Question about Onkyo TX-SR803 Receiver

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Hum niose in my onkyo tx-sr804

When i conect any video cable from the receiver out to the tv, I hear a hum noise. I checked with hdmi,component and composite cable.

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Re: hum niose in my onkyo tx-sr804

Hi there, sounds like you have a ground loop happening there. Check out ground loops in google to get some tips. What you should try is use one wall plug for everything (with an adapter on it) and check that none of your other cables are damaged. try find new cables and put them in place of the old seemingly fine cables.

Posted on Oct 06, 2007

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Onkyo Reciever TX-SR806 Losing HDMI signal.

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.

Sep 10, 2009 | Onkyo TX-SR804 7.1 Channels Receiver

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Onkyo tx sr804 receiver turns on by itself

I have the same receiver and the way to fix is simple. in the main board of this unit there are 5 connectors and they slide into other components like Lego. the issue is the king of material they are made of it's cheap. if you reseat the mainboard it will fix it for a day or two, them it will start again. the easyway is to re seat the board and put a fan inside of the receiver between the transformer and the inside of the amp pointing down about 20 degrees connect the fan to a ajustible voltage adapter and connect it to the outlet in the back of the unit. so it comes on when you turn it on. this voltage adapter is cheap. the adapters people buy for phones and or MP3's at Radio shack or Best buy it goes from 1.5v to 12 volts/ this way you can control how loud the fan is in side the receiver. i find 4.5V does the trick. The connectors on this board start to loose contact with some of the pins when heated. the fan keeps it cool enouth to fix the issue. I fixed manny these ONKYO 804's this will fix it. you just have to do it. the main board is inder the HDMI board in a Vertical position running from one side to almost the Power supply. it has 2 screws also holding it in the inside middle back of the amp. Becarefull with these amps 75 V at 23amp's DC is no joje leave it off for a couple of hours to satart working on it. Good luck.

Aug 26, 2009 | Onkyo TX-SR804 7.1 Channels Receiver

1 Answer

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Hi there. for your receiver, the only time it can upconvert is when you go out as HDMI. In your current hookup (component out to tv) the signal from your cable (using a composite) will not be able to pass through the component cable. This means you either have to hook up your cable box using a component cable as well or add a composite cable (yellow) from monitor out of the receiver to the tv. Page 22 of the manual will show a diagram of the video signal flow. hope this helps.. ^_^

Dec 02, 2008 | Onkyo TX-SR606 Receiver

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re seat the HDMI board and SOUND processor board from the back it's the board sitting on the left side in a vertical possition and has a wide ribbon cable connected to the main panel in the front. take the board out and the HDMI one has to come out first. it's sit's on top and connect's to this board and the MAin board underneat . good luck.

Nov 21, 2008 | Onkyo TX-SR804 7.1 Channels Receiver

1 Answer

Rear speakers

Well,i will be the judge of that.Please tell me how do you have your system hook up?Be details...ex. TV connected to receiver with HDMI cable..DVD player connected to receiver...
What component that you are having trouble with the rear speakers?EX. dvd player?Directv box?Both?

Nov 16, 2008 | Onkyo TX-SR804 7.1 Channels Receiver

1 Answer

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Tell me in details how you connect your whole home theater system.Step by Step.Video and audio connection please.
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I suspect an open ground or bad cnnection in your hdmi cable to the amp from the sat.A hum is very indicative of that situation

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How good are the hdmi cables that you are using???

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I have a dvd player connected via component and I'm having the same problems. Manual via the On Screen Menu - Set the DVD input to "---" and the signal will be upconverted and sent via the HDMI out. This doesn't work for me so I might have other problems but if you haven't tried it, give it a shot.

Aug 16, 2007 | Onkyo TX-SR804 7.1 Channels Receiver

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