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Sony STR-DG720 Service Manual

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3 7 63 1515 0

SERVICE MANUAL

Ver. 1.0 2008.02
Manufactured under license from Dolby Laboratories.
Dolby, Pro Logic, and the double-D symbol are trademarks of Dolby
Laboratories.
Manufactured under license under U.S. Patent
#'s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,226,616; 6,487,535;
7,003,467; 7,212,872 & other U.S. and worldwide patents issued &
pending. DTS, DTS Digital Surround, ES, and Neo:6 are registered
trademarks and the DTS logos, Symbol and DTS 96/24 are trademarks of
TE
DTS, Inc. © 1996-2007 DTS, Inc. All Rights Reserved.
L 13942296513
This receiver incorporates High-Defi nition Multimedia Interface
TM
(HDMI
) technology.
HDMI, the HDMI logo and High-Defi nition Multimedia Interface
are trademarks or registered trademarks of HDMI Licensing LLC.
The XM name and related logo are registered
trademarks of XM Satellite Radio Inc. All rights reserved.
"x.v.Color" and "x.v.Color" logo are trademarks of
Sony Corporation.
"BRAVIA" and BRAVIA are trademarks of Sony Corporation.
www
.
Sony Corporation
9-887-994-01
2008B04-1
Audio Business Group
©
2008.02
Published by Sony Techno Create Corporation
http://www.xiaoyu163.com
Photo: Black type
x
ao
u163
y
i
http://www.xiaoyu163.com
STR-DG720
2 9
8
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
(Models of area code US only)
With 8 ohm loads, both channels driven, from 20 – 20,000 Hz; rated 95
watts per channel minimum RMS power, with no more than 0.09 % total
Q Q
harmonic distortion from 250 milliwatts to rated output.
3
6 7
1 3
1 5
Amplifi er section
Models of area code US, CND
Minimum RMS Output Power (8 ohms, 20 Hz – 20 kHz, THD 0.09%)
Stereo Mode Output Power (8 ohms, 1 kHz, THD 1%)
Surround Mode Output Power
Models of area code AEP, UK
Minimum RMS Output Power (8 ohms, 20 Hz – 20 kHz, THD 0.09%)
Stereo Mode Output Power (8 ohms, 1 kHz, THD 1%)
Surround Mode Output Power
MULTI CHANNEL AV RECEIVER
co
.
9 4
2 8
US Model
Canadian Model
AEP Model
UK Model
SPECIFICATIONS
0 5
8
2 9
9 4
2 8
1)
95 W + 95 W
105 W + 105 W
2)
(8 ohms, 1 kHz, THD 10%)
140 W/ch
1)
85 W + 85 W
100 W + 100 W
2)
(8 ohms, 1 kHz, THD 10%)
140 W/ch
– Continued on next page –
m
9 9
9 9

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Table of Contents

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   Summary of Contents for Sony STR-DG720

  • Page 1: Service Manual

    85 W + 85 W Sony Corporation. Stereo Mode Output Power (8 ohms, 1 kHz, THD 1%) 100 W + 100 W “BRAVIA” and BRAVIA are trademarks of Sony Corporation. Surround Mode Output Power (8 ohms, 1 kHz, THD 10%) 140 W/ch –...
  • Page 2 STR-DG720 3 7 63 1515 0 General 1) Measured under the following conditions: Area code Power requirements Power requirements US, CND 120 V AC, 60 Hz Area code Power requirements AEP, UK 230 V AC, 50 Hz US, CND...
  • Page 3: Leakage Test

    WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS TIONNEMENT. NE REMPLACER CES COM- POSANTS QUE MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON- NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
  • Page 4: Table Of Contents

    STR-DG720 3 7 63 1515 0 TABLE OF CONTENTS 1. GENERAL Description and location of parts (US, Canadian model) ... 5 Description and location of parts (AEP, UK model) ..7 2. DISASSEMBLY 2-1. Case ................... 10 2-2. Back Panel Section ............11 2-3.
  • Page 5: General

