DSC-T20, DSC-T20HDPR, DSC-T25 (serv.man2) - Sony Digital Camera Service Manual (repair manual)

Model
DSC-T20 DSC-T20HDPR DSC-T25 (serv.man2)
Pages
51
Size
2.07 MB
Type
PDF
Document
Service Manual
Brand
Device
Digital Camera / LEVEL 2
File
dsc-t20-dsc-t20hdpr-dsc-t25-sm2.pdf
Date

View Sony DSC-T20 / DSC-T20HDPR / DSC-T25 (serv.man2) Service Manual online

SERVICE MANUAL
LEVEL
 
2
Link
DISASSEMBLY
SERVICE NOTE
SPECIFICATIONS
SCHEMATIC DIAGRAMS
FRAME SCHEMATIC DIAGRAM
BLOCK DIAGRAMS
REPAIR PARTS LIST
PRINTED WIRING BOARDS
Link
Revision History
Revision History
How to use
Acrobat Reader
How to use
Acrobat Reader
Sony EMCS Co.
DSC-T20/T25_L2
Internal memory
ON BOARD
Internal memory
ON BOARD
Ver. 1.5  2008.10
DIGITAL STILL CAMERA
2008J0800-1
  © 2008.10
Published by Kohda TEC
9-852-195-32
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Hong Kong Model
Chinese Model
Korea Model
Argentine Model
Brazillian Model
Japanese Model
Tourist Model
The components identified by
mark  0  or dotted line with
mark 0 are critical for safety.
Replace only with part num-
ber specified.
Les composants identifiés par une
marque  0  sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
• Precaution on Replacing the SY-170 Board
DSC-T20/T25
Photo: Silver
Revised-1
— 2 —
DSC-T20/T25_L2
SPECIFICATIONS
Camera
[System]
Image device: 7.18 mm (1/2.5 type) color CCD, 
Primary color filter
Total pixel number of camera: 
Approx. 8286 000 pixels
Effective pixel number of camera: 
Approx. 8083 000 pixels
6.33 – 19.0 mm (38 – 144 mm when 
converted to a 35 mm still camera) F3.5 – 4.3
Exposure control: Automatic exposure, Scene 
Selection (9 modes)
White balance: Automatic, Daylight, Cloudy, 
Fluorescent 1, Fluorescent 2, Fluorescent 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 (Recommended Exposure
approx. 0.25 to 2.5 m (9 7/8 inches to 8
feet 2 1/2 inches) (T)
[Input and Output connectors]
Multi connector
Video output
Audio output (mono)
USB communication: Hi-Speed USB (USB 2.0 
compliant)
[LCD screen]
LCD panel: 6.2 cm (2.5 type) TFT drive
[Power, general]
Power: Rechargeable battery pack NP-BG1, 3.6 V
AC-LS5K AC Adaptor (not supplied), 4.2 V
Power consumption (during shooting): 1.0 W
Operating temperature: 0 to 40
°
C (32 to 104
°
F)
Storage temperature: –20 to +60
°
C (–4 to +140
°
F)
protrusions)
Mass: Approx. 159 g (5.6 oz) (including NP-BG1 
battery pack and wrist 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, 
2 W (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)
Mass: Approx. 75 g (2.7 oz)
Rechargeable battery pack NP-BG1
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.
Lens: Carl Zeiss Vario-Tessar 3
×
 zoom lens f =
Total number of dots: 230 400 (960
×
240) dots
Dimensions: 89.7
×
55.7
×
22.8 mm (3 5/8
×
 
2 1/4
×
29/32 inches) (W/H/D, excluding
Dimensions: Approx. 62
×
24
×
91 mm (2 1/2
×
 
