Sony DSC-W90 Service Manual

DSC-W90

SERVICE MANUAL

Ver. 1.0 2007.02

Revision History

How to use

Acrobat Reader

Internal memory

ON BOARD

Photo: Silver

Link

SPECIFICATIONS

BLOCK DIAGRAMS

LEVEL 2

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Hong Kong Model

Chinese Model

Korea Model

Argentine Model

Brazilian Model

PRINTED WIRING BOARDS

SERVICE NOTE

DISASSEMBLY

• Precaution on Replacing the SY-169 Board

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

FRAME SCHEMATIC DIAGRAM

SCHEMATIC DIAGRAMS

REPAIR PARTS LIST

DIGITAL STILL CAMERA

DSC-W90_L2

Sony EMCS Co.

2007B0500-1

Published by Kohda TEC9-852-192-31

SPECIFICATIONS

Camera

[System]

Image device:

7.18 mm (1/2.5 type) color CCD, Primary color filter

Total pixel number of camera:

Approx. 8 286 000 pixels

Effective pixel number of camera:

Approx. 8 083 000 pixels

Lens: Carl Zeiss Vario-Tessar 3× zoom lens f =

5.8 – 17.4 mm (35 – 105 mm when converted to a 35 mm still camera) F2.8 – 5.2

Exposure control: Automatic exposure, Scene

Selection (7 modes)

White balance: Automatic, Daylight, Cloudy,

Fluorescent 1,2,3, Incandescent, Flash

File format (DCF compliant):

Still images: Exif Ver. 2.21 JPEG compliant, DPOF compatible Movies: MPEG1 compliant (Monaural)

Recording media: Internal Memory (approx.

31 MB), “Memory Stick Duo”

Flash:Flash range (ISO sensitivity

(Recommended exposure Index) set to Auto): approx. 0.2 to 3.3 m (7 7/8 inches to 10 feet 10 inches) (W)/approx. 0.4 to 1.8 m (1 feet 33/4 inches to 5 feet 10 7/8 inches) (T)

[Input and Output connectors]

Multi connector Video output

USB communication: Hi-Speed USB (USB 2.0

compliant)

Audio output (Monaural) USB communication

[LCD screen]

LCD panel: 6.2 cm (2.5 type) TFT drive Total number of dots: 115 200 (480 × 240) dots

[Power, general]

Power: Rechargeable battery pack NP-BG1, 3.6 V

AC-LS5K AC Adaptor (not supplied), 4.2 V

Power consumption (during shooting with the

LCD screen on): 1.1W Operating temperature: 0 to 40°C (32 to 104°F) Storage temperature: –20 to +60°C (–4 to +140°F) Dimensions: 91.0 × 58.0 × 22 .9 mm (3 5/8 ×

23/8 × 29/32 inches) (W/H/D, excluding

protrusions)

Approx. 155 g (5.5 oz) (including NP-

Mass:

BG1 battery pack and strap, etc.) Microphone: Monaural Speaker: Monaural Exif Print: Compatible PRINT Image Matching III: Compatible PictBridge: Compatible

BC-CSG/BC-CSGB/BC-CSGC battery charger

Power requirements: AC 100 to 240 V, 50/60 Hz,

2W (BC-CSG/BC-CSGC)/ 2.6 W (BC-

CSGB) Output voltage: DC 4.2 V, 0.25 A Operating temperature: 0 to 40°C (32 to 104°F) Storage temperature: -20 to +60°C (–4 to

+140°F) Dimensions: Approx. 62 × 24 × 91 mm (2 1/2 ×

31/32 × 35/8 inches) (W/H/D) Mass: Approx. 75 g (2.7 oz)

Rechargeable battery pack NPBG1

Used battery: Lithium-ion battery Maximum voltage: DC 4.2 V Nominal voltage: DC 3.6 V Capacity: 3.4 Wh (960 mAh)

Design and specifications are subject to change without notice.

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— 2 —

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

CAUTION

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.

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.

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.

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.

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— 3 —

1. SERVICE NOTE

1-1. PRECAUTION ON REPLACING THE SY-169 BOARD

DESTINATION DATA

When you replace to the repairing board, the written destination data of repairing board also might be changed to original setting. Refer to Service Manual ADJ, and perform “DESTINATION DATA WRITE”.

