Sony Digital Photo Printer DPP-EX7 User manual

DIGITAL PHOTO PRINTER
DPP-EX7
SERVICE MANUAL
Volume 1 1st Edition

DPP-EX7 V1
!WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so.Refer all servicing to
qualified service personnel.
!WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden.Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien.Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
WARNING
This unit has no power switch.
When installing the unit, incorporate a readily
accessible disconnect device in the fixed wiring, or
connect the power cord to a socket-outlet which must
be provided near the unit and easily accessible, so that
the user can turn off the power in case a fault should
occur.
WARNUNG
Dieses Gerät hat keinen Netzschalter.
Beim Einbau des Geräts ist daher im Festkabel ein
leicht zugänglicher Unterbrecher einzufügen, oder das
Netzkabel mu
ß mit einer in der Nähe des Geräts
befindlichen, leicht zugänglichen Wandsteckdose
verbunden werden, damit sich bei einer
Funktionsstörung die Stromversorgung zum Gerät
jederzeit unterbrechen lä ß t.

1
DPP-EX7 V1
Table of Contents
Manual Structure
Purpose of this manual .............................................................................................. 3
Related manuals......................................................................................................... 3
1. Service Information
1-1. Main Parts Location ....................................................................................1-1
1-1-1. Main Block Location..................................................................1-1
1-1-2. Board Location ...........................................................................1-1
1-2. Removal and Installation of Cabinet...........................................................1-1
1-2-1. Upper Cabinet Assembly ...........................................................1-1
1-2-2. LCD Sub Assembly....................................................................1-2
1-3. Sensor Arrangement and Functional Description .......................................1-3
2. Replacement of Main Parts
2-1. Replacement of Board.................................................................................2-1
2-1-1. DK-45 Board ..............................................................................2-1
2-1-2. PW-45 Board..............................................................................2-2
2-1-3. MD-45 Board .............................................................................2-2
2-1-4. JD-45 Board ...............................................................................2-3
2-1-5. PE-45 Board ...............................................................................2-3
2-1-6. RM-45 Board .............................................................................2-4
2-1-7. PR-45 Board ...............................................................................2-4
2-1-8. TP-45 Board ...............................................................................2-5
2-2. DC Fan ........................................................................................................2-5
2-3. Paper Eject Guide Assembly.......................................................................2-6
2-4. Mechanical Deck Assembly........................................................................2-6
2-5. Switching Regulator....................................................................................2-7
2-6. PCMCIA Ejector .........................................................................................2-7
2-7. Thermal Head..............................................................................................2-8
2-8. Paper Feed Frame Assembly.......................................................................2-8
2-9. Chassis Assembly........................................................................................2-9
2-10. Stepping Motor............................................................................................2-9
2-11. E Capstan Roller .......................................................................................2-10
2-12. LCD Module .............................................................................................2-11

2DPP-EX7 V1
3. Service Mode
3-1. Activation ....................................................................................................3-1
3-2. Touch Panel Position Adjustment ...............................................................3-1
3-3. LCD Contrast Check and Adjustment.........................................................3-2
3-4. Density Adjustment for During Thermal Head Replacement.....................3-2
4. Troubleshooting
4-1. Electrical Troubleshooting ..........................................................................4-1
4-2. Error Display ...............................................................................................4-2
4-3. Mechanical Troubleshooting.......................................................................4-5
4-4. Upgrade .......................................................................................................4-7

3
DPP-EX7 V1
Purpose of this manual This manual is the service manual Vol. 1 of Digital Photo Printer DPP-EX7.
This manual describes the information on maintenance and the service information
such as parts replacement, service mode and troubleshooting.
Related manuals In addition to this “Service Manual Vol. 1”, this unit is provided with the manual
below.
..
..
.Service Manual Vol. 2 (Not supplied for products.)
Part No.: 9-955-392-21
This manual describes the semiconductors, spare parts, block diagrams, schematic
diagrams, and board layouts of this unit.
..
..
.Operating Instruction (Supplied for products.)
Part No.: 3-207-207-11
These manuals describe the information required for the actual management and
operation of this unit.
..
..
.“Semiconductor Pin Assignments” CD-ROM (Available on request)
This “Semiconductor Pin Assignments” CD-ROM allows you to search for
semiconductors used in B&P Company equipment.
Semiconductors that cannot be searched for on this CD-ROM are listed in the
service manual for the corresponding unit. The service manual contains a com-
plete list of all semiconductors and their ID Nos., and thus should be used together
with the CD-ROM.
Part number: 9-968-546-XX
Manual Structure

