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Sony HT-DDW740 Service Manual
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Sony HT-DDW740 Service Manual

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HT-DDW740/DDW840
SERVICE MANUAL
Ver 1.1 2003. 09
• HT-DDW740/DDW840 are composed of following models.
As for the service manual, it is issued for each component
model, then, please refer to them.
COMPONENT MODEL NAME
AMPLIFIER
SUB WOOFER SPEAKER
PACKAGE SPEAKER
CENTER, FRONT SPEAKER
SURROUND SPEAKER
PARTS LIST
Part No.
Description
ACCESSORIES
************
1-477-123-12 COMMANDER, STANDARD (RM-PP411)
1-501-374-11 ANTENNA, LOOP (AM)
1-501-594-11 ANTENNA (FM)(EXCEPT US,CND,E,MX)
0 1-569-008-21 ADAPTOR, CONVERSION 2P (E)
1-751-347-11 CORD, CONNECTION (10m)(FOR SPEAKER)
1-769-329-21 CORD, CONNECTION (PIN-PIN)
1-769-433-61 CORD, SPEAKER (3.5m)(FOR SPEAKER)
0 1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK)
1-793-184-21 CONNECTOR (F TYPE ADAPTOR WITH WIRE)
1-823-135-11 CORD (CONNECTION)(COAXIAL DIGITAL CORD)
• Abbreviation
AR
: Argentina model.
CND : Canadian model.
MX : Mexican model.
MY : Malaysia model.
SP
: Singapore model.
Sony Corporation
9-873-597-02
2003I16-1
Home Audio Company
© 2003.09
Published by Sony Engineering Corporation
HT-DDW740
HT-DDW840
STR-K740P
STR-K840P
SA-WMSP2
SA-WMSP4
SS-CRP2
SS-CNP2
SS-MSP2
Remarks
(INCLUDING BATTERY COVER)
(MONAURAL CORD)
(FM)(US,CND,E,MX)
Canadian Model
Part No.
Description
4-235-191-01 FOOT (SPK)(FOR SS-CNP2/MSP2)
4-235-237-01 FOOT (FOR SA-WMSP2/WMSP4)
4-238-377-11 INSTRUCTION MANUAL (ENGLISH)(EXCEPT MX)
4-238-377-21 INSTRUCTION MANUAL (ENGLISH)
4-238-377-31 INSTRUCTION MANUAL
(SPANISH)(AEP,AR,E,MX,MY,SP)
4-238-377-41 INSTRUCTION MANUAL (CHINESE)(E,MY,SP)
4-238-377-51 INSTRUCTION MANUAL
(GERMAN,DUTCH,SWEDISH)(AEP)
4-238-377-61 INSTRUCTION MANUAL (ITALIAN,POLISH)
4-240-465-11 INSTRUCTION MANUAL (DANISH)(AEP)
4-240-465-21 INSTRUCTION MANUAL (PORTUGUESE)(AEP)
4-240-465-31 INSTRUCTION MANUAL (RUSSIAN)(AEP)
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
FM STEREO FM-AM RECEIVER
US Model
AEP Model
UK Model
E Model
Remarks
(AEP,CND,E,MY,SP)
(AEP)
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.

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  • Page 1 US Model Canadian Model Ver 1.1 2003. 09 AEP Model UK Model • HT-DDW740/DDW840 are composed of following models. E Model As for the service manual, it is issued for each component model, then, please refer to them. COMPONENT MODEL NAME...
  • Page 2 HT-DDW740/DDW840 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2002.02...
  • Page 3 UK Model E Model Photo : STR-K840P (SILVER model) • STR-K740P/K840P are the tuner and the amplifier section in HT-DDW740/DDW840. Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation.
  • Page 4 STR-K740P/K840P Frequency response AM tuner section MULTI CH IN , CD, 10 Hz – 50 kHz Tuning range Models of area code U, CA MD/TAPE, DVD/LD, +0.5/–2 dB (with sound With 10-kHz tuning scale: 530 – 1710 kHz VIDEO 1, 2 field, and tone bypassed) With 9-kHz tuning scale: 531 –...
  • Page 5 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 6: Table Of Contents

    STR-K740P/K840P MODEL IDENTIFICATION TABLE OF CONTENTS — BACK PANEL — 1. GENERAL ·········································································· 5 2. TEST MODE ······································································ 6 3. DIAGRAMS ········································································ 8 3-1. Circuit Board Location ·················································· 8 3-2. Block Diagrams – MAIN Section – ···························· 10 Parts No. –...