    STR-DG720 SECTION 1 This section is extracted GENERAL 3 7 63 1515 0 from instruction manual. • US, Canadian model Name Function Getting Started L 2CH Press to select a sound field (page 51). A.F.D. Description and location of parts...
  • Page 6 Remote commander Connects to the You can use the supplied RM-AAU021 speakers (page 15). Remote Commander to operate the receiver and to control the Sony audio/video components that the remote is assigned to operate (page 81). SAT IN DVD IN...
  • Page 7: Description And Location Of Parts (aep, Uk Model)

    STR-DG720 3 7 63 1515 0 • AEP, UK model Notes Name Function • Some functions explained in this section may not Getting Started Press to input the decimal work depending on the model. point for channel numbers of •...
  • Page 8: Str-dg720 Qq

    AV ?/1 (page 17–24). Press to turn on or off the menu operations. Red (R) and to control the Sony audio/video (on/standby) Sony audio/video components components that the remote is assigned to that the remote is assigned to AUTO CAL...
  • Page 9 STR-DG720 3 7 63 1515 0 Name Function Name Function Name Function T Numeric M MENU/HOME Press to display the menu of O TV Press to Press TV and the button with buttons – preset/tune to preset the VCR, DVD player,...
  • Page 10: Disassembly

    STR-DG720 SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note: This set can be disassemble according to the following sequence. 2-1. CASE (Page 10) 2-2. BACK PANEL SECTION (Page 11) 2-6. STANDBY BOARD 2-3. FRONT PANEL SECTION 2-4. DIGITAL BOARD...
  • Page 11: Back Panel Section

    STR-DG720 3 7 63 1515 0 2-2. BACK PANEL SECTION back panel section four screws (+BVTP 3 × 8) screw (+BVTP 3 × 8) wire (flat type) (17 core) CN102 (5P) (CN3511) four screws (+BVTP 3 × 8) CN3509 (5P) three screws (+BVTP 3 ×...
  • Page 12: Digital Board

    STR-DG720 3 7 63 1515 0 2-4. DIGITAL BOARD CNP512 (3P) CNP503 (7P) CNP505 (8P) DIGITAL board screw (+BVTP 3 × 8) CNP411 CNP410 L 13942296513 2-5. MAIN BOARD SECTION CNP940 (6P) screw (+BV3 (3-CR)) CNP921 (3P) two screws...
  • Page 13: Standby Board

    STR-DG720 3 7 63 1515 0 2-6. STANDBY BOARD STANDBY board screw CNP901 (3P) (+BVTP 3 × 8) CN4001 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 14: Test Mode

    STR-DG720 SECTION 3 TEST MODE 3 7 63 1515 0 AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE KEY CHECK MODE (US, Canadian model only) * Button check * Either the 9 kHz step or 10 kHz step can be selected for the AM * Procedure: channel step.
  • Page 15: Fm Tuner Check

    STR-DG720 SECTION 4 FM TUNER CHECK 3 7 63 1515 0 DCAC FACTORY TEST MODE FM AUTO STOP CHECK generator DCAC Factory Test mode have two stages: 1. DCAC DSP Data Line Checking 2. DCAC board Checking OUT (75 Ω)
  • Page 16: Diagrams