1-1
DPP-EX7 V1
Section 1
Service Information
Switching
regulator
Inverter unit
Chassis
assembly
Paper feed frame assembly
PCMCIA
ejector
Thermal head
DC fan
LCD module
RM-45 board
TP-45 board
MD-45 board
PR-45 board
JD-45 board
PE-45 board
DK-45 board
PW-45 board
1-2. Removal and Installation of Cabinet
1-2-1. Upper Cabinet Assembly
1. Remove the four screws, then remove the upper
cabinet assembly.
2. Disconnect the flexible printed wiring board and one
flexible flat cable from the connectors (CN152 and
CN201) on the DK-45 board.
3. Attach the upper cabinet assembly in the reverse order
of steps 1 to 2.
1-1. Main Parts Location
1-1-1. Main Block Location
1-1-2. Board Location
BVTP
3x20
BVTP
3x20
Upper cabinet
assembly
CN201
CN152
DK-45 board
Flexible printed
wiring board
Flexible
flat cable

1-2 DPP-EX7 V1
PTTWH 2x5
Hinge cover assembly
LCD sub assembly
Upper cabinet
assembly
LCD sub assembly
Spring (PR)
Harness
PSW
2.6x8
BVTP
2.6x6
1-2-2. LCD Sub Assembly
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Remove one screw, then remove the hinge cover
assembly.
3. Remove one screw (BVTP 2.6x6), then remove the
harness.
4. Remove one screw (BVTP 2.6x6), then remove the
spring (PR).
5. Remove two screws (BSW 2.6x8), then remove the
LCD sub assembly in the direction indicated by the
arrow.
6. Attach the LCD sub assembly in the reverse order of
steps 1 to 5.

1-3
DPP-EX7 V1
1-3. Sensor Arrangement and Functional Description
MD-45 board
Ref. Name Type Function
PH903, 904 Mode position sensor Reflection type x2 Detects the position of a DC motor.
PH901, 902 Ribbon code sensor Reflection type x2 Detects the type of a ribbon.
D901 Ribbon mark sensor Transmissive type (LED) Detects the mark of each ribbon color.
PH905 Ribbon in-sensor Reflection type x1 Detects the existence of a ribbon
cassette.
JD-45 board
Ref. Name Type Function
PH1020 Jamming dead sensor Reflection type x1 Detects the paper position.
Detects the paper type.
PH901 D901
PH902
PH905
PH904
PH903
MD-45 board (Side A)
PH1020
JD-45 board (Side A)

1-4 DPP-EX7 V1
PE-45 board
Ref. Name Type Function
PH1030 Paper edge sensor Reflection type x1 Detects the paper position.
Detects the paper type.
RM-45 board
Ref. Name Type Function
Q1040 Ribbon mark sensor Transmissive type Detects the mark of each ribbon color.
(photo transistor)
PE-45 board (Side A)
PH1030
RM-45 board (Side A)
Q1040

2-1
DPP-EX7 V1
Section 2
Replacement of Main Parts
Flexible flat cables
DK-45 board
CN251
CN255
CN253
CN252
Upper DK
shield case
Ferrite holder
BVTP
2.6x8
BVTP
2.6x8
BTP
2.6x10 A
BVTT
2.6x5
A
B
B
Solders
PC/MS guide
assembly
DK-45 board
Lower DK shield case
Solders
Solders
Solder
2-1. Replacement of Board
2-1-1. DK-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Disconnect the four flexible flat cables from the
connectors (CN251, CN252, CN253 and CN255) on
the DK-45 board.
3. Remove the three screws (BVTP 2.6x8), two screws
(BVTT 2.6x5) and one screw (BTP 2.6x10), then
raise the ferrite holder in the direction indicated by the
arrow and remove the DK-45 board.
4. Remove the PC/MS guide assembly from the DK-45
board.
5. Remove the two solders, then remove the upper DK
shield case from the DK-45 board.
6. Remove the five solders, then remove the lower DK
shield case from the DK-45 board.
7. Install the DK-45 board in the reverse order of steps 1
to 6.

