SRS-X77 - Sony Audio Service Manual (repair manual)

srs-x77 service manual
Model
SRS-X77
Pages
40
Size
4.2 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
srs-x77.pdf
Date

Read Sony SRS-X77 Service Manual online

SERVICE MANUAL
Sony Video & Sound Products Inc.
Published by Sony Techno Create Corporation
SRS-X77
SPECIFICATIONS
PERSONAL AUDIO SYSTEM
9-896-159-03
2015K33-1
© 
2015.11
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Chinese Model
Ver. 1.2  2015.11
Note:
Be sure to keep your PC used for service and 
checking of this unit always updated with the 
latest version of your anti-virus software.
In case a virus affected unit was found during 
service, contact your Service Headquarters. 
Section for Speaker
Speakers
Full range speaker: Approx. 46 mm (1 
7
/
8
inches) diameter × 2 /
Subwoofer: Approx. 62 mm (2 
3
/
8
 inches) 
diameter × 1
Section for Amplifier
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
Power Output (reference)
Using AC adaptor
Full range speaker: 10W+10W (at 1% 
harmonic distortion, 1 kHz, 8 
:)
Subwoofer: 20W (at 1% harmonic distortion, 
100 Hz, 4 
:)
Using battery
Full range speaker: 6W+6W (at 1% harmonic 
distortion, 1 kHz, 8 
:)
Subwoofer: 12W (at 1% harmonic distortion, 
100 Hz, 4 
:)
Section for Network
Compatible standards
IEEE 802.11 a/b/g/n (WEP 64 bit, 
WEP 128 bit, WPA/WPA2-PSK (AES), WPA/ 
WPA2-PSK (TKIP))
Radio frequency
2.4/5 GHz band
Section for BLUETOOTH
Output
BLUETOOTH Specification Power Class 2
Maximum communication range
Line of sight Approx. 10 m (about 30 ft)*
1
Radio frequency
2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Communication System
7
3
/
8
BLUETOOTH Specification Version 3.0
Compatible BLUETOOTH Profiles*
2
A2DP (Advanced Audio Distribution 
Profile) /AVRCP (Audio Video Remote
Control Profile)
Supported codec*
3
SBC*
4
/ AAC*
5
/ LDAC*
6
Transmission bandwidth (A2DP)
20 Hz – 20,000 Hz (with 44.1 kHz sampling)
*
1
The actual range will vary depending on factors 
such as obstacles between devices, magnetic 
fields around a microwave oven, static 
electricity, reception sensitivity, aerial’s 
performance, operating system, software 
application, etc.
*
2
BLUETOOTH standard profiles indicate the 
purpose of BLUETOOTH communication 
between devices.
*
3
Codec: Audio signal compression and 
conversion format
*
4
Subband Codec
*
5
Advanced Audio Coding
General
AUDIO IN
ANALOG      3.5 mm stereo mini jack
Network port
10BASE-T/100BASE-TX (Auto Polarity)
DC OUT
USB jack Type A (for charging the battery of 
a connected device) (5 V, Max. 1.5 A: labeled 
on bottom of system)
Power
DC 18V (using the supplied AC adaptor 
connected to AC 120V-240V, 50Hz/60Hz 
(RU, AUS, CH, KR), AC100V-240V, 50Hz/
60Hz (Other models) power supply) or,    
using built in lithium-ion battery 
Usage life of lithium-ion battery (when the 
NETWORK OFF/ON switch is OFF)
Usage life of lithium-ion battery (when the 
NETWORK OFF/ON switch is ON)
Operating temperature
5 °C to 35 °C (41 °F to 95 °F)
Dimensions (w/h/d) (including projecting parts 
and controls)
Approx. 300 mm × 132 mm × 60 mm (11 
7
/
8
 