    STR-DG720 SECTION 5 DIAGRAMS 3 7 63 1515 0 • Circuit Boards Location DCDC CONVERTER board STANDBY board HDMI RE board XM board (US, Canadian POWER board model only) DCAC board VIDEO board HEADPHONE board DIGITAL board VIDEO 2 board...
  • Page 17: Block Diagram - Tuner/audio Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-1. BLOCK DIAGRAM – TUNER/AUDIO Section – VIDEO 2 IN/ PORTABLE AV IN VIDEO 1 SA-CD/CD/CD-R SA-CD/CD/CD-R VIDEO 1 AUDIO AUDIO IN AUDIO IN AUDIO IN AUDIO OUT –7V...
  • Page 18: Block Diagram - Digital Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-2. BLOCK DIAGRAM – DIGITAL Section – DSP EX3 IC1009 HDMI RE LRCK SECTION SD0-SD3 DPSIC +1.2V (Page 20) HDMI ERROR DPSID VDDI HDMI SPDIF DPSIE IC1401 +3.3V VDDE...
  • Page 19: Block Diagram - Video Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-3. BLOCK DIAGRAM – VIDEO Section – COMPONENT VIDEO SELECT IC220 V+1,+2 +5V-3 6dB AMP CH1 IN1 J220 (2/2) J221 CH1 OUT 75Ω CH1 IN2 –1 DRIVER CH1 IN3 –7...
  • Page 20: Block Diagram - Hdmi Re Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-4. BLOCK DIAGRAM – HDMI RE Section – SWITCHER EEPROM DATA SELECT EEPROM DATA BUFFER IC3503 IC3521 IC3509 – IC3507 HDMI SPDIF 3 SDAA DIGITAL SDA_SINK SDAB HDMI ERROR...
  • Page 21: Block Diagram - Xm Section (us, Canadian Model)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-5. BLOCK DIAGRAM – XM Section (US, Canadian model) – XM DIGITAL TRANSCEIVER IC102 XM MIXMO KEY/DISPLAY SCTXOUT SCRXIN XM MOXMI SECTION (Page 22) 18 COMRXP D/A CONVERTER 19 COMRXM...
  • Page 22: Block Diagram - Key/display Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-6. BLOCK DIAGRAM – KEY/DISPLAY Section – FL DISPLAY DRIVER SYSTEM J2000 MIC AMP IC100 CONTROL AUTO CAL MIC IC2000 IC1010 (5/6) BUFFER 115 DCAC IN IC101 SEG1 FL_LAT...
  • Page 23: Block Diagram - Power Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-7. BLOCK DIAGRAM – POWER Section – J790 R–CH PHONES RY375 PRE DRIVER RELAY IC700 DRIVER TB601 Q375 +VOUT1 IN 1 DRIVE –VOUT1 FL–CH DRIVE POWER AMP Q701–704 RY350 FRONT A FR–CH...
  • Page 24 STR-DG720 3 7 6 3 1 5 1 5 0 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. • Waveforms – DIGITAL Board – – HDMI RE Board – – XM Board (US, Canadian model) –...
  • Page 25: Printed Wiring Boards - Main Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-8. PRINTED WIRING BOARDS – MAIN Section – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. SPEAKERS IMPEDANCE USE 8-16Ω TB601 FRONT A J403...
  • Page 26: Schematic Diagram - Main Section (1/3)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-9. SCHEMATIC DIAGRAM – MAIN Section (1/3) – • See page 48 for IC Block Diagrams. MAIN BOARD (1/3) CNP411 DMPORT R+ JS3037 DMPORT L+ DMPORT R- DMPORT L-...
  • Page 27: Schematic Diagram - Main Section (2/3)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-10. SCHEMATIC DIAGRAM – MAIN Section (2/3) – • See page 48 for IC Block Diagrams. MAIN BOARD (2/3) Q551-554,601-604,651-654,701-704, Q561,562,611,612,661,662,711,712, Q570,620,670,720,770,820,870 Q350,355,360,365,370,375 Q751-754,801-804,851-854 Q761,762,811,812,861,862 OVERLOAD DETECT RELAY DRIVER...
  • Page 28: Schematic Diagram - Main Section (3/3)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-11. SCHEMATIC DIAGRAM – MAIN Section (3/3) – (Page 26) (Page 27) MAIN BOARD (1/3) MAIN BOARD (2/3) MAIN BOARD (3/3) CNP912 R2 RETURN GND HP_GND(NC) STANDBY -15V BOARD...
  • Page 29: Printed Wiring Board - Digital Section (1/2)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-12. PRINTED WIRING BOARD – DIGITAL Section (1/2) – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. (Page 34) (Page 40) (Page 36) VIDEO...
  • Page 30: Printed Wiring Board - Digital Section (2/2)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-13. PRINTED WIRING BOARD – DIGITAL Section (2/2) – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. ANTENNA DCDC CONVERTER DCDC CONVERTER 75Ω BOARD...
  • Page 31: Schematic Diagram - Digital Section (1/3)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-14. SCHEMATIC DIAGRAM – DIGITAL Section (1/3) – • See page 24 for Waveforms. • See page 49 for IC Block Diagrams. • See page 58 for IC Pin Function Descriptions.
  • Page 32: Schematic Diagram - Digital Section (2/3)

