Sony DSC-U20 Service Manual
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Sony DSC-U20 Service Manual

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SERVICE MANUAL
Ver 1.0 2002. 10
Revision History
Revision History
Link
Link
SPECIFICATIONS
SPECIFICATIONS
SERVICE NOTE
SERVICE NOTE
DISASSEMBLY
DISASSEMBLY
• For ADJUSTMENTS (SECTION 6), refer to SERVICE MANUAL, ADJ (987621251.pdf).
• For INSTRUCTION MANUAL, refer to SERVICE MANUAL, LEVEL 1 (987621241.pdf).
• Reference No. search on printed wiring boards is available.
On the DD-182, PD-174 and TY-15 boards
This service manual provides the information that is premised the circuit board replacement service and not intended repair
inside the DD-182, PD-174 and TY-15 boards.
Therefore, schematic diagram, printed wiring board, waveforms, mounted parts location and electrical parts list of the DD-182,
PD-174 and TY-15 boards are not shown.
The following pages are not shown.
Schematic diagram ........................... Pages 4-11 to 4-24
Printed wiring board .......................... Pages 4-39 to 4-44
Waveforms .......................................... Pages 4-58 and 4-59
DSC-U20
Photo: SILVER model
BLOCK DIAGRAMS
BLOCK DIAGRAMS
FRAME SCHEMATIC DIAGRAMS
FRAME SCHEMATIC DIAGRAMS
SCHEMATIC DIAGRAMS
SCHEMATIC DIAGRAMS
Mounted parts location ...................... Pages 4-61 and 4-62
Electrical parts list ............................ Pages 5-7, 5-8, 5-10,
US Model
Canadian Model
AEP Model
UK Model
Hong Kong Model
Australian Model
Chinese Model
Korea model
Tourist Model
Japanese Model
PRINTED WIRING BOARDS
PRINTED WIRING BOARDS
REPAIR PARTS LIST
REPAIR PARTS LIST
DIGITAL STILL CAMERA
2
LEVEL
E Model
5-12 to 5-14

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Summary of Contents for Sony DSC-U20

  • Page 1 DSC-U20 SERVICE MANUAL LEVEL US Model Ver 1.0 2002. 10 Canadian Model Revision History Revision History AEP Model UK Model E Model Hong Kong Model Australian Model Chinese Model Korea model Tourist Model Photo: SILVER model Japanese Model Link Link...

  • Page 2: Specifications

    DSC-U20 COVER COVER SPECIFICATIONS System BC-CS1 Ni-MH battery charger Image device 6.72 mm (1/2.7 type) color CCD Power requirements Primary color filter AC 100 to 240V 50/60Hz 2.2 W Total pixels number of camera Approx. 2 110 000 pixels Output voltage Size AA: DC 1.8V, 165 mA ×...
  • Page 3 CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.

  • Page 4: Table Of Contents

    DSC-U20 TABLE OF CONTENTS Section Title Page SERVICE NOTE 1-1. Note for Repair ································································ 1-1 1-2. Discharging of the SL-59 Flexible Board’s Charging Capacitor (C601) ············································· 1-1 1-2-1. Preparing the Short Jig ···················································· 1-1 1-2-2. Discharging the Capacitor ··············································· 1-1 1-3.

  • Page 5: Service Note

    DSC-U20 SECTION 1 COVER COVER SERVICE NOTE 1-1. NOTE FOR REPAIR When remove a connector, don’t pull at wire of connector. Make sure that the flat cable and flexible board are not cracked of It is possible that a wire is snapped.

  • Page 6: Description On Self-Diagnosis Display

    1-3. DESCRIPTION ON SELF-DIAGNOSIS DISPLAY Self-diagnosis display • C: ss: ss You can reverse the camera malfunction yourself. (However, contact your Sony dealer or local authorized Sony service facility when you cannot recover from the camera malfunction.) • E: ss: ss Contact your Sony dealer or local authorized Sony service facility.

  • Page 7: Disassembly

    DSC-U20 SECTION 2 COVER COVER DISASSEMBLY The following flow chart shows the disassembly procedure. DSC-U20 2-1. CABINET (FRONT) 2-2. OP-17 FLEXIBLE BOARD ASSEMBLY (Page 2-2) (Page 2-2) 2-3. CABINET (REAR) ASSEMBLY (Page 2-3) 2-4. BOTTOM FRAME ASSEMBLY (Page 2-3) 2-5. TY-15 BOARD (Page 2-4) 2-6.

