NWZ-E343, NWZ-E344, NWZ-E345 - Sony Audio Service Manual (repair manual). Page 2

FLEXIBLE  CIRCUIT  BOARD  REPAIRING
• 

Keep the temperature of soldering iron around 270 °C during 
repairing.

• 

Do not touch the soldering iron on the same conductor of the 
circuit board (within 3 times).

• 

Be careful not to apply force on the conductor when soldering 
or unsoldering.

0  OR  DOTTED  LINE  

0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  

0  SUR  

  .............................................   3

2-1. Disassembly 

Flow 

...........................................................  10

2-2.  Button Sheet, Ring Ornament .........................................   11
2-3.  Key Cover, Cover Reset SW ...........................................   11
2-4.  Back Cover, Knob VOL, Knob Hold ..............................   12
2-5.  HP Jack Assy (HPJ1) ......................................................   12
2-6. KEY 

Board 

......................................................................  13

2-7. Battery 

Assy 

(BAT1) 

.......................................................  13

2-8. Top 

Cover........................................................................  14

2-9.  VOL SW Assy (VSW1) ..................................................   14
2-10.  MAIN Board, LCD Assy (LCD1) ...................................   15

TEST  MODE 

 ............................................................   16

4-1.  Key Cover Section ..........................................................   23
4-2.  Top Cover, KEY Board Section ......................................   24
4-3.  MAIN Board, LCD Assy Section ...................................   25

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

CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.

•  ATRAC is trademark of Sony Corporation.
•  “WALKMAN” and “WALKMAN” logo are registered trademarks of Sony Corpora-

tion.

• 

 is trademark of Sony Corporation.

•  Microsoft, Windows, Windows Vista and Windows Media are trademarks or registered 

trademarks of Microsoft Corporation in the United States and/or other countries.

•  Adobe, Adobe Reader and Adobe Flash Player are trademarks or registered trademarks 

of Adobe Systems Incorporated in the United States and/or other countries.

•  MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and 

Thomson.

•  IBM and PC/AT are registered trademarks of International Business Machines Corpo-

ration.

•  Apple, Macintosh and iTunes are trademarks of Apple Inc., registered in the U.S. and 

other countries.

•  Pentium is a trademark or a registered trademark of Intel Corporation.
•  This software is based in part on the work of the Independent JPEG Group.
• THIS PRODUCT IS LICENSED UNDER THE VC-1 PATENT PORTFOLIO LI-

CENSE FOR THE PERSONAL AND NON-COMMERCIAL USE OF A CONSUM-
ER TO

  (i)  ENCODE VIDEO IN COMPLIANCE WITH THE VC-1 STANDARD (“VC-1 

VIDEO”) AND/OR

  (ii) DECODE VC-1 VIDEO THAT WAS ENCODED BY A CONSUMER EN-

GAGED IN A PERSONAL AND NON-COMMERCIAL ACTIVITY AND/OR 
WAS OBTAINED FROM A VIDEO PROVIDER LICENSED TO PROVIDE 
VC-1 VIDEO. NO LICENSE IS GRANTED OR SHALL BE IMPLIED FOR 
ANY OTHER USE. ADDITIONAL INFORMATION MAY BE OBTAINED 
FROM MPEG LA, L.L.C. SEE HTTP://WWW.MPEGLA.COM

• All other trademarks and registered trademarks are trademarks or registered trade-

marks of their respective holders. In this manual, TM and R marks are not specifi ed.

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.
Content providers are using the digital rights management technology for Windows 
Media contained in this device (“WM-DRM”) to protect the integrity of their content 
(“Secure Content”) so that their intellectual property, including copyright, in such con-
tent is not misappropriated.
This device uses WM-DRM software to play Secure Content (“WM-DRM Software”). 
If the security of the WM-DRM Software in this device has been compromised, owners 
of Secure Content (“Secure Content Owners”) may request that Microsoft revoke the 
WMDRM Software’s right to acquire new licenses to copy, display and/or play Secure 
Content.
Revocation does not alter the WM-DRM Software’s ability to play unprotected content. 
A list of revoked WM-DRM Software is sent to your device whenever you download a 
license for Secure Content from the Internet or from a PC. Microsoft may, in conjunction 
with such license, also download revocation lists onto your device on behalf of Secure 
Content Owners.

•  Information on Expat
  Copyright c1998, 1999, 2000 Thai Open Source Software Center Ltd and Clark Coo-

per.

  Copyright c2001, 2002, 2003, 2004, 2005, 2006 Expat maintainers
  Permission is hereby granted, free of charge, to any person obtaining a copy of this 

software and associated documentation fi les (the “Software”), to deal in the Software 
without restriction, including without limitation the rights to use, copy, modify, merge, 
publish, distribute, sublicense, and/or sell copies of the Software, and to permit per-
sons to whom the Software is furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all copies 

or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED “AS IS,” WITHOUT WARRANTY OF ANY 

KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WAR-
RANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE 
AND NONINFRINGEMENT.

  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 

FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN AC-
TION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
THE SOFTWARE.

Program ©2009 Sony Corporation
Documentation ©2009 Sony Corporation