SONY DSC-T7 Service Manual L2 v1.1

DSC-T7

SERVICE MANUAL

Ver 1.1 2005. 06

Revision History

How to use

Acrobat Reader

Link

SPECIFICATIONS

BLOCK DIAGRAMS

LEVEL 2

DSC-T7

US Model

Canadian Model

AEP Model

UK Model

E Model

Hong Kong Model

Australian Model

Chinese Model

Japanese Model

Brazilian Model

Argentina Model

Korea Model

Tourist Model

PRINTED WIRING BOARDS

SERVICE NOTE

DISASSEMBLY

• For ADJUSTMENTS (SECTION 6), refer to SERVICE MANUAL, ADJ (9-876-879-51).

• For INSTRUCTION MANUAL, refer to SERVICE MANUAL, LEVEL 1 (9-876-879-41).

• Reference number search on printed wiring boards is available.

On the SY-115 board

This service manual provides the information that is premised the circuit board replacement service and not intended repair inside the SY-115 board. Therefore, schematic diagram, printed wiring board, mounted parts location and electrical parts list of the shown. The following pages are not shown.

Schematic diagram .............................Pages 4-13 to 4-26

Printed wiring board............................Pages 4-31 to 4-34

Waveforms ........................................... Page 4-37

Some reassembling steps of the unit require attention. Be sure to read HELP before reassembling.

FRAME SCHEMATIC DIAGRAMS

SCHEMATIC DIAGRAMS

Mounted parts location .............................

Electrical parts list................................... Pages 5-7 to 5-9

REPAIR PARTS LIST

SY-115

Page 4-39

board are not

DIGITAL STILL CAMERA

DSC-T7

9-876-879-31

Sony EMCS Co.

2005F1600-1

Published by DI Technical Support Section

SPECIFICATIONS

Camera

[System]

Image device 7.17 mm (1/2.5 type) color

CCD, Primary color filter

Total pixel number of camera

Approx. 5 255 000 pixels

Effective pixel number of camera

Approx. 5 090 000 pixels

Lens Carl Zeiss Vario-Tessar

3 zoom lens f = 6.33 – 19.0 mm (38 – 114 mm when converted to a 35 mm still camera) F3.5 – 4.4

Exposure control Automatic exposure, Scene

Selection (10 modes)

White balance Automatic, Daylight, Cloudy,

Fluorescent, Incandescent, Flash

File format (DCF compliant)

Still images: Exif Ver. 2.2 JPEG compliant, DPOF compatible Movies: MPEG1 compliant

(Monaural) Recording media “Memory Stick Duo” Flash Recommended distance (ISO

set to Auto): 0.1 m to 2.6 m

(3 15/16 inches to 8 feet 6 3/8

inches) (W)/0.5 m to 2.1 m (1

feet 7 11/16 inches to 6 feet

10 11/16 inches) (T)

[Input and Output connectors]

Multi connector USB communication

Hi-Speed USB (USB 2.0

compliant)

[LCD screen]

LCD panel 6.2 cm (2.5 type) TFT drive Total number of dots

230 400 (960240 ) dots

[Power, general]

Power Rechargeable battery pack NP-

FE1, 3.6 V AC-LS5/AC-LS5K AC Adaptor

(not supplied), 4.2 V

Power consumption (during shooting)

1.1 W

Operating temperature

0°C to +40°C (+32°F to +104°F)

Storage temperature

–20°C to +60°C (–4°F to +140°F)

Dimensions 91.760 .214.7 mm

(3 5/8◊2 3/819 /32 inches) (W/H/D, excluding maximum protrusions)

Mass Approx. 136 g (4.8 oz)

(including NP-FE1 battery pack

and neck strap) Microphone Electret condenser microphone Speaker Piezo speaker Exif Print Compatible PRINT Image Matching III

Compatible PictBridge Compatible

Interface Adaptor

[Input and Output connectors]