inches × 5 
2
/
8
 inches × 2 
3
/
8
 inches)
Mass
Approx. 1.9kg (4 lb 3 oz)
Supplied accessories:
AC power cord (1) (Other models)
AC adaptor (AC-E1826) (1)
Wi-Fi Startup Guide
Plug Adaptor (1) (SP6)
*
6
LDAC is an audio coding technology developed 
by Sony that enables the transmission of High-
Resolution (Hi-Res) Audio content, even over a 
BLUETOOTH connection. Unlike other 
BLUETOOTH compatible coding technologies 
such as SBC, it operates without any down-
conversion of the Hi-Res Audio content*
7
, and 
allows approximately three times more data*
8
than those other technologies to be transmitted 
over a BLUETOOTH wireless network with 
unprecedented sound quality, by means of 
efficient coding and optimized packetization.
*
7
Excluding DSD format contents
*
8
In comparison with SBC (Subband Coding) when 
the bitrate of 990kbps (96/48kHz) or 909kbps 
(88.2/44.1kHz) is selected
Power consumption
30 W
Power consumption (during standby mode)
0.3 W
Power consumption (during BLUETOOTH/
network standby mode)
5 W
AC power cord (mains lead) (2)
(AEP, UK, SP6)
(RU, AUS, CH, KR)
AC adaptor (AC-E1826L) (1)
(Other models)
For customers in the UK, Ireland, Malta, and 
Cyprus:
Use the AC power cord (mains lead) (A).
For safety reasons, the AC power cord 
(mains lead) (B) is not intended for the 
above countries/regions and shall therefore 
not be used there.
For customers in other countries/regions:
Use the AC power cord (mains lead) (B).
Design and specifications are subject to 
change without notice.
(A)
(B)
Operating Instructions, Warranty card
Warranty card (for customers in Canada) (1)
(US, CND)
Operating Instructions 
(Other models)
 