2-2 DPP-EX7 V1
BVTP
2.6x6
Flexible flat cable
PW-45 board
CN1301
2-1-2. PW-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Disconnect one flexible flat cable from the connector
(CN1301) on the PW-45 board.
3. Remove one screw, then remove the PW-45 board.
4. Install the PW-45 board in the reverse order of steps 1
to 3.
Ferrite holder
Harnesses
Harnesses
Harnesses
Flexible flat cables
MD-45 board
MD-45 board (Side B)
Terminal
plate Hook
BVTT
2.6x5
CN901
CN903 CN904
CN905
CN906
CN908
CN909
CN910
CN911
2-1-3. MD-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Remove the DK-45 board. (Refer to Section 2-1-1.)
3. Disconnect the seven harnesses from the connectors
(CN901, CN903-906, CN908 and CN909) on the MD-
45 board and two flexible flat cables from the
connectors (CN910 and CN911) on the MD-45 board.
4. Raise the ferrite holder and remove the three screws,
then remove the MD-45 board.
5. Remove one hook, then remove the terminal plate.
6. Install the MD-45 board in the reverse order of steps 1
to 5.

2-3
DPP-EX7 V1
Harness
MD-45 board
JD-45 board
CN1020
P 2x3
2-1-4. JD-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Remove one screw, then remove the JD-45 board.
3. Disconnect one harness from the connector (CN1020)
on the JD-45 board.
4. Install the JD-45 board in the reverse order of steps 1
to 3.
PE-45 board
Paper feed frame
assembly
Paper feed frame
assembly
Hook
Harness
CN1030
A
B
Mechanical deck
assembly
2-1-5. PE-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
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 PE-45 board in the direction indicated by
the arrow B while pushing one hook of the paper feed
frame assembly in the direction indicated by the arrow
A.
6. Disconnect one harness from the connector (CN1030)
on the PE-45 board.
7. Install the PE-45 board in the reverse order of steps 1
to 6.

2-4 DPP-EX7 V1
Paper guide
assembly
Paper feed frame
assembly
Hook
Hook
Hook
Hook
AA
B
RM-45 board
Paper feed frame
assembly
Hook
Harness
CN1040
RM-45 board
Upper cabinet
assembly
Spring (PR)
CN1001
Flexible flat cable
Harness
PR-45 board
BVTP
2.6x6
BVTP
2.6x6
2-1-6. RM-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
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.)
7. Remove the four hooks, then remove the paper guide
assembly from the paper feed frame assembly.
8. Remove the two hooks of the paper feed frame
assembly in the direction indicated by the arrow A,
then remove the RM-45 board in the direction
indicated by the arrow B.
9. Disconnect one harness from the connector (CN1040)
on the RM-45 board.
10. Install the RM-45 board in the reverse order of steps 1 to 9.
2-1-7. PR-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Remove one screw, then remove the spring (PR).
3. Remove the two screws, then disconnect the harness
and remove the PR-45 board.
4. Disconnect one flexible flat cable from the connector
(CN1001) on the PR-45 board.
5. Install the PR-45 board in the reverse order of steps 1
to 4.