  • Page 7: General

    IR (receptor) 4 (39, 46, 52) SET UP 6 (4, 16, 37, 57) LEVEL 0 (16, 20, 28, 57) SHIFT eg (33) A – D SLEEP (HT-DDW740 only) qf A.DEC wk (24, 26) (37) AM (Except for models of area SURR qd (28, 57)

  • Page 8: Test Mode

    STR-K740P/K840P SECTION 2 TEST MODE FACTORY PRESET MODE 3. Press the VIDEO button, confirm display * All preset contents are reset to the default setting. DIGITAL MONO MEMORY * Procedure: SP.OFF MULTI CH IN NEWS While depressing the VIDEO 1 and the 2CH buttons simul- taneously, press the power ?/1 button to turn on the main power.
  • Page 9 STR-K740P/K840P AUTO BETICAL MODE * This mode is installed in the Europe models only. When this mode is used, the receiver scans the broadcasts that can be received by the tuner, and sets up the broadcasts. Be sure to start scanning after connecting the antenna.

  • Page 10: Diagrams

    STR-K740P/K840P SECTION 3 DIAGRAMS 3-1. Circuit Board Location AC SELCT board (E model only) STANDBY board POWER SW board VIDEO board MAIN board DIGITAL board HEADPHONE board DISPLAY board...
  • Page 11 STR-K740P/K840P THIS NOTE IS COMMON FOR PRINTED WIRING For printed wiring boards. • Waveform Note: BOARDS AND SCHEMATIC DIAGRAMS. • X : parts extracted from the component side. (In addition to this necessary note is printed in each DIGITAL Board •...

  • Page 12: Block Diagrams - Main Section

    STR-K740P/K840P 3-2. Block Diagrams – MAIN Section – IC201 ANALOG SOUND TUNER PACK PROC. L CH L IN8 75 Ω IC1601(1/3) COAXIAL R CH R-CH SYSTEM CONTROL. ANTENNA ST-DO J402 ST-DI L OUT L IN9 Q361 SLATCH MUTING L REC3 STEREO STEREO TUNED...

  • Page 13: Display/Power Section

    STR-K740P/K840P – DISPLAY/POWER Section – R-CH J791 IC701 PHONES POWER AMP RY791 Q790 Q703 +V OUT2 RELAY BOOSTER DRIVE Q701,702 LIMITER TM602 RY701 • R-CH is omitted due to same as L-CH FRONT Q740 D731 Q710 • Signal Path MUTING AF POWER RELAY R-CH...

  • Page 14: Printed Wiring Board - Digital Section

    STR-K740P/K840P 3-3. Printed Wiring Board – DIGITAL Section – • See page 8 for Circuit Boards Location. • Semiconductor • : Uses unleaded solder. Location Ref. No. Location D1001 D1101 D1501 D1502 D1601 D1905 D1906 D1907 IC1101 IC1102 IC1102 IC1105 IC1105 IC1201 IC1202...

  • Page 15: Schematic Diagram - Digital Section (1/2)

    STR-K740P/K840P 3-4. Schematic Diagram – DIGITAL Section (1/2) – • See page 9 for Waveform. • See page 23 for IC Block Diagrams. IC B/D...

  • Page 16: Schematic Diagram - Digital Section (2/2)

    STR-K740P/K840P • See page 9 for Waveform. • See page 25 for IC Pin Function Description. 3-5. Schematic Diagram – DIGITAL Section (2/2) –...

  • Page 17: Printed Wiring Board - Main Section

    STR-K740P/K840P 3-6. Printed Wiring Board – MAIN Section – • : Uses unleaded solder. • See page 8 for Circuit Boards Location. K740P:AEP,UK/K840P:AEP,UK K740P:AEP,UK/K840P:AEP,UK K740P:AEP,UK/K840P:AEP,UK IC801 IC802 IC201 IC601 IC701 IC702 IC401 IC501 Q503 Q504 Q703 Q704 Q653 Q654 Q753 Q754 Q603 Q604...

  • Page 18: Schematic Diagram - Main Section (1/2)

    STR-K740P/K840P 3-7. Schematic Diagram – MAIN Section (1/2) – • See page 23 for IC Block Diagrams.