  • Page 8: Cabinet (Front) Assembly

    DSC-U20 Note: Follow the disassembly procedure in the numerical order given. 2-1. CABINET (FRONT) ASSEMBLY 1 Open battery lid. 2 Screw (lock ace) 4 Claw 7 Flexible board (CN001) 5 Claw Note: Remove it while taking care as the flexible board is connected.

  • Page 9: Cabinet (Rear) Assembly

    DSC-U20 2-3. CABINET (REAR) ASSEMBLY 5 Cabinet (rear) assembly 1 Open battery lid. 2 Screw (lock ace) 4 Claw 3 Two screws (lock ace) 2-4. BOTTOM FRAME ASSEMBLY BOTTOM VIEW Bottom frame assembly Flexible board (SL-59) 7 Screw (M1.7) 5 Flexible board (CN908)

  • Page 10: Board

    DSC-U20 2-5. TY-15 BOARD 7 Flexible boards (CN907) qa TY-15 board 3 Flexible boards (CN904) 4 Sheet (USB) 8 Flexible boards (CN903) 2 Flexible board (FP-532) (CN901) 0 Flexible board (SW-376) (CN906) 9 Flexible board (CD-425) (CN902) 1 Sheet (TY) 5 Screw (M1.7)

  • Page 11: Pd-174 Board

    DSC-U20 2-7. PD-174 BOARD FP-533 flexible board 1 Screw (M1.7) 9 Flexible board (CN402) 6 Connector (CN401) PD-174 board qa PD-174 board Note: When installing FP-533 flexible board, set it as shown in the figure. 3 Claw 0 LCD (ACX711AKM-2)

  • Page 12: Cabinet (Upper) Assembly

    DSC-U20 2-9. CABINET (UPPER) ASSEMBLY 7 Boss 9 Connector (memory stick connector) qa Cabinet (upper) assembly 3 Screw (lock ace) 5 Claw 1 Sheet, lens 4 Claw FP-533 flexible board 0 Memory stick connector 2-10.SL-59 FLEXIBLE BOARD 2 Screw (M1.7)

  • Page 13: Ccd Block Assembly

    DSC-U20 2-11.CCD BLOCK ASSEMBLY 2 Screw (M1.7) 3 CCD block assembly 1 Protection sheet (SL) 2-12.DD-182 BOARD 3 Screw (M1.7) 6 DD-182 board 2 Remove two solders. 1 FP-532 flexible board 5 Claw...

  • Page 14: Service Position

    DSC-U20 [SERVICE POSITION] Insert the Memory Stick and the Batteries to DSC-U20, and connect the HASP key to USB connector of PC. The following setup is performed using the application for adjustment (SEUS). Setting the “Forced STILL/PLAY mode Power ON” mode Exiting the “Forced Power ON mode”...

  • Page 15: Circuit Boards Location

    DSC-U20 2-13.CIRCUIT BOARDS LOCATION PD-174 SW-376 FLEXIBLE DD-182 SL-59 FLEXIBLE (Including ST-79) US-4 FLEXIBLE CD-425 FLEXIBLE TY-15 OP-17 FLEXIBLE Board Name Function CD-425 FLEXIBLE CCD IMAGER, CAMERA MODULE TY-15 CAMERA DSP, MAIN CPU, MEMORY, LENS DRIVE, HI CONTROL OP-17 FLEXIBLE...

