Lg 50pc3d no video

[crdz66]

HELLO FELLAS.

I HAVE A LG 50PC3D PLASMA TV WITH NO VIDEO.
THIS TV COME OVER WITH A FLICKERING VIDEO PROBLEMS, BUT, AS SOON WAS OPEN THE BACK PART, I NOTICE THAT THE POWER BOARD HAS 10 CAPACITORS BULGED.
SO, I REPLACE EVERYONE, BUT, THE FLICKERING VIDEO PROBLEM CONTINUE, SO I ORDER AND REPLACE TWO IC CHIPS ON Y-SUSTAIN BOARD AND NOW THE FLICKERING PROBLEM WAS RESULT, BUT, I ONLY HAVE A BACKLIGHT WITH NO VIDEO.
DO I MISS SOMETHING?

THANKS AN ADVANCE.

[lalease]

Re: Lg 50pc3d no video

Hello, Do you have correct voltage for your panel, VS/Va etc. or open fuses on Ysus or Zsus? Do you hane audio?

[koreybecker]

Re: Lg 50pc3d no video

hello,
im new to this forum so i cant create new posts yet so ill use this one... i have an lg 50pc3d that somebody gave me for free. power it up it has green light all seems well and i believe it has sound. but the screen looks snowy for a moment then it has like 5 blue lines that pan across the screen. i had 9 caps replaced on the PSU but still no result. same issue. any ideas? possible "hybrid" board i guess thats the zsus... please help anyone!!!

[koreybecker]

Re: Lg 50pc3d no video

and also with the back cover off on the ysus board theres a faint tick which the screen faintly flickers with... not a clue.

[dcapper]

Re: Lg 50pc3d no video

I have the same problem. The YSUS board is clicking. The power from the power supply is correct. Getting 196v and 60v. One of the STK type chips must be bad, although I metered them both and no shorts.