USB SERIAL No.

The set is shipped with a unique ID (USB Serial No.) written in it. This ID has not been written in a new board for service, and therefore it must be entered after the board replacement. Refer to Service Manual ADJ, and perform “USB SERIAL No. INPUT”.

1-2. SELF-DIAGNOSIS FUNCTION

1-2-1. Self-diagnosis Function

When problems occur while the unit is operating, the self-diagnosis function starts working, and displays on the LCD screen what to do. Details of the self-diagnosis functions are provided in the Instruction manual.

LCD screen

Blinks at 3.2 Hz

0 0

Detailed Code

Refer to “1-2-3. Self-diagnosis Code Table”.

Repaired by:

C : Corrected by customer E : Corrected by service

engineer

3 2C

Block

Indicates the appropriate step to be taken. E.g.

13 ....Format the “Memory Stick Duo”.

32 ....Turn on power again.

1-2-2. Self-diagnosis Display

When problems occur while the unit is operating, the LCD screen shows a 4-digit display consisting of an alphabet and numbers, which blinks at 3.2 Hz. This 5-character display indicates the “repaired by:”, “block” in which the problem occurred, and “detailed code” of the problem.

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1-1

1-2-3. Self-diagnosis Code Table

Self-diagnosis Code

Function

Repaired by:

Block

Detailed

Code

Symptom/State

The internal memory has experienced a format error.

“Memory Stick Duo” is unformatted. “Memory Stick Duo” is broken. “Memory Stick Duo” type error The camera cannot read or write data

on the “Memory Stick Duo”. Trouble with hardware

Format the internal memory. Format the “Memory Stick Duo”.

Insert a new “Memory Stick Duo”. Insert a supported “Memory Stick Duo”. Turn the power off and on again, or taking out and inserting the

“Memory Stick Duo” several times. Turn the power off and on again. Retry turn the power on by the power switch. If it does not

Difficult to adjust focus (Cannot initialize focus)

recover, check the focus reset sensor of lens block (pin ws of CN402 on the SY-169 board). If it is OK, check the focus motor drive IC (IC401 on the SY-169 board).

Retry turn the power on by the power switch. Check the zoom reset sensor of lens block (pin ra of CN402 on the SY-169 board) when zooming is performed when the zoom button is operated. If it is OK, check the zoom motor drive IC (IC401 on

Zoom operations fault (Cannot initialize zoom lens.)

the SY-169 board).

Abnormality of IC for steadyshot.

Lens initializing failure.

Check or replacement of the IC for steadyshot (IC503 on the SY169 board).

Check the HALL element (PITCH) of optical image stabilizer

Lens overheating (PITCH).

(pin 5, 6 of CN402 on the SY-169 board). If it is OK, check PITCH angular velocity sensor (SE502 on the SY-169 board) peripheral circuits.

Check the HALL element (YAW) of optical image stabilizer (pin

Lens overheating (YAW).

ql, w; of CN402 on the SY-169 board). If it is OK, check YAW angular velocity sensor (SE501 on the SY-169 board) peripheral circuits.

E E

62 91

20 01

Abnormality of thermistor. Abnormality when flash is being charged.

Non-standard battery is used.

Check the OIS temp sensor of optical image stabilizer (pin 4 of CN402 on the SY-169 board).

Checking of flash unit or replacement of flash unit. (Note) Use the compatible battery only.

Note: After repair, be sure to perform “1-3. PROCESS AFTER FIXING FLASH ERROR”.

Correction

1-3. PROCESS AFTER FIXING FLASH ERROR

When “FLASH error” (Self-diagnosis Code E : 91 : 01) occurs, to prevent any abnormal situation caused by high v oltage, setting of the flash is changed automatically to disabling charge and flash setting. After fixing, this setting needs to be deactivated. Flash error code can be initialized by the operations on the HOME screen.

Method for Initializing the Flash Error Code

Initialize

Initializes the setting to the default setting. Even if you execute this function, the images stored in the internal memory are retained.

1 Select [Initialize] with v/V/b/B, then press z.

The message “Initialize all settings” appears.

2 Select [OK] with v, then press z.

The settings are reset to the default setting.

To cancel the resetting

Select [Cancel] in step 2, then press z.

