That may have given you a bit more info. It has been my experience that component connection may require setup for the tv/dvd or both; but composite signal (AV) doesn't require any setup. Could it be that it is defective (just think out loud). How about the s-video?Sorry I can't be more helpful.
I have purchased a used a 65" Mitsubishi WS-65869 rear-projection HDTV. I hooked up my non-HD cable box directly to the TV via a coaxial cable. Signal is OK, everything works fine.
When I hook up my DVD player using analog audio and video cables, the TV reports that there is no signal from the selected input. (On this TV you name your device and then assign the input port when the signal is coming in.)
Then, I tried to hook up another DVD player that has component video output. This time the TV did not report that there was no signal, but there was no sound and the TV showed a slightly tilted greyish pattern moving from up and down.
Then, I tried to conect an XBox via analog cables. Again, no signal.
Has anybody encountered a similar phenomenon? Any troubleshooting ideas?