DOWNLOAD Sony STR-DN840 Service Manual ↓ Size: 6.81 MB | Pages: 100 in PDF or view online for FREE

Model
STR-DN840
Pages
100
Size
6.81 MB
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PDF
Document
Service Manual
Brand
Device
Audio
File
str-dn840.pdf
Date

Sony STR-DN840 Service Manual ▷ View online

SERVICE MANUAL
Sony Corporation
Published by Sony EMCS (Malaysia) PG Tec
This receiver incorporates Dolby* Digital and 
Pro Logic Surround and the DTS** Digital Sur-
round System.
*  Manufactured under license from Dolby Labo-
ratories. Dolby, Pro Logic, Surround EX, and 
the double-D symbol are trademarks of Dolby 
Laboratories.
** Manufactured under license under U.S. Pat-
ent Nos: 5,956,674; 5,974,380; 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-HD, the Symbol, & 
DTS-HD and the Symbol together are regis-
tered trademarks & DTS-HD Master Audio 
is a trademark of DTS, Inc. Product includes 
software. © DTS, Inc. All Rights Reserved.
This receiver incorporates High-Defi nition Multi-
media Interface (HDMI™) technology. The terms 
HDMI and HDMI High-Defi nition  Multimedia 
Interface, and the HDMI Logo are trademarks or 
registered trademarks of HDMI Licensing LLC in 
the United States and other countries.
AirPlay, iPhone, iPod, iPod classic, iPod nano, 
and iPod touch are trademarks of Apple Inc., reg-
istered 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, respec-
tively, and has been certifi ed by the developer to 
meet Apple performance standards.
Apple is not responsible for the operation of this 
device or its compliance with safety and regula-
tory standards. Please note that the use of this ac-
cessory with iPod or iPhone may affect wireless 
performance.
DLNA™, the DLNA Logo and DLNA CERTI-
FIED™ are trademarks, service marks, or cer-
tifi cation marks of the Digital Living Network 
Alliance.
“Sony Entertainment Network” logo and “Sony 
Entertainment Network” are trademarks of Sony 
Corporation.
Wake-on-LAN is a trademark of International 
Business Machines Corporation in the United 
States.
Windows and the Windows logo are either reg-
istered trademarks or trademarks of Microsoft 
Corporation in the United States and/or other 
countries.
This product is protected by certain intellectual 
property rights of Microsoft Corporation. Use 
or distribution of such technology outside of this 
product is prohibited without a license from Mi-
crosoft or an authorized Microsoft subsidiary.
MPEG Layer-3 audio coding technology and pat-
ents licensed from Fraunhofer IIS and Thomson.
 
