Sound with no picture

I've had this happen to me a few times. Either cycle through your sources (until you get to the one for your xbox) or turn the TV off and turn it on again after 10-15 seconds.

This is how to fix it. So here is how you do it. First i took off my hard drive on the 360. Then i pluged it to the tv not with HDTV (use the red, yellow and white make sure it is on tv not HDTV) i only say this because i didn't use the HDTV setting to fix it. then i pluged it into the wall with the 360 laying down not up and down and turned it on. (no picture but sound) with the 360 on i took 1 towel folded it long ways and wraped it around my 360 from back to front (make sure you cover the fans in the back to make it over heat.) leave your 360 on until it red rings (you can hear the 360 quit down. it takes about 15-30 mins depending on how fast it over heats. once this happens unwrap the 360 and turn it off wait 5 secs and power it back on and there you go you should have picture and sound again. i hope this will help u....pls rate...cheers...

What kind of television is it?
What type of connection are u using?
Have you tried the XBox with another set?
to make sure its not the xBox.

you can try getting new lead cables, or send your xbox on if you have the receipt for it.

it might bea problem with your actual video cord that plugs into the tv.... umm my xbox has a lot of issues too but ive never had this. id suggest you let it say off for a while and try somebody elses cords that connect the xbox to the tv to see if its an issue with your xbox or if its with your cords. ill also suggest you call microsoft and they can troubleshoot...

please rate my solution :) thanks

Since your sound works, you know the xbox is booting properly.  Check two things: 1) try another television to make sure it's not the tv.  2) try another cable(from a friend?) to see if the cable is bad.
**Also, if the video settings were saved on an unsupported setting, it could cause the screen to not show video.  If you try these 2 things and you think someone might have saved bad settings, I recall a button combination you can use to reset certain things, and I try to help if it comes to that.

It's possible that your Xbox is sending out a picture that's higher resolution than your TV can display. Try reducing the resolution of the Xbox video output.

First take off my hard drive on the 360. Then plug it to the tv not with HDTV (use the red, yellow and white make sure it is on tv not HDTV) because it will not work for HDTV setting . then plugit into the wall with the 360 laying down not up and down and turned it on. (no picture but sound) with the 360 on take 1 towel fold it long ways and wraped it around 360 from back to front (make sure you cover the fans in the back to make it over heat.) leave your 360 on until it red rings (you can hear the 360 quit down. it takes about 15-30 mins depending on how fast it over heats. once this happens unwrap the 360 and turn it off wait 5 secs and power it back on and there you go you should have picture and sound again. if you still have problem you can now can send it to get repaired since there is a 3 year warrenty for red ringed 360's.

i would help you but i have the same thing my did that to but my xbox show me colors then it whent to black screen and says to call xbox/support

I would try some of these troubleshooting steps;

1. Make sure that the AV cables are 100% secure.
2. Try an new AV cable.
3. Try your console on a different TV.
4. Call xbox customer support at 18004MYXBOX