•Make sure that the power is not disconnected during resetting.

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1-2

1-4. METHOD FOR COPYING OR ERASING THE DATA IN INTERNAL MEMORY

The data can be copied/erased by the operations on the HOME screen. (When erasing the data, execute formatting the internal memory.)

Note 1: When replacing the SY-169 board, erase the data in internal memory of the board before replacement. Note 2: When replacing the SY-169 board, execute formatting and initialize the internal memory after replacement.

Method for Copying the Data in Internal Memory

Copy

Copies all images in the internal memory to a “Memory Stick Duo”.

1 Insert a “Memory Stick Duo” having 32 MB or larger capacity. 2 Select [Copy] with v/V/b/B on the control button, then press z.

The message “All data in internal memory will be copied” appears.

3 Select [OK] with v, then press z.

Copying starts.

To cancel the copying

Select [Cancel] in step 3, then press z.

•Use a fully charged battery pack. If you attempt to copy image files using a battery pack with little remaining charge, the battery pack may run out, causing copying to fail or possibly corrupting the data.

•You cannot copy individual images.

•The original images in the internal memory are retained even after copying. To delete the contents of the internal memory, remove the “Memory Stick Duo” after copying, then execute the [Format] command in [Internal Memory Tool].

•When you copy the data in the internal memory to the “Memory Stick Duo”, all the data will be copied. You cannot choose a specific folder on the “Memory Stick Duo” as the destination for the data to be copied.

•Even if you copy data, a (Print order) mark is not copied

Method for Formatting the Internal Memory

This item does not appear when a “Memory Stick Duo” is inserted in the camera.

Format

Formats the internal memory.

•Note that formatting irrevocably erases all data in the internal memory, including even protected images.

1 Select [Format] with v/V/b/B on the control button, then press z.

The message “All data in internal memory will be erased” appears.

2 Select [OK] with v, then press z.

The format is completed.

To cancel the formatting

Select [Cancel] in step 2, then press z.

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1-3

1-5. HOW TO WRITE DATA TO INTERNAL MEMORY

Usually, the camera has been set so as to disable the data writing from the PC to the internal memory of the camera. This setting must be changed temporarily when the data is to be written to the internal memory such as a case after the board replacement. To change the setting, use the write enable tool “WriteEnableTool.exe”.

Data writing method

1) Connect the PC to the camera (USB mode: Mass Storage), and switch the driver to the “Sony Seus USB Driver”.

2) Start the Write Enable Tool and the SeusEX.

3) Click the [Activate Write Enable Mode] button of the Write Enable Tool.

4) Upon completion of the setting change, the following message will be displayed.

5) Return the driver to the original one, and connect the PC to the camera (USB mode: Mass Storage).

6) Write the data read out into the PC to the internal memory of the camera.

7) Disconnect the PC from the camera, and turn off the camera.

Note: By turning off the camera, the write enable setting is reset.

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1-4E

NOTE FOR REPAIR

2. DISASSEMBLY

• 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.

• When remove a connector, don’t pull at wire of connector. It is possible that a wire is snapped.

• When installing a connector, don’t press down at wire of connector. It is possible that a wire is snapped.

• Do not apply excessive load to the gilded fle xible board.

Cut and remove the part of gilt which comes off at the point. (Be careful or some pieces of gilt may be left inside)

DISCHARGING OF THE ST-160 BOARD’S CHARGING CAPACITOR (C901)

The charging capacitor (C901) of the ST-160 board 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 unit 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.

Note: High-voltage cautions

Discharging the Capacitor

Short-circuit between the two points with the short jig about 10 seconds.

R:1 kΩ/1 W (Part code: 1-215-869-11)

C901

ST-160 Board

1 kΩ/1 W

Wrap insulating tape.