(US, CND)
Warranty card (AEP, UK,  AUS, CH, KR)
Approx. 10 hours*
1
Approx. 3 hours*
1
*
1
When the specified music source is used, the 
BLUETOOTH device is set to the maximum 
volume, and the volume level of this unit is set 
to 7.
When the NETWORK OFF/ON switch is OFF: If 
the volume level of the unit is set to maximum, 
the usage life will be shortened by 80%.
When the NETWORK OFF/ON switch is ON If the 
volume level of the unit is set to maximum, the 
usage life will be shortened by 50%.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
SRS-X77
2
1. 
SERVICING  NOTES 
 .............................................  
3
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   9
2-2.  Panel (Bottom) Block .....................................................   10
2-3.  Lithium Battery (BAT1) ..................................................   11
2-4.  Net Grill Sub Assy ..........................................................   12
2-5. Panel 
(Top) 
Assy 
.............................................................  13
2-6.  Cabinet (Front) Block .....................................................   14
2-7. Clamp 
(L35) 
....................................................................  15
2-8.  Box (Lch, Rch) Block .....................................................   16
2-9.  Radiator Passive (SP4, SP5) ...........................................   16
2-10.  Subwoofer (6.2 cm) (SP3) ..............................................   17
2-11.  Full Range Speaker (4.6 cm) Block ................................   17
2-12.  Full Range Speaker (4.6 cm) (SP1, SP2) ........................   18
2-13. Antenna Assy (ANT1) ....................................................   19
2-14. TOUCH Board ................................................................   20
2-15. KEY Board ......................................................................   21
2-16.  NFC Module (NFC1) ......................................................   22
2-17.  Cover (Jack) Block .........................................................   23
2-18. CHARGE Board .............................................................   24
2-19. JACK Board ....................................................................   25
2-20.  MAIN Board Block ........................................................   26
2-21. NETWORK Board ..........................................................   27
2-22.  MAIN Board, Card WLAN/BT Combo .........................   28
2-23.  Bluetooth Module (BT1) ................................................   29
3. 
TEST  MODE 
 ............................................................   30
4. 
EXPLODED  VIEWS
4-1. Overall 
Section 
...............................................................  33
4-2.  Full Range Speaker Section ............................................   34
4-3.  Cabinet (Front) Section ...................................................   35
4-4.  TOUCH Board, JACK Board Section ............................   36
4-5.  Cabinet Rear Section ......................................................   37
5. ACCESSORIES 
 .......................................................   38
TABLE  OF  CONTENTS
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.
Notes on the AC adaptor
When connecting or disconnecting the AC 
adaptor, turn off the unit beforehand. 
Otherwise, it may cause malfunction.
Use only the supplied AC adaptor. To 
avoid damaging the unit, do not use any 
other AC adaptor.
Plug the AC adaptor into a nearby wall 
outlet (mains). In the case of a problem, 
unplug it from the wall outlet (mains) 
immediately.
Do not install the AC adaptor in a confined 
space, such as a bookcase or built-in 
cabinet.
To reduce the risk of fire or electric shock, 
do not expose the AC adaptor to dripping 
or splashing, and do not place objects 
filled with liquids, such as vases, on the 
AC adaptor.
The validity of the CE marking is restricted 
to only those countries where it is legally 
enforced, mainly in the countries EEA 
(European Economic Area).
Polarity of the plug
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.
On copyrights
Windows, the Windows logo, and 
Windows Media are either registered 
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 
Microsoft or an authorized Microsoft 
subsidiary.
Apple, the Apple logo, AirPlay, iPad, 
iPhone, iPod, iPod nano, iPod touch, 
iTunes, Mac and OS X are trademarks of 
Apple Inc., registered in the U.S. and other 
countries. iPad Air and iPad mini are 
trademarks of Apple Inc.
App Store is a service mark of Apple Inc.
“Made for iPod,” “Made for iPhone,” and 
“Made for iPad” mean that an electronic 
accessory has been designed to connect 
specifically to iPod, iPhone, or iPad, 
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, iPhone, or iPad may 
affect wireless performance.
” is a mark of the Wi-Fi Alliance.
Wi-Fi®, Wi-Fi Protected Access® and Wi-Fi 
Alliance® are registered marks of the Wi-Fi 
Alliance.
Wi-Fi CERTIFIED™, WPA™, WPA2™ and 
Wi-Fi Protected Setup™ are marks of the 
Wi-Fi Alliance.
“S-Master” is a trademark of Sony 
Corporation.
ClearAudio+ and 
 are 
trademarks of Sony Corporation.
“DSEE” and 
 are trademarks of 
Sony Corporation.
MPEG Layer-3 audio coding technology 
and patents licensed from Fraunhofer IIS 
and Thomson.
The BLUETOOTH® word mark and logos 
are owned by the 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.
The N-Mark is a trademark or registered 
trademark of NFC Forum, Inc. in the 
United States and in other countries.
Google Play and Android are trademarks 
of Google Inc.
Google Cast™ and the Google Cast Badge 
are trademarks of Google Inc.
“Xperia” and “Xperia Tablet” are 
trademarks of Sony Mobile 
Communications AB.
WALKMAN® and WALKMAN® logo are 
registered trademarks of Sony 
Corporation.
LDAC™ and LDAC logo are trademarks of 
Sony Corporation.
DLNA™, the DLNA Logo and DLNA 
CERTIFIED™ are trademarks, service 
marks, or certification marks of the Digital 
Living Network Alliance.
AOSS is a trademark of BUFFALO INC.
This product incorporates Spotify 
software which is subject to 3rd party 
licenses found here:
https://developer.spotify.com/esdk-
third-party-licenses/
Spotify and Spotify logos are trademarks 
of the Spotify Group.
The system names and product names 
indicated in this manual are generally the 
trademarks or registered trademarks of 
the manufacturer.
™ and ® marks are omitted in this manual.
Ver. 1.1
SRS-X77
3
SECTION  1
SERVICING  NOTES
DESTINATION  ABBREVIATIONS
The following abbreviations for model destinations are used in this 
service manual.
• Abbreviations
 AUS : 
Australian 
model
 CH  : 
Chinese 
model
 CND : 
Canadian 
model
 KR  : 
Korean 
model
 RU  : 
Russian 
model
  SP6  : Middle East, African, Singapore, Malaysia and Philippines 
models
 TH  : 
Thai 
model
NOTE  OF  REPAIRING  THE  BOARDS
When boards installed in this unit are defective, it is replaced by 
the board. Replace the complete mounted board or the whole parts 
including the complete mounted board.
NOTE  OF  REPLACING  THE  COMPLETE  NETWORK  
BOARD  AND  CARD  WLAN/BT  COMBO
When needing to replace the complete NETWORK board or card 
WLAN/BT combo, be sure to carry out the following contents.
1.  Be sure to replace the complete NETWORK board and card 
WLAN/BT combo simultaneously.
2.  When replacing the complete NETWORK board and card 
WLAN/BT combo, peel the device ID label stuck on the bot-
tom side of the unit, and stick on the device ID label enclosed 
with the new part (Refer to the fi gure below).
– Bottom view –
Model number label
indication
1 Peel the device
 ID 
label.
2 Stick on the new 
 
