5.3 Unscrew the 3 screws, remove the duct mouth. 5.4 Unscrew the 8 screws on both sides of the inner shell and at the end of the duct, remove the duct.
5.5 Unscrew a screws, remove the light guide plate. 5.6 Unscrew the 3 screws, remove the light guide USB board
