Hi 'in your heart',

I have a similar problem! I posted this on the PS4 thread but no one answered but i guess it is because everyone was so happy getting their PS4s and my comment was spoiling the mood : P

Anyway, have you tried connecting your PS4 to another TV? I brought my PS4 to my friend's house and it worked flawlessly. Plus i also connected my Vita (connection made before) to the PS4 and it was okay. So my PS4 works. Just that HDMI is somehow not transferring the data - could be handshake problem.

The weird thing is that because of this, my PS3 is facing the same thing. No signal as well. My ASTRO cannot receive any HDD channels (says Copyright protection failed) but my apple TV no issues.

One thing to note. My PS4 was working out of the box. All these only started after update 1.52. The only early problem was that my screen flickers from time to time - which i ignored.

Sigh. Anyway, i have called Pioneer (personal friend) who came by today and took back my PS3 to test at his shop. He didnt want to take the PS4 cos he doesnt know how it works LOL.

Anyway, good luck to you and will let you know if i get to solve my problem.

Regards,
Gnooh