“x.v.Color (x.v.Colour)” and “x.v.Color 
(x.v.Colour)” logo are trademarks of Sony Cor-
poration.
“BRAVIA” is a trademark of Sony Corporation.
“PlayStation” is a registered trademark of Sony 
Computer Entertainment Inc.
STR-DN840
MULTI CHANNEL AV RECEIVER
9-890-617-04
2014D80-1
© 
2014.04
Ver. 1.3  2014.04
US Model
Canadian Model
AEP Model
UK Model
Australian Model
Mexican Model
Taiwan Model
SPECIFICATIONS
“WALKMAN” is a registered trademark of Sony 
Corporation.
MICROVAULT is a trademark of Sony Corpora-
tion.
VAIO and VAIO Media are registered trademarks 
of Sony Corporation.
PARTY STREAMING and PARTY STREAM-
ING logo are trademarks of Sony Corporation.
The Wi-Fi CERTIFIED Logo is a certifi cation 
mark of the Wi-Fi Alliance.
The  Bluetooth
®
 word mark and logos are regis-
tered trademarks owned by Bluetooth SIG, Inc. 
and any use of such marks by Sony Corporation 
is under license.
Other trademarks and trade names are those of 
their respective owners.
InstaPrevue™ is a trademark or registered trade-
mark of Silicon Image, Inc. in the United States 
and other countries.
FLAC Decoder
Copyright (C)
2000,2001,2002,2003,2004,2005,2006,2007 
Josh Coalson
Redistribution and use in source and binary 
forms, with or without modifi cation, are permit-
ted provided that the following conditions are 
met:
–  Redistributions of source code must retain the 
above copyright notice, this list of conditions 
and the following disclaimer.
–  Redistributions in binary form must reproduce 
the above copyright notice, this list of condi-
tions and the following disclaimer in the docu-
mentation and/or other materials provided with 
the distribution.
–  Neither the name of the Xiph.org Foundation 
nor the names of its contributors may be used 
to endorse or promote products derived from 
this software without specifi c prior written per-
mission.
THIS SOFTWARE IS PROVIDED BY THE 
COPYRIGHT HOLDERS AND CONTRIBU-
TORS “AS IS” AND ANY EXPRESS OR IM-
PLIED WARRANTIES, INCLUDING, BUT 
NOT LIMITED TO, THE IMPLIED WARRAN-
TIES OF MERCHANTABILITY AND FIT-
NESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE 
FOUNDATION OR CONTRIBUTORS BE LI-
ABLE FOR ANY DIRECT, INDIRECT, INCI-
DENTAL, SPECIAL, EXEMPLARY, OR CON-
SEQUENTIAL DAMAGES (INCLUDING, 
BUT NOT LIMITED TO, PROCUREMENT OF 
SUBSTITUTE GOODS OR SERVICES; LOSS 
OF USE, DATA, OR PROFITS; OR BUSINESS 
INTERRUPTION) HOWEVER CAUSED AND 
ON ANY THEORY OF LIABILITY, WHETH-
ER IN CONTRACT, STRICT LIABILITY, 
OR TORT (INCLUDING NEGLIGENCE OR 
OTHERWISE) ARISING IN ANY WAY OUT 
OF THE USE OF THIS SOFTWARE, EVEN IF 
ADVISED OF THE POSSIBILITY OF SUCH 
DAMAGE.
AUDIO POWER
SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
(US model only)
With 6 ohm loads, both channels driven, from 
20 – 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.
Amplifi er section
Mexican model
1)
Minimum RMS Output Power
(6 ohms, 20 Hz – 20 kHz, THD 0.09%)
 
90 W + 90 W
Stereo Mode Output Power
1)
(6 ohms, 1 kHz, THD 1%)
 
100 W + 100 W
Surround Mode Output Power
1) 2)
(6 ohms, 1 kHz, THD 0.9%)
 
 
140 W per channel
Other models
1)
Minimum RMS Output Power
1)
(6 ohms, 20 Hz – 20 kHz, THD 0.09%)
 
95 W + 95 W
Stereo Mode Output Power
1)
(6 ohms, 1 kHz, THD 1%)
 
110 W + 110 W
Surround Mode Output Power
1) 2)
(6 ohms, 1 kHz, THD 0.9%)
 
 
150 W per channel
1)
 Measured under the following conditions:
Area
Power requirements
US, Canadian, 
Taiwan
120 V AC, 60 Hz
Mexican
127 V AC, 60 Hz
AEP, UK, 
Australian
230 V AC, 50 Hz
2)
 Reference power output for front, center, sur-
round, 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 – 100 kHz, 
+0.5/–2 dB (with sound 
fi eld and equalizer 
bypassed)
Input
  Analog 
Sensitivity: 500 mV/
50 kilohms
  
S/N
3)
: 105 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)
  SUBWOOFER 
Voltage: 2 V/1 kilohm
Equalizer
  Gain levels 
±10 dB, 1 dB step
3) 
INPUT SHORT (with sound fi eld and equalizer 
bypassed).
4) 
Weighted network, input level.
FM tuner section
Tuning range 
87.5 MHz – 108.0 MHz
(50 kHz step) 
(AEP, UK, Australian,
Taiwan, Mexican)
87.5 MHz – 108.0 MHz
(100 kHz step) 
(US, Canadian)
Antenna (aerial) 
FM wire antenna (aerial)
Antenna (aerial) terminals
   