    STR-DG720 3 7 6 3 1 5 1 5 0 • See page 24 for Waveforms. Note: When IC1131 on the DIGITAL board are damaged, exchange the new DIGITAL board for the DIGITAL • See page 50 for IC Block Diagrams.
  • Page 33: Schematic Diagram - Digital Section (3/3)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-16. SCHEMATIC DIAGRAM – DIGITAL Section (3/3) – • See page 50 for IC Block Diagrams. (Page 31) DIGITAL BOARD (1/3) DIGITAL BOARD (3/3) CLINK_DET VDD1 DACCLK/XMDACMC,DAC_ATC, DAC_DI,DAC_MUTE CLINK_RX...
  • Page 34: 5-17. Printed Wiring Boards - Video Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-17. PRINTED WIRING BOARDS – VIDEO Section – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. J220 J221 COMPONENT VIDEO SAT IN DVD IN...
  • Page 35: 5-18. Schematic Diagram - Video Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-18. SCHEMATIC DIAGRAM – VIDEO Section – • See page 51 for IC Block Diagrams. VIDEO 2 BOARD J298 VIDEO CNP201 C299 VIDEO 2 IN/PORTABLE AV IN 220p MAIN...
  • Page 36: Printed Wiring Board - Hdmi Re Section (1/2)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-19. PRINTED WIRING BOARD – HDMI RE Section (1/2) – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. HDMI BD IN DVD IN SAT IN...
  • Page 37: Printed Wiring Board - Hdmi Re Section (2/2)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-20. PRINTED WIRING BOARD – HDMI RE Section (2/2) – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. HDMI RE BOARD (SIDE B) R3502...
  • Page 38: Schematic Diagram - Hdmi Re Section (1/2)

    STR-DG720 3 7 6 3 1 5 1 5 0 • See page 24 for Waveforms. Note: When IC3511 on the HDMI RE board are damaged, • See page 52 for IC Block Diagrams. exchange the new HDMI RE board for the HDMI RE 5-21.
  • Page 39: Schematic Diagram - Hdmi Re Section (2/2)

    STR-DG720 3 7 6 3 1 5 1 5 0 • See page 24 for Waveforms. Note: When IC3513 on the HDMI RE board are damaged, • See page 50 for IC Block Diagrams. exchange the new HDMI RE board for the HDMI RE 5-22.
  • Page 40: Printed Wiring Board - Xm Section (us, Canadian Model)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-23 PRINTED WIRING BOARD – XM Section (US, Canadian Model) – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. J101 XM BOARD (SIDE B)
  • Page 41: Schematic Diagram - Xm Section (us, Canadian Model)

    STR-DG720 3 7 6 3 1 5 1 5 0 5-24 SCHEMATIC DIAGRAM – XM Section (US, Canadian Model) – • See page 24 for Waveforms. • See page 55 for IC Block Diagrams. CN101 XM BOARD XM_RESET XM_MIXMO...
  • Page 42: 5-25. Printed Wiring Boards - Dcac, Power Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-25. PRINTED WIRING BOARDS – DCAC, POWER Section – 5-26. SCHEMATIC DIAGRAM – DCAC, POWER Section – • See page 16 for Circuit Boards Location. • : Uses unleaded solder.
  • Page 43: Printed Wiring Board - Display Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-27 PRINTED WIRING BOARDS – DISPLAY Section – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. DISPLAY BOARD CATEGORY CL201 ANALOG MODE – TP102...
  • Page 44: Schematic Diagram - Display Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-28 SCHEMATIC DIAGRAM – DISPLAY Section – • See page 56 for IC Block Diagram. RV102 DISPLAY BOARD R101 R107 R106 R105 R104 R103 R102 2.2k 1.5k MASTER VOLUME...
  • Page 45: Printed Wiring Boards - Power Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-29 PRINTED WIRING BOARDS – POWER Section – • See page 16 for Circuit Boards Location. • : Uses unleaded solder. STANDBY BOARD D4001 B900 T904 US,CND C951 CL902...
  • Page 46: Schematic Diagram - Power Section