  • Page 16: Block Diagrams

    DSC-U20 COVER COVER 3. BLOCK DIAGRAMS Link Link OVERALL BLOCK DIAGRAM (1/2) POWER BLOCK DIAGRAM (1/2) OVERALL BLOCK DIAGRAM (1/2) POWER BLOCK DIAGRAM (1/2) POWER BLOCK DIAGRAM (2/2) OVERALL BLOCK DIAGRAM (2/2) POWER BLOCK DIAGRAM (2/2) OVERALL BLOCK DIAGRAM (2/2)
  • Page 17 DSC-U20 SECTION 3 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER BLOCK DIAGRAMS ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. 3-1. OVERALL BLOCK DIAGRAM (1/2) FP-533 CD-425 FLEXIBLE BOARD...
  • Page 18 DSC-U20 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER 3-2. OVERALL BLOCK DIAGRAM (2/2) ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. TY-15 BOARD (2/2) SW-376 FLEXIBLE BOARD (2/2)
  • Page 19 DSC-U20 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. 3-3. POWER BLOCK DIAGRAM (1/2) DD-182 BOARD (1/2) US-4 TY-15 BOARD...
  • Page 20 DSC-U20 3. BLOCK DIAGRAMS 3. BLOCK DIAGRAMS COVER COVER 3-4. POWER BLOCK DIAGRAM (2/2) ( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located. SL-59 FLEXIBLE BOARD DD-182 BOARD (2/2)

  • Page 21: Printed Wiring Boards And Schematic Diagrams

    DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER SECTION 4 PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 4-1. FRAME SCHEMATIC DIAGRAM FRAME SCHEMATIC DIAGRAM LCD901 PANEL UNIT CN402 LED_A CN002 N.C. BZ901...
  • Page 22 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS COVER COVER 4-2. SCHEMATIC DIAGRAMS THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS (In addition to this, the necessary note is printed in each block) (For schematic diagrams) 1. Connection • All capacitors are in µF unless otherwise noted. pF : µ...

  • Page 23: Schematic Diagrams

    DSC-U20 COVER COVER 4-2. SCHEMATIC DIAGRAMS Link Link CD-425 FLEXIBLE BOARD (1/2) CD-425 FLEXIBLE BOARD (1/2) US-4 FLEXIBLE BOARD US-4 FLEXIBLE BOARD (USB CONNECTOR) (USB CONNECTOR) (CCD IMAGER) (CCD IMAGER) CD-425 FLEXIBLE BOARD (2/2) OP-17 FLEXIBLE BOARD CD-425 FLEXIBLE BOARD (2/2)
  • Page 24 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS CD-425 FLEXIBLE BOARD CD-425 FLEXIBLE BOARD COVER COVER For Schematic Diagram • Refer to page 4-37 for printed wiring board. • Refer to page 4-57 for waveform. CD-425 FLEXIBLE BOARD (1/2) CCD IMAGER(CCD1 BLOCK)
  • Page 25 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS CD-425 FLEXIBLE BOARD CD-425 FLEXIBLE BOARD COVER COVER For Schematic Diagram • Refer to page 4-37 for printed wiring board. CD-425 FLEXIBLE BOARD(2/2) :Voltage measurment of the CSP ICs and the Transistors with mark,are not possible.
  • Page 26 Schematic diagrams of the TY-15, PD-174 and DD-182 boards are not shown. Pages from 4-11 to 4-24 are not shown.
  • Page 27 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS SL-59 FLEXIBLE BOARD SL-59 FLEXIBLE BOARD ST-79 BOARD ST-79 BOARD COVER COVER For Schematic Diagram • Refer to page 4-45 for printed wiring board. (SL-59 FLEXIBLE BOARD) • Refer to page 4-47 for printed wiring board. (ST-74 BOARD)
  • Page 28 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS US-4 FLEXIBLE BOARD OP-17 FLEXIBLE BOARD US-4 FLEXIBLE BOARD OP-17 FLEXIBLE BOARD COVER COVER For Schematic Diagram For Schematic Diagram • Refer to page 4-49 for printed wiring board. • Refer to page 4-51 for printed wiring board.
  • Page 29 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS SW-376 FLEXIBLE BOARD SW-376 FLEXIBLE BOARD COVER COVER For Schematic Diagram • Refer to page 4-53 for printed wiring board. SW-376 FLEXIBLE BOARD SIGNAL PATH VIDEO SIGNAL CONTROL SWITCH,MS CONNECTOR LND024 Y/CHROMA STATIC_GND...
  • Page 30 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS COVER COVER FP-532 FLEXIBLE BOARD RS-85 FLEXIBLE BOARD (PRINTED WIRING BOARD is omitted.) RS-85 FLEXIBLE BOARD is replaced as a block, LND001 ST_UNREG LND101 ST_UNREG so that PRINTED WIRING BOARD is omitted. LND002...
  • Page 31 DSC-U20 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER 4-3. PRINTED WIRING BOARDS THIS NOTE IS COMMON FOR WIRING BOARDS (In addition to this, the necessary note is printed in each block) (For printed wiring boards) • Chip parts.
  • Page 32 DSC-U20 COVER COVER 4-3. PRINTED WIRING BOARDS Link Link CD-425 FLEXIBLE BOARD US-4 FLEXIBLE BOARD CD-425 FLEXIBLE BOARD US-4 FLEXIBLE BOARD SL-59 FLEXIBLE BOARD OP-17 FLEXIBLE BOARD SL-59 FLEXIBLE BOARD OP-17 FLEXIBLE BOARD ST-79 BOARD SW-376 FLEXIBLE BOARD ST-79 BOARD...
  • Page 33 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION MOUNTED PARTS LOCATION COVER COVER CD-425 FLEXIBLE (CCD IMAGER, CAMERA MODULE) For Printed Wiring Board. • :Uses unleaded solder. • CD-425 FLEXIBLE board is 3-layer print board. However, the pattern of layer 2 have not been included in the dia- gram.
  • Page 34 Printed wiring boards of the TY-15, PD-174 and DD-182 boards are not shown. Pages from 4-39 to 4-44 are not shown.
  • Page 35 DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION MOUNTED PARTS LOCATION COVER COVER SL-59 FLEXIBLE (CHARGING CAPACITOR, FLASH UNIT) For Printed Wiring Board. • :Uses unleaded solder. • There are a few cases that the part isn't mounted in this model is printed on this diagram.