75 ohms, unbalanced
AM tuner section
Tuning range
Area
Tuning scale
10 kHz step 
9 kHz step
US, Canadian,
Mexican
530 kHz – 
531 kHz –
1,710 kHz 
1,710 kHz
AEP, UK, 
Australian, 
Taiwan
        – 
531 kHz –
 1,602 
kHz
Antenna (aerial) 
Loop antenna (aerial)
Video section
Inputs/Outputs
  Video: 
1 Vp-p, 75 ohms
– Continued on next page –
STR-DN840
2
iPod/iPhone section
DC 5V 1.0 A MAX
USB section
Supported format* 
MP3 (MPEG 1 Audio Layer-3):
32 kbps – 320 kbps, VBR
   
AAC: 16 kbps – 320 kbps, CBR, VBR
  
WMA9 
Standard:
40 kbps – 320 kbps, CBR, VBR
   
WAV: 8 kHz – 192 kHz, 16 bit PCM
8 kHz – 192 kHz, 24 bit PCM
   
FLAC: 8 kHz – 192 kHz, 16 bit FLAC
   
44.1 kHz – 192 kHz, 24 bit FLAC
* Compatibility with all encoding/
writing software, recording devices and 
recording media cannot be guaranteed.
Transfer speed 
High-speed
Supported USB device
   
Mass Storage Class
Maximum current 
500 mA
NETWORK section
Ethernet LAN 
10BASE-T/100BASE-TX
Wireless LAN
 Compatible 
standards:
   
IEEE 802.11 b/g
  Security: 
WEP 64 bit, WEP 128 bit,
  
WPA/WPA2-PSK 
(AES),
  
WPA/WPA2-PSK 
(TKIP)
  Radio frequency:  2.4 GHz
Bluetooth section (US, Canadian)
Communication system
   
Bluetooth Specifi cation
  
version 
3.0
Output 
Bluetooth Specifi cation
   
Power Class 2
Maximum communication range
   
Line of sight approx.
  
10 
m
1)
Frequency band 
2.4 GHz band
   
(2.4000 GHz – 2.4835 GHz)
Modulation method  FHSS (Freq Hopping
  
Spread 
Spectrum)
Compatible Bluetooth profi les
2)
  
A2DP 
(Advanced 
Audio
  
Distribution 
Profi le)
   
AVRCP 1.3 (Audio Video
   
Remote Control Profi le)
Supported Codecs
3)
 SBC
4)
, AAC
Transmission range (A2DP)
   
20 Hz – 20,000 Hz
  
(Sampling 
frequency
  
44.1 
kHz)
1) 
The actual range will vary depending on factors such as 
obstacles between devices, magnetic fi elds around a microwave 
oven, static electricity, cordless phone, reception sensitivity, 
antenna’s performance, operating system, software application, 
etc.
2) 
Bluetooth standard profi les indicate the purpose of Bluetooth 
communication between devices.
3) 
Codec: Audio signal compression and conversion format
4) 
Subband Codec
General
Power requirements
Area
Power requirements
US, Canadian, 
Taiwan
120 V AC, 60 Hz
Mexican
127 V AC, 60 Hz
AEP, UK
230 V AC, 50/60 Hz
Australian
230 V AC, 50 Hz
Power consumption  240 W
Power consumption (during standby mode)
   
0.3 W (When “Control for HDMI”, 
“Pass Through”, and “Network Standby” 
are set to “Off”.)
Dimensions (width/height/depth) (Approx.)
   