    STR-DG720 3 7 6 3 1 5 1 5 0 5-30 SCHEMATIC DIAGRAM – POWER Section – T901 POWER TRANSFORMER (MAIN) MAIN BOARD (3/3) CNP921 (Page 28) MAIN BOARD (3/3) CNP940 (Page 28) STANDBY BOARD R910 0.22 CNP910 1/2W...
  • Page 47: 5-31. Schematic Diagram - Dc-dc Converter Section

    STR-DG720 3 7 63 1515 0 5-31. SCHEMATIC DIAGRAM – DC-DC CONVERTER Section – • See page 57 for IC Block Diagrams. IC B/D DCDC CONVERTER BOARD IC4001 SI-8050S-LF1101 IC4001 +6.3V REG L4001 16.1 CN4101 100uH CL001 L4000 +6.3V...
  • Page 48 STR-DG720 3 7 63 1515 0 • IC Block Diagrams IC400 BD3471KS2 (MAIN BOARD (1/3)) INL2 AGND INR2 FRIN2 INL1 FLIN2 INR1 SWIN2 Multi2 CIN2 AGND Multi1 SBLIN1 SRIN2 SLIN2 SBRIN1 Mode Mode Mode Mode SLIN1 SBRIN2 selector selector...
  • Page 49 STR-DG720 3 7 63 1515 0 IC1301 LC89056W-E (DIGITAL BOARD (1/3)) 12 11 10 9 8 7 6 XMODE CKSEL1 CKSEL0 DOSEL1 44 DOSEL0 CKOUT DVDD DGND INPUT LRCK MODE1 DATAO MODE0 XSTATE 39 XSEL DGND DVDD DATA X'TAL1...
  • Page 50 STR-DG720 3 7 63 1515 0 IC1013 SI-3033KM-TL (DIGTAL BOARD (2/3)) IC3526 SI-3033KM-TL (HDMI RE BOARD (2/2)) IC3527 SI-3033KM-TL (HDMI RE BOARD (2/2)) IC1012 SI-3050KM-TL (DIGITAL BOARD (3/3)) – – IC1401 PCM1808PWR (DIGITAL BOARD (3/3)) Serial LRCK Interface DOUT...
  • Page 51 STR-DG720 3 7 63 1515 0 IC1452 WM8768GEDS/R (DIGITAL BOARD (3/3)) AVDD MODE AGND VO3R STEREO PASS FILTER VO3L LRCK VO2R DVDD STEREO AUDIO PASS INTERFACE FILTER VO2L DGND & DIGITAL DIN1 FILTERS VO1R STEREO PASS DIN2 FILTER VO1L...
  • Page 52 STR-DG720 3 7 63 1515 0 IC220 NJM2586AM (VIDEO BOARD) 75Ω CH1 IN1 CH1 OUT DRIVER BIAS CONT1 75Ω CH1 IN2 CH2 OUT DRIVER BIAS CONT1 CONT2 75Ω CH3 OUT CH1 IN3 DRIVER BIAS CONT1 CH2 IN1 CH3 IN1...
  • Page 53 STR-DG720 3 7 63 1515 0 IC3503 TMDS341APFCR (HDMI RE BOARD (1/2)) 80 79 RX W/EQ RX W/EQ RX W/EQ RX W/EQ SDA1 RX W/EQ SCL1 RX W/EQ RX W/EQ RX W/EQ RX W/EQ RX W/EQ RX W/EQ RX W/EQ...
  • Page 54 STR-DG720 3 7 63 1515 0 IC3513 SII9030CTU-7 (HDMI RE BOARD (2/2)) HSYNC 60 CGND VSYNC 59 CVCC18 VIDEO DATA CAPTURE / DE GEN / 656 LOGIC BLOCK CGND 58 D14 CVCC18 57 D15 56 D16 SPDIF 55 D17...
  • Page 55 STR-DG720 3 7 63 1515 0 IC102 F2602E-01-TR (XM BOARD) HIGH SPEED I2SDATA 24 VSS DATA PORT 23 COMTXP (HSDP) I2SSCLK 22 COMTXM 21 VSS I2SLRCLK 20 VDD 19 COMRXM I2SOCLK 18 COMRXP COMM ENGINE 17 VDD SAIICLK 16 VSS...
  • Page 56 STR-DG720 3 7 63 1515 0 IC100 PT6315 (DISPLAY BOARD) Grid driver Multiplexed driver GRID10 Command decoder GRID11 Display memory SEG17 24 bits x 12 words Timing generator key scan DOUT SEG16 Key data memory Serial SEG15 (2 x 16 bits)
  • Page 57 STR-DG720 3 7 63 1515 0 IC4001 SI-8050S-LF1101 (DCDC CONVERTER BOARD) OVER REGULATOR CURRENT PROTECTOR LATCH RESET & DRIVER OVER HEAT – PROTECTOR COMPARATOR – VREF ERROR AMP IC4100 SI-8033S (DCDC CONVERTER BOARD) OVER CURRENT REGULATOR PROTECTOR LATCH RESET &...
