Cant get the video on my xbox 360 to work

try using a different tv or av cables. sometimes the plugs on tvs can become loose and that is why you will hear sound but not see a picture.

I would check your video connections. If it is dark behind your TV, use a flashlight and make sure all of the audio and video connections are correct. Make sure the connections are firmly in place for your XBox and TV for the audio/video cable. Also, be sure to be on the right video setting on your TV (Video 1, Video 2, etc.).

You may have a bad Audio / video port on The Xbox

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.

Needs to be serviced. Solder under the GPU has lost contact. We can fix this for you. We are a listed repair service on this site.
www.videogamerepairservice.com

Hi...
Pull out the video cable from both ends.
Re-attach and try again
Let me know

hey man i understand your problum the reason why your xbox wont show up on both of your tvs is because 1. your tvs are no good or 2.you dont have the right connection to play your xbox on the hd tvs

sounds like a problem with the video scaler chip or HANNA. Sometimes the heat from the motherboard can cause it to malfunction. Go to you local video game store that's independently owned and see if they can fix it. good luck

If you can still HEAR sound, but can't see. Check your Audio Video Cable.

It's the colorful one (red, white, yellow) (red, blue green, white, red)

Make sure the connections are secure into the back of the TV as well as the connection to the back of the Xbox 360.