  • Page 19: Schematic Diagram - Main Section (2/2)

    STR-K740P/K840P 3-8. Schematic Diagram – MAIN Section (2/2) – • See page 23 for IC Block Diagrams. IC B/D IC B/D IC B/D...

  • Page 20: Printed Wiring Board - Display Section

    STR-K740P/K840P 3-9. Printed Wiring Board – DISPLAY Section – • See page 8 for Circuit Boards Location. • : Uses unleaded solder. • Semiconductor Location Ref. No. Location D100 D102 D103 D104 D105 D111 D112 D113 D114 IC100 IC101 IC102 B-13 Q100 Q101...

  • Page 21: Schematic Diagram - Display Section

    STR-K740P/K840P 3-10. Schematic Diagram – DISPLAY Section – • See page 24 for IC Block Diagrams. IC B/D...

  • Page 22: Printed Wiring Board - Video Section

    STR-K740P/K840P 3-11. Printed Wiring Board – VIDEO Section – 3-12. Schematic Diagram – VIDEO Section – • See page 24 for IC Block Diagrams. • : Uses unleaded solder. • See page 8 for Circuit Boards Location. IC807 IC B/D IC804 IC103...

  • Page 23: Printed Wiring Board - Power Section

    STR-K740P/K840P 3-13. Printed Wiring Board – POWER Section – • : Uses unleaded solder. • See page 8 for Circuit Boards Location. K740P:US, CND/K840P:US, CND (CHASSIS) EXCEPT K740P:E/K840P:E K740P:E/K840P:E CNP801 (Page 15) CNP802 (Page 15)

  • Page 24: Schematic Diagram - Power Section

    STR-K740P/K840P 3-14. Schematic Diagram – POWER Section – F901 2.5V/250V : EXCEPT K740P:US,CND/K840P:US,CND,MX 6.3V/125V : K740P:US,CND/K840P:US,CND,MX...

  • Page 25: Ic Block Diagrams

    STR-K740P/K840P 3-15. IC Block Diagrams IC1101 LC89056W-E (DIGITAL BOARD) AUDIO C BIT PA/PB DETECT DETECT EMPHA SAMPLING FREQUENCY MICROCOMPUTER INTERFACE XSEL LOCK XOUT CLOCK DETECT XMCK 19 DVDD MODE0 MODE 18 DGND SELECT MODE1 XSTATE DGND DATAO DVDD LRCK DOSEL0 DATA TIMING DOSEL1...
  • Page 26 STR-K740P/K840P IC101 MC74ACT08N (DISPLAY BOARD) IC103 NJM2595D (VIDEO BOARD) 75Ω Driver 75Ω VI.OUT Driver 75Ω M.OUT Driver...

  • Page 27: Ic Pin Function Descriptions

    STR-K740P/K840P 3-16. IC PIN FUNCTION DESCRIPTIONS • IC1601 MB90478PF-G-120-BND (SYSTEM CONTROL) Pin No. Pin Name Description DATAO Audio data signal input from DIR GP9 signal input from DSP BST signal output to DSP HCS signal output to DSP HACN HACN signal input from DSP XRST Reset signal output to DSP PM signal output to DSP...
  • Page 28 STR-K740P/K840P Pin No. Pin Name Description Operation mode setting input RDS CLOCK RDS clock signal output (Not used) RDS DATA RDS data signal output (Not used) SIRCS Data signal input from the remote control sensor FUSE DETECT Fuse detect signal input POWER KEY Power switch key detect signal input JOG (B)

  • Page 29: Exploded Views

    STR-K740P/K840P Ver 1.1 2003.07 SECTION 4 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number The components identified by mark 0 or have some differences from the original one. in the exploded views are not supplied.

  • Page 30: Chassis Section-1

    STR-K740P/K840P 4-2. Chassis Section-1 not supplied not supplied T901 not supplied not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-232-237-01 FOOT (DIA. 30) 4-238-193-81 BACK PANEL (HT4) (K840P:AR) 4-977-358-01 CUSHION 4-238-193-91 BACK PANEL (HT4) (K840P:MX) A-4727-963-A MAIN BOARD, COMPLETE (K840P:US,CND) X-4953-448-1 FOOT ASSY A-4727-967-A MAIN BOARD, COMPLETE...