  • Page 58 STR-DG720 3 7 63 1515 0 • IC Pin Function Descriptions DIGITAL BOARD (1/3) IC1009 ADSP21266SKSTZ-2C (DSP EX3) Pin No. Pin Name Description VDDINT — Power supply pin (+1.2 V) CLKCFG0 Clock frequency setting signal input 0 (Fixed at L)
  • Page 59 STR-DG720 3 7 63 1515 0 Pin No. Pin Name Description DPSOB DAI_ PCM audio signal output P7(SL&SR) VDDINT — Power supply pin (+1.2 V) — Ground VDDINT — Power supply pin (+1.2 V) — Ground DPSOC DAI_ PCM audio signal output P8(C&SW)
  • Page 60 STR-DG720 3 7 63 1515 0 Pin No. Pin Name Description RESET System reset signal input from SYSTEM CONTROL IC SPIDS Serial data latch pulse signal input from SYSTEM CONTROL IC — Ground VDDINT — Power supply pin (+1.2 V)
  • Page 61 STR-DG720 3 7 63 1515 0 DIGITAL BOARD (2/3) IC1010 MB91353APMT-G-117E1 (SYSTEM CONTROL) Pin No. Pin Name Description DAC CLK/XMDACMC Clock signal output for XM DAC IC (US, Canadian model) or 8CH DAC IC (AEP, UK model) XMDACMS Serial latch signal output for XM DAC IC (US, Canadian model)
  • Page 62 STR-DG720 3 7 63 1515 0 Pin No. Pin Name Description RESET_TRG Reset trigger signal input DIR_DATA0 Serial data input from DIR IC DSP RESET System reset signal output for DSP EX3 IC DSP SPIDS(LAT) Serial data latch pulse signal output for DSP EX3 IC...
  • Page 63 STR-DG720 3 7 63 1515 0 Pin No. Pin Name Description MODEL Model select signal input (Fixed at L) VACS_CTRL Not used (Fixed at L) NO USE Not used (Connect to VSS) L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 64 STR-DG720 3 7 63 1515 0 HDMI RE BOARD (1/2) IC3511 SII9011CLU (HDMI RX) Pin No. Pin Name Description VSYNC Vertical synchronize signal output for HDMI TX. 2 to 5 QO23 to QO20 — Not used (Open) IOGND —...
  • Page 65 STR-DG720 3 7 63 1515 0 Pin No. Pin Name Description IOVCC — Power supply pin (+3.3 V) IOGND — Ground MCLK Audio master clock signal output for DSP and HDMI TX. CGND — Ground CVCC18 — Power supply pin (+1.8 V) AUDPVCC18 —...
  • Page 66 STR-DG720 3 7 63 1515 0 HDMI RE BOARD (2/2) IC3513 SII9030CTU-7 (HDMI TX) Pin No. Pin Name Description HSYNC Horizontal synchronize signal input from HDMI RX. VSYNC Vertical synchronize signal input from HDMI RX. CGND — Ground CVCC18 —...
  • Page 67 STR-DG720 3 7 63 1515 0 Pin No. Pin Name Description 75 to 79 D4 to D0 Serial data input 4 to 0 from HDMI RX and video processor. Data enable signal input from HDMI RX. L 13942296513 u163...
  • Page 68 STR-DG720 3 7 63 1515 0 HDMI RE BOARD (2/2) IC3519 M30620FCPGP-RSX01 (HDMI CONTROL) Pin No. Pin Name Description 1 to 5 Not used (Open) BYTE Not used (Connect to VSS) CNVSS Not used (Fixed at L) 8, 9...
  • Page 69 STR-DG720 3 7 63 1515 0 Pin No. Pin Name Description VREF — Power supply pin (+3.3 V) AVCC — Power supply pin (+3.3 V) 98 to 100 Not used (Open) L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 70: Exploded Views

