Xbox 360-no audio output

Have you tried connecting the RCA outputs on the cable box direct to your TV"s RCA's inputs?

Hi,

Sorry to hear about your trouble. You elimanted the cable as a potential problem so that is good. You are left with a couple of options that might be causing the problem.

-Bad HDMI port on the XBOX
-Bad HDMI port on the TV
-Incorrect TV settings

On the TV, you want to make sure you set it to the HDMI input when you are using HDMI, but I assume you already do this and most newer TV's will auto adjust to HDMI when the xbox is turned on. Always good to double check.

The easiest way to narrow the problem down further would be to test the hdmi connection with another TV. If the xbox works on another TV then you narrowed the problem down to the TV and will need to repair the TV either through warranty support, by yourself or via a TV repair man. If the xbox has the same trouble on a different TV then you know the problem is with the XBOX and you can contact Microsoft Xbox support for repairs.

Let me know if you have any questions.

Regards,
G33k

Hook your Xbox to tv via HDMI, then hook TV to reciever through digital optical or composite cables. If you try to get your picture through receiver first, you may get picture and sound but, sound may be delayed and picture might not be the best. Bettter to run through tv first then provide sound to receiver.

Connect audio out cables (L and R) from HDTV to far left audio input at back of hts 3555. Then connect HDMI output from XBOX360 to HDMI input slot on TV. Setup XBOX 360 for audio through HDMI turn TV off and then on and all should be good. It worked for me.

You need to Connect via, the Component Video, the xables are Blue, Red, Green, ALL Video, and go color to color, from, Xbox to TV, and you Select EXTERNAL INPUT, on TV. OR You must use the Composite, Video, which is Yellow, for Video, again, cables go color to color. The Audio, as you have discovered, is Red & White. Now, if using HDMI, you do not usually need the Red 7 White audio, as it's all in the one signal, though the HDMI. Again, you select the relevant, INPUT On the TV, And also select the output on the Xbox, and you should be all OK.

Connect Xbox via HDMI to DTV/IN, Connect HDMI from out to Sony Bavia's HDMI/IN. Connect TV's Optical out to amps DTV/Optical in.

2X HDMI cables and one Optical are required.

Enjoy great sound :)

OH: choose the DTV input then stereo and then dolby 5.1 etc .. cheers

Is the problem that you're using a single HDMI cable to connect your Xbox to your TV? If so, this Turtle Beach article should help... ________________________________________
HDMI and Connecting Ear Force Xbox Headphones
The current Microsoft Xbox 360 series of gaming consoles allow the use of HDMI cables for simpler hookup to home theater systems and Hi-Definition televisions (HDTV).
The Xbox 360 Elite (the black one) comes with two additional cables, an HDMI cable and a separate AUDIO cable that provides a pair of RCA jacks (red and white) and an optical digital audio output (S/PDIF Out). With this cable package, you can easily connect any of our X-series headsets and an HDMI-connected television at the same time.
This Xbox 360 HDMI Cable package is available as an extra-cost option from Microsoft: http://www.xbox.com/en-US/hardware/x/xbox360hdmiavcable/
Here's a more in-depth explanation of the Xbox 360 HDMI Cable and how it works: http://support.microsoft.com/kb/937899?sd=xbox
[NOTE 1:] The standard Xbox models do not come equipped with this cable set. The HD cable they have obscures the HDMI connector, so that the two sockets cannot be used at the same time. If you only have this stock HD connector (component video, composite video, stereo analog audio and optical digital audio connectors), then you will not be able to use the HDMI connector at the same time.
In order to use both sockets at the same time (HDMI and A/V) you'll need to purchase the Xbox 360 HDMI Cable package described above.
[NOTE 2:] The current Xbox 360 Elite Holiday Edition (Fall 2009) does not come with the HDMI Cable set.
___________________________________________________________________
Some companies make aftermarket HDMI cables for use with the Xbox 360, but these may not provide the dual RCA jacks that carry the 2- channel analog audio necessary for hookup of the anlog-only Ear Force X-series headsets. If this is what you have, you may need to find another way to connect your Ear Force X-series headset.
The TOSLINK digitally-connected X-series headsets can be always be connected using optical digital "Toslink" connections (and that's the best way to use them!).
___________________________________________________________________
The oldest white-and-gray Xbox 360 models DO NOT have an HDMI port. With this particular (obsolete) model, you cannot use HDMI connections, but you can use any of our X-series headsets.
Current Xbox 360 models all have separate HDMI and A/V ports ("sockets") on their back panels.
___________________________________________________________________
Here are some suggestions for alternative connection schemes:
XBOX 360 AUDIO PLAYS THROUGH TELEVISION SET:
For X4 and X41: Your best bet would be to connect the Xbox optical digital audio out to the X4 transmitter's optical digital input. Then connect the X4 optical digital output to the optical digital audio input on your HDTV or home theater amplifier.
[NOTE:] Some HDTV systems have an optical digital audio output that will not transmit Dolby Digital/DTS encoded digital audio, only stereo PCM audio will be passed. In this case, you must connect as above.
For X2, X3 and X31: You can use the Headphones jack or the Audio Out jacks on your TV to connect to the Audio In jack on the Transmitter.
For X1 and X11: You can use the Headphones jack or the Audio Out jacks on your TV (if available) to connect to the headset's analog Audio Input.

