NWZ-S774BT - Sony Audio Service Manual (repair manual). Page 2

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NWZ-S773BT/S774BT/S775BT
2
Charging time
USB-based charging
Approx. 3 hours (full charge), Approx. 1.5 hours (approx. 80 %)
Battery life (continuous playback)
Actual battery life may vary depending on settings. The estimated battery usage hours shown below 
are based on typical usage conditions with “Basic setting of battery life measurement” as shown in the 
table below.
Note
Even if your Walkman is turned off for an extended period, a small amount of battery power is 
still consumed.
Battery life may vary depending on volume setting, conditions of use, and ambient temperature.
n
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Playback at MP3 128 kbps
Approx. 36 hours
Approx. 8 hours
Playback at Linear PCM 1,411 kbps Approx. 36 hours
Approx. 8 hours
n
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s
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V
Playback at MPEG-4 384 kbps
Approx. 6 hours
Approx. 4 hours
n
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B
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M
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Receiving FM broadcasting
Approx. 12 hours
-
Voice recording
Bluetooth function is off Bluetooth function is on
s
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3
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Your Walkman settings which affect battery life
 Setting
Basic setting of battery life 
measurement
[Common
Settings]
[Screen Off Timer] (*1) (*2) 
 
[30 Sec]
[Brightness] (*3) 
 
[3]
[Battery Care] (*4) 
 
[Off]
[Music Settings]
[Equalizer] (*5) 
 
[None] (*6)
[VPT (Surround)] (*5) 
 
[None]
[DSEE (Sound Enhance)] (*5) 
[Off]
[Clear Stereo] (*5) 
 
[Off]
[Dynamic Normalizer] (*5) 
 
[Off]
[DPC (Speed Control)] (*7) 
 
[Off]
[Display Lyrics] (*8) 
 
