my ps3 took a s**t yesterday. no wierd lights or anything, just no picture. tried it on 2 different tvs, with 2 different cords and the s**t still wont work.
zeus beat me to it.... but....
did you try re-setting it by holding the power button on the consloe itsself?
its in the manual i believe, how to reset the video output to default. i would try that first.