Flash Unit

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2-1

2-1. IDENTIFYING PARTS

Release Block

⋅ RL-071/078 Board

BT Holder

MC-176 Board

SY-169 Board

SW-494 Board

Cabinet (Rear)

LCD Module

Main Frame

Cabinet (Front)

- DISASSEMBLY FLOW -

2-2-1. CABINET SECTION

⋅ Cabinet (Front) ⋅ Cabinet (Rear)

2-2-2. MAIN BOARD SECTION

⋅ Lens Block ⋅ MC-176 Board ⋅ Release Block ⋅ SY-169 Board

2-2-3. LCD/BT HOLDER SECTION

⋅ BT Holder ⋅ Flash Unit ⋅ LCD Module ⋅ Main Frame ⋅ SW-494 Board

Flash Unit

⋅ ST-160 Board

2-3. EXCHANGE METHOD OF

BARRIER BLOCK

Lens Block

⋅ Barrier Block ⋅ Zoom Gear Block

2-4. EXCHANGE METHOD OF

ZOOM GEAR BLOCK

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2-2

EXPLODED VIEW

HELP

2-2. DISASSEMBLY

2-2-1. CABINET SECTION

Follow the disassembly in the numerical order given.

1 Cabinet (Front) (1-1 to 1-8) 2 Cabinet (Rear) (2-1 to 2-2)

Note:On installation of the cabinet (rear),

adjust the position of the mode dial switch and the mode dial.

1-6 (#65)

1-7 (Open)

HARDWARE LIST

2-1 (#65)

HELP

1-5 (#65)

1-8 (Claw)

Main Board Section

(See Page 2-4)

1 Cabinet (Front)

1-4 (#65)

2 Cabinet

(Rear)

2-2 (#65)

1-1 (#65)

1-3

1-2 (Claw)

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2-3

EXPLODED VIEW

2-2-2. MAIN BOARD SECTION

Follow the disassembly in the numerical order given.

1 Release Block (1-1 to 1-3) 2 Lens Block (2-1 to 2-5) 3 SY-169 Board (3-1 to 3-11)

HARDWARE LIST

Note: High-voltage cautions

Discharging the Capacitor

Short-circuit between the two points with the short jig about 10 seconds.

R:1 kΩ/1 W (Part code: 1-215-869-11)

1 Release Block

1-3

1-2

(Claw)

HELP

3-7 (Claw)

3-11

3-6

1-1

3-1

3-2

C901

ST-160 Board

Flash Unit

LCD/BT Holder Section

(See Page 2-5)

2-3 (Release the claw that is the fixation of the flash unit once)

3-5 (#3)

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SY-169

3-3

3-4

(Solder)

HELP

3-10

3 SY-169 Board

3-8

(#5)

2-1 (Claw)

3-9

2-2

2-4

2-5

2 Lens Block

(See Page 2-6, 2-8)

2-4

EXPLODED VIEW

2-2-3. LCD/BT HOLDER SECTION

Follow the disassembly in the numerical order given.

1 Flash Unit (1-1) 2 LCD Panel/SW-494 Board (2-1 to 2-4) 3 BT Holder (3-1 to 3-3)

HELP

2-1 (#5)

HARDWARE LIST

2 LCD Panel/

SW-494 Board

SW-494

2-4 (Claw)

1 Flash Unit

3-2

2-3

(Claw)

HELP

3-1 (#65)

2-2

(Claw)

HELP

3-3

1-1

(Claw)

3 BT Holder

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2-5

2-3. EXCHANGE METHOD OF BARRIER BLOCK

Note: Do not hold the part of spring.

2-3-1. HOW TO REMOVE THE ORNAMENTAL RING (A)

1 Turn on the power switch. 2 With the ornamental ring (A) extended, remove the battery forcibly. 3 Apply a solvent to the tweezers or a needle, and dissolve the adhesive on

the barrier tapes that secure the ornamental ring (A) to the barrier block.

4 Rotate the ornamental ring (A) clockwise to remove.

Tweezers

Barrier tape

3 Solvent

2-3-2. HOW TO REMOVE THE BARRIER BLOCK

1 Remove two screws. 2 Remove the barrier block and the inner ring.

2 Barrier block

4 Ornamental ring (A)

Barrier block

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2 Inner ring

1 Two screws

2-6

2-3-3. HOW TO INSTALL THE BARRIER BLOCK

1 Install the inner ring and the barrier block.

Note: When installing the barrier block, the CAV No. must be located in the lower left position.

2 Secure the barrier block with two screws.

*Tightening torque = 0.049 ± 0.01N • m (0.5 ± 0.1kgf • cm)

Note: Check that the barrier feather of the barrier block is not opened slightly or half-closed.

Barrier

1 Barrier block

feather

CAV No.