A/V OUT (MONO) jack (Monaural)

Minijack

Video: 1 Vp-p, 75 ,

unbalanced, sync negative

Audio: 327 mV (at a 47 k

load)

Output impedance 2.2 k USB jack mini-B USB communication

Hi-Speed USB (USB 2.0 High-

Speed compliant) DC IN jack Camera connector

BC-CS3 battery charger

Power requirements

AC 100 to 240 V, 50/60 Hz,

3.2 W Output voltage DC 4.2 V, 500 mA Operating temperature

0°C to +40°C (+32°F to +104°F)

Storage temperature

–20°C to +60°C (–4°F to +140°F)

Dimensions Approx. 662391 mm

(2 5/8 29/32 3 5/8 inches) (W/H/D)

Mass Approx. 70 g (2.7 oz)

Rechargeable battery pack NP-FE1

Used battery Lithium-ion battery Maximum voltage

DC 4.2 V Nominal voltage DC 3.6 V Capacity 1.6 Wh (450 mAh)

Design and specifications are subject to change without notice.

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— 2 —

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer.

1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors.

3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair . Point them out to the customer and recommend their replacement.

4. Look for parts which, through functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

5. Check the B+ voltage to see it is at the values specified.

6. Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY .

Unleaded solder

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40°C higher than

ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350°C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!

• Strong viscosity Unleaded solder is more viscous (sticky , less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

CAUTION :

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.

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— 3 —

TABLE OF CONTENTS

1. SERVICE NOTE ........................................................1-1

2. DISASSEMBLY

2-1. DISASSEMBLY······························································2-1 2-2. SERVICE POSITION ·····················································2-3 2-3. CIRCUIT BOARDS LOCATION ···································2-5 2-4. FLEXIBLE BOARDS LOCATION ································2-6

HELP (List of caution points is shown here.)

3. BLOCK DIAGRAMS

3-1. OVERALL BLOCK DIAGRAM ····································3-1 3-2. POWER BLOCK DIAGRAM ·········································3-3

4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

4-1. FRAME SCHEMATIC DIAGRAM································4-1 4-2. SCHEMATIC DIAGRAMS

• CD-541 (CCD IMAGER) SCHEMATIC DIAGRAM ······························4-5

• MC-149 (MULTI CONNECTOR) SCHEMATIC DIAGRAM ······························4-7

• MS-258 (MS I/O CONNECTOR) SCHEMATIC DIAGRAM ······························4-7

• SW-454 (SW, SY-MC RELAY) SCHEMATIC DIAGRAM ······························4-8

• CONTROL SWITCH BLOCK (RL51710) SCHEMATIC DIAGRAM ······························4-9

• CONTROL SWITCH BLOCK (GP51710) SCHEMATIC DIAGRAM ····························4-10

• FLASH UNIT (FLASH DRIVE) SCHEMATIC DIAGRAM ····························4-11

5. REPAIR PARTS LIST

5-1. EXPLODED VIEWS ······················································5-1 5-1-1. OVERALL SECTION····················································5-3 5-1-2. MAIN SECTION ··························································· 5-4

Parts list of the SY-115 board are not shown. Pages from 5-7 to 5-9 are not shown.

Shematic diagram of the SY-115 board are not shown. Pages from 4-13 to 4-26 are not shown.

4-3. PRINTED WIRING BOARDS

• CD-541 (CCD IMAGER) PRINTED WIRING BOARD ·······················4-29

• CONTROL SWITCH BLOCK (RL51710)

(FUNCTION KEY)

PRINTED WIRING BOARD ·······················4-29

• MC-149 (MULTI CONNECTOR) PRINTED WIRING BOARD ·······················4-30

• MS-258 (MS I/O CONNECTOR) PRINTED WIRING BOARD ·······················4-30

• SW-454 FLEXIBLE (SW, SY-MC RELAY) PRINTED WIRING BOARD ·······················4-30

Printed wiring board of the SY-115 board are not shown. Pages from 4-31 to 4-34 are not shown.

