PDW-700/V1 (E)
7-14
7-1-7. Replacing Seek Motor Assembly
m
. The seek motor assembly requires periodic replacement. Refer to “6-1. Periodic Check/Replacement
Parts List” for details.
. To prevent the possibility of damage to the optical block assembly in the drive assembly by static
electricity charged in a human body or clothes, be sure to establish a ground before starting the service
operation. (Refer to Section 1-12-1.)
. The spindle motor and the actuator around the objective lens have intense magnetic circuits. Keep
magnetic substance away from these parts. If the magnetic force makes a screwdriver hit the actuator,
the objective lens will be damaged. If the magnetic substance is moved close to these parts, their
characteristics may be changed.
1. Remove the outside panel assembly.
(Refer to Section 1-7-1.)
2. Remove the laser caution sheet.
(Refer to Section 1-6-2 step 2.)
3. Remove the corner block with adhesive sheet
and cover sheet.
(Refer to Section 7-1-1 step 3.)
4. Remove the SW guard assembly.
(Refer to Section 1-7-6.)
5. Remove the loader assembly.
(Refer to Section 7-1-1.)
6. Remove the drive sub assembly.
(Refer to Section 7-1-2.)
7. Reverse the drive sub assembly.
n
Do not to put the drive sub assembly reversed
on anywhere. If it is put, this may cause
damage to the spindle motor or the optical
block assembly.
8. Remove the No.2 gear and the No.3 gear
assembly. (Refer to Section 7-1-6.)
9. Disconnect the harness from the connector
CN2.
10. Remove the two screws, and remove the seek
motor assembly.
11. Secure a new seek motor assembly with two
screws.
Tightening torque:
10 x 10
_2
± 0.01 N.m (1.0 ± 0.1 kgf.cm)
12. Clamp the harness to the two hooks, and
connect it to the connector CN2.
13. Reinstall the removed parts by reversing
steps 1 to 8.
Seek motor assembly
CN2
Hooks
Screws (M1.7)
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