2 Two screws

2-3-4. HOW TO INSTALL THE ORNAMENTAL RING (A)

1 Affix two barrier tapes to the barrier block.

Note: The barrier tape must not cover the boss of the barrier block.

2 Install the ornamental ring (A).

1 Inner ring

1 Barrier tape

Boss

2 Ornamental ring (A)

Note: Turn on and off the power to check the opening and closing of the barrier block with the camera

in horizontal, up and down directions respectively. Further, check the zoom motion. Rotate the ornamental ring (A) lightly to check that it is not removed.

Barrier block

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2-7

1 Barrier tape

2-4. EXCHANGE METHOD OF ZOOM GEAR BLOCK

Note: Do not hold the part of terminal and the part of spring.

2-4-1. HOW TO REMOVE THE ZOOM GEAR BLOCK

• HOW TO REMOVE THE REAR ASSEMBLY

1 Remove the screw, and then the OVF.

OVF

Screw

2 Remove the shutter flexible board from the connector. 3 Remove the vibration-proof flexible board from the connector. 4 Peel the adhesive sheet that secures the vibration-proof flexible board.

*When peeling the adhesive sheet, turn it over from the opposite side of the hook.

Connector

2 Shutter flexible board

Connector

3 Vibration-proof flexible board

Vibration-proof flexible board

4 Adhesive

sheet

Hook

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2-8

5 Peel the adhesive sheet (upper) that secures the main flexible board. 6 Disengage the main flexible board from the hook of the ring assembly, and then slide the main flexible board

to remove.

7 Peel the adhesive sheet (lower) that secures the main flexible board.

*The FOCUS motor must remain soldered.

6 Main flexible board

Hook

Ring assembly

5 Adhesive sheet (upper)

7 Adhesive sheet (lower)

Solder of FOCUS motor

8 Remove four screws that secure the rear assembly. 9 Remove the rear assembly, disengaging the bosses at four places.

*Take care not to get stuck with the vibration-proof flexible board.

q; Unhook the Z leaf spring to remove. qa Remove the main flexible board from the ring assembly, and remove the rear assembly and the nuruto gear.

qa Nuruto gear

8 Five screws

Rear assembly

Hook

q; Z leaf

Boss

Ring assembly

spring

Boss

Ring assembly

qa Rear assembly

qa Main flexible

Vibration-proof flexible board

board

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2-9

• HOW TO REMOVE THE ZOOM GEAR BLOCK

1 Unsolder the zoom motor. 2 Remove the FG leaf spring. 3 Remove the main flexible board from the zoom gear block. 4 Remove the zoom gear block.

Rear assembly

3 Main flexible board

4 Zoom gear block

3 Main flexible board

1 Solder

Hook

2 FG leaf spring

2-4-2. HOW TO INSTALL THE ZOOM GEAR BLOCK

• HOW TO INSTALL THE ZOOM GEAR BLOCK

1 Solder the main flexible board to the zoom gear block. 2 Install the main flexible board to the zoom gear block. 3 Attach the FG leaf spring.

Rear assembly

2 Main flexible board

Zoom gear block

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1 Solder

2 Main flexible board

Hook

3 FG leaf spring

2-10

4 Apply the lubricant (SRX-4339) to the nuruto gear, and insert it into the ring assembly.

* Rotate the gear in the ring assembly in the arrow direction until the end of the gear is not engaged

with a concave portion of the ring assembly (because a convex portion of the rear assembly enters the convex portion).

Ring assembly

Gear

Convex portion

4 Nuruto gear

5 Install the zoom gear block on the rear assembly. 6 Engaging four bosses, install the rear assembly on the ring assembly.

*The vibration-proof flexible board must be engaged with the hook of the rear assembly.

7 Tighten four screws in the order of A to D.

*Tightening torque = 0.049 ± 0.01N • m (0.5 ± 0.1kgf • cm)

8 Check that the projection of the nuruto shaft that protrudes from the rear assembly is within the

specified value given below. *Specified value: 0.005 – 0.395mm

Hook

Ring assembly

Boss

6 Vibration-proof

flexible board

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Boss

Nuruto shaft

5 Zoom gear block

6 Rear assembly

Nuruto shaft

0.005 – 0.395mm

2-11

7 Four screws

+ 39 hidden pages