FS-SD550R/FS-SD770R/FS-SD990R
1-11
Prior to performing the following procedure, remove 
the CD mechanism base assembly.
Disconnect the wires from connector CN181 on the 
main board.
Remove the two screws P  on the left side of the 
body. Move the fan motor assembly upward to 
remove it from the base chassis.
Remove the two screws Q  and the fan motor from 
the fan bracket.
1.
2.
3.
Removing the fan motor assembly 
(See Fig.25 and 26)
Prior to performing the following procedure, remove 
the front panel assembly.
Remove the seven screws S  attaching the front 
panel board inside the front panel assembly.
1.
Removing the front panel board 
(See Fig.28)
<Front panel assembly>
Prior to performing the following procedure, remove 
the CD mechanism base assembly and the door arm 
assembly.
To facilitate operation process, remove the gear 
motor assembly before performing the following 
procedure.
Disconnect the wires from connector CN102, CN106, 
CN191, CN192, CN193 and CN181 on the main 
board.
Remove the five screws R  attaching the main board 
with the cord stopper.
1.
2.
Removing the main board (See Fig.27)
Fig.25
Fig.26
Fig.27
Fig.28
Main bard
CN181
Fan motor
P
Fan motor
Fan bracket
Q
Gear motor assembly
Main board
CN193
CN191
CN106
CN181
CN102
CN192
R
R
R
R
Front panel board
S
S
S
S