Sony DPP-EX7 Service Manual ▷ View online
2-7
DPP-EX7 V1
Switching regulator
Hook
BVTP
2.6
2.6
x
8
2-5. Switching Regulator
1.
Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
1-2-1.)
2.
Remove the DK-45 board. (Refer to Section 2-1-1.)
3.
Remove the paper eject guide assembly. (Refer to
Section 2-3.)
4.
Remove the mechanical deck assembly. (Refer to
Section 2-4.)
5.
Remove one screw and one hook, then remove the
switching regulator in the direction indicated by the
arrow.
arrow.
6.
Attach the switching regulator in the reverse order of
steps 1 to 5.
DK-45 board
PCMCIA ejector
B 2
x
10
2-6. PCMCIA Ejector
1.
Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
1-2-1.)
2.
Remove the DK-45 board. (Refer to Section 2-1-1.)
3.
Remove the four screws, then remove the PCMCIA
ejector.
4.
Attach the PCMCIA ejector in the reverse order of
steps 1 to 3.
steps 1 to 3.
2-8
DPP-EX7 V1
Center shim
Flexible flat cables
Thermal head
Connector
Mechanical deck
assembly
assembly
PSW 2.6
x
6
Portion
A
A
Portion
A
A
2-7. Thermal Head
n
After removing the thermal head, check that the center
After removing the thermal head, check that the center
shim is attached.
1.
Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
1-2-1.)
2.
Remove the DK-45 board. (Refer to Section 2-1-1.)
3.
Remove the paper eject guide assembly. (Refer to
Section 2-3.)
4.
Remove the mechanical deck assembly. (Refer to
Section 2-4.)
5.
Remove the DC fan. (Refer to Section 2-2.)
6.
Remove the MD-45 board. (Refer to Section 2-1-3.)
7.
Pull out the portion A of the connector on the thermal
head in the direction indicated by the arrow, then
disconnect the two flexible flat cables.
disconnect the two flexible flat cables.
8.
Remove the two screws, then remove the thermal
head.
head.
9.
Remove the center shim from the thermal head.
10. Attach the thermal head in the reverse order of steps 1
to 9.
Paper feed frame
assembly
assembly
Chassis assembly
Hooks
Holes
Paper feed frame
assembly
assembly
Pendulum gear
Chassis assembly
Hooks
Holes
Paper feed frame
assembly
assembly
Paper feed
frame holder
frame holder
Chassis assembly
BVTT
2.6
x
5
BVTP
2.6
2.6
x
8
2-8. Paper Feed Frame Assembly
1.
Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
1-2-1.)
2.
Remove the DK-45 board. (Refer to Section 2-1-1.)
3.
Remove the paper eject guide assembly. (Refer to
Section 2-3.)
4.
Remove the mechanical deck assembly. (Refer to
Section 2-4.)
5.
Remove the MD-45 board. (Refer to Section 2-1-3.)
6.
Remove the two screws (BVTT 2.6
x5), then remove
the paper feed frame holder from the chassis assembly.
7.
Remove one screw (BVTP 2.6
x8), then remove the
paper feed frame assembly from the chassis assembly
in the direction indicated by the arrow.
8.
Attach the paper feed frame assembly in the reverse
order of steps 1 to 7.
order of steps 1 to 7.
2-9
DPP-EX7 V1
Ribbon door
Chassis assembly
Cassette guide
Hinges
m
. Attach the paper feed frame assembly while pushing the
. Attach the paper feed frame assembly while pushing the
pendulum gear in the direction indicated by the arrow.
. When attaching the paper feed frame assembly, be sure
to securely insert the four hooks of the chassis assembly
into the four holes of the paper feed frame assembly.
into the four holes of the paper feed frame assembly.
2-9. Chassis Assembly
1.
Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
1-2-1.)
2.
Remove the DK-45 board. (Refer to Section 2-1-1.)
3.
Remove the paper eject guide assembly. (Refer to
Section 2-3.)
4.
Remove the mechanical deck assembly. (Refer to
Section 2-4.)
5.
Remove the MD-45 board. (Refer to Section 2-1-3.)
6.
Remove the paper feed frame assembly. (Refer to
Section 2-8.)
Section 2-8.)
7.
Open the ribbon door, then remove it from the two
hinges of the cassette guide in the direction indicated
hinges of the cassette guide in the direction indicated
by the arrow.
8.
Attach the chassis assembly in the reverse order of
steps 1 to 7.
steps 1 to 7.
BVTT
2.6
2.6
x
5
CN905
Stepping motor
Harness
MD-45 board
2-10. Stepping Motor
1.
Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
1-2-1.)
2.
Remove the DK-45 board. (Refer to Section 2-1-1.)
3.
Remove the paper eject guide assembly. (Refer to
Section 2-3.)
4.
Remove the mechanical deck assembly. (Refer to
Section 2-4.)
5.
Remove the two screws and disconnect one harness
from the connector (CN905) on the MD-45 board, then
remove the stepping motor.
remove the stepping motor.
6.
Attach the stepping motor in the reverse order of steps
1 to 5.
2-10
DPP-EX7 V1
BVTT
2.6
2.6
x
5
BVTT
2.6
2.6
x
5
E transmission
gear assembly
gear assembly
2-11. E Capstan Roller
n
When replacing the E capstan roller, platen roller or pinch
When replacing the E capstan roller, platen roller or pinch
roller, be careful not to touch the roller with bare hands or
dirty gloves. In case that the roller is contaminated, clean it
dirty gloves. In case that the roller is contaminated, clean it
with ethyl alcohol.
1.
Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
1-2-1.)
2.
Remove the DK-45 board. (Refer to Section 2-1-1.)
3.
Remove the paper eject guide assembly. (Refer to
Section 2-3.)
4.
Remove the mechanical deck assembly. (Refer to
Section 2-4.)
5.
Remove the chassis assembly. (Refer to Section 2-9.)
6.
Remove the MD-45 board. (Refer to Section 2-1-3.)
7.
Remove the paper feed frame assembly. (Refer to
Section 2-8.)
8.
Remove the stepping motor. (Refer to Section 2-10.)
9.
Remove the four screws, then remove the E
transmission gear assembly.
transmission gear assembly.
CP shaft earth
Platen roller
Roller bearing
Roller
bearing
bearing
BVTT
2.6
2.6
x
5
B
A
A
C
R pendulum
lever assembly
lever assembly
10. Remove the R pendulum lever assembly.
11. Remove one screw, then remove the CP shaft earth.
11. Remove one screw, then remove the CP shaft earth.
12. Rotate the two roller bearings in the direction indicated
by the arrow A, then remove them.
13. Move the platen roller in the direction indicated by the
arrow B, then remove it in the direction indicated by
the arrow C.
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