Optical Drive Alignment; Optical Drive Alignment Overview; Precautions; Fixtures - Sony CBK-HD01 Maintenance Manual

8-1. Optical Drive Alignment Overview

8-1-1. 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 1-12-1.)
. 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.

8-1-2. 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)

8-1-3. Preparations Before Adjustment

1. Turn off the power.
2. Remove the outside panel. (Refer to Section 1-7-1.)
3. Remove the loader assembly. (Refer to Section 7-1-1.)
4. Turn on the power.
5. Display the service menu. (Refer to Section 4-9.)
6. Select "VDR MAINTENANCE" by turning the
MENU knob, and press the MENU knob.
7. Select "DRIVE MAINTENANCE" by turning the
MENU knob, and press the MENU knob.
8. Select "YES" by turning the MENU knob, and press
the MENU knob.
9. Select "ADJUST" by turning the MENU knob, and
press the MENU knob. The ADJUST screen appears.
DRIVE MAINTENANCE
ADJUST
*SERVO_1
SKEW
SERVO_2
OTHER ADJUST
PDW-700/V1 (E)
Section 8

Optical Drive Alignment

8-2. Procedures After Replacing the

8-2-1. Adjustment After Replacing the

After replacing the optical block assembly, perform
adjustment in the following order.
. Servo1 Automatic Adjustment (Refer to Section 8-3.)
. Skew Adjustment (Refer to Section 8-4.)
. Servo2 Automatic Adjustment (Refer to Section 8-5.)
. Clearing Media Log (Refer to Section 8-6.)
8-2-2. Adjustment After Replacing the DR-
After replacing the DR-606 board, or after replacing any
parts in repair, perform the procedure in the following
order.
1. Upgrade the firmware to the latest version. (Only
when the board is replaced.)
Refer to "1-11-2. Firmware Update Using the USB
Memory" for details.
2. Perform adjustment in the following order.
. Servo1 Automatic Adjustment (Refer to Section 8-3.)
. Skew Adjustment (Refer to Section 8-4.)
. Servo2 Automatic Adjustment (Refer to Section 8-5.)
. ACCELERATION OFFSET (Refer to Section 4-10-21.)
8-2-3. Adjustment After Replacing the SE-
After replacing the SE-857 board, or after replacing any
parts in repair, perform adjustment in the following order.
. UPLOAD TO EEPROM (Refer to Section 4-10-26.)
n
After replacing the SE-857 board, mount the EEPROM
(IC4) from the old board to the new board.
If EEPROM (IC4) from the old board is not mounted to
the new board, perform this menu only when IC4 is
separately replaced.
. ACCELERATION OFFSET (Refer to Section 4-10-21.)
Optical Block Assembly and the

Board

Optical Block Assembly
606 Board
857 Board
8-1