  • Page 31: Chassis Section-2

    STR-K740P/K840P 4-3. Chassis Section-2 not supplied not supplied T901 not supplied not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks – Continued from page28 – * 65 3-703-244-00 BUSHING (2104), CORD 3-701-748-00 CLAMP 1-683-761-11 AC SELECT BOARD (K740P:E/K840P:E) A-4727-815-A VIDEO BOARD, COMPLETE 1-500-386-11 FILTER, CLAMP (FERRITE CORE)

  • Page 32: Electrical Parts List

    STR-K740P/K840P SECTION 5 AC SELECT DIGITAL ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • COILS When indicating parts by reference number, parts list may be different from the parts uH: µH please include the board name. specified in the diagrams or the components •...
  • Page 33 STR-K740P/K840P DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C1513 1-164-156-11 CERAMIC CHIP 0.1uF D1905 8-719-053-18 DIODE 1SR154-400TE-25 C1514 1-164-156-11 CERAMIC CHIP 0.1uF D1906 8-719-053-18 DIODE 1SR154-400TE-25 C1515 1-126-964-11 ELECT 10uF 20.00% 50V D1907 8-719-053-18 DIODE 1SR154-400TE-25 C1522 1-164-156-11 CERAMIC CHIP 0.1uF...
  • Page 34 STR-K740P/K840P DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < COIL > R1506 1-216-833-11 METAL CHIP 1/16W R1507 1-216-829-11 METAL CHIP 4.7K 1/16W L1901 1-216-864-11 METAL CHIP 1/16W R1508 1-216-845-11 METAL CHIP 100K 1/16W R1509 1-216-809-11 METAL CHIP 1/16W <...
  • Page 35 STR-K740P/K840P DIGITAL DISPLAY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R1640 1-216-821-11 METAL CHIP 1/16W A-4728-362-A DISPLAY BOARD, COMPLETE (K740P) R1641 1-216-821-11 METAL CHIP 1/16W ******************************* R1642 1-216-833-11 METAL CHIP 1/16W A-4727-966-A DISPLAY BOARD, COMPLETE (K840P) R1643 1-216-821-11 METAL CHIP 1/16W...
  • Page 36 STR-K740P/K840P DISPLAY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < TRANSISTOR > R123 1-249-421-11 CARBON 2.2K 1/4W F (K840P) Q100 8-729-119-78 TRANSISTOR 2SC2785TP-HFE (K840P) R124 1-249-421-11 CARBON 2.2K 1/4W F Q101 8-729-119-78 TRANSISTOR 2SC2785TP-HFE (K740P) Q102 8-729-119-78 TRANSISTOR 2SC2785TP-HFE...
  • Page 37 STR-K740P/K840P DISPLAY HEADPHONE MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R168 1-249-409-11 CARBON 1/4W F 1-683-763-11 HEADPHONE BOARD R169 1-249-409-11 CARBON 1/4W F ***************** R170 1-249-429-11 CARBON 1/4W R171 1-249-429-11 CARBON 1/4W < CAPACITOR > (K840P) 0 R198 1-249-381-11 CARBON...
  • Page 38 STR-K740P/K840P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C433 1-126-964-11 ELECT 10uF 20.00% 50V C616 1-106-355-12 MYLAR 3300PF 200V C452 1-126-964-11 ELECT 10uF 20.00% 50V C617 1-106-355-12 MYLAR 3300PF 200V C454 1-126-964-11 ELECT 10uF 20.00% 50V C619 1-128-813-11 CERAMIC...
  • Page 39 STR-K740P/K840P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C802 1-126-947-11 ELECT 47uF 20.00% 35V CC32 1-128-809-11 CERAMIC 100PF C803 1-165-498-11 ELECT 4700uF (K740P:AEP,UK/K840P:AEP,UK) (K740P) CC41 1-128-809-11 CERAMIC 100PF C803 1-165-707-11 ELECT 10000uF (K740P:AEP,UK/K840P:AEP,UK) (K840P) CC42 1-128-809-11 CERAMIC 100PF...