device ID label.
Device ID:  XXXXXXXXXXXX
MAC1 :XX-XX-XX-XX-XX-XX
MAC2 :XX-XX-XX-XX-XX-XX
3.  When replacing the complete NETWORK board and card 
WLAN/BT combo, refer to “CHECKING OF NETWORK 
CONNECTION”.
4.  When replacing the complete NETWORK board and card 
WLAN/BT combo, the MAC address and DTCP-IP ID have 
been changed.
 
Print the page 5 and page 7, cut it, and hand over it to the cus-
tomer with the unit, when returning the unit that the repair is 
completed to the customer.
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.
CHECKING  OF  NETWORK  CONNECTION
When replacing the following parts, be sure to carry out the net-
work connection check (wired/wireless).
Target parts:
• 
Complete NETWORK board and Card WLAN/BT combo 
 
Note: Be sure to replace the two parts simultaneously.
• 
Complete MAIN board
•  Antenna assy (Ref. No. ANT1) (wireless LAN connection 
check only)
1. Checking the wireless LAN connection
Necessary Equipment:
• 
Access point supporting WPS
Procedure:
1.  Check that network LAN cable is not connected to the unit.
2.  Slide the [NETWORK OFF/ON] switch in the direction of 
“ON”.
3. Press 
the 
[?/1] button to turn the power on, and the [LINK] 
indicator blinks in orange.
4.  Check that the [LINK] indicator lights off.
5.  Press and hold the [WPS] button for about 2 seconds until beep 
sound occurs, and the [LINK] indicator blinks in orange.
6.  Press the [WPS] button on the access point.
7.  Wireless LAN connection is completed, and the [LINK] indi-
cator lights up in orange.
Note: Refer to “Operating Instructions” or “Wi-Fi Startup Guide” of this 
unit’s accessories for details.
2. Checking the wired LAN connection
Necessary Equipment:
• Router
• 
Network LAN cable
Procedure:
1.  Connect the unit to the router with the network LAN cable.
2.  Slide the [NETWORK OFF/ON] switch in the direction of 
“ON”.
3. Press 
the 
[?/1] button to turn the power on, and the [LINK] 
indicator blinks in pink.
4.  Wired LAN connection is completed, and the [LINK] indicator 
lights up in pink.
Note: Refer to “Help Guide” of this unit for details.
Ver. 1.1
SRS-X77
4
THE  USER  REGISTRATION  DELETION  METHOD  OF  
SEN  SERVICE
By checking device ID, user registration of the SEN service of this 
unit can be force reset.
(Device ID is “the hexadecimal numbers of 12 digits”)
When this unit needs force reset, check device ID and consult with 
the service headquarters.
Procedure:
1.  Check the device ID label stuck on the bottom side of the unit.
2.  Record the device ID indicated on the device ID label by the 
memorandum etc.
 
(Device ID is “the hexadecimal numbers of 12 digits”)
– Bottom view –
Device ID:  XXXXXXXXXXXX
MAC1 :XX-XX-XX-XX-XX-XX
MAC2 :XX-XX-XX-XX-XX-XX
Device ID
.
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