Replacing No.2 Gear And No.3 Gear Assemblies - Sony PDW-HD1500 Maintenance Manual

6-8. Replacing No.2 Gear and No.3 Gear Assemblies

m
. 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 1-14.)
. The spindle motor and the actuator around the objective lens have a powerful magnet. Keep magnetic
substance away from these parts. If the magnetic force makes a screwdriver hit the actuator, the objec-
tive lens will be damaged. If a magnetic substance comes close to these parts, their characteristics may
be changed.
Fixtures
. Parallel pin (2 x 20) : 2
. Stopper washer :
2
Removal
1. Remove the top panel assembly.
(Refer to Section 1-4-1.)
2. Remove the stay sub (upper) assembly.
(Refer to Section 6-3.)
3. Remove the top cover (A) assembly.
(Refer to Section 6-3.)
4. Remove the loader assembly.
(Refer to Section 6-3.)
5. Remove the drive sub assembly.
(Refer to Section 6-6.)
6. Turn the drive sub assembly upside down.
m
. Do not place the drive sub assembly upside
down on a workbench or on anywhere.
Doing so may result in damage of the
optical block assemblies and spindle motor.
. Before starting removal, be sure to insert
the parallel pins into the No. 3 gear assem-
bly and into the OP rack assembly respec-
tively. Start the removal work after the
parallel pins have been inserted.
7. Remove the stopper washer, and remove the
No.3 gear assembly A.
8. Remove the stopper washer, and remove the
No.2 gear assembly A.
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For removal of the No.2 gear assembly B and
that of the No. 3 gear assembly B, refer to the
removal procedure of the No.2 gear assembly
A and that of the No. 3 gear assembly A.
PDW-HD1500/V1 (E)
Parallel pin
Stopper washer
No.2 gear A
No.3 gear assembly B
Stopper washer
No.3 gear assembly A
No.2 gear assembly B
Parallel pin
6-13