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SERVICE MANUAL
Ver 1.0 2004.03
• STR-K760P is the tuner and the amplifier
section in HT-DDW760.
Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are trademarks of
Dolby Laboratories.
"DTS" and "DTS Digital Surround" are registered trademarks of
Digital Theater Systems, Inc.
Amplifier section
1)
Power Output
Models of area code CA
(6 ohms 1 kHz, THD 0.7%)
(6 ohms 1 kHz, THD 10%)
Models of area code SP, E51
(6 ohms 1 kHz, THD 0.7%)
(6 ohms 1 kHz, THD 10%)
Models of area code AU
(6 ohms 120 Hz - 20 kHz, THD 0.09%)
Sony Corporation
9-877-666-01
2004C1678-1
Home Audio Company
© 2004.03
Published by Sony Engineering Corporation
STR-K760P
SPECIFICATIONS
2)
FRONT
: 60 W/ch
2)
CENTER
: 60 W
2)
SURR
: 60 W/ch
2)
FRONT
: 100 W/ch
2)
CENTER
: 100 W
2)
SURR
: 100 W/ch
2)
FRONT
: 80 W/ch
2)
CENTER
: 80 W
2)
SURR
: 80 W/ch
2)
FRONT
: 100 W/ch
2)
CENTER
: 100 W
2)
SURR
: 100 W/ch
2)
FRONT
: 45 W/ch
2)
CENTER
: 45 W
2)
SURR
: 45 W/ch
Canadian Model
Australian Model
(6 ohms 1 kHz, THD 0.7%)
2)
FRONT
: 80 W/ch
2)
CENTER
2)
SURR
: 80 W/ch
(6 ohms 1 kHz, THD 10%)
2)
FRONT
: 100 W/ch
2)
CENTER
2)
SURR
: 100 W/ch
1) Measured under the following conditions:
Area code
Power requirements
CA
120 V AC, 60 Hz
SP
230 V AC, 50 Hz
AU, E51
240 V AC, 50 Hz
2) Depending on the sound field settings and the
source, there may be no sound output.
Inputs (Analog)
CD, MD/TAPE,
Sensitivity: 800 mV
VIDEO 1, 2, DVD
Impedance: 50 kiloohms
Inputs (Digital)
Sensitivity: -
DVD (Coaxial)
Impedance: 75 ohms
VIDEO 2 (Optical)
Sensitivity: -
Impedance: -
FM STEREO FM-AM RECEIVER
E Model
: 80 W
: 100 W
— Continued on next page —

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Summary of Contents for Sony STR-K760P

  • Page 1 SERVICE MANUAL Canadian Model E Model Ver 1.0 2004.03 Australian Model • STR-K760P is the tuner and the amplifier section in HT-DDW760. Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories.
  • Page 2 STR-K760P Outputs (Analog) Video section Inputs/Outputs MD/TAPE (OUT), Voltage: 800 mV Video: 1 Vp-p, 75 ohms VIDEO 1 (AUDIO OUT) Impedance: 10 kiloohms SUB WOOFER Voltage: 2 V General Impedance: 1 kiloohms Power requirements Reproduction frequency range: Area code Power requirements...
  • 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

    STR-K760P TABLE OF CONTENTS 1. GENERAL ··································································· 2. TEST MODE ······································································ 9 3. DIAGRAMS 3-1. Circuit Board Location ··············································· 11 3-2. Block Diagrams – MAIN Section – ··························· 12 – DISPLAY/POWER Section – ································· 13 3-3. Printed Wiring Board – DIGITAL Board (Side A) – ····································· 14 3-4.
  • Page 5: General

    STR-K760P SECTION 1 GENERAL This section is extracted from instruction manual. Main unit M - Z NUMBERS AND SYMBOLS ALPHABETICAL ORDER 2CH (button/indicator) 8 (27, MAIN MENU qj (17, 30, 32, 34) A - L 29, 31) TER VOLUME −/+ qs (19, +/−...
  • Page 6: Md/Tape