31/32
×
3 5/8 inches) (W/H/D)
Index) set to Auto): approx. 0.1 to 3.0 m 
(4 inches to 9 feet 10 1/8 inches) (W)/
— 3 —
DSC-T20/T25_L2
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES 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.
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.
Unleaded solder
Boards requiring use of unleaded solder are printed with the lead-
free 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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Model
Destination
DSC-T20
US, CND, AEP, UK, E, AUS,
HK, CH, KR, AR, BR, J, JE
DSC-T25
AEP, E, AUS, HK
• Abbreviation
AR : Argentine model
AUS: Australian model
BR : Brazilian model
CH : Chinese model
CND: Canadian model
EE : East European model
HK : Hong Kong model
J
: Japanese model
JE
: Tourist model
KR : Korea model
NE : North European model
TW : Taiwan model
Model information table
— 4 —
DSC-T20/T25_L2
TABLE OF CONTENTS
1.
SERVICE NOTE
1-1.
Precaution on Replacing the SY-170 Board ···················· 1-1
1-2.
Self-Diagnosis Function ·················································· 1-1
1-3.
Process After Fixing Flash Error ····································· 1-2
1-4.
Method for Copying or Erasing the Data in Internal
Memory ··········································································· 1-3
1-5.
How to Write Data to Internal Memory ·························· 1-4
2.
DISASSEMBLY
2-1.
Disassembly ····································································· 2-2
3.
BLOCK DIAGRAMS
3-1.
Overall Block Diagram (1/2) ··········································· 3-1
3-2.
Overall Block Diagram (2/2) ··········································· 3-2
3-3.
Power Block Diagram ····················································· 3-3
3-4.
Power Block Diagram ····················································· 3-4
4.
PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1.
Frame Schematic Diagram ·············································· 4-1
4-2.
Schematic Diagrams ························································ 4-2
4-3.
Printed Wiring Boards ··················································· 4-16
5.
REPAIR  PARTS  LIST
5-1.
Exploded Views ······························································· 5-2
5-2.
Electrical Parts List ························································· 5-5
Section
Title
Page
1-1
ENGLISH
JAPANESE
ENGLISH
JAPANESE
DSC-T20/T25_L2
1. SERVICE  NOTE
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.
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.
0 0
3 2
C
Repaired by:
Refer to “1-2-3. Self-diagnosis Code Table”.
Indicates the appropriate
step to be taken.
E.g.
13 ....Format the “Memory Stick Duo”.
32 ....Turn on power again.
Block
Detailed Code
Blinks at 3.2 Hz
C : Corrected by customer
E : Corrected by service
engineer
LCD screen
1-1. PRECAUTION  ON  REPLACING  THE  SY-170  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
ENGLISH
JAPANESE
ENGLISH
JAPANESE
DSC-T20/T25_L2
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 voltage, 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
1-2-3. Self-diagnosis Code Table
C
C
E
E
E
E
E
E
E
E
E
Block
Function
1
3
3
2
6
1
6
1
6
2
6
2
6
2
6
2
6
2
9
1
9
2
Detailed
Code
0
1
0
1
0
0
1
0
0
2
1
0
1
1
1
2
2
0
0
1
0
0
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
Difficult to adjust focus
(Cannot initialize focus)
Zoom operations fault
(Cannot initialize zoom lens.)
Abnormality of IC for steadyshot.
Lens initializing failure.
Lens overheating (PITCH).
Lens overheating (YAW).
Abnormality of thermistor.
Abnormality when flash is being charged.
Non-standard battery is used.
Self-diagnosis Code
Repaired b
y:
Correction
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
recover, check the focus reset sensor of lens block (pin ea of
CN401 on the SY-170 board). If it is OK, check the focus motor
drive IC (IC401 on the SY-170 board).
Retry turn the power on by the power switch. Check the zoom
reset sensor of lens block (pin wk of CN401 on the SY-170
board), if zooming is performed when the zoom button is
operated. If it is OK, check the zoom motor drive IC (IC401 on
the SY-170 board).
Check or replacement of the IC for steadyshot (IC503 on the SY-
170 board).
Check or replacement of the IC for steadyshot (IC503 on the SY-
170 board).
Check the HALL element (PITCH) of optical image stabilizer
(pin 1, 2 of CN401 on the SY-170 board). If it is OK, check
PITCH angular velocity sensor (SE502 on the SY-170 board)
peripheral circuits.
Check the HALL element (YAW) of optical image stabilizer (pin
6
, 7 of CN401 on the SY-170 board). If it is OK, check YAW
angular velocity sensor (SE501 on the SY-170 board) peripheral
circuits.
Check the OIS temp sensor of optical image stabilizer (pin 5 of
CN401 on the SY-170 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”.
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.
Initialize
1-3
ENGLISH
JAPANESE
ENGLISH
JAPANESE
DSC-T20/T25_L2
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-170 board, erase the data in internal memory of the board before replacement.
Note 2:
When replacing the SY-170 board, execute formatting and initialize the internal memory after replacement.
Method for Copying the Data in Internal Memory
Method for Formatting the Internal Memory
This item does not appear when a “Memory Stick Duo” is inserted in the camera.
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.
Format
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 DPOF (Print order) mark is not copied.
Copy
1-4
ENGLISH
JAPANESE
ENGLISH
JAPANESE
DSC-T20/T25_L2
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.
1-5
ENGLISH
JAPANESE
ENGLISH
JAPANESE
DSC-T20/T25_L2
1. SERVICE  NOTE
1-1. SY-170基板交換時の注意
仕向けデータ
補修用基板と交換する時,補修用基板に書かれている仕向けデータは元の設定と違っている場合があります。
ADJ編を参照して,「DESTINATION DATA WRITE」を行ってください。
USBシリアルNo.
セットは,1台毎に異なる固有のID(USB Serial No.)を書き込んだ後,出荷されています。
新品の補修用基板には,このIDが書き込まれていないので,基板交換後にIDを入力する必要があります。
ADJ編を参照して,「USB SERIAL No. INPUT」を行ってください。
1-2. 自己診断機能
1-2-1. 自己診断機能について
本機の動作に不具合が生じたとき,自己診断機能が働き,
L C D 画面に,どう処置したらよいか判断できる表示を行い
ます。自己診断機能については取扱説明書にも掲載されて
います。
1-2-2. 自己診断表示
本機の動作に不具合が生じたとき,LCD画面にアルファベッ
トと4桁の数字が表示され,3.2Hzで点滅します。この5文字
の表示によって対応者分類および不具合の生じたブロックの
分類,不具合の詳細コードを示します。
0 0
3 2
C
対応者分類 
「1 -2 -3 .  自己診断コード表」 
を参照 
対応方法の違いにより分類 
例 
 
