Se-857 Board - Sony CBK-HD01 Maintenance Manual

7-2-2. SE-857 Board

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 1-12-1.)
. 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.
. Life of flexible card wire and flexible board will be significantly shortened if they are folded. Flexible
board is easily cut. Be very careful not to fold them.
Removal
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. Disconnect the flexible card wires from the
connectors CN3, CN600, and CN1125.
7. Remove the ten screws, and remove the SE-
857 board and the shield plate.
8. Disconnect the dew sensor harness from the
connector CN4.
9. Disconnect the fan motor from the connector
CN1.
Reinstallation
1. When installing a new SE-857 board, fold it
several times as shown in the figure to
maintain the folded shape.
PDW-700/V1 (E)
Shield plate
Screws
CN1
(M1.7)
CN4
Screws
(M1.7)
CN3
SE-857 board
b
a
a
b
Screws
(M1.7)
Screw
(M1.7)
CN1125
CN600
SE-857 board
b
a
a
: Mountain fold (three)
b
: Valley fold (three)
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