profilo 42''-(42v7)

[WILLYAM1]

Hi to all.
problem is blank screen and green led is lighting.
blowing fuse in y sus and in z sus.
 i replace it with 3 board  set now there is a pic but with horizental lines interference.
any idea??.
could it be a  boards thatare not suiteble?.
willyam1.
ill send a pic letter