Sony STR-DH720 User Manual

SERVICE MANUAL
Published by Sony EMCS (Malaysia) PG Tec
Sony Corporation
MULTI CHANNEL AV RECEIVER
US Model
STR-DH720/DH720HP
Canadian Model
AEP Model
STR-DH720
STR-DH720/DH720HP
Ver. 1.2 2011.10
9-890-560-03
2011J80-1
©
2011.10
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(US model 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 harmonic distortion from 250 milliwatts to
rated output.
Amplifi er section
US model
1)
Minimum RMS Output Power
(8 ohms, 20 Hz – 20 kHz, THD 0.09%)
95 W + 95 W
Stereo Mode Output Power
(8 ohms, 1 kHz, THD 1%)
105 W + 105 W
Surround Mode Output Power
2)
(8 ohms, 1 kHz, THD 10%)
140 W per channel
CND model
1)
Minimum RMS Output Power
(8 ohms, 20 Hz – 20 kHz, THD 0.09%)
85 W + 85 W
Stereo Mode Output Power
(8 ohms, 1 kHz, THD 1%)
105 W + 105 W
Surround Mode Output Power
2)
(8 ohms, 1 kHz, THD 10%)
140 W per channel
ECE model
1)
Minimum RMS Output Power
(8 ohms, 20 Hz – 20 kHz, THD 0.09%)
85 W + 85 W
Stereo Mode Output Power
(8 ohms, 1 kHz, THD 1%)
100 W + 100 W
Surround Mode Output Power
2)
(8 ohms, 1 kHz, THD 10%)
140 W per channel
1)
Measured under the following conditions:
Area Power requirements
US, CND 120 V AC, 60 Hz
ECE 230 V AC, 50 Hz
2)
Reference power output for front, center, surround,
surround back and front high speakers. Depending
on the sound fi eld settings and the source, there
may be no sound output.
Frequency response
Analog 10 Hz – 70 kHz,
+0.5/–2 dB (with
sound fi eld and
equalizer bypassed)
Input
Analog Sensitivity: 500 mV/
50 kohms
S/N
3)
: 96 dB
(A, 500 mV
4)
)
Digital (Coaxial) Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)
Digital (Optical) S/N: 100 dB
(A, 20 kHz LPF)
Output (Analog)
AUDIO OUT Voltage: 500 mV/
1 kohms
SUBWOOFER Voltage: 2 V/1 kohm
Equalizer
Gain levels ±6 dB, 1 dB step
3)
INPUT SHORT (with sound fi eld and equalizer
bypassed).
4)
Weighted network, input level.
SPECIFICATIONS
This receiver incorporates Dolby* Digital and ProLogic Surround and
the DTS** Digital Surround System.
* 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; 7,212,872;
7,333,929; 7,392,195; 7,272,567 & other U.S. and worldwide
patents issued & pending. DTS and the Symbol are registered
trademarks, & DTS HD, DTS-HD Master Audio, and the DTS logos
are trademarks of DTS, Inc. Product includes software.© DTS, Inc.
All Rights Reserved.
This receiver incorporates High-Definition Multimedia Interface
(HDMI™) technology. HDMI, the HDMI logo and High-Definition
Multimedia Interface are trademarks or registered trademarks of HDMI
Licensing LLC in the United States and other countries.
“x.v.Color (x.v.Colour)” and “x.v.Color (x.v.Colour)” logo are trademarks
of Sony Corporation.
“BRAVIA” is a trademark of Sony Corporation.
“PlayStation” is a registered trademark of Sony Computer Entertainment
Inc.
The font type (Shin Go R) installed in this receiver is provided by
MORISAWA & COMPANY LTD. These names are the trademarks of
MORISAWA & COMPANY LTD., and the copyright of the font also
belongs to MORISAWA & COMPANY LTD.
iPhone, iPod, iPod classic, iPod nano, and iPod touch are trademarks
of Apple Inc., registered in the U.S. and other countries.
All other trademarks and registered trademarks are of their respective
holders. In this manual, ™ and ® marks are not specifi ed.
“Made for iPod” and “Made for iPhone” mean that an electronic
accessory has been designed to connect specifi cally to iPod or iPhone,
respectively, and has been certified by the developer to meet Apple
performance standards.
Apple is not responsible for the operation of this device or its compliance
with safety and regulatory standards. Please note that the use of this
accessory with iPod or iPhone may affect wireless performance.
MPEG Layer-3 audio coding technology and patents licensed from
Fraunhofer IIS and Thomson.
“WALKMAN” is a registered trademark of Sony Corporation.
“MICROVAULT” is a trademark of Sony Corporation.
Windows Media is either a registered trademark or trademark of Microsoft
Corporation in the United States and/or other countries.
– Continued on next page –