    STR-K760P 5HPRWH 2SHUDWLRQV )XQFWLRQ Remote button %XWWRQ description 5HPRWH :KHQ $/7 EXWWRQ OLJKWV XS LW FKDQJHV WKH UHPRWH NH\ IXQFWLRQ WR DFWLYDWH WKRVH EXWWRQV ZLWK RUDQJH SULQWLQJ TV ?/1 AV ?/1 RM SET UP $1*/( '9' SOD\HU 6HOHFWV YLHZLQJ DQJOH...
  • Page 7 STR-K760P 5HPRWH 2SHUDWLRQV )XQFWLRQ 5HPRWH 2SHUDWLRQV )XQFWLRQ %XWWRQ %XWWRQ (17(5 799&5 $IWHU VHOHFWLQJ D 6/((3 5HFHLYHU $FWLYDWHV WKH VOHHS 6DWHOOLWH WXQHU FKDQQHO GLVF RU WUDFN IXQFWLRQ DQG WKH GXUDWLRQ ZKLFK WKH /' SOD\HU XVLQJ WKH QXPHULF UHFHLYHU WXUQV RII 0' GHFN...
  • Page 8 STR-K760P 5HPRWH 2SHUDWLRQV )XQFWLRQ 5HPRWH 2SHUDWLRQV )XQFWLRQ %XWWRQ %XWWRQ v qs 9&5 6WDUWV SOD\EDFN 5HFHLYHU 6HOHFWV D PHQX LWHP H q; &' SOD\HU b qs 5HFHLYHU $GMXVWV RU FKDQJHV WKH 9&' SOD\HU VHWWLQJ /' SOD\HU b qs 9&5 6HOHFWV D PHQX LWHP...
  • Page 9: Test Mode

    STR-K760P SECTION 2 TEST MODE • Procedure: FACTORY PRESET MODE • All preset contents are reset to the default setting. While depressing the 2CH button, press the ?/1 button to turn • Procedure: on the main power. The message “SF. CLR.” appears and initialization is performed.
  • Page 10 STR-K760P MEMO...
  • Page 11: Diagrams

    STR-K760P SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARD LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING For printed wiring boards. Note: BOARDS AND SCHEMATIC DIAGRAMS. • X : parts extracted from the component side. (In addition to this necessary note is printed in each •...
  • Page 12: Block Diagrams - Main Section

    STR-K760P 3-2. BLOCK DIAGRAMS – MAIN SECTION – IC201 ANALOG SOUND TUNER PACK PROCESSOR L CH INL1 75 Ω IC1601(1/3) COAXIAL J404 R CH R-CH SYSTEM CONTROL. (2/2) ST-DO J404 RECEL 1 AUDIO OUT VIDEO 1 (1/2) ST-DI VIDEO 1...
  • Page 13: Display/Power Section

    STR-K760P – DISPLAY/POWER SECTION – R-CH J791 IC701 PHONES POWER AMP RY791 Q790 Q703 +V OUT2 RELAY BOOSTER DRIVE Q701,702 LIMITER TM602 • R-CH is omitted due to same as L-CH RY701 • Signal Path FRONT Q740 D731 Q710 AF POWER...
  • Page 14: Digital Board (Side A)

    STR-K760P 3-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) – • See page 11 for Circuit Boards Location. • : Uses unleaded solder. IC1101 IC1202 R1677 G1101 IC1102 R1678 R1679 IC1201 • Semiconductor Location Ref. No. Location EXCEPT CND...
  • Page 15: Digital Board (Side B)

    STR-K760P 3-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) – • See page 11 for Circuit Boards Location. • : Uses unleaded solder. STANDBY BOARD MAIN BOARD VIDEO BOARD CNP802 CNP911 TUNER UNIT CNS250 (Page 22) (Page 18) (Page 21)
  • Page 16: Schematic Diagram - Digital Section (1/2)

    STR-K760P 3-5. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/2) – R1315 R1365 R1115 C1129 C1315 0.001 100p C1112 0.01 C1111 FB1202 FB1102 C1365 100p R1107 C1106 5.6k C1107 IC1104 0.01 R1120 TORX141L R1122 R1113 C1113 C1120 IC1101 LC89056W-E JR1116 R1106 R1105 4.7k...
  • Page 17: Schematic Diagram - Digital Section (2/2)

    STR-K760P 3-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/2) – • See page 29 for IC PIN FUNCTION DESCRIPTION. G1101 C1636 C1617 0.01 IC1602 CNP5 PST3629NR R1642 C1612 C1909 CNS4 CNP6 FB1601 C1912 470 10V C1905 IC1902 M5F7810L R1654 FB1603 R1696...
  • Page 18: Printed Wiring Board - Main Section

    STR-K760P 3-7. PRINTED WIRING BOARD – MAIN SECTION – • See page 11 for Circuit Boards Location. • : Uses unleaded solder. J402 J404 MD/TEPE VIDEO 2 VIDEO 1 AUDIO AUDIO AUDIO AUDIO SUB WOOFER AUDIO SURROUND CENTER FRONT J405...
  • Page 19: Schematic Diagram - Main Section (1/2)

    STR-K760P 3-8. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – J404 CC06 R406 C408 4.7 50V C492 C482 CC56 R456 C500 C484 4.7 50V C491 C481 C483 2200p C494 4.7 50V Q361 R373 2SD2144S R361 CC08 R408 -TP-UVW 4.7k R363 C371...
  • Page 20: Schematic Diagram - Main Section (2/2)