  • Page 40 STR-K740P/K840P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D791 8-719-911-19 DIODE 1SS133T-72 Q604 8-749-010-26 TRANSISTOR MP1620-OPY-M D801 8-719-934-21 DIODE HZS30-1LTA Q605 8-729-140-82 TRANSISTOR 2SA988TP-PAFAEA D802 8-719-072-05 DIODE RBV-602LF-A Q606 8-729-140-82 TRANSISTOR 2SA988TP-PAFAEA D804 8-719-068-24 DIODE HZ5.6BP-TK Q610 8-729-119-79 TRANSISTOR 2SC2785TP-FEK...
  • Page 41 STR-K740P/K840P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R402 1-249-417-11 CARBON 1/4W F R505 1-249-439-11 CARBON 1/4W R404 1-249-417-11 CARBON 1/4W F R510 1-249-421-11 CARBON 2.2K 1/4W F R405 1-249-417-11 CARBON 1/4W F R511 1-249-440-11 CARBON 1/4W R406...
  • Page 42 STR-K740P/K840P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R651 1-249-417-11 CARBON 1/4W F R722 1-249-419-11 CARBON 1.5K 1/4W F R652 1-249-439-11 CARBON 1/4W R723 1-249-437-11 CARBON 1/4W R653 1-249-416-11 CARBON 1/4W F R724 1-249-431-11 CARBON 1/4W (K740P) R725...
  • Page 43 STR-K740P/K840P MAIN POWER SW STANDBY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 0 R793 1-249-389-11 CARBON 1/4W F A-4676-982-A STANDBY BOARD, COMPLETE (K840P:MX) R794 1-215-867-00 METAL OXIDE ********************************** (K740P) A-4727-969-A STANDBY BOARD, COMPLETE R794 1-215-868-00 METAL OXIDE (K740P:MY,SP/K840P:MY,SP,AR) (K840P) **************************************...
  • Page 44 STR-K740P/K840P STANDBY VIDEO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < TRANSISTOR > < IC > Q901 8-729-119-79 TRANSISTOR 2SC2785TP-FEK IC103 6-701-890-01 IC NJM2595D Q921 8-729-281-53 TRANSISTOR 2SC1815GR-TPE2 IC804 8-759-701-65 IC NJM79M05FA IC807 8-759-039-69 IC uPC7805AHF <...
  • Page 45 STR-K740P/K840P Ref. No. Part No. Description Remarks MISCELLANEOUS *************** 1-773-250-11 WIRE (FLAT TYPE) (27 CORE) 1-575-662-31 WIRE (FLAT TYPE) (5 CORE) (K840P:AR,MX) 1-769-844-11 WIRE (FLAT TYPE) (5 CORE) (K740P/K840P:US,CND,AEP,UK,E,MY,SP) 1-693-577-21 TUNER PACK (K740P:US,CND,E/K840P:US,CND,E,MX) 1-693-578-21 TUNER PACK (K740P:AEP,UK/K840P:AEP,UK) 1-693-580-21 TUNER PACK (K740P:MY,SP/K840P:MY,SP,AR) 1-769-940-11 WIRE (FLAT TYPE) (11 CORE) (EXCEPT K740P:AEP,UK/K840P:AEP,UK) 1-773-004-11 WIRE (FLAT TYPE) (15 CORE)
  • Page 46 STR-K740P/K840P MEMO...
  • Page 47 STR-K740P/K840P US Model Canadian Model SERVICE MANUAL AEP Model UK Model E Model Ver 1.2 2003. 09 SUPPLEMENT-1 File this supplement with the service manual. Subject : Change of IC701, IC702. (SPM-03064) The IC701 and IC702 on the US model have been changed from µPC2581V-S to STK350-030 in the process of production.
  • Page 48 STR-K740P/K840P TABLE OF CONTENTS 1. Printed Wiring Boards –Main Section– ........3 2. Schematic Diagram –Main Section (1/2)– ......4 3. Schematic Diagram –Main Section (2/2)– ......5 4. Printed Wiring Board –STK Section– ........6 5. Schematic Diagram –STK Section– ........7 6.