NOTE: Please make sure your TV has Audio Out jacks. Some TV's only have Audio In jacks.
Audio In jacks only accept incoming audio signal; they do not send audio signal out. If no audio signal is being sent to the headset, no sound will play from the headset.
___________________________________________________________________
You may need to purchase a suitable adapter cable in order to connect the TV audio output(s) to the Ear Force X-series headset's transmitter or Audio Input plug.
- Connect the HDMI cable so that the Xbox 360 plays its audio through the TV.
- For X1, adjust the Dashboard > Settings > System > Voice in the Xbox 360 so that the talkback and game sounds are played together (Play Through Speakers). - For X3, X31, X4 and X41, you should set this to Play Through Headset.
__________________________________________________________________
XBOX 360 AUDIO PLAYS THROUGH HOME THEATER RECEIVER (except X4 and X41): This is exactly the same as the above, except that you will use the receiver's Headphones output jack to connect to the Audio In on the Ear Force Xbox-compatible headset's Transmitter (X2, X3, X31) or the green Audio Input plug (X1).
- You may need to obtain a shielded audio cable with 1/4" stereo phone plug to 1/8" stereo mini-phone plug ends. The 1/4" phone plug goes to the receiver's Headphones jack, while the 1/8" mini-phone plug goes to the Audio In on the Ear Force Transmit- ter (X2, X3, X31) or Audio Input plug (X1).
- Adjust the Dashboard > Personal Settings in the Xbox 360 so that the talkback and game sounds are played together (Play Through Both). For X3 and X31, you may also set this to Play Through Headset.
___________________________________________________________________

I recently got the same receiver and had the same problem. Here's what I was told - and it worked for me:

Even though HDMI cables carry audio and video, for whatever reason this reciever won't accept audio through hdmi. Apparently only much more expensive recievers carry audio through hdmi. What you have to do is run optical audio cables from your xbox, cable box, dvd player or other video device to the optical inputs on the back of the reciver. Then you customize the scene buttons to match your video and audio inputs.

You can get these optical cables pretty cheap on line or even at target. Don't get ripped off by Best Buy for these cables. I love best buy, but they rip off on cables!

This receiver is great - once I got it all figured out and running right I've loved it! Hope everything works out for you!

There are a couple of options you can use.

Are your DVD and cable actually going to the Onkyo first and then to the TV? I am assuming it is, if you listen to the Onkyo when watching a DVD or cable.

The Onkyo receiver you have has 2 hdmi inputs and 1 hdmi output.

Does your Xbox360 have an hdmi output and that is what you want to connect to the Onkyo? Some do and some don't.

If your Xbox has a hdmi output and you are already using the 2 hdmi inputs on the Onkyo, you can not connect the Xbox using the hdmi, you have no more hdmi to connect to, so you must go thru one of the other inputs of the Onkyo.

The hdmi has the video and audio together, the other video options do not. you would need to run seperate audio cables as well.
Your Xbox should have a composite video (yellow RCA jack) output or a component video (1 red, 1 blue, 1 green RCA jack) output.

When you connect the Xbox thru, lets say the composite video of the Onkyo , you will also need to connect the audio from the Xbox to the Onkyo on the same input. It should be right next to the yellow RCA jack or right under it. They are 2 RCA jacks, one red and one white.

You will then need to connect the composite output of the Onkyo to the composite input of the TV.

When connecting like this, you will also need to select the composite input on your TV with your remote for your TV. Your TV should have an input button that lets you go thru all the different inputs to it.

you can also use the component video from the Xbox if it has that. But you must also run the audio to the Onkyo as well to the corresponding audio inputs of the component video input on the Onkyo.

This may sound a little confusing, but remember that the hdmi has the audio and video in one cable, the other video options do not, so you must run additional cables for the audio to the Onkyo from the Xbox.

Also remember whichever video you use from the Xbox to the Onkyo, you must also run that same video from the Onkyo to the TV and then switch the TV over to that input when you want to watch the Xbox on the TV

HDMI carrys no sound you still need to have the audio cables from the component plugged into the tv. If this doesnt do the trick you should call MS or check your TV's settings maybe there is a special function when using that resolution. Hope this helps.