    STR-DG720 SECTION 6 EXPLODED VIEWS 3 7 63 1515 0 Note: • -XX and -X mean standardized parts, so • The mechanical parts with no reference The components identifi ed by mark 0 they may have some difference from the...
  • Page 71: Front Panel Section

    STR-DG720 3 7 63 1515 0 6-2. FRONT PANEL SECTION not supplied not supplied not supplied (DCAC board) (POWER board) (HEADPHONE board) not supplied (VIDEO 2 board) FL101 L 13942296513 supplied with RV101, RV103 supplied with RV102 Ref. No.
  • Page 72: Back Panel Section

    STR-DG720 3 7 63 1515 0 6-3. BACK PANEL SECTION not supplied not supplied L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-828-951-11 WIRE (FLAT TYPE) (9 CORE) (US,CND) 9 108 A-1438-372-A HDMI RE BOARD, COMPLETE (for SERVICE)
  • Page 73: Chassis Section

    STR-DG720 3 7 63 1515 0 6-4. CHASSIS SECTION not supplied (DCDC CONVERTER board) not supplied (WIRE ROUTE board) F4002 F4001 F901 Q854 Q804 Q853 Q604 Q603 Q754 Q803 Q753 Q554 Q704 Q553 Q703 Q654 T901 Q653 not supplied...
  • Page 74: Electrical Parts List

