how do i get the stupid heater control console apart?

[EstoMax]

my bulbs in the heater control console dont light up, at least the ones that light up the buttons to see which way the air is going.. so im taking it apart today and i cant figure out how to access the bulbs..heres a pic of the back:

basically i think the black thing (where the turning knob attaches to in front) needs to come off first cause it seems to block the green cicruit board from lifting up, and the brown one seems attached to it..

but i cant get anything to budge in thre, i took out all the screws i saw (2 in the back):help

TIA,Max