    STR-K760P 3-9. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – R792 CN792 CNP791 RY791 J791 Q740 2SC1815GR-TPE2 R745 C717 C720 AF POWER PROTECT Q701 R719 R794 220p 2SA1115TP-EF 500V 4.7k Q705 R740 C742 D740 2SA1038S 0.01 1SS133T-72 R746 R793 -RSE-TP R714...
  • Page 21: Printed Wiring Board - Video Board

    STR-K760P 3-10. PRINTED WIRING BOARD – VIDEO BOARD – • See page 11 for Circuit Boards Location. 3-11. SCHEMATIC DIAGRAM – VIDEO BOARD – • : Uses unleaded solder. J201 IC807 R220 C208 TA7805S 10 50V CNP156 C201 C210 C214...
  • Page 22: Printed Wiring Board - Power Section

    STR-K760P 3-12. PRINTED WIRING BOARD – POWER SECTION – • See page 11 for Circuit Boards Location. • : Uses unleaded solder. MAIN BOARD DIGITAL BOARD CNP915 CNP6 (Page 18) (Page 15) VOLTAGE SELECTOR 240V 220V 120V DIGITAL BOARD CNP5...
  • Page 23: Schematic Diagram - Power Section

    STR-K760P 3-13. SCHEMATIC DIAGRAM – POWER SECTION – D804 HZ6.8BP-TK T901 C822 D815 R910 Q801 R804 10EDB40-TA2B5 0.33 R806 2SB734-T-34 C801 C831 C802 D812 47 35V 10EDB40-TA2B5 CNP802 D801 CNP804 HZS20-1LTA C823 D813 C830 3300 C821 C820 10EDB40-TA2B5 D814 10EDB40-TA2B5...
  • Page 24: Printed Wiring Board - Front Panel Section

    STR-K760P 3-14. PRINTED WIRING BOARD – FRONT PANEL SECTION – • See page 11 for Circuit Boards Location. • : Uses unleaded solder. IC102 IC100 MUSIC MOVIE A.F.D. (FLUORESCENT INDICATOR TUBE) IC101 MASTER ENTER MAIN VOLUME MENU R106 R107 DIGITAL BOARD >...
  • Page 25: Schematic Diagram - Front Panel Section

    STR-K760P 3-15. SCHEMATIC DIAGRAM – FRONT PANEL SECTION – C108 R199 R198 FL101 R101 R102 R103 R104 R105 R106 R107 2.2k 2.2k 4.7k S107 S100 C101 R175 R161 S101 S102 S103 S104 S105 S106 D105 SLR-325DCT31 D104 D103 D102 SLR-325DCT31...
  • Page 26 STR-K760P • IC BLOCK DIAGRAMS IC1101 LC89056W-E (DIGITAL BOARD) IC1602 PST3629NR (DIGITAL BOARD) AUDIO C BIT PA/PB DETECT DETECT EMPHA SAMPLING FREQUENCY MICROCOMPUTER INTERFACE XSEL LOCK CLOCK XOUT DETECT XMCK 19 DVDD MODE0 MODE 18 DGND MODE1 SELECT XSTATE DGND...
  • Page 27 STR-K760P IC100 PT6315 (DISPLAY BOARD) Grid driver Multiplexed driver SEG19/GRID10 Command decoder LED1 SEG18/GRID11 LED2 Display memory LED3 SEG17/GRID12 24 bits x 12 words LED4 Timing generator key scan DOUT SEG16/KS16 Key data memory Serial SEG15/KS15 (2 x 16 bits)
  • Page 28 STR-K760P IC201 M61527FP (MAIN BOARD) 61 60 INL10/RECL4 SLVIN INR10/RECR4 SLSELOUT AVEE CSELOUT INL9 CVIN INR9 COUT INL8 SWOUT INR8 SWVIN INL7 SWSELOUT INR7 INL6 AVCC INIR6 DVDD INL5 LATCH INR5 DATA INL4 CLOCK INR4 DGND SWIN2 INL3 13 14 16 17 IC701, 702 µPC2581V-S (MAIN BOARD)
  • Page 29: Ic Pin Function Descriptions

    STR-K760P 3-16. IC PIN FUNCTION DESCRIPTIONS • IC1601 MB90478PF-G-170-BNDE1 (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...
  • Page 30 STR-K760P Pin No. Pin Name Description Operation mode setting input RDS CLOCK RDS clock signal input (Not used) RDS DATA RDS data signal input (Not used) SIRCS Data signal input from the remote control sensor FUSE DETECT Fuse detect signal input...
  • Page 31: Exploded Views

