Dam buzzing noise was really starting to get to me so i decided to open this up and see what made it work.
Step one: take out all the screws on the bottom
Step two: Take the screws out from the hindges.
Step Three: Tilt lid backwards till its almost in line with the laptop
Step Four: Above the Del button there is a small hole, insert flathead screwdriver or penknife and prise it open by pushing the knife/screwdriver upward.
Step Five: Repeate the exercise for all the holes above the keyboard.
Step Six: There are 2 latches on either side of the keyboard, next to the Del and the Esc, keep lifting the pannel and eventually it will pop off.
Step Seven: Remove screws holding the keyboard in place
Step Eight: Pull keyboard out and remove the cable.
Step Nine: Remove cable for top pannel.

Thats as far as i got and i couldn't see the Choke coil.
Keyboard <--- Yes that is my toe
Pannel
With no keyboard
Where i need to get to
Where the keyboard attaches to

Maan that looks cool! Well, good luck with the "investigation" and please keep us posted!!!!

heh. did it all without doing any cosmetic damage.

Did you get any further???

naa not yet. Will probably try again tonight.. Hope i can do it without removing the heatsink.
Heh It looks like to get to where i want i need to remove the Screen totaly from the bottom bit, which i'm not looking forward to. But it should be fairly easy now as a kind friend handed me the service manual.. Looks complicated with about a gazillion screws.
Fud just checked the service manual and i can't seem to find on the pictures of the mainboard anything that looks like the coils... Probably going to send this back to Acer for repair