Optical Drive Alignment; Optical Drive Alignment Overview; Precautions; Fixtures - Sony PDW-HD1500 Maintenance Manual

7-1. Optical Drive Alignment Overview

7-1-1. Precautions

. Be sure to perform each adjustment in order unless any
instructions are provided.
. 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. If the magnetic force
makes a screwdriver hit the actuator, the objective lens
will be damaged. If a magnetic substance comes close to
these parts, their characteristics may be changed.

7-1-2. Fixtures

. Alignment disc (PFD23A-RS)
. Torque driver (for 3 kg)
. Bit for torque driver (M2)
. Flat-blade screwdriver
. Locking compound
. Weight (50 to 100 g)

7-1-3. Preparations Before Adjustment

1. Turn off the power.
2. Remove the top panel. (Refer to Section 1-4-1.)
3. Remove the stay sub (upper) assembly.
(Refer to Section 6-3.)
4. Remove the top cover (A) assembly.
(Refer to Section 6-3.)
5. Remove the loader (P-200) assembly.
(Refer to Section 6-3.)
6. Turn on the power.
7. Display the maintenance menu. (Refer to Section 4-1.)
8. Select "DRIVE (M6)" with rotate the [PUSH|SET]
knob or the [)] button, and press the [PUSH|SET]
knob or the SELECT (F2) or the [*] button.
9. The (D0) DRIVE MAINTENANCE screen appears.
Repeat step 8, rotate the [PUSH|SET] knob or the
SELECT (F2) button, and press the [*] button.
10. Press the [PUSH|SET] knob.
PDW-HD1500/V1 (E)
Section 7

Optical Drive Alignment

11. Select "ADJUST" with rotate the [PUSH|SET] knob
or the [)] button, and press the [*] button.
The ADJUST screen appears.

7-2. Servo1 Automatic Adjustment

Fixtures
. Alignment disc (PFD23A-RS)
. Weight (50 to 100 g)
Adjustment Procedure
1. Display the adjustment items referring to Section 7-1-3.
2. Select "SERVO_1" with the [(]/[)] button, and press
the [*] button.
3. Select "OP-0" or "OP-1" with the [(]/[)] button, and
press the [*] button.
4. A confirmation screen appears waiting for entry of the
[SET] button.
DRIVE MAINTENANCE
ADJUST
SERVO_1
MECHA RD
SERVO_2
OTHER ADJUST
DRIVE MAINTENANCE
ADJUST
SERVO_1
SELECT OP
OP-0
OP-1
SERVO_1
OP-0
ADJUST START?
OK: SET KEY
EXIT: MENU KEY
7-1