LG Plasma TV Bad Y Buffer Replacement

[Bad_Boards]

Background:
I have a LG 50PA550 Plasma TV which stopped displaying a picture. The sound works just fine. The outputs of the power supply board were within 2% of the expected values. After removing the Y top buffer the bottom half of the TV started working.
Question:
Do I have to order both a Y-Buffer and Y-Sustain board to fix this?
Could I somehow check the Y-Sustain board to see if there was any damage done to it?

[Biruslapio]

Re: LG Plasma TV Bad Y Buffer Replacement

If the bottom half of the panel is displaying correctly, for example: not dim, not grainy or other common Z/Y boards partial failure, it should be fine, some LG plasmas require upper buffer boards to display any picture on the bottom half.

[ajshoe]

Re: LG Plasma TV Bad Y Buffer Replacement

you need a new top buffer board.