    STR-DG720 SECTION 7 DCAC DCDC CONVERTER ELECTRICAL PARTS LIST 3 7 63 1515 0 Note: The components identifi ed by mark 0 • Due to standardization, replacements in • CAPACITORS or dotted line with mark 0 are critical for uF: μF...
  • Page 75 STR-DG720 DCDC CONVERTER DIGITAL 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R4002 1-216-819-11 METAL CHIP 1/10W C1076 1-126-933-11 ELECT 100uF R4100 1-216-823-11 METAL CHIP 1.5K 1/10W C1077 1-125-777-11 CERAMIC CHIP 0.1uF...
  • Page 76 STR-DG720 DIGITAL 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C1187 1-165-722-11 ELECT 100uF C1465 1-112-083-11 ELECT 100uF C1191 1-125-777-11 CERAMIC CHIP 0.1uF C1468 1-126-964-11 ELECT 10uF C1254 1-162-970-11 CERAMIC CHIP 0.01uF...
  • Page 77 IC1351 6-600-466-01 IC TORX147L(SONY) D1001 8-719-053-18 DIODE 1SR154-400TE-25 (DIGITAL (ASSIGNABLE) SAT IN (OPTICAL)) D1003 8-719-049-09 DIODE 1SS367-T3SONY IC1352 6-600-466-01 IC TORX147L(SONY) (TV IN (OPTICAL)) D1004 8-719-049-09 DIODE 1SS367-T3SONY D1106 8-719-060-48 DIODE RB751V-40TE-17 IC1401 6-710-554-01 IC PCM1808PWR D1107 6-501-817-01 DIODE MA2J1110GLS0...
  • Page 78 STR-DG720 DIGITAL 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R1041 1-216-809-11 METAL CHIP 1/10W R1128 1-216-809-11 METAL CHIP 1/10W R1042 1-216-809-11 METAL CHIP 1/10W R1129 1-216-809-11 METAL CHIP 1/10W...
  • Page 79 STR-DG720 DIGITAL DISPLAY 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R1260 1-216-821-11 METAL CHIP 1/10W R1466 1-216-821-11 METAL CHIP 1/10W R1261 1-216-821-11 METAL CHIP 1/10W R1468 1-216-832-11 METAL CHIP 8.2K...
  • Page 80 STR-DG720 DISPLAY HDMI RE 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C145 1-100-566-11 CERAMIC CHIP 0.1uF S105 1-771-410-21 SWITCH, TACTILE (MUSIC) C147 1-162-960-11 CERAMIC CHIP 220PF S106 1-771-410-21 SWITCH, TACTILE (MOVIE)
  • Page 81 STR-DG720 HDMI RE 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C3549 1-107-826-11 CERAMIC CHIP 0.1uF CN3510 1-784-859-51 CONNECTOR, FFC (LIF(NON-ZIF)) 7P C3550 1-107-826-11 CERAMIC CHIP 0.1uF CN3511 1-820-116-41 CONNECTOR, FFC/FPC 17P...
  • Page 82 STR-DG720 HDMI RE 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R3521 1-216-833-11 METAL CHIP 1/10W R3605 1-216-833-11 METAL CHIP 1/10W R3524 1-216-833-11 METAL CHIP 1/10W R3608 1-216-805-11 METAL CHIP...
  • Page 83 STR-DG720 HDMI RE HEADPHONE MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * RB3503 1-234-723-11 RES, NETWORK 75X4 (1005) C552 1-162-927-11 CERAMIC CHIP 100PF * RB3504 1-234-723-11 RES, NETWORK 75X4 (1005)
  • Page 84 STR-DG720 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C758 1-162-815-11 CERAMIC 47PF 500V CC05 1-162-927-11 CERAMIC CHIP 100PF C759 1-162-815-11 CERAMIC 47PF 500V (AEP,UK) C761 1-162-960-11 CERAMIC CHIP 220PF...
  • Page 85 STR-DG720 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D561 6-501-817-01 DIODE MA2J1110GLS0 < TRANSISTOR > D570 6-501-817-01 DIODE MA2J1110GLS0 D611 6-501-817-01 DIODE MA2J1110GLS0 Q301 8-729-620-07 TRANSISTOR 2SC3052EF-T1-LEF D620...
  • Page 86 STR-DG720 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R326 1-216-840-11 METAL CHIP 1/10W 0 R511 1-215-889-00 METAL OXIDE R327 1-216-833-11 METAL CHIP 1/10W (US,CND) R328 1-216-821-11 METAL CHIP...
  • Page 87 STR-DG720 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R659 1-249-405-11 CARBON 1/4W R778 1-249-389-11 CARBON 1/4W R660 1-249-405-11 CARBON 1/4W R779 1-249-393-11 CARBON 1/4W R661 1-216-214-00 RES-CHIP 4.7K...
  • Page 88 STR-DG720 MAIN POWER STANDBY 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R3022 1-218-887-11 METAL CHIP 0.5% 1/10W A-1433-572-A STANDBY BOARD, COMPLETE (US,CND) R3023 1-216-841-11 METAL CHIP 1/10W A-1433-573-A STANDBY BOARD, COMPLETE (AEP,UK)
  • Page 89 STR-DG720 STANDBY VIDEO VIDEO 2 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R991 1-216-837-11 METAL CHIP 1/10W J221 1-821-278-12 JACK, PIN 3P (COMPONENT VIDEO SAT IN) R993 1-216-833-11 METAL CHIP 1/10W <...
  • Page 90 STR-DG720 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C118 1-164-936-11 CERAMIC CHIP 680PF < CONNECTOR > C119 1-125-777-11 CERAMIC CHIP 0.1uF C120 1-164-942-11 CERAMIC CHIP 0.0068uF J101 1-793-642-21 CONNECTOR (USB) (4P), SQUARE (XM)
  • Page 91 STR-DG720 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MISCELLANEOUS ACCESSORIES ************** ************ 1-829-004-11 WIRE (FLAT TYPE) (19 CORE) 1-480-587-11 REMOTE COMMANDER (RM-AAU023) 1-828-951-11 WIRE (FLAT TYPE) (9 CORE) (US,CND)
  • Page 92 STR-DG720 3 7 63 1515 0 REVISION HISTORY Checking the version allows you to jump to the revised page. Also, clicking the version at the top of the revised page allows you to jump to the next revised page.

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