4-4. WAVEFORMS ······························································4-35

Waveforms of the SY-115 board are not shown. Page 4-36 is not shown.

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— 4 —

• NOTE FOR REPAIR

1. SERVICE NOTE

Make sure that the flat cable and flexible board are not cracked of bent at the terminal. Do not insert the cable insufficiently nor crookedly.

Cut and remove the part of gilt which comes off at the point. (Take care that there are some pieces of gilt left inside)

When remove a connector, don't pull at wire of connector. Be in danger of the snapping of a wire.

When installing a connector, don't press down at wire of connector. Be in danger of the snapping of a wire.

[Discharging of the FLASH unit’s charging capacitor]

The charging capacitor of the FLASH unit is charged up to the maximum 300 V potential. There is a danger of electric shock by this high voltage when the capacitor is handled by hand. The electric shock is caused by the charged voltage which is kept without discharging when the main power of the DSC-T7 is simply turned off. Therefore, the remaining voltage must be discharged as described below.

Preparing the Short Jig

To preparing the short jig. a small clip is attached to each end of a resistor of 1 kΩ /1 W (1-215-869-11) Wrap insulating tape fully around the leads of the resistor to prevent electrical shock.

Discharging the Capacitor

1 Remove the cabinet (front) assembly. 2 Peel off the absorbing sheet. 3 Remove the flexible board. 4 Short circuits between the positive and the negati ve terminals of

charged capacitor with the short jig about 10 seconds.

Capacitor

1 kΩ/1 W

Wrap insulating tape.

Flash unit

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Shorting jig (1k

Ω

/ 1w)

1-1

[Description on Self-diagnosis Display]

Self-diagnosis display

• C: ss: ss The contents which can be handled by customer, are displayed.

• E: ss: ss The contents which can be handled by engineer, are displayed.

Display Code

C:32:01

C:13:01

E:91:01

E:01:XX

E:61:00 *1

E:61:10 *1

Note : The error code is cleared if the battery is removed, except defective flash unit.

*1: The error display is given in two ways.

Turn off the main power then back on.

Replace the memory stick. Format the memory stick with the DSC-T7.

Checking of flash unit or replacement of flash unit.

Checking of lens drive circuit

Countermeasure

Trouble with hardware.

• The type of memory stick that cannot be used by this machine, is inserted.

• Data is damaged.

• Unformatted memory stick is inserted.

Abnormality when flash is being charged.

When failed in the focus initialization.

Cause

Caution Display During Error

SYSTEM ERROR

MS ERROR

Flash LED Flash display Flashing at 3.2 Hz

—

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1-2E

The following flow chart shows the disassembly procedure.

2-1. DISASSEMBLY

2. DISASSEMBLY

Some reassembling steps of the unit require attention. Be sure to read HELP before reassembling.

Work while suppressing MC sheet metal by the finger.

Note:

MC sheet metal.

MC sheet metal

1 2 3 4

SW-454 flexible board Claw SW-454 flexible board T wo claws

Claw

SY-115

Flexible board

(from the Control switch block (RL51710))

Flexible board

(from the MS-258 board)

SY-115 board, MS guide assembly, etc.

Note:

Be careful not to deform

the Cabinet (front) assembly.

Be careful not to drop the

1 2 3 4 5 6

counterclockwise to disengage the claw e.

Two screws (M1.4x2.5) silver Screw (M1.4x2.5) silver Two screws (M1.4x2.5) silver Twist the strap in the direction of arrow a. Open the battery lid. Grab b, c, and d, and apply force so that d turns

SY-115

Claw f

Cabinet (front) assembly

Ornamental plate

HELP 01 HELP 02

Absorbing sheet

Flexible board (from the LCD unit)

SY-115

Control switch block (GP51710)

Screw (M1.4x2.5) silver

Remove the two claws in the direction

of the arrow.