  • Page 49: Printed Wiring Boards -Main Section

    STR-K740P/K840P 1. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 2 for Common Note on Printed Wiring Boards. (K840P) J401 J402 J403 J404 J405 TM601 TM602 (Page 8) R411 R435 JW526 JW514 JW524 C406 C411 C431 R415 R416 C456 R426...

  • Page 50: Schematic Diagram -Main Section (1/2)

    STR-K740P/K840P 2. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 2 for Common Note on Schematic Diagram. C481 C491 C483 C493 J404 R407 C407 R427 R447 C492 R457 C457 C482 C494 (Page 5) C484 R406 C406 R426 IC201 R446 C456...

  • Page 51: Schematic Diagram -Main Section (2/2)

    STR-K740P/K840P 3. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 2 for Common Note on Schematic Diagram. CNP791 CN792 C792 C790 R792 RY791 (Page 4) R723 J791 C717 R719 C720 Q701 L701 R794 Q705 R714 R718 R745 Q703 CNP506 R710...

  • Page 52: Printed Wiring Board -Stk Section

    STR-K740P/K840P 4. PRINTED WIRING BOARD — STK SECTION — • Refer to page 2 for Common Note on Printed Wiring Boards. • Semiconductor Location Ref. No. Location IC701 IC702 JW799 Q361 C701 Q362 Q365 Q366 C651 C703 C653 IC701 C753 C601 C751 C603...

  • Page 53: Schematic Diagram -Stk Section

    STR-K740P/K840P 5. SCHEMATIC DIAGRAM — STK SECTION — • Refer to page 2 for Common Note on Schematic Diagram. IC701 C701 R373 R701 C656 C706 Q361 R361 R363 C731 C730 C707 R702 C371 R500 R550 C655 C705 C372 C657 R652 R360 R362 CNS506...

  • Page 54: Printed Wiring Board -Video Section

    STR-K740P/K840P 6. PRINTED WIRING BOARD — VIDEO SECTION — • Refer to page 2 for Common Note on Printed Wiring Boards. J200 J201 R219 IC807 C249 C201 C200 R200 C209 CNS150 IC103 ((Page 12)) IC804 D204 CNP156 D203 JW210 (Page 3)

  • Page 55: Schematic Diagram -Video Section

    STR-K740P/K840P 7. SCHEMATIC DIAGRAM — VIDEO SECTION — • Refer to page 2 for Common Note on Schematic Diagram. R201 J201 C208 R219 C214 R220 C201 C210 C209 C200 J200 R200 IC807 C206 CNP156 IC103 C207 C827 C824 R221 R218 C809 C825 (Page 4)
  • Page 56 STR-K740P/K840P MAIN MAIN 8. ELECTRICAL PARTS LIST NOTE: Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or C721 1-126-934-11 ELECT 220uF...
  • Page 57 STR-K740P/K840P MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q651 8-729-119-76 TRANSISTOR 2SA1175-HFE R431 1-249-417-11 CARBON 1/4W Q652 8-729-141-30 TRANSISTOR 2SC3623A-LK (K840P) Q655 8-729-140-82 TRANSISTOR 2SA988-PAFAEA R432 1-249-417-11 CARBON 1/4W Q656 8-729-140-82 TRANSISTOR 2SA988-PAFAEA (K840P) Q680 8-729-281-53 TRANSISTOR 2SC1815-GR R435...
  • Page 58 STR-K740P/K840P MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R555 1-249-433-11 CARBON 1/4W R714 1-249-405-11 CARBON 1/4W R715 1-249-405-11 CARBON 1/4W R556 1-249-433-11 CARBON 1/4W R716 1-234-182-11 ENCAPSULATED COMPONENT 0.22X2 5W R557 1-249-431-11 CARBON 1/4W R717 1-249-393-11 CARBON 1/4W...
  • Page 59 STR-K740P/K840P MAIN VIDEO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RELAY > < TRANSISTOR > RY501 1-755-421-11 RELAY Q361 8-729-823-22 TRANSISTOR 2SC3576 RY560 1-755-267-11 RELAY Q362 8-729-823-22 TRANSISTOR 2SC3576 RY601 1-755-421-11 RELAY Q365 8-729-823-22 TRANSISTOR 2SC3576 RY701 1-755-421-11 RELAY Q366...
  • Page 60 STR-K740P/K840P VIDEO Ref. No. Part No. Description Remark C206 1-126-964-11 ELECT 10uF C207 1-126-964-11 ELECT 10uF C208 1-126-964-11 ELECT 10uF C209 1-126-960-11 ELECT C210 1-126-964-11 ELECT 10uF C213 1-126-934-11 ELECT 220uF C214 1-164-159-11 CERAMIC 0.1uF C215 1-164-159-11 CERAMIC 0.1uF C248 1-128-825-11 CERAMIC 0.0022uF 5% C249...
  • Page 61 STR-K740P/K840P MEMO...
  • Page 62 STR-K740P/K840P REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2002.
  • Page 63 CEK : UK model Input LINE IN (input pin jacks) CEL : AEP model : Mexican model : Malaysia model : Singapore model : US model ACTIVE SUBWOOFER Sony Corporation 9-873-478-01 2002B1600-1 Home Audio Company © 2002.02 Published by Sony Engineering Corporation...
  • Page 64 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 65 SA-WMSP2/WMSP4 SECTION 1 DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) Note on Printed Wiring Boards: Note on Schematic Diagram: • X : parts extracted from the component side. •...
  • Page 66 SA-WMSP2/WMSP4 • CIRCUIT BOARD LOCATION LED board INPUT JACK board SWITCH board MAIN board POWER TRANS board CONTROL board...
  • Page 67 SA-WMSP2/WMSP4 1-1. Printed Wiring Boards • See page 3 for Circuit Boards Location. POWER TRANSFORMER IC301 • Semiconductor Location Ref. No. Location D202 D301 D302 D304 D401 D402 D403 IC101 IC202 D404 D405 D501 D502 IC101 IC202 IC301 Q501 Q502 Q503 Q504 Q505...
  • Page 68 SA-WMSP2/WMSP4 • See page 4 for IC Block Diagrams. 1-2. Schematic Diagrams IC B/D...
  • Page 69 X-4953-515-1 FRAME (SILVER) ASSY, GRILLE (SILVER) 4-232-527-01 KNOB, VOLUME (SILVER) X-4953-516-1 FRAME (BLACK) ASSY, GRILLE (BLACK) 4-232-527-11 KNOB, VOLUME (BLACK) 4-232-530-01 PANEL, FRONT (SILVER) 4-998-417-02 EMBLEM (NO.5), SONY (WMSP2:UK,AEP,MY,SP,E) 4-235-677-01 SCREW (4X20) (TYPE1), +BVTP 4-232-530-21 PANEL, FRONT (SILVER) (WMSP2:US,CND) 1-684-030-11 SWITCH BOARD...
  • Page 70 SA-WMSP2/WMSP4 2-2. Amp Section supplied F902 F901 supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4735-752-A SPEAKER CABINET ASSY (SILVER) 0 F902 1-532-502-51 FUSE (T1.25AL/250V) (WMSP2:E/WMSP4:E) 0 T1 (WMSP2:E,US,CND/WMSP4:AR,E,MX,US,CND) 1-437-657-11 POWER TRANSFORMER (WMSP2:E) 0 T1 A-4735-942-A SPEAKER CABINET ASSY (SILVER) 1-437-658-11 POWER TRANSFORMER (WMSP2:UK,AEP,MY,SP/WMSP4:UK,AEP,MY,SP)