    STR-K760P SECTION 4 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • Abbreviation The components identified by mark 0 or have some differences from the original one. AUS : Australian model dotted line with mark 0 are critical for safety.
  • Page 32: Chassis Section

    STR-K760P 4-2. CHASSIS SECTION supplied Q603 Q754 Q604 Q753 Q653 Q654 supplied Q704 supplied Q703 Q503 Q504 supplied F901 #1 #1 T901 supplied supplied supplied supplied supplied supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-232-237-01 FOOT (DIA.
  • Page 33: Electrical Parts List

    STR-K760P SECTION 5 ELECTRICAL PARTS LIST AC SELECT DIGITAL NOTE: • Due to standardization, replacements in the • RESISTORS • Abbreviation parts list may be different from the parts All resistors are in ohms. AUS : Australian model specified in the diagrams or the components...
  • Page 34 STR-K760P DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C1552 1-124-778-00 ELECT CHIP 22uF 6.3V FB1105 1-469-710-21 FERRITE, EMI (SMD) (2012) C1601 1-164-156-11 CERAMIC CHIP 0.1uF FB1201 1-469-727-21 FERRITE, EMI (SMD) (2012) C1602 1-164-156-11 CERAMIC CHIP 0.1uF...
  • Page 35 STR-K760P DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R1110 1-216-821-11 METAL CHIP 1/10W R1303 1-216-809-11 METAL CHIP 1/10W R1111 1-216-821-11 METAL CHIP 1/10W R1304 1-216-809-11 METAL CHIP 1/10W R1112 1-216-809-11 METAL CHIP 1/10W R1305...
  • Page 36: Digital Display

    STR-K760P DIGITAL DISPLAY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R1640 1-216-809-11 METAL CHIP 1/10W A-4750-437-A DISPLAY BOARD, COMPLETE R1641 1-216-809-11 METAL CHIP 1/10W *********************** R1642 1-216-833-11 METAL CHIP 1/10W R1643 1-216-821-11 METAL CHIP 1/10W <...
  • Page 37 STR-K760P DISPLAY HEADPHONE MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < RESISTOR > A-4750-435-A MAIN BOARD, COMPLETE (CND) A-4750-445-A MAIN BOARD, COMPLETE (E51,MY,SP) R101 1-247-831-91 CARBON 1/4W A-4752-673-A MAIN BOARD, COMPLETE (AUS) R102 1-249-421-11 CARBON 2.2K...
  • Page 38 STR-K760P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C506 1-102-233-00 CERAMIC 33PF 500V C750 1-126-964-11 ELECT 10uF C507 1-128-809-11 CERAMIC 100PF C751 1-126-963-11 ELECT 4.7uF C752 1-127-876-11 CERAMIC 0.01uF C508 1-128-809-11 CERAMIC 100PF C753...
  • Page 39 STR-K760P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks CC59 1-128-809-11 CERAMIC 100PF < TRANSISTOR > (AUS) Q361 8-729-922-37 TRANSISTOR 2SD2144S-TP-UVW < CONNECTOR > Q362 8-729-922-37 TRANSISTOR 2SD2144S-TP-UVW Q363 8-729-922-37 TRANSISTOR 2SD2144S-TP-UVW CNP501 1-573-845-11 CONNECTOR, BOARD TO BOARD 13P...
  • Page 40 STR-K760P MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R372 1-247-879-91 CARBON 100K 1/4W R531 1-247-847-91 CARBON 4.7K 1/4W R373 1-247-831-91 CARBON 1/4W R532 1-247-847-91 CARBON 4.7K 1/4W R374 1-247-831-91 CARBON 1/4W R533 1-247-871-91 CARBON...
  • Page 41 STR-K760P MAIN POWER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R675 1-247-863-91 CARBON 1/4W R761 1-249-440-11 CARBON 1/4W R676 1-247-863-91 CARBON 1/4W R763 1-249-414-11 CARBON 1/4W R677 1-249-431-11 CARBON 1/4W R764 1-249-405-11 CARBON 1/4W R680...
  • Page 42 STR-K760P STANDBY TUNING VIDEO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4750-409-A STANDBY BOARD, COMPLETE (AUS,MY,SP) < TRANSISTOR > A-4750-423-A STANDBY BOARD, COMPLETE (E51) A-4750-608-A STANDBY BOARD, COMPLETE (CND) Q801 8-729-140-97 TRANSISTOR 2SB734-T-34 Q901 8-729-119-79 TRANSISTOR...
  • Page 43 STR-K760P VIDEO Ref. No. Part No. Description Remarks 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 2200PF C809 1-126-934-11 ELECT 220uF C824 1-164-159-11 CERAMIC 0.1uF C825 1-164-159-11 CERAMIC 0.1uF <...
  • Page 44 STR-K760P 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...

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