430 mm × 156 mm × 329.4 mm
   
(17 in × 6 1/4 in × 13 in) including 
projecting parts and controls
Mass (Approx.) 
8.5 kg
Design and specifi cations are subject to change without notice.
HDMI Video
Input/Output (HDMI Repeater block)
Format
2D
3D
Frame packing
Side-by-Side 
(Half)
Over-Under 
(Top-and-Bottom)
4096 × 2160p @ 23.98/24 Hz
a
3840 × 2160p @ 29.97/30 Hz
a
3840 × 2160p @ 25 Hz
a
3840 × 2160p @ 23.98/24 Hz
a
1920 × 1080p @ 59.94/60 Hz
a
a
a
1920 × 1080p @ 50 Hz
a
a
a
1920 × 1080p @ 29.97/30 Hz
a
a
a
a
1920 × 1080p @ 25 Hz
a
a
a
a
1920 × 1080p @ 23.98/24 Hz
a
a
a
a
1920 × 1080i @ 59.94/60 Hz
a
a
a
a
1920 × 1080i @ 50 Hz
a
a
a
a
1280 × 720p @ 59.94/60 Hz
a
a
a
a
1280 × 720p @ 50 Hz
a
a
a
a
1280 × 720p @ 29.97/30 Hz
a
a
a
a
1280 × 720p @ 23.98/24 Hz
a
a
a
a
720 × 480p @ 59.94/60 Hz
a
720 × 576p @ 50 Hz
a
640 × 480p @ 59.94/60 Hz
a
Supplied accessories
• 
Operating Instructions (except AEP)
• 
Quick Setup Guide (1)
• Remote 
control 
–  (RM-AAU170) (1) (US, Canadian, Taiwan)
–  (RM-AAU169) (1) (except US, Canadian, Taiwan)
• 
R6 (size AA) batteries (2)
• 
Reference Guide (1) (AEP)
• 
FM wire antenna (aerial) (1)
• 
AM loop antenna (aerial) (1)
• 
Optimizer microphone (ECM-AC2) (1)
Ver. 1.1
STR-DN840
3
NOTES  ON  CHIP  COMPONENT  REPLACEMENT
• 
Never reuse a disconnected chip component.
• 
Notice that the minus side of a tantalum capacitor may be damaged
by heat.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, 
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and 
from all exposed metal parts to any exposed metal part having a 
return to chassis, must not exceed 0.5 mA (500 microamperes.). 
Leakage current can be measured by any one of three methods.
1.  A commercial leakage tester, such as the Simpson 229 or RCA 
WT-540A. Follow the manufacturers’ instructions to use these 
instruments.
2.  A battery-operated AC milliammeter. The Data Precision 245 
digital multimeter is suitable for this job.
3.  Measuring the voltage drop across a resistor by means of a 
VOM or battery-operated AC voltmeter. The “limit” indication 
is 0.75 V, so analog meters must have an accurate low-voltage 
scale. The Simpson 250 and Sanwa SH-63Trd are examples 
of a passive VOM that is suitable. Nearly all battery operated 
digital multimeters that have a 2 V AC range are suitable. (See 
Fig. A)
1.5 k
Ω
0.15 
μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
SAFETY-RELATED  COMPONENT  WARNING!
COMPONENTS  IDENTIFIED  BY  MARK  
0  OR  DOTTED  LINE  
WITH  MARK  
0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS 
 
