This is Kevin Krause from Sony Support USA. I am sorry to hear about the problems that you are having with your KDL46EX600. The following is a link to Sony's esupport site for your model that gives some helpful troubleshooting tips on how to fix this issue. http://esupport.sony.com/US/p/model-home.pl?mdl=KDL46EX600&LOC=3#/howtoTab. If the link provided does not help you fix the issues that you are having, you can also call Sony's TV support line at 239-768-7547 for additional assistance.
Sony Support USA
I have a Sony Bravia - 46 inch LED (LCD)?--46EX600
I was using it fine yesterday with my HD cables. Then today neither my Television with Cable Comcast Box -- or Play station three would work -- seperate HD cables. I tried using different cables and problem persisted -- I reset my tv -- problem persisted -- i tried to update -- but my tv was already updated to newest---
So I tried the Red - White - Yellow audio/video cables --- now only the audio works...
So I tried my Wii with its own --- Red White Yellow -- it works fully operational sound and video.
I bought a new Red White yellow to see if it was just my current cable that was broken-- but It is still just simply audio that is working. while the Wii is still working fully functional Audio and Video ---
I also tried component green blue red cables -- they didnt work either.
and now as I have been typing and searching forums the TV just shut off on its own while Ive just been playing the audio with the Red White Yellow cables --- happen again?? To be continued...