Sony STR-DG820 Service Manual

SERVICE MANUAL

Ver. 1.0 2008.04
This receiver incorporates Dolby* Digital and Pro Logic Surround and the DTS** Digital Surround System.
* Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, Surround Ex, 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 & other U.S. and worldwide patents issued & pending. DTS is a registered trademark and the
DTS logos, Symbol, DTS-HD and DTS-HD Master Audio are trademarks of DTS, Inc. © 1996-2007 DTS,
Inc. All Rights Reserved.
This receiver incorporates High-Definition Multimedia Interface (HDMITM) technology.HDMI, the HDMI
logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.
XM Ready® is a registered trademark of XM Satellite Radio Inc. All rights reserved.
This product is manufactured under license from Neural Audio Corporation and THX Ltd. Sony Corporation
hereby grants the user a non-exclusive, non-transferable, limited right of use to this product under USA and
foreign patent, patent pending and other technology or trademarks owned by Neural Audio Corporation and THX
Ltd. "Neural Surround", "Neural Audio", "Neural" and "NRL" are trademarks and logos owned by Neural Audio
Corporation, THX is a trademark of THX Ltd., which may be registered in some jurisdictions. All rights reserved.
"x.v.Color" and "x.v.Color" logo are trademarks of Sony Corporation.
"BRAVIA" and are trademarks of Sony Corporation.
AUDIO POWER
SPECIFICATIONS (US model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 8 ohm loads, both channels driven, from
20 Hz – 20,000 Hz; rated 100 watts per
channel minimum RMS power, with no more
than 0.09% total harmonic distortion from 250
milliwatts to rated output.
Amplifier section
Models of area code U, CA
1)
Power Output
Minimum RMS Output Power
(8 ohms, 20 Hz – 20 kHz, THD 0.09%)
100 W + 100 W
Stereo Mode Output Power
(8 ohms, 1 kHz, THD 0.7%)
110 W + 110 W
Surround Mode Output Power
(8 ohms, 1 kHz, THD 10%)
150 W per channel
Models of area code CEL, CEK, ECE
Minimum RMS Output Power
(8 ohms, 20 Hz – 20 kHz, THD 0.09%)
85 W + 85 W
Sony Corporation
9-889-096-01
2008D05-1 Audio Business Group
© 2008.04 Published by Sony Techno Create Corporation

SPECIFICATIONS

Stereo Mode Output Power
(8 ohms, 1 kHz, THD 0.7%)
Surround Mode Output Power
(8 ohms, 1 kHz, THD 10%)
1)
Measured under the following conditions:
Area code
U, CA
CEL, CEK, ECE
2)
Reference power output for front, center, surround
and surround back speakers. Depending on the
sound field settings and the source, there may be
no sound output.
Frequency response
Analog
2)
Input
Analog
1)
STR-DG820
Digital (Coaxial) Impedance: 75 ohms
100 W + 100 W
2)
Digital (Optical)
140 W per channel
Output (analog)
AUDIO OUT
Power requirements
SUBWOOFER
120 V AC, 60 Hz
Equalizer
230 V AC, 50 Hz
Gain levels
3)
INPUT SHORT (with sound field and equalizer
bypassed).
4)
Weighted network, input level.
FM tuner section
10 Hz – 70 kHz,
Tuning range
+0.5/–2 dB (with sound
Antenna (aerial)
field and equalizer
Antenna (aerial) terminals
bypassed)
Intermediate frequency
Sensitivity: 500 mV/
50 kohms
3)
S/N : 96 dB
4)
(A, 500 mV )
MULTI CHANNEL AV RECEIVER
US Model
Canadian Model
AEP Model
UK Model
S/N: 100 dB
(A, 20 kHz LPF)
S/N: 100 dB
(A, 20 kHz LPF)
Voltage: 500 mV/
10 kohms
Voltage: 2 V/1 kohm
±10 dB, 1 dB step
87.5 MHz – 108.0 MHz
FM wire antenna (aerial)
75 ohms, unbalanced
10.7 MHz
– Continued on next page –