WHOSE  PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  
MANUAL  OR  IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
ATTENTION  AU  COMPOSANT  AYANT  RAPPORT  
À  LA  SÉCURITÉ!
LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  
0  SUR  
LES  DIAGRAMMES  SCHÉMATIQUES  ET  LA  LISTE  DES  
PIÈCES  SONT  CRITIQUES  POUR  LA  SÉCURITÉ  DE  FONC-
TIONNEMENT.  NE  REMPLACER  CES  COMPOSANTS  QUE  
PAR  DES  PIÈCES  SONY  DONT  LES  NUMÉROS  SONT  DON-
NÉS  DANS  CE  MANUEL  OU  DANS  LES  SUPPLÉMENTS  
PUBLIÉS  PAR  SONY.
STR-DN840
4
1. 
SERVICING  NOTES
  .............................................   5
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   7
2-2.   Case (Entry) ....................................................................   8
2-3. TUNER1 
ASSY 
..............................................................   8
2-4.  Front Panel Section .........................................................   9
2-5.  DIGITAL Board, NETWORK Module...........................   10
2-6.  DCDC Board, STANDBY Board,
GND BRACKET Board .................................................   11
2-7.  Back Panel Section, MAIN Board Section .....................   12
2-8. MAIN 
Board 
...................................................................  13
3. 
TEST  MODE 
 ............................................................   14
4. 
FM  TUNER  CHECK 
 .............................................   17
5. DIAGRAMS
5-1.  Block Diagram - ANALOG AUDIO Section - ...............   19
5-2.  Block Diagram - DIGITAL Section -..............................   20
5-3.  Block Diagram - AMP Section - .....................................   21
5-4.  Block Diagram - ANALOG VIDEO/USB Section - ......   22
5-5.  Block Diagram - DIGITAL VIDEO Section - ................   23
5-6.  Block Diagram - DISPLAY/POWER Section - ..............   24
5-7. Printed 
Wiring 
Board 
- DIGITAL Board (Component side) -............................   26
5-8. Printed 
Wiring 
Board 
- DIGITAL Board (Conductor side) - .............................   27
5-9.  Schematic Diagram - DIGITAL Board (1/8) - ................   28
5-10.  Schematic Diagram - DIGITAL Board (2/8) - ................   29
5-11.  Schematic Diagram - DIGITAL Board (3/8) - ................   30
5-12.  Schematic Diagram - DIGITAL Board (4/8) - ................   31
5-13.  Schematic Diagram - DIGITAL Board (5/8) - ................   32
5-14.  Schematic Diagram - DIGITAL Board (6/8) - ................   33
5-15.  Schematic Diagram - DIGITAL Board (7/8) - ................   34
5-16.  Schematic Diagram - DIGITAL Board (8/8) - ................   35
5-17. Printed Wiring Board 
- MAIN Board (Component side) - .................................   36
5-18. Printed Wiring Board 
- MAIN Board (Conductor side) - ..................................   37
5-19.  Schematic Diagram - MAIN Board (1/4) - .....................   38
5-20.  Schematic Diagram - MAIN Board (2/4) - .....................   39
5-21.  Schematic Diagram - MAIN Board (3/4) - .....................   40
5-22.  Schematic Diagram - MAIN Board (4/4) - .....................   41
5-23.  Printed Wiring Board -DISPLAY Board - ......................   42
5-24.  Schematic Diagram - DISPLAY Board- .........................   43
TABLE  OF  CONTENTS
5-25.  Printed Wiring Board - DCDC Board - ..........................   44
5-26.  Schematic Diagram - DCDC Board - .............................   45
5-27.  Printed Wiring Board - STANDBY Board - ...................   46
5-28.  Schematic Diagram - STANDBY Board - ......................   47
5-29. Printed Wiring Board 
- FRONT JACK PWB Board - .......................................   48
5-30. Schematic Diagram 
- FRONT JACK PWB Board - .......................................   48
5-31.  Printed Wiring Board - TUNER1 Board - ......................   48
5-32.  Schematic Diagram - TUNER1 Board - .........................   49
5-33.  Printed Wiring Board - POWER KEY Board -...............   50
5-34.  Schematic Diagram - POWER KEY Board - .................   50
5-35.  Printed Wiring Board - HEADPHONE Board - .............   50
5-36.  Schematic Diagram - HEADPHONE Board - ................   50
6. 
EXPLODED  VIEWS
6-1.  Case (Entry) Section .......................................................   73
6-2. DIGITAL 
Board 
..............................................................  74
6-3.  Front Panel Section .........................................................   75
6-4.  Back Panel Section .........................................................   76
6-5. Chassis 
Section 
...............................................................  77
7. 
ELECTRICAL  PARTS  LIST
  ..............................   78
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Sony STR-DN840 Service Manual ▷ Download

  • DOWNLOAD Sony STR-DN840 Service Manual ↓ Size: 6.81 MB | Pages: 100 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony STR-DN840 in PDF for free, which will help you to disassemble, recover, fix and repair Sony STR-DN840 Audio. Information contained in Sony STR-DN840 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.