Sony DSR-2000A, Service Manual

Page: 46 / 234

3-22
DSR-2000A/2000AP
SE-522 board
Sensors
Positioning hole
T drawer arm
Positionin pin
Square
holes
Square holes
Positionin pin
Positioning
hole Screws
P1.4
x
3.5
Flexible card wire
CN2
CN3
Sensor
Connector
(CN3)
SE-521 board
Connector
(CN4)
P1.4 x 3.5
Flexible
card wire
Flexible
card wire
Claw of
worm holder
Removal/Reattachment of the SE-521 board
(1) Remove the top panel. (Refer to Section 3-3.)
(2) Remove the cassette compartment.
(Refer to Section 3-4.)
(3) Remove the TG1 arm assembly. (Ref to Section 7-13.)
(4) Remove the loading motor assembly.
(Refer to Section 7-18.)
(5) Disconnect the flexible card wire from the connector
(CN3) of the SE-521 board.
(6) Disconnect the flexible card wire from the connector
(CN4) of the SE-521 board.
(7) Remove the screw to remove the SE-521 board.
(8) Fit the hole and the slotted hole of the SE-521 board
on the two shafts of the MD chassis and fix it with the
screw.
Tightening Torque : 0.1 N
. m {1 kgf . cm}
n
Use care not to pinch the tip of the flexible card wire
of the S tension regulator assembly between the
SE-521 board and the chassis.
Place the SE-521 board under the claw of the worm
holder.
(9) Reconnect the flexible card wire to the connector
(CN4) of the SE-521 board.
(10)Reconnect the flexible card wire of the S tension
regulator assembly to the connector (CN3) of the
SE-521 board.
(11)Reinstall the loading motor assembly.
(Refer to Section 7-18.)
(12)Reattach the TG1 arm assembly.
(Refer to Section 7-13.)
Removal/Reattachment of the SE-522 board
(1) Remove the top panel. (Refer to Section 3-3.)
(2) Remove the cassette compartment.
(Refer to Section 3-4.)
(3) Disconnect the two flexible cable wires from the
connectors (CN2, CN3) of the SE-522 board.
(4) Remove the two screws (P1.4
x
3.5) and remove the
SE-522 board avoiding any contacts to the T drawer
arm assembly.
(5) Fit the two positioning holes of the SE-522 board on
the positioning pins of the MD chassis, and insert the
sensors (PH1, PH2, and PH3) of the SE-522 board in
the square holes in the MD chassis.
(6) Reattach the SE-522 board in the reverse order of the
removing steps (1) to (5).
Tightening Torque : 0.1 N
. m {1 kgf . cm}