[On]
[Karaoke/Language Study] (*9) 
[Off]
[Bluetooth 
Settings]
[Wireless Playback Quality] 
  [Prioritize Connection]
(*1) The [Off] setting shortens the battery life by about 80% compared with the [30 Sec] setting.
(*2) The longer the waiting time, the shorter the battery life for continuous music playback.
(*3) The [5] setting shortens the battery life for continuous video playback by about 45% compared with the 
[3] setting.
(*4) The [On] setting shortens the battery life by about 10% compared with the [Off] setting.
(*5) Setting [Equalizer] to other than [None], [VPT (Surround)] to other than [None], [DSEE (Sound 
Enhance)] to [On], [Clear Stereo] to [On] and [Dynamic Normalizer] to [On] shortens the battery life for 
continuous music playback by about 50% compared with setting them to [None] or [Off].
(*6) The default setting of your Walkman sold in the Latin America region is [Custom 1]. The [Custom 1] 
setting shortens the battery life for continuous music playback by about 20% compared with the [None] 
setting.
(*7) The [x2.0] setting shortens the battery life for continuous music playback by about 70% compared with 
the [Off] setting.
(*8) The [On (Screen Always On)] setting shortens the battery life for continuous music playback by about 
85% compared with the [On] setting.
(*9) The [Maximum Karaoke Mode] setting shortens the battery life for continuous music playback by about 
85% compared with the [Off] setting.
Dimensions (w/h/d, projecting parts not included)
Approx. 42.7 mm × 97.2 mm × 7.0 mm (1 11/16 inches × 3 7/8 inches × 9/32 inches)
Dimensions (w/h/d)
Approx. 43.3 mm × 97.2 mm × 7.4 mm (1 3/4 inches × 3 7/8 inches × 5/16 inches)
Mass
Approx. 51 g (1.8 oz)
Specifications for Bluetooth headphones
Communication system
Bluetooth specification version 2.1+EDR (*1)
Output
Bluetooth specification Power Class 2
Maximum communication range
Line of sight approx. 10 meters (30 feet) (*2)
Frequency band
2.4000 GHz - 2.4835 GHz
Modulation method
FHSS
Compatible Bluetooth profiles (*3)
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio Video Remote Control Profile)
Supported Codec (*4)
SBC (*5)
Power source
Built-in Rechargeable lithium-ion battery
USB power (from a computer via a USB connector of the Bluetooth headphones)
Dimensions (w/h/d)
Approx. 50.5 mm × 24.5 mm × 11.3 mm (2 inches × 31/32 inches × 15/32 inches)
Dimensions (w/h/d, upright position)
Approx. 50.5 mm × 25.5 mm × 19.0 mm (2 inches × 1 1/16 inches × 3/4 inches)
Mass
Approx. 27 g (1.0 oz)
Battery life (continuous playback)
Approx. 4 hours
Charging time
USB-based charging
Approx. 2.5 hours
(*1) EDR stands for Enhanced Data Rate.
(*2) The range may vary depending on the communication environment.
(*3) Bluetooth profiles are standardized according to the purpose of the Bluetooth device.
(*4) Codec indicates the audio signal compression and conversion format.
(*5) SBC stands for Subband Codec.
Design and specifications are subject to change without notice.
Display
2-inch (5.1 cm), TFT color display with white LED-backlight, QVGA (320 × 240 pixels), 262,144 colors
Power source
Built-in rechargeable lithium-ion battery
USB power (from a computer via a USB connector of your Walkman)
License and trademark notice
“WALKMAN” and “WALKMAN” logo are registered trademarks of Sony Corporation.
12 TONE ANALYSIS and its logo are trademarks of Sony Corporation.
SensMe and the SensMe logo are trademarks or registered trademarks of Sony Mobile 
Communications AB.
“PlayStation” and “PSP” are registered trademarks of Sony Computer Entertainment Inc.
MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson.
Microsoft, Windows, Windows Vista and Windows Media are either trademarks or registered 
trademarks of Microsoft Corporation in the United States and/or other countries.
IBM and PC/AT are registered trademarks of International Business Machines Corporation.
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.
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.
THIS PRODUCT IS LICENSED UNDER THE MPEG-4 VISUAL PATENT PORTFOLIO LICENSE 
FOR THE PERSONAL AND NON-COMMERCIAL USE OF A CONSUMER FOR 
(i) ENCODING VIDEO IN COMPLIANCE WITH THE MPEG-4 VISUAL STANDARD (“MPEG-4 
VIDEO”) AND/OR 
(ii) DECODING MPEG-4 VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED IN A 
PERSONAL AND NON-COMMERCIAL ACTIVITY AND/OR WAS OBTAINED FROM A VIDEO 
PROVIDER LICENSED BY MPEG LA TO PROVIDE MPEG-4 VIDEO. 
NO LICENSE IS GRANTED OR SHALL BE IMPLIED FOR ANY OTHER USE. ADDITIONAL 
INFORMATION INCLUDING THAT RELATING TO PROMOTIONAL, INTERNAL AND 
COMMERCIAL USES AND LICENSING MAY BE OBTAINED FROM MPEG LA, LLC. SEE 
HTTP://WWW.MPEGLA.COM
THIS PRODUCT IS LICENSED UNDER THE AVC PATENT PORTFOLIO LICENSE FOR THE 
PERSONAL AND NON-COMMERCIAL USE OF A CONSUMER TO 
(i) ENCODE VIDEO IN COMPLIANCE WITH THE AVC STANDARD (“AVC VIDEO”) AND/OR 
(ii) DECODE AVC VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED IN A 
PERSONAL AND 
NON-COMMERCIAL ACTIVITY AND/OR WAS OBTAINED FROM A VIDEO PROVIDER 
LICENSED TO PROVIDE AVC 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
THIS PRODUCT IS LICENSED UNDER THE VC-1 PATENT PORTFOLIO LICENSE FOR THE 
PERSONAL AND NON-COMMERCIAL USE OF A CONSUMER 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 ENGAGED 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 trademarks of their 
respective holders. In this manual, TM and ® marks are not specified.
This product is manufactured in compliance with “Embedded Memory with Playback and Recording 
Function System” (hereafter referred to as EMPR (*1)) standard. “MagicGate Type-R for Secure 
Video Recording for EMPR” is applied to this product as a content protection method.
(*1) “EMPR” is a name of a standard for systems that support copyright protection system developed by 
Sony Corporation. “MagicGate Type-R for Secure Video Recording for EMPR” has received approval 
from Dpa (The Association for Promotion of Digital Broadcasting) as a content protection method for 
making a recording of digital broadcasting.
This product contains technology subject to certain intellectual property rights of Microsoft. Use or 
distribution of this technology outside of this product is prohibited without the appropriate license(s) 
from Microsoft.
Program ©2012 Sony Corporation
Documentation ©2012 Sony Corporation
Information on Expat
Copyright ©1998, 1999, 2000 Thai Open Source Software Center Ltd and Clark Cooper.
Copyright ©2001, 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 files (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 persons to whom the Software is furnished to do so, subject to 
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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 WARRANTIES 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 ACTION OF CONTRACT, TORT OR 