  • Page 36: Flash Drive)

    DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION MOUNTED PARTS LOCATION COVER COVER ST-79 (FLASH DRIVE) For Printed Wiring Board. • :Uses unleaded solder. • ST-79 board is 4-layer print board. However, the pattern of layers 2 to 3 have not been included in the diagram.

  • Page 37: Flexible (Usb Connector)

    DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION MOUNTED PARTS LOCATION COVER COVER US-4 FLEXIBLE (USB CONNECTOR) For Printed Wiring Board. • :Uses unleaded solder. • US-4 FLEXIBLE board is 3-layer print board. However, the pattern of layer 2 have not been included in the diagram.

  • Page 38: Printed Wiring Boards

    DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION MOUNTED PARTS LOCATION COVER COVER OP-17 FLEXIBLE (LENS COVER DETECT) For Printed Wiring Board. • :Uses unleaded solder. • There are a few cases that the part isn't mounted in this model is printed on this diagram.

  • Page 39: Flexible

    DSC-U20 4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS MOUNTED PARTS LOCATION MOUNTED PARTS LOCATION COVER COVER SW-376 FLEXIBLE (CONTROL SWITCH, MS CONNECTOR) For Printed Wiring Board. • :Uses unleaded solder. • There are a few cases that the part isn't mounted in this model is printed on this diagram.

  • Page 40: Flexible

    DSC-U20 CD-425 FLEXIBLE BOARD CD-425 FLEXIBLE BOARD COVER COVER 4-4. WAVEFORMS CD-425 FLEXIBLE BOARD 1.2 Vp-p 208 µsec Q302 B REC CD-425 4-57...
  • Page 41 Waveforms of the TY-15 and PD-174 boards are not shown. Pages 4-58 and 4-59 are not shown.

  • Page 42: Mounted Parts Location

    DSC-U20 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER 4-5. MOUNTED PARTS LOCATION no mark : side A * mark : side B CD-425 FLEXIBLE BOARD C301 C302 C303 C305 C306 C307 C309 C310 C313 C314 C315 D301...
  • Page 43 Mounted parts location of the TY-15, PD-174 and DD-182 boards are not shown. Pages 4-61 and 4-62 are not shown.
  • Page 44 DSC-U20 4-3. PRINTED WIRING BOARDS 4-3. PRINTED WIRING BOARDS COVER COVER ST-79 BOARD SW-376 FLEXIBLE BOARD C503 CN001 E-4 C504 C506 D001 C507 D002 C508 D003 C509 D004 C511 D005 D006 D501 D007 D502 D505 R001 R002 L501 R003 R004...
  • Page 45 DSC-U20 5. REPAIR PARTS LIST 5. REPAIR PARTS LIST COVER COVER NOTE: • -XX, -X mean standardized parts, so they may have some differences from When indicating parts by reference number, the original one. please include the board name. •...

