Toshiba SD-1300A, Service Manual

Page: 48 / 93

2-8
1-3-6. Gear B Assembly, Gear A and Rack Gear
Assembly
<Removal>
1. Remove one screw (3) and remove the gear B assembly
(1).
2. Remove the gear A (2).
3. Remove one screw (5) and remove the rack gear
assembly (4).
Fig. 2-1-18
<Mounting>
1. When mounting, perform the reverse order of the
removal.
2. Mount the gear B assembly (1) by pushing the pickup
head (5) to the disc motor side (arrow A direction) and
shifting the upper gear of the rack gear assembly (4) in
the arrow B direction. (Refer to Fig. 2-1-19.)
3. Fit the positioning holes on the upper gear and lower
gear of the gear B assembly (1) and mount on the
pickup mechanism assembly with the phase matched.
At this time, note that the phase of the gear B assem-
bly (1) and the gear A (2) shows the status in the Fig.
2-1-20.
Fig. 2-1-19
Note:
• Mount the gear B assembly (1) and the gear A (2) with
their gear teeth placed more than one tooth at least
inside the shaded portion.
Fig. 2-1-20
Pickup Head (5)
Positioning holes
Gear B assembly (1)
Gear A (2)
Rack gear assembly (4)
Pickup mechanism
assembly
B
A
Screw (5)
Rack gear
assembly (4)
Screw (3)
Gear B
assembly (1)
Gear A (2)
Pickup mechanism
assembly
Gear B assembly (1)
Rack gear assembly (4)
Gear A (2)
Within the position shown
by the shaded portion. Innermost position
of pickup head