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
USE OR OTHER DEALINGS IN THE SOFTWARE.
Information on ncurses
Copyright (c) 1998-2004,2006 Free Software Foundation, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
associated documentation files (the “Software”), to deal in the Software without restriction, including 
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modifications, sublicense, and/or sell copies of the Software, and to permit persons 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 WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR 
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
SOFTWARE.
Except as contained in this notice, the name(s) of the above copyright holders shall not be used in 
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written authorization.
Information on netkit-ftp
Copyright (c) 1985, 1989 Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted 
provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the 
following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following 
acknowledgement:
This product includes software developed by the University of California, Berkeley and its 
contributors.
4. Neither the name of the University nor the names of its contributors may be used to endorse or 
promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS “AS IS” AND ANY 
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY 
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 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, WHETHER 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.
Information on strace
Copyright (c) 1991, 1992 Paul Kranenburg <[email protected]>
Copyright (c) 1993 Branko Lankester <[email protected]>
Copyright (c) 1993 Ulrich Pegelow <[email protected]>
Copyright (c) 1995, 1996 Michael Elizabeth Chastain <[email protected]>
Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <[email protected]>
Copyright (c) 1998-2001 Wichert Akkerman <[email protected]>
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted 
provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the 
following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
the following disclaimer in the documentation and/or other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products derived from this 
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR “AS IS” AND ANY EXPRESS OR IMPLIED 
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 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, 
WHETHER 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.
Information on OpenSSL
LICENSE ISSUES
The OpenSSL toolkit stays under a dual license, i.e. both the conditions of the OpenSSL License and 
the original SSLeay license apply to the toolkit.
See below for the actual license texts. Actually both licenses are BSD-style Open Source licenses. In 
case of any license issues related to OpenSSL please contact [email protected].
OpenSSL License
Copyright ©1998-2011 The OpenSSL Project.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted 
provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the 
following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following 
acknowledgment:
“This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. 
(
http://www.openssl.org/
)”
4. The names “OpenSSL Toolkit” and “OpenSSL Project” must not be used to endorse or promote 
products derived from this software without prior written permission. For written permission, please 
5. Products derived from this software may not be called “OpenSSL” nor may “OpenSSL” appear in 
their names without prior written permission of the OpenSSL Project.
6. Redistributions of any form whatsoever must retain the following acknowledgment:
“This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit 
(
http://www.openssl.org/
)”
THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT “AS IS” AND ANY EXPRESSED OR 
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
EVENT SHALL THE OpenSSL PROJECT OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 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, WHETHER 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.
This product includes cryptographic software written by Eric Young ([email protected]). 
This product includes software written by Tim Hudson ([email protected]).
Original SSLeay License
Copyright ©1995-1998 Eric Young ([email protected])
All rights reserved.
This package is an SSL implementation written by Eric Young ([email protected]).
The implementation was written so as to conform with Netscapes SSL.
This library is free for commercial and non-commercial use as long as the following conditions are 
aheared to. The following conditions apply to all code found in this distribution, be it the RC4, RSA, 
lhash, DES, etc., code; not just the SSL code. The SSL documentation included with this distribution 
is covered by the same copyright terms except that the holder is Tim Hudson ([email protected]).
Copyright remains Eric Young’s, and as such any Copyright notices in the code are not to be 
removed.
If this package is used in a product, Eric Young should be given attribution as the author of the parts 
of the library used.
This can be in the form of a textual message at program startup or in documentation (online or 
textual) provided with the package.
Redistribution and use in source and binary forms, with or without modification, are permitted 
provided that the following conditions are met:
1. Redistributions of source code must retain the copyright notice, this list of conditions and the 
following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
the following disclaimer in the documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software must display the following 
acknowledgement:
“This product includes cryptographic software written by Eric Young ([email protected])”
The word ‘cryptographic’ can be left out if the rouines from the library being used are not 
cryptographic related :-).
4. If you include any Windows specific code (or a derivative thereof) from the apps directory 
(application code) you must include an acknowledgement:
“This product includes software written by Tim Hudson ([email protected])”
THIS SOFTWARE IS PROVIDED BY ERIC YOUNG “AS IS” AND ANY EXPRESS OR IMPLIED 
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 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, WHETHER 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.
The licence and distribution terms for any publically available version or derivative of this code cannot 
be changed. i.e. this code cannot simply be copied and put under another distribution licence 
[including the GNU Public Licence.]
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