Sony STR-DH720 Specifications

General

Display	VFL
Equalizer	Yes
Product color	Black
Audio decoders	Dolby Digital, Dolby Digital EX, Dolby Pro Logic, Dolby Pro Logic II, Dolby Pro Logic IIx, DTS 96/24, DTS Neo:6, DTS-ES (Discrete 6.1), DTS-ES (Matrix 6.1)
Apple docking compatibility	Not supported
Graphical user interface (GUI)	No
Audio output channels	7.1 channels
Power output per channel (1KHz@8 Ohm)	200 W
Power output per channel (20-20KHz@8 Ohm)	170 W
HDMI in	3
Audio (L/R) in	5
Digital audio coaxial in	1
Digital audio optical in	2
Ethernet LAN (RJ-45) ports	0
Multichannel audio input type	RCA, Terminals
Connectivity technology	Wired
Speakers connectivity type	Clamp terminals
Wi-Fi	-
Supported radio bands	AM, FM
Preset stations quantity	60
Optical drive type	Blu-Ray player

Weight and Dimensions

Depth	322 mm
Width	430 mm
Height	157.5 mm
Weight	8000 g

Summary

SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION

Details power output and harmonic distortion for US models with 8-ohm loads.

Area Power requirements

Specifies power requirements based on geographical area.

Frequency response

Outlines the analog frequency response range and tolerance.

Input

Lists input specifications for analog and digital signals.

Output (Analog)

Provides voltage and impedance for analog audio outputs.

SAFETY CHECK-OUT (US MODEL)

LEAKAGE TEST

Procedures for performing an AC leakage test on exposed metal parts.

SERVICING NOTES

MODEL IDENTIFICATION

Identifies models and their corresponding part numbers.

Notes on chip component replacement

Guidelines for replacing chip components, including precautions.

UNLEADED SOLDER

Information on using unleaded solder and its characteristics.

Special Component Notice

Notice regarding components identified by mark 9 for confidential information.

DISASSEMBLY

2-1. CASE

Procedure for disassembling the main case of the unit.

2-2. D-VIDEO BOARD

Procedure for disassembling the D-VIDEO board.

2-3. FRONT PANEL SECTION

Procedure for disassembling the front panel section.

2-4. BACK PANEL SECTION

Procedure for disassembling the back panel section.

2-5. DIGITAL BOARD

Procedure for disassembling the DIGITAL board.

2-6. MAIN BOARD SECTION

Procedure for disassembling the main board section.

2-7. MAIN BOARD

Procedure for disassembling the MAIN board.

TEST MODE

AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE

Selects the AM channel step for US and Canadian models.

VACUUM FLUORESCENT DISPLAY TEST MODE

Tests all segments of the vacuum fluorescent display.

SOUND FIELD CLEAR MODE

Clears preset sound fields, used before returning product.

SOFTWARE VERSION DISPLAY MODE

Displays the software version and destination.

KEY CHECK MODE

Checks the functionality of each button on the unit.

SWAP ALL MODE

Swaps signals to all channels for speaker output testing.

INITIALIZE MODE

Resets all preset contents to default values.

PROTECTOR AUTO OFF

Disables the auto-off function after protector activation.

HISTORY MODE

Procedure

Details how to access and navigate the history mode.

DCAC TEST MODE

Procedure

Explains how to access source or microphone modes.