2-5
DPP-EX7 V1
CN1201
CN1202
PTP 2x5
CN1203
TP-45 board
Flexible flat cable
LCD front cabinet
assembly
Flexible printed
wiring boards
2-1-8. TP-45 Board
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Remove the LCD subassembly. (Refer to Section 1-2-
2.)
3. Remove the LCD rear cabinet. (Refer to Section 2-12.)
4. Remove the hinge unit. (Refer to Section 2-12.)
5. Remove the two flexible printed wiring boards from
the connectors (CN1201 and CN1202) on the TP-45
board and disconnect one flexible flat cable from the
connector (CN1203) on the TP-45 board.
6. Remove one screw, then remove the TP-45 board from
the LCD front cabinet assembly.
7. Install the TP-45 board in the reverse order of steps 1
to 6.
Harness
CN903
MD-45 board
DC fan
PS 3x10
2-2. DC Fan
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Disconnect one harness from the connector (CN903)
on the MD-45 board.
3. Remove the two screws, then remove the DC fan.
4. Attach the DC fan in the reverse order of steps 1 to 3.

2-6 DPP-EX7 V1
Front door
PUSH portion
Paper eject guide
assembly
BVTP
2.6x8BVTP
2.6x8
2-3. Paper Eject Guide Assembly
1. Remove the upper cabinet assembly. (Refer to Section
1-2-1.)
2. Remove the DK-45 board. (Refer to Section 2-1-1.)
3. Push the PUSH portion and open the front door.
4. Remove the four screws, then remove the paper eject
guide assembly.
5. Attach the paper eject guide assembly in the reverse
order of steps 1 to 4.
Flexible flat
cable
Switching
regulator
Harness
Mechanical
deck assembly
BVTP
2.6x8
BTP
2.6x10
2-4. Mechanical Deck Assembly
1. Remove the upper cabinet assembly. (Refer to Section
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. Disconnect one harness and one flexible flat cable
from the switching regulator.
5. Remove the two screws (BVTP 2.6x8) and two screws
(BTP 2.6x10), then remove the mechanical deck
assembly.
6. Attach the mechanical deck assembly in the reverse
order of steps 1 to 5.

2-7
DPP-EX7 V1
Switching regulator
Hook
BVTP
2.6x8
2-5. Switching Regulator
1. Remove the upper cabinet assembly. (Refer to Section
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.
6. Attach the switching regulator in the reverse order of
steps 1 to 5.
DK-45 board
PCMCIA ejector
B 2x10
2-6. PCMCIA Ejector
1. Remove the upper cabinet assembly. (Refer to Section
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.

2-8 DPP-EX7 V1
Center shim
Flexible flat cables
Thermal head
Connector
Mechanical deck
assembly
PSW 2.6x6
Portion
APortion
A
2-7. Thermal Head
n
After removing the thermal head, check that the center
shim is attached.
1. Remove the upper cabinet assembly. (Refer to Section
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.
8. Remove the two screws, then remove the thermal
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
Chassis assembly
Hooks
Holes
Paper feed frame
assembly
Pendulum gear
Chassis assembly
Hooks
Holes
Paper feed frame
assembly
Paper feed
frame holder
Chassis assembly
BVTT
2.6x5
BVTP
2.6x8
2-8. Paper Feed Frame Assembly
1. Remove the upper cabinet assembly. (Refer to Section
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 2.6x5), then remove
the paper feed frame holder from the chassis assembly.
7. Remove one screw (BVTP 2.6x8), 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.

2-9
DPP-EX7 V1
Ribbon door
Chassis assembly
Cassette guide
Hinges
m
.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.
2-9. Chassis Assembly
1. Remove the upper cabinet assembly. (Refer to Section
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.)
7. Open the ribbon door, then remove it from the two
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.
BVTT
2.6x5
CN905
Stepping motor
Harness
MD-45 board
2-10. Stepping Motor
1. Remove the upper cabinet assembly. (Refer to Section
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.
6. Attach the stepping motor in the reverse order of steps
1 to 5.

2-10 DPP-EX7 V1
BVTT
2.6x5
BVTT
2.6x5
E transmission
gear assembly
2-11. E Capstan Roller
n
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
with ethyl alcohol.
1. Remove the upper cabinet assembly. (Refer to Section
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.
CP shaft earth
Platen roller
Roller bearing
Roller
bearing
BVTT
2.6x5
B
A
A
C
R pendulum
lever assembly
10. Remove the R pendulum lever assembly.
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.