiver and to tell you the truth I almost forgot about the receiver. Finally I got a call from the repair shop about 2 months later saying I could come pick up my receiver. I talked to the repairman. He said the following? Solution: There are 4 capacitors that malfunction over time. It?s a common problem with Onkyo receivers. When the capacitors begin to malfunction you get intermittent signal response until it does not work. He could not explain why the cable still worked (everything was hooked up with HDMI cables). If you are experiencing this problem. I hope this helps save some time switching out cables and guessing why your system is not working. - Antious

You will have to keep it on for video to go trough. there is no way around.

Pressed and held cable/sat button on front of unit until "Attenuate" came up. Changed setting from 0 to 2

I had the same problem with my xbox 360. I was able to fix the problem by disabling the Display Discovery setting on the xbox.

press set up go option number 1 then go hdmi monitor and input yes. then press set up again