  • Page 71: Electrical Parts List

    SA-WMSP2/WMSP4 SECTION 3 CONTROL INPUT JACK ELECTRICAL PARTS LIST MAIN NOTE: • Due to standardization, replacements in the • COILS When indicating parts by reference number, parts list may be different from the parts uH: µH please include the board name. specified in the diagrams or the components •...
  • Page 72 SA-WMSP2/WMSP4 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C410 1-136-165-00 MYLAR 0.1uF 5.00% 50V R109 1-249-441-11 CARBON 100K 1/4W (WMSP4) R110 1-249-433-11 CARBON 1/4W C411 1-126-964-11 ELECT 10uF 20.00% 50V R111 1-247-887-00 CARBON 220K 1/4W C412 1-126-964-11 ELECT...
  • Page 73 SA-WMSP2/WMSP4 POWER TRANS SWITCH Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-684-033-11 POWER TRANS BOARD MISCELLANEOUS ******************* *************** 0 15 1-533-233-11 HOLDER, FUSE 1-769-744-11 CORD, POWER (UK,AEP,MY,SP) 0 15 1-783-528-11 CORD, POWER (TRACKING) (E) < CAPACITOR > 0 15 1-783-820-11 CORD, POWER (US,CND,MX) 0 15...
  • Page 74 SA-WMSP2/WMSP4 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2002.02...
  • Page 75 A-4467-570-A OVERALL ASSY (SILVER) (SS-MSP2) Mass A-4467-805-A OVERALL ASSY (BLACK) (SS-MSP2) SS-MSP2 0.8 kg (1 lb 13 oz) SS-CNP2 1.0 kg (2 lb 4 oz) SPEAKER SYSYTEM Sony Corporation 9-873-476-01 2002B1600-1 Home Audio Company © 2002.02 Published by Sony Engineering Corporation...
  • Page 76 SS-CNP2/CRP2/MSP2 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2002.02...

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