Service Manual
64
Installation and Maintenance
ProcedureStep
3.Remove display box sub-assy
screw
display box sub-assy
big front panel 
sub-assy
air-in panel sub-assy
lter sub-assy
screw
4. Remove air-in panel sub-assy
5.Remove lter sub-assy
Remove  two  screws  on  the  air-in  panel 
sub-assy. 
Open  the  air-in  panel  along  the  arrow 
direction and then remove the air-in panel. 
Extend your  hands  into  grooves at  both 
sides, pull it outwards and then draw out 4 
lters.
Take out  the  connection  wire  of  display 
from the  wire  groove,  remove  the  fixing 
screws of display box sub-assy, and then 
remove the display box sub-assy.