infinity 42''

[WILLYAM1]

Hi to all.
problem is half of the pic is ok and half is black and somtime with lines from up to down of the screen.
is it the tcon ? or panel or main board.notice that the volltage in main board 3.3v and 1.2v from 2 regu are with strong ripple .
when lvds cabel is out the 3.3v become flat.
any idia??.
i will check all capi in main board and keep yopu guys posted.
willyam1.
send a phto letter.