my Xbox 360 Elite (Jasper from 2009) is usually connected to a "Sharp 26S7E-BK" via HDMI. Everything works fine with this combination.
My father has a "Metz Sirius 42 LED 200 twin R" with a PS3 connected to it.
Yesterday I tried to connect my Xbox with my father's TV (to try Kinect) and it didn't worked... Neither picture nor sound.
I used the same HDMI-cable, which was connected to my father's PS3 before, so the cable is intact.
Also tried the Y+RT trick to reset the picture-settings multiple times. Nothing.
Resetting the Xbox to factory settings didn't work either.
Now I'm a bit helpless since both TVs, both consoles and the HDMI cable are intact. My father's PS3 works with my TV. Just my Xbox doesn't seem to like my father's TV. :( Anyone able to help me out? :)