Sony STR-DH720 Service Manual

STR-DH720/DH720HP
SERVICE MANUAL
Ver. 1.2 2011.10
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.
9-890-560-03
Sony Corporation
2011J80-1
©
2011.10
Published by Sony EMCS (Malaysia) PG Tec
SPECIFICATIONS
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
MULTI CHANNEL AV RECEIVER
US Model
STR-DH720/DH720HP
Canadian Model
AEP Model
STR-DH720
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
INPUT SHORT (with sound fi eld and equalizer
3)
bypassed).
Weighted network, input level.
4)
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