NWZ-S754, NWZ-S755 — Sony Audio Service Manual (repair manual)

Model
NWZ-S754 NWZ-S755
Pages
34
Size
1.15 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
nwz-s754-nwz-s755.pdf
Date

View Sony NWZ-S754 / NWZ-S755 Service Manual online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
NWZ-S754/S755
SPECIFICATIONS
DIGITAL MEDIA PLAYER
9-889-987-01
2010I05-1
© 
2010.09
Canadian Mode
Chinese Model
Mexican Model
NWZ-S754
AEP Model
UK Model
E Model
Australian Model
NWZ-S754/S755
Ver. 1.0  2010.09
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. 
– Continued on next page –
Supported file format
Music (including podcasts (*1))
Audio Formats
(Codec)
MP3
Media File format: MP3 (MPEG-1 Layer3) file format
File extension: .mp3
Bit rate: 32 to 320 kbps (Supports variable bit rate (VBR))
Sampling frequency (*2): 32, 44.1, 48 kHz
WMA
Media File format: ASF file format
File extension: .wma
Bit rate: 32 to 192 kbps (Supports variable bit rate (VBR))
Sampling frequency (*2): 44.1 kHz
* Compatible with WM-DRM 10
AAC-LC (*3)
Media File format: MP4 file format
File extension: .mp4, .m4a, .3gp
Bit rate: 16 to 320 kbps (Supports variable bit rate (VBR))
(*4)
Sampling frequency (*2): 8, 11.025, 12, 16, 22.05, 24, 32,
44.1, 48 kHz
Linear PCM
Media File format: Wave-Riff file format
File extension: .wav
Bit rate: 1,411 kbps
Sampling frequency (*2): 44.1 kHz
Video (including podcasts (*1))
Video Formats
(Codec)
Frame rate: Max. 30 fps
Resolution: Max. 720 × 480 (*5)
AVC
(H.264/AVC)
Media File format: MP4 file format, “Memory Stick” video
format
File extension: .mp4, .m4v
Profile: Baseline Profile
Level: 1.2, 1.3, 2, 2.1, 2.2, 3
Bit rate: Max. 10 Mbps
MPEG-4
Media File format: MP4 file format, “Memory Stick” video
format
File extension: .mp4, .m4v
Profile: Simple Profile
Bit rate: Max. 6 Mbps
Windows Media Video 9
(*6)
Media File format: ASF file format
File extension: .wmv
Profile: VC1 simple profile, main profile
Bit rate: Max. 6 Mbps
Audio Formats
(Codec)
AAC-LC
(for AVC, MPEG-4)
Channel number: Max. 2 channels
Sampling frequency (*2): 24, 32, 44.1, 48 kHz
Bit rate: Max. 288 kbps / channel
WMA
(for Windows Media
Video 9)
Bit rate: 32 to 192 kbps (Supports variable bit rate (VBR))
Sampling frequency (*2): 44.1 kHz
* Compatible with WM-DRM 10
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Photo (*7)
Photo Format
(Codec)
JPEG
Media File format: Compatible with DCF 2.0/Exif 2.21 file
format
File extension: .jpg
Profile: Baseline Profile
Number of pixels: Max. 4,096 × 4,096 pixels (16,000,000
pixels)
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(*1) The maximum recordable number of podcasts is 20,000.
(*2) Sampling frequency may not correspond to all encoders.
(*3) Copyright protected AAC-LC files cannot be played back.
(*4) Non-standard bit rates or non-guaranteed bit rates are included depending on the sampling frequency.
(*5) These numbers indicate the maximum resolution of playable video, and do not indicate the player’s display
resolution. The display resolution is 320 × 240.
(*6) Some WMV files can be played back only by transferring using Windows Media Player.
(*7) Some photo files cannot be played back, depending on their file formats.
Maximum recordable number of songs and time (Approx.)
The approximate times are based on the case in which you transfer only 4 minute songs (not including videos and
photos) in the MP3 format. Other playable audio file format song numbers and times may differ from MP3 format.
NWZ-S754
NWZ-S755
Bit rate
Number Time
Number Time
48 kbps
4,950
330 hr. 00 min. 10,000
666 hr. 40 min.
64 kbps
3,650
243 hr. 20 min. 7,450
496 hr. 40 min.
128 kbps 1,800
120 hr. 00 min. 3,700
246 hr. 40 min.
256 kbps 925
61 hr. 40 min.
1,850
123 hr. 20 min.
320 kbps 740
49 hr. 20 min.
1,500
100 hr. 00 min.
Maximum recordable time of videos (Approx.)
The approximate recordable times are estimated in the case where only videos are transferred. The time may
differ, depending on the conditions under which the player is used.
NWZ-S754
NWZ-S755
Bit rate
Time
Time
Video Format: 384 kbps
Audio Format: 128 kbps
29 hr. 20 min. 59 hr. 40 min.
