TC-P55S30 7 blinks problem

[Dagregsta7]

I saw a similar thread to the one I'm about to post but it was a different model number. Originally had 7 blinks, replaced sc board and i heard a loud pop and the set went into a 14 blink error. I then sent my original SC board in for repair as well as SD/SU boards. They fixed my SC board, no more shorts and they informed me that one of my two SU/SD boards were bad (can't remember which). So I then replaced the bad one before putting my fixed SC board into the set. I went to power on and i no longer get any blink code error but the set refuses to power on. I can hear a buzzing noise over some of the boards as if the tv is working, but i have no picture on the screen. I went from 7 blinks to 14 blinks to none. I'm getting frustrated and confused Any ideas of what might be wrong here guys? Thanks so much in advance!

-Greg

[tw2005]

Re: TC-P55S30 7 blinks problem

cardinal sin i'm afraid. Always check buffers before replacing the SC. It's tragic you found us after the fact, we would have kept you on the straight and narrow.

Who did the Sc repair?

Post a picture of how all the boards are hooked up especially the Sc,SD,SU

Did you notice if an onboard green LED was lit whilst you had the buzzing?