Hi there I'm probably waaaaaayyy to late to help but it's a common problem with this tv.
Here's how to fix it..
1. Open the tv up and take back off this reveals the main circuit board and the power board...
2. Locate the power board usually small in size but has larger components.
3. Two capacitors are at fault here (upside down battery things)
4. Find capacitors C818 + C857 (located at the bottom and read 4700uf6.3v on the side these two need replaced)
5. Desolder old ones off if not budging then pull off *Be careful...
6. Buy new ones (dont have to match old ones but need same values I.e. 4700uf 6.3v)
7. Solder on making sure positive and negative go in correct holes.
8. Connect back up and try tv hopefully for you it works as it did with me.
Hope this helped :)
All in all the fix would cost you about £5 for 5 capacitors only need two. And solder kit so your looking no more than £20 :D
Niall Swinnerton, October 2013
