Sony CDX-646 / CDX-646X Service Manual ▷ View online
9
RF BOARD
SLED MOTOR ASSY (251) (M101), OPTICAL PICK-UP (KSS-720A/Q-N)
3
two screws
(PS2
(PS2
×
4)
3
two screws
(PS2
(PS2
×
4)
2
Remove four solders
of the LSW board leads
and spindle motor leads (M102).
of the LSW board leads
and spindle motor leads (M102).
2
Remove two solders
of the sled motor leads
(M101).
of the sled motor leads
(M101).
1
OP flexible board (CN102).
4
RF board
1
two precision screws
(P2
(P2
×
3)
4
Turn shaft (feed) assy
in the direction
of the arrow,
then remove it.
in the direction
of the arrow,
then remove it.
2
sled motor assy (251)
(M101)
(M101)
OP flexible board
adhesive
sheet
sheet
3
optical pick-up
(KSS-720A/Q-N)
(KSS-720A/Q-N)
optical
pick-up
pick-up
Note: After connecting OP flexible board,
fix it with adhesive sheet
to optical pick-up.
to optical pick-up.
10
LSW BOARD, SPINDLE MOTOR (S) SUB ASSY (M102)
ELJ MOTOR ASSY (CHUCKING) (M103)
8
two precision screws
(P1.7
(P1.7
×
2.2)
7
3
spring (chucking)
6
retainer (disc)
4
precision screw
(P2
(P2
×
2.2)
5
bracket (CP)
9
Remove the spindle motor (S) sub assy (M102)
in the direction of the arrow.
in the direction of the arrow.
2
LSW board
1
precision screw
(P2
(P2
×
2.5)
2
two screws
(PTT2
(PTT2
×
4)
3
retainer (CHM)
4
ELJ motor
assy
(chucking)
(M103)
assy
(chucking)
(M103)
1
Remove two solders of
the chucking motor leads (M103).
the chucking motor leads (M103).
11
SECTION 3
MECHANISM DECK ASSEMBLY
Note:
Follow the assembly procedure in the numerical order given.
OPTICAL PICK-UP COMPLETE ASSY
GEAR (LOMINI)/(LOAD CAM) ASSY
chuck plate
1
Move the lever (LOCK 3A) in the direction of arrow
A
,
and return it a little in the direction of arrow
B
from the position where the chuck plate is moved
down to the lower limit.
down to the lower limit.
A
B
3
stop ring 2.0 (E type)
4
tension spring (DH)
2
optical pick-up complete assy
Note: Insert the shaft (A) first.
Note: Insert the shaft (A) first.
shaft (A)
gear (LOAD 2)
gear (LOMINI)
marking
Fig. A
Fig. A
chuck plate
2
Attach the gear (LOMINI) at the position
shown in Fig. A.
shown in Fig. A.
shaft (rotary prevention C)
1
Move the lever (LOCK 3A)
fully in the direction of arrow
fully in the direction of arrow
B
to move the chuck plate up.
B
4
stop ring 1.5 (E type)
3
Attach the gear (LOAD CAM) assy
with its facing inside.
with its facing inside.
slit
12
OPERATION CHECK
1
Confirm that the slider moves in the direction of arrow
C
to move down
the chuck plate if the gear (LOAD CAM) is rotated in the direction of arrow
A
or the chuck plate moves up and the slider moves in the direction of
arrow
D
if the gear is rotated in the direction of arrow
B
.
chuck plate
slider
gear (LOAD CAM) assy
A
B
C
D
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