13 ・・ ・“メモリースティック
 
 
32 ・・ ・電源を入れ直す 
ブロック分類 
詳細コード 
3.2Hz点滅 
C  :お客さま自身で対応 
E  :サービスエンジニア 
 
で対応 
デュオ”をフォーマッ 
トする 
LCD画面 
C : 3 2 : 00
1-6
DSC-T20/T25_L2
ENGLISH
JAPANESE
ENGLISH
JAPANESE
1-2-3. 自己診断コード表
C
C
E
E
E
E
E
E
E
E
E
ブロック
機能
1
3
3
2
6
1
6
1
6
2
6
2
6
2
6
2
6
2
9
1
9
2
詳細
コード
0
1
0
1
0
0
1
0
0
2
1
0
1
1
1
2
2
0
0
1
0
0
症状/状態
内蔵メモリにフォーマットエラーが
あった。
フォーマットしていない“メモリー
スティック デュオ”を入れた。
“メモリースティック デュオ”が
壊れている。
“メモリースティック デュオ”の
タイプエラーを検出した。
“メモリースティック デュオ”が
読み/書きできない。
ハードウェアトラブルを検出した。
フォーカスが合いにくい。
(フォーカスの初期化ができない)
ズーム動作の異常。
(ズームレンズの初期化ができな
い)
手振れ補正用ICの異常。
手振れ補正用ICの異常。
(レンズ初期化異常)
レンズオーバーヒート(PITCH)
レンズオーバーヒート(YAW)
サーミスタの異常。
フラッシュの充電異常。
規定外の充電池が使用された。
自己診断コード
対応/方法
内蔵メモリをフォーマットする。
“メモリースティック デュオ”をフォーマットする。
新しい“メモリースティック デュオ”に交換する。
規格内の“メモリースティック デュオ”を挿入する。
電源の入れ直し,または“メモリースティック デュオ”
の挿し/外しを数回試す。
電源を入れ直す。
操作スイッチの電源を入れ直す。
復帰しない場合はレンズブロックのフォーカスリセットセ
ンサ(SY-170基板CN401 eaピン)を点検する。異常なけ
ればフォーカスモータ駆動IC(SY-170基板IC401)を点検
する。
操作スイッチの電源を入れ直す。
ズームボタンを操作したときにズーム動作をすればレンズ
ブロックのズームリセットセンサ(SY-170基板CN401 wk
ピン)を点検する。異常なければズームモータ駆動IC
(SY-170基板IC401)を点検する。
手振れ補正用IC(SY-170基板IC503)を点検または交換す
る。
手振れ補正用IC(SY-170基板IC503)を点検または交換す
る。
光学手振れ補正ブロックのホール素子(PITCH)(SY-170
基板CN401 1,2ピン)を点検する。異常なければ
PITCH角速度センサ(SY-170基板SE502)周辺の回路を点
検する。
光学手振れ補正ブロックのホール素子(YAW)(SY-170
基板CN401 6,7ピン)を点検する。異常なければYAW
角速度センサ(SY-170基板SE501)周辺の回路を点検す
る。
光学手振れ補正ブロックのサーミスタ(SY-170基板CN401
5
ピン)を点検する。
フラッシュユニットを点検または交換する。(Note)
規定の充電池を使用する。
Note:交換後は,必ず「1-3. フラッシュ異常修理後の処置」を行って下さい。

Download Sony DSC-T20 / DSC-T20HDPR / DSC-T25 (serv.man2) Service Manual (Repair Manual)

Here you can view online and download Sony DSC-T20 / DSC-T20HDPR / DSC-T25 (serv.man2) Service Manual in PDF. DSC-T20 / DSC-T20HDPR / DSC-T25 (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony DSC-T20 / DSC-T20HDPR / DSC-T25 (serv.man2) Digital Camera. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.