thanks for the answer
, actually , i did it yesterday the way you just described it.
I made a little tutorial for disassembling and fixing the buzzing sound :
(hope my english is good enough
The first and hardest part is to separate the black bezel from the white one, the problem is that they are clipped and glued with double sided tape. You need to separate them in order to access to the screws that attach the white bezel to the housing.
(I made the photos during reassembling).
It is easier to pull it out if you do it from the inner side of the bezel, but you need to be very careful to not harm the panel, there is glue only at the bottom, and a little on the sides, so once you've pried open the botom, you're done. (uncliping is easy)
Now you have this :
just unscrew the screws
and then unclip the white bezel (from the outside of the bezel)
Now these 2 screws are the only ones that attach the panel to the housing :
lift up a little the panel from the botom or right side and you'll see the internal and where to unplug the cables to completely separate the panel from the housing.
Now, for fixing the buzzing sound :
the panel pcb (where are the buzzing chokes) is behind this :
I did not take a photo, but it's nearly the same as the catleap one (photo from ScribbyDaGreat) :
edit : better with some paint works
We can see one, the component with "220" written upside-down, the other one is hidden under the little black square foam, cover them with epoxy, and it will shut them up. 100% success on my monitor which now is deadly silent.