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CH-X470RF
Removing the mechanism board / pickup
assembly (See Fig.23 to 26)
1.
Remove the three screws N fixing the mechanism
board on the back of the traverse mechanism.
2.
Disconnect the two feed motor wires (blue and
white), two spindle motor wires (red and black) and
two tray motor wires (brown and black) that are
soldered to the mechanism board.
3.
Short-circuit the grounding point on the mechanism
board. Move
the
disconnecting the wire from connector CN501. Solder
the short circuit round on the pickup assembly.
4.
Disconnect the wire from connector CN501 on the
mechanism board.
5.
Remove the screw O
assembly.
6.
Remove the screw P
retaining the feed slide shaft assembly and the
middle gear.
7.
Move the middle gear.
8.
Move the pickup assembly upward from the gear
section and remove it from the traverse chassis
assembly.
9.
Remove the two screws Q to remove the rack arm.
10.
Pull out the feed slide shaft assembly.
11.
Remove the screw R to remove the spring.
CAUTION:
To reattach the mechanism board, connect
the pickup flexible wire to connector CN501
on the mechanism board before unsoldering
the short circuit round. Subsequently, fix the
mechanism board using screws.
Rack arm
Q
1-10
mechanism
board
without
to remove the feed motor
to remove the shaft holder
R
Spring
Pull out
Fig. 26
Red and black
N
Mechanism board
Fig. 23
Pickup
Short circuit round
(Grounding point)
Fig. 24
Pickup assembly
Grounding point
Feed motor
Remove gears and
motors only when
required.
Fig. 25
CN501
Brown and black
N
Blue and white
Flexible wire
P
Shaft holder
Feed slide
shaft assembly
Middle gear
Chassis
O
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