USB UPDATE TEST MODE

Procedure

Steps to update main MCU, video MCU, DSP, and software via USB.

USB UPDATE VERSION MODE

Procedure

Displays the version number to check for USB updates.

ELECTRICAL ADJUSTMENT

VIDEO CALIBRATION ADJUSTMENT

Decides the standard of the video input signal for calibration.

2-1. Connection

Illustrates the connection setup for video calibration.

2-2. Procedure for color pattern generator

Steps to adjust video signals using a color pattern generator.

2-3. Procedure for Blu-ray Disc player

Steps to adjust video signals using a Blu-ray Disc player.

FM AUTO STOP CHECK

Procedure

Checks if FM signals are detected and automatic scanning stops correctly.

DIAGRAMS

5-1. BLOCK DIAGRAM – TUNER/AUDIO Section

Shows the block diagram for the tuner and audio sections.

5-2. BLOCK DIAGRAM – DIGITAL Section

5-3. BLOCK DIAGRAM – STANDBY-A VIDEO PC Section

5-4. BLOCK DIAGRAM – D-VIDEO Section

5-5. BLOCK DIAGRAM – KEY/DISPLAY/USB Section

5-6. BLOCK DIAGRAM – POWER KEY Section

5-7. PRINTED WIRING BOARD – DIGITAL Board (Side A)

5-8. PRINTED WIRING BOARD – DIGITAL Board (Side B)

5-9. SCHEMATIC DIAGRAM – DIGITAL Board (1/4)

5-10. SCHEMATIC DIAGRAM – DIGITAL Board (2/4)

5-11. SCHEMATIC DIAGRAM – DIGITAL Board (3/4)

5-12. SCHEMATIC DIAGRAM – DIGITAL Board (4/4)

5-13. PRINTED WIRING BOARD – MAIN Board

5-14. SCHEMATIC DIAGRAM – MAIN Board (1/4)

5-15. SCHEMATIC DIAGRAM – MAIN Board (2/4)

5-16. SCHEMATIC DIAGRAM – MAIN Board (3/4)

5-17. SCHEMATIC DIAGRAM – MAIN Board (4/4)

5-18. PRINTED WIRING BOARD – D-VIDEO Board (Side A)

5-19. PRINTED WIRING BOARD – D-VIDEO Board (Side B)

5-20. SCHEMATIC DIAGRAM – D-VIDEO Board (1/4)

5-21. SCHEMATIC DIAGRAM – D-VIDEO Board (2/4)

5-22. SCHEMATIC DIAGRAM – D-VIDEO Board (3/4)

5-23. SCHEMATIC DIAGRAM – D-VIDEO Board (4/4)

5-24. PRINTED WIRING BOARD – STANDBY-A VIDEO PC Board

5-25. SCHEMATIC DIAGRAM – STANDBY-A VIDEO PC Board

5-26. PRINTED WIRING BOARDS – Panel Section

5-27. SCHEMATIC DIAGRAM – Panel Section

5-28. PRINTED WIRING BOARD – DCDC Board

5-29. SCHEMATIC DIAGRAM – DCDC Board

5-30. PRINTED WIRING BOARD – USB Board

5-31. SCHEMATIC DIAGRAM – USB Board

5-32. PRINTED WIRING BOARD – HEADPHONE Board

5-33. SCHEMATIC DIAGRAM – HEADPHONE Board

Provides the schematic diagram for the HEADPHONE board.

5-34. PRINTED WIRING BOARD – TEMP-SENSOR Board

Shows the component layout for the TEMP-SENSOR board.

5-35. SCHEMATIC DIAGRAM – TEMP-SENSOR Board

Provides the schematic diagram for the TEMP-SENSOR board.

IC Block Diagrams

IC2006 PCM9211PTR (DIGITAL BOARD (3/4))

Block diagram for IC2006 PCM9211PTR on the DIGITAL board.

IC2032 TC74VHC157FT (EKJ) (DIGITAL BOARD (1/4))

Block diagram for IC2032 TC74VHC157FT on the DIGITAL board.

