SRS-X9 - Sony Audio Service Manual (repair manual)

2014G33-1

© 

2014.07

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. 

Super tweeter (Top): Approx. 19 mm (3/4 inches) diameter × 2 / 
Super tweeter (Front): Approx. 19 mm (3/4 inches) diameter × 2 / 
Midrange: Approx. 50 mm (2 inches) diameter × 2 / 
Subwoofer: Approx. 94 mm (3 3/4 inches) diameter × 1

Super tweeter (Top): 2 W × 2 (at less than 10 % harmonic distortion,

 

20 kHz) / Super tweeter (Front): 25 W × 2 (at less than 10 % harmonic 
distortion, 10 kHz) / Midrange: 25 W × 2 (at less than 10 % harmonic 
distortion, 1 kHz) / Subwoofer: 25 W × 2 (at less than 10 % harmonic 
distortion, 100 kHz)

IEEE 802.11 b/g (WEP 64 bit, WEP 128 bit, WPA/WPA2-PSK (AES), WPA/
WPA2-PSK (TKIP))

2.412 GHz – 2.462 GHz (2.4 GHz ISM Band, 11 Channels) /  
Channel 1 – Channel 11

2.412 GHz – 2.472 GHz (2.4 GHz ISM Band, 13 Channels) /  
Channel 1 – Channel 13

BLUETOOTH Specification Power Class 2

Line of sight Approx. 10 m (about 30 ft)*

1

2.4 GHz band (2.4000 GHz – 2.4835 GHz)

BLUETOOTH Specification Version 3.0

A2DP (Advanced Audio Distribution Profile) / AVRCP (Audio Video 
Remote Control Profile)

SBC (Subband Codec)*

4

 / AAC*

5

 / aptX

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

You can connect a compatible device such as an Android 
smartphone, iPhone, etc., to this system, using a USB cable (not 
supplied).
Supported format*

MP3 (MPEG 1 Audio Layer-3): 16 kbps – 320 kbps, CBR/VBR
AAC: 16 kbps – 320 kbps, CBR/VBR
WMA9 Standard: 16 kbps – 320 kbps, CBR/VBR
WAV: 32 kHz – 192 kHz, 16 bit PCM 

32 kHz – 192 kHz, 24 bit PCM

FLAC: 8 kHz – 192 kHz, 16 bit FLAC 

44.1 kHz – 192 kHz, 24 bit FLAC

Transfer speed
High-speed
Supported USB device
Mass Storage Class (MSC)
Maximum output current
2.1 A MAX

You can connect a compatible device such as a computer, etc., to this 
system, using a USB cable (not supplied).
Supported format*

PCM (44.1 k/48 k/88.2 k/96 k/176.4 k/192 kHz, 16/24/32 bit)

*

1

Compatibility with all encoding/writing software, recording 
devices and recording media cannot be guaranteed.

ANALOG Φ 3.5 mm stereo mini jack

10BASE-T/100BASE-TX (Auto Polarity)

US, Canadian

120 V AC, 60Hz

Taiwan

110 V AC, 50Hz/60Hz

Except US, Canadian, Taiwan

220 V – 240 V AC, 50Hz/60Hz

50 W

Less than 0.5 W

Less than 3 W

Approx. 430 mm × 133 mm × 125 mm (169.3 inches × 52.4 inches × 
49.2 inches)

Approx. 4.6 kg (162.3 oz)

Remote control (RMT-CX9) (1) / AC power cord (1) (Except AEP and UK models) / 
AC power cord (2) (AEP and UK models) / AAA size batteries for the remote 
control (2) (for trial use) / Cleaning cloth (1) / Speaker grille detach tool (2) / 
Start Guide “Enjoy Music over Your Wi-Fi Network” / Reference Guide / 
Warranty card (US, Canadian, AEP, UK, Chinese and Korean models)

Design and specifications are subject to change without notice.

0  OR  DOTTED  LINE  

0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  

NOTES  ON  CHIP  COMPONENT  REPLACEMENT
• 

Never reuse a disconnected chip component.

• 

Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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)

0  SUR  

SONY, Sony Entertainment Network and the logos are trademarks 
of Sony Corporation.
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.
Pandora, the Pandora logo, and the Pandora trade dress are 
trademarks or registered trademarks of Pandora Media, Inc., used 
with permission.
Spotify and Spotify logos are trademarks of the Spotify Group.

Apple, the Apple logo, AirPlay, iPad, iPhone, iPod, iPod classic, iPod 
nano, iPod touch, iTunes, Mac and OS X are trademarks of Apple 
Inc., registered in the U.S. and other countries. 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.
Macintosh and Mac OS are trademarks of Apple Inc., registered in 
the U.S. and other countries.

“

”  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.
DLNA™, the DLNA Logo and DLNA CERTIFIED™ are trademarks, 
service marks, or certification marks of the Digital Living Network 
Alliance.
© 2013 CSR plc and its group companies. 
The aptX® mark and the aptX logo are trade marks of CSR plc or 
one of its group companies and may be registered in one or more 
jurisdictions.
“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.
“Xperia” and “Xperia Tablet” are trademarks of Sony Mobile 
Communications AB.
WALKMAN® and WALKMAN® logo are registered trademarks of 
Sony Corporation.
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.