Main frame assembly, LCD unit, etc.

Cabinet (rear) assembly,

control switch block (GP51710), etc.

Be sure to discharge the capacitor.

SY-115

HELP 04 (disassembly of the control switch block (GP51710))

Capacitors

Shorting jig (1k

Ω

Caution

/ 1w)

Flash unit

Flexible board (Flash unit)

Pick up the AF guide

Two claws

Claw

T wo claws

AF LED

AF guide

Flash unit

SY-115

UKI sheet

Flexible board (from the lens unit)

Flexible board

(from the CCD block assembly)

Lens section

HELP 03

SY-115

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SY-115

Claw

MS guide assembly

SY insulating sheet

SW-454 flexible board

SY-115 board, battery terminal board

HELP 05

MS-258 board

Two MS electrostatic sheets

1 2 3 4

Control switch block (RL51710) Claw MC sheet metal MC-149 board

HELP 06 (disassembly of the control switch block (RL51710))

HELP 07 (disassembly of the piezo speaker)

2-1 2-2

2-2. SERVICE POSITION

2. DISASSEMBLY

[SERVICE POSITION TO CHECK THE SY-115 BOARD]

Note1: By using an adhesive tape, press the lens cover switch (S701).

SY-115

Note2: When checking the VIDEO AMP (SY-115 board IC350), connect an A/V connecting cable to the A/V jack of the conversion adaptor.

DC-IN

AC power adaptor

AC IN

S701 Lens cover switch (Note1)

Conversion adaptor

CN001

LCD unit

Control switch block (RL51710)

CN001

Control switch block (GP51710)

Flash unit

MC-149 board

SY-115

CN002

SY-115

SW-454 flexible board

CN706

SY-115 board, Battery terminal board

SY-115

CN707

BOARD

CN701

CN703

CN705

CN704 CN702

CD-541 board

MS-258 board

Lens section

Caution

Be sure to discharge the capacitor.

Flash unit

Capacitors

Shorting jig (1kΩ / 1w)

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2-3 2-4

2-3. CIRCUIT BOARDS LOCATION

MC-149

2. DISASSEMBLY

SY-115

NAME FUNCTION

CD-541 MC-149

SY-115

CCD IMAGER MULTI CONNECTOR LENS DRIVE, CAMERA A/D CONV., TIMING GENERATOR, CAMERA DSP, LENS CONTROL, 256M SDRAM, AUDIO PROCESS, CONNECTOR, DC/DC CONVERTER

CD-541

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2-5

2-4. FLEXIBLE BOARDS LOCATION

The flexible boards contained in the lens block is not shown.

2. DISASSEMBLY

SW-454

CONTROL SWITCH BLOCK (GP51710)

MS-258

CONTROL SWITCH BLOCK (RL51710)

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2-6E

HELP

Sheet attachment positions and procedures of processing the flexible boards/harnesses are shown.

HELP 01

To prevent the cabinet (front) assembly from producing a gap, install the screws in the order as in the figure on the right when reassembling.

HELP 02

When reassembling, insert the claw of the cabinet (front) assembly under the claw of the cabinet (rear) assembly at the deep end of the hole "a".

Claw of the Cabinet

Claw

(rear) assembly

Claw of the Cabinet (front) assembly

Claw of the Cabinet (rear) assembly

Cabinet (front) assembly

HELP 03

When reassembling, attach the CCD insulation sheet first, and then attach the CD radiation sheet, adhesive surface of the CD-541 board.

CD radiation sheet

CCD insulation sheet

Claw of the Cabinet (front) assembly

Adhesive surface of the CD-541 board

Hole a

Claw of the Cabinet (rear) assembly

CD radiation sheet

CCD insulation sheet

Note:

Removing it CCD imager as a

single unit requires adjustment.

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CD-541 board

HELP

+ 24 hidden pages