IC2804 TC74VHC157FT (EKJ) (DIGITAL BOARD (3/4))

Block diagram for IC2804 TC74VHC157FT on the DIGITAL board.

IC3001 TC74VHC157FT (EKJ) (D-VIDEO BOARD (1/4))

Block diagram for IC3001 TC74VHC157FT on the D-VIDEO board.

IC2501 WM8768GEDS/R (DIGITAL BOARD (4/4))

Block diagram for IC2501 WM8768GEDS/R on the DIGITAL board.

IC2303 TC7WHU04FU (TE12R) (DIGITAL BOARD (3/4))

Block diagram for IC2303 TC7WHU04FU on the DIGITAL board.

IC4160 TC7WHU04FU (TE12R) (USB BOARD)

Block diagram for IC4160 TC7WHU04FU on the USB board.

IC2005 TC74VHC08FT (EL) (DIGITAL BOARD (3/4))

Block diagram for IC2005 TC74VHC08FT on the DIGITAL board.

IC2805 TC74VHC08FT (EL) (DIGITAL BOARD (3/4))

Block diagram for IC2805 TC74VHC08FT on the DIGITAL board.

IC152 PT6315 (DISPLAY BOARD)

IC3002 TC74VCX257FT (EL) (D-VIDEO BOARD (1/4))

IC3004 TC74VHC541FT (EKJ) (D-VIDEO BOARD (1/4))

IC3205 TC7PA53FU (TE85L.F) (D-VIDEO BOARD (2/4))

IC3206 TC74LCX74FT (EKJ) (D-VIDEO BOARD (2/4))

IC4100 BU81459KV-E2 (USB BOARD)

IC4101 NJM2903V (TE2) (USB BOARD)

IC400 BD3470KS2 (MAIN BOARD (3/4))

IC210 NJM2595M-TE2 (STANDBY-A VIDEO PC BOARD)

IC220 NJM2586AM (STANDBY-A VIDEO PC BOARD)

IC4100 BU81459KV-E2 (USB BOARD)

IC Pin Function Description - D-VIDEO BOARD (1/4) IC3000 MB91F627PMC-GE1 (HDMI CONTROLLER)

IC Pin Function Description - D-VIDEO BOARD (1/4) IC3000 MB91F627PMC-GE1 (HDMI CONTROLLER)

IC Pin Function Description - D-VIDEO BOARD (2/4) IC3201 FLI30502AC (VIDEO CONTROLLER)

IC Pin Function Description - D-VIDEO BOARD (2/4) IC3201 FLI30502AC (VIDEO CONTROLLER)

IC Pin Function Description - D-VIDEO BOARD (2/4) IC3201 FLI30502AC (VIDEO CONTROLLER)

IC Pin Function Description - D-VIDEO BOARD (2/4) IC3201 FLI30502AC (VIDEO CONTROLLER)

IC Pin Function Description - D-VIDEO BOARD (2/4) IC3201 FLI30502AC (VIDEO CONTROLLER)

IC Pin Function Description - DIGITAL BOARD (2/4) IC2105 MB90F058PF-G-JNE1 (SYSTEM CONTROL)

IC Pin Function Description - DIGITAL BOARD (2/4) IC2105 MB90F058PF-G-JNE1 (SYSTEM CONTROL)

IC Pin Function Description - DIGITAL BOARD (1/4) IC2801 ADSST-AVR-3010 (DSP)

IC Pin Function Description - DIGITAL BOARD (1/4) IC2801 ADSST-AVR-3010 (DSP)

IC Pin Function Description - DIGITAL BOARD (1/4) IC2801 ADSST-AVR-3010 (DSP)

IC Pin Function Description - DIGITAL BOARD (1/4) IC2801 ADSST-AVR-3010 (DSP)

SECTION 6 EXPLODED VIEWS

6-1. CASE SECTION

Exploded view of the unit's case section with part references.

6-2. DCDC BOARD

6-3. FRONT PANEL SECTION

6-4. BACK PANEL SECTION

6-5. CHASSIS SECTION

SECTION 7 ELECTRICAL PARTS LIST