  • Page 46: Repair Parts List

    DSC-U20 COVER COVER NOTE NOTE 5. REPAIR PARTS LIST NOTE: Characters A to Z of the electrical parts list indicate location of exploded views in which the desired part is shown. EXPLODED VIEWS EXPLODED VIEWS Link Link CABINET (UPPER) AND...
  • Page 47 DSC-U20 5. REPAIR PARTS LIST 5. REPAIR PARTS LIST COVER COVER 5-1. EXPLODED VIEWS 5-1-1. CABINET SECTION ns: not supplied cabinet (upper) and bottom section (See page 5-2.) - 1 7 Ref. No. Part No. Description Remark Ref. No. Part No.

  • Page 48: Cabinet (Upper) And Bottom Section

    DSC-U20 5. REPAIR PARTS LIST 5. REPAIR PARTS LIST COVER COVER 5-1-2. CABINET (UPPER) AND BOTTOM SECTION ns: not supplied stroboscope and lens section (See page 5-3.) The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety.

  • Page 49: Stroboscope And Lens Section

    DSC-U20 5. REPAIR PARTS LIST 5. REPAIR PARTS LIST COVER COVER 5-1-3. STROBOSCOPE AND LENS SECTION ns: not supplied (Including ST-79 board) battery holder and LCD section (See page 5-4.) IC302 (Note) (Note ) Be sure to read “Precuations for Replacement of CCD Imager”...

  • Page 50: Battery Holder And Lcd Section

    DSC-U20 5. REPAIR PARTS LIST 5. REPAIR PARTS LIST COVER COVER 5-1-4. BATTERY HOLDER AND LCD SECTION ns: not supplied - 1 7 LCD901 BT901 : BT480 (BATTERY, LITHIUM SECONDARY) (Refer to Level-3) The components identified by Les composants identifiés par une...

  • Page 51: Electrical Parts List

    DSC-U20 CD-425 FLEXIBLE 5-2. ELECTRICAL PARTS LIST Ref. No. Part No. Description Ref. No. Part No. Description A-7078-503-A CD-425 FLEXIBLE BOARD, COMPLETE ******************************* (IC302 is not included in this complete board) (Including IC101 (CH-124)) < CAPACITOR > C301 1-115-340-11 CERAMIC CHIP 0.22uF...

  • Page 52: Op-17 Flexible

    DSC-U20 OP-17 FLEXIBLE Ref. No. Part No. Description Ref. No. Part No. Description A-7078-313-A OP-17 FLEXIBLE BOARD, COMPLETE ****************************** < DIODE > D101 8-719-056-53 DIODE MAZS051008SO D102 8-719-074-30 DIODE CL-190UR-CD-T (SELF TIMER) < RESISTOR > R101 1-216-819-11 METAL CHIP 1/16W <...

  • Page 53: Sl-59 Flexible

    DSC-U20 SL-59 FLEXIBLE ST-79 SW-376 FLEXIBLE Ref. No. Part No. Description Ref. No. Part No. Description A-7078-517-A SL-59 FLEXIBLE BOARD, COMPLETE < TRANSFORMER > ***************************** (Including ST-79 board) 0 T502 1-437-987-21 TRANSFORMER, CONVERTER 1-477-336-11 FLASH UNIT < CAPACITOR > A-7078-493-A SW-376 BOARD, COMPLETE...

  • Page 54: Us-4 Flexible

    DSC-U20 US-4 FLEXIBLE Ref. No. Part No. Description Ref. No. Part No. Description A-7078-316-A US-4 FLEXIBLE BOARD, COMPLETE 3-078-812-51 OPERATING INSTRUCTIONS (TRADITIONAL CHINESE, ***************************** SIMPLIFIED CHINESE) < CONNECTOR > (E, HK, CH, JE) 3-078-812-61 OPERATING INSTRUCTIONS CN050 1-816-112-11 CONNECTOR, SQUARE TYPE (USB) 5P (USB)
  • Page 55 DSC-U20 2002J0500-1 Sony EMCS Co. 9-876-212-31 ©2002.10 — 74 — Published by DI Customer Center...

  • Page 56: Revision History

    Reverse 987621231.pdf Revision History S.M. Rev. Ver. Date History Contents issued 2002.10 Official Release — —...

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