 .............................................  

4

2-1. Disassembly 

Flow 

...........................................................  11

2-2. Grille 

Assy 

......................................................................  12

2-3. Bottom 

Panel 

Assy 

..........................................................  12

2-4. Baffl e Block ....................................................................   13
2-5.  Speaker Wire (L-ch, R-ch) ..............................................   14
2-6.  LED Board, Light Guide (C) ..........................................   15
2-7.  Satellite Cabinet (L, R) Block .........................................   16
2-8.  Loudspeaker 2.2 cm (L-ch, R-ch) (SP2, SP4) ................   17
2-9.  Loudspeaker 5.4 cm (L-ch, R-ch) (SP5, SP6) ................   18
2-10.  Plate (U) (US, Canadian models) ...................................   19
2-11.  Loudspeaker (9.4 cm) (SP7) ...........................................   19
2-12.  Loudspeaker (6.8 × 9.5 cm) Passive (L-ch, R-ch) 

(SP8, SP9) .......................................................................   20

2-13.  Bluetooth Module (BT1) ................................................   20
2-14.  Flexible Flat Cable (14 Core) (FFC2) .............................   21
2-15.  Shield Plate Block ...........................................................   21
2-16.  MAIN Board Block ........................................................   22
2-17.  WiFi Module (WIFI1), MAIN Board .............................   22
2-18.  Power Unit (PU1) ...........................................................   23
2-19. JACK Board ....................................................................   24
2-20.  Ferrite Core (FC1) ..........................................................   24
2-21.  AC Inlet (2P) (AC1) .......................................................   25

 ............................................................   26

4-1.  Block Diagram - MAIN Section - ...................................   28
4-2.  Block Diagram - AMP Section - .....................................   29
4-3. Block 

Diagram 

- PANEL, POWER SUPPLY Section - ...........................   30

4-4.  Printed Wiring Boards - MAIN Section (1/2) - ..............   32
4-5.  Printed Wiring Boards - MAIN Section (2/2) - ..............   33
4-6.  Schematic Diagram - MAIN Section (1/6) - ...................   34
4-7.  Schematic Diagram - MAIN Section (2/6) - ...................   35
4-8.  Schematic Diagram - MAIN Section (3/6) - ...................   36
4-9.  Schematic Diagram - MAIN Section (4/6) - ...................   37
4-10.  Schematic Diagram - MAIN Section (5/6) - ...................   38
4-11.  Schematic Diagram - MAIN Section (6/6) - ...................   39

5-1. Overall 

Section 

...............................................................  47

5-2.  Super Tweeter (Front) Section ........................................   48
5-3. Baffl e Section ..................................................................   49
5-4.  MAIN Board Section ......................................................   50
5-5.  Rear Cabinet Section ......................................................   51

 ..............................   52

Accessories are given in the last of the electrical parts list.

UNLEADED  SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution:  Some printed circuit boards may not come printed with 

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.
•  Unleaded solder melts at a temperature about 40 °C higher 

than ordinary solder.

 

Ordinary soldering irons can be used but the iron tip has to be 
applied to the solder joint for a slightly longer time.

 

Soldering irons using a temperature regulator should be set to 
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if 

the heated tip is applied for too long, so be careful!

• Strong 

viscosity

 

Unleaded solder is more viscous (sticky, less prone to fl ow) 
than ordinary solder so use caution not to let solder bridges 
occur such as on IC pins, etc.

• 

Usable with ordinary solder

 

It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.

NOTE  OF  REPAIRING  THE  BOARDS
When boards other than the MAIN board installed by this unit are 
defective, individual electrical parts that the mount is done cannot 
be replaced.
Replace the mounted board, or replace the whole parts including 
an applicable board.

NOTE  THE  CN401,  IC001,  IC012,  IC905  AND  IC906  
ON  THE  MAIN  BOARD  REPLACING
CN401, IC001, IC012, IC905 and IC906 on the MAIN board can-
not replace with single. When these parts are damaged, replace the 
complete mounted board.

NOTE  OF  BAFFLE  REPLACING
The washers (twelve places) may be attached to the baffl e of this 
unit. 
When replacing baffl e, it is not necessary to newly attach the wash-
ers. 
Please attach a new baffl e in the state where there are no washers.

NOTE  OF  WiFi  MODULE  REPLACING
When the WiFi module is replaced, the MAC address and DTCP-
IP ID have been changed.
Print the page 7 and 9, and pass it to the customer with the repaired 
unit when you return the customer the repaired unit.

PROCESSING  OF  REPLACING  THE  WiFi  MODULE
When replacing the WiFi module (Ref. No. WIFI1), peel the de-
vice ID label stuck on the bottom side of the unit, and stick on the 
new device ID label enclosed with the new WiFi module (Ref. No. 
WIFI1).

1 Peel the device
 ID 

2 Stick on the new 
 

Device ID:       XXXXXXXXXXXX

MAC Address: XX-XX-XX-XX-XX-XX