Guide Rail T2, Capstan Motor - Sony DCR-TRV725E Service Manual

4-4. Guide Rail T2, Capstan Motor

1. Removal procedure
1) Remove the capstan flexible board and flexible wiring board
(FP-300) 1 from the holders X, Y and Z in the directions
of the arrows A, B and C.
Remove the screw (M1.4 × 2.5) 2.
2)
3) Remove the claw of the guide rail T2 3 from the hole on the
drum base assembly in the direction of the arrow D.
4) Remove the six solderings 4.
5) Remove the FP-228 flexible wiring board (2P) (DEW sensor)
5.
Remove the two screws (camera pan2 main M1.4 × 1.6) 6
6)
and the screw (SANG camera pan2 main M1.4 × 4.5) 7.
7) Remove the capstan motor 8.
8) Remove the capstan spring 9 (be careful not to drop the capstan
spring) and timing belt 0.
Attachment position of
FP-228 flexible board
Approx.0.5mm
1 FP-300 flexible board,
Capstan flexible board
Remove the flexible board in the
direction of the arrow A B C .
FP-300 flexible board
B
C
Z
Y
Capstan flexible board
3 Guide rail (T2)
6 Two screws
(camera pan 2 main
M1.4 × 1.6)
7 Screw
(SANG camera pan
2 main M1.4 × 4.5)
5 FP-228 flexible
board (2P)
(DEW sensor)
8 Capstan motor
9 Capstan spring
X
A
2. Attachment procedure
1) Hook the timing belt 0 on the gear of the capstan motor 8,
attach the capstan motor while aligning it with the reference
boss of the mechanism chassis assembly.
Attach the screw (SANG camera pan2 M1.4 × 4.5) 7 and
2)
capstan spring 9. (temporally attachment)
Attach the two screws (camera pan2 M1.4 × 1.6) 6.
3)
Tightening torque: 0.078 ± 0.01 N•m (0.8 ± 0.1 kgf•cm)
4) Attach the six solderings 4 to the FP-228 flexible wiring board
5 (2P) (DEW sensor) and the FP-299 flexible wiring board
(4P).
5) Insert the guide rail T2 3 into the hole on the drum base
assembly and tighten the screw (M1.4 × 2.5) 2.
Tightening torque: 0.078 ± 0.01 N•m (0.8 ± 0.1 kgf•cm)
6) Attach the capstan flexible board and the flexible wiring board
(FP-300) 1 to the holders X, Y and Z.
7) Adjust the height of the capstan motor using the thickness gauge
(Ref. No. J-16). (Refer to 5-3.)
Note: Be careful not to touch the center of the capstan motor 0 shaft and
the FP-228 flexible wiring board (DEW sensor) with soldering iron
or other tool.
2 Screw
(M1.4 × 2.5)
4 Remove the
six solderings
FP-299 flexible
board (4P)
Note: Any foreign materials must not be attached
Fig. 4-4.
— 17 —
Remove the Guide rail (T2)
in the direction of the
arrow D .
D
Guide rail
Drum base
(T2)
assembly
0 Timing belt
to the capstan motor.