Video Format: 768 kbps
Audio Format: 128 kbps
16 hr. 40 min. 34 hr. 00 min.
Maximum recordable number of photos that can be transferred (Approx.)
Max. 20,000
Maximum containable number of songs in each folder: 1,000
Recordable number of photos may be less depending on file sizes.
Maximum recordable number of playlists
Maximum transferrable number of playlists: 8,192
Maximum containable number of songs in each playlist: 999
NWZ-S754/S755
2
20 to 20,000 Hz (when playing data file, single signal measurement)
Noise Canceling function
Digital Noise Canceling function
Environment setting: Bus/Train / Airplane / Office
Noise Canceling Modes: Normal Mode / Quiet Mode / External Input Mode
Total Noise Suppression Ratio (*1)
Approx. 17 dB (*2)
(*1) Under Sony measurement standard.
(*2) Equivalent to approx. 98.0% reduction of energy of sound compared with not wearing headphones. ([Select NC
Environment]: [Airplane])
FM radio
FM Frequency range
87.5 to 108.0 MHz
(You cannot use the FM radio function while the player is installed into the speaker system.)
IF (FM)
128 kHz
Antenna
Headphone cord antenna
Interface
Headphone: Stereo mini-jack
WM-PORT (multiple connecting terminal): 22 pins
Hi-Speed USB (USB 2.0 compliant)
Operating temperature
5 °C to 35 °C (41 ºF to 95 ºF)
Power source
  Built-in rechargeable lithium-ion battery
  USB power (from a computer via a USB connector of the player)
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 the player 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.
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Playback at MP3 128 kbps
Approx. 40 hours
Approx. 50 hours
Playback at WMA 128 kbps
Approx. 40 hours
Approx. 50 hours
Playback at AAC-LC 128 kbps
Approx. 39 hours
Approx. 48 hours
Playback at Linear PCM 1,411 kbps Approx. 45 hours
Approx. 56 hours
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Playback at MPEG-4 384 kbps
Approx. 9 hours
Approx. 10 hours
Playback at AVC Baseline 384 kbps Approx. 9 hours
Approx. 10 hours
Playback at WMV 384 kbps
Approx. 9 hours
Approx. 10 hours
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Receiving FM broadcasting
Approx. 18 hours
Approx. 20 hours
Player settings which affect battery life
Setting
Basic setting of battery life measurement (Default
setting)
[Common
Settings]
[Screensaver]:[On/Off] (*1) 
[On]
[Screensaver]:[Type] (*1) 
[Blank]
[Screensaver]:[Delay] (*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]
[TV Output(Music)] (*10) 
[Off]
[Video Settings]
[TV Output(Video)] (*11) 
[Off]
(*1) The [Off] setting shortens the battery life by about 80% compared with the [On] - [Blank] 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 players 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 (No Screen Off)] 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.
(*10) The [On] setting while displaying the player’s screen on a television shortens the battery life about 90% compared
with the [Off] setting.
(*11) The [On] setting while displaying the player’s screen on a television shortens the battery life about 55% compared
with the [Off] setting.
Display
2-inch, TFT color display with white LED-backlight, QVGA (240 × 320 pixels), 262,144 colors
Dimensions (w/h/d, projecting parts not included)
42.5 × 94.0 × 7.2 mm (1 11/16 × 3 3/4 × 5/16 inches)
Dimensions (w/h/d)
42.7 × 94.2 × 7.5 mm (1 11/16 × 3 3/4 × 5/16 inches)
Mass
Approx. 55 g (2 oz)
Design and specifications are subject to change without notice.
Supplied items
  Headphones (1)
  Earbuds (Size S, L) (1)
  USB cable (1)
  Attachment (1)
Use when connecting the player to the cradle (not supplied), etc.
  Audio input cable (1)
  Plug adaptor for in-flight use (single/dual) (1)
  Quick Start Guide
  Software
The software is stored in the built-in flash memory of the player, and includes the following items. For details
on how to install, refer to “Quick Start Guide.”
  Content Transfer
  WALKMAN Guide
  User Guide, etc.
Capacity (User available capacity) (*1)
NWZ-S754: 8 GB (Approx. 6.99 GB = 7,513,210,880 bytes)
NWZ-S755: 16 GB (Approx. 14.1 GB = 15,224,635,392 bytes)
(*1) Available storage capacity of the player may vary.
A portion of the memory is used for data management functions.
Output (headphones)
Frequency response
NWZ-S754/S755
3
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.
1. 
SERVICING  NOTES
  .............................................   4
2. DISASSEMBLY
2-1.  Disassembly  Flow ...........................................................  
9
2-2.  Panel (Rear) Assy Block .................................................   10
2-3.  Main Block .....................................................................   11
2-4.  Mechanical Front Assy ...................................................   11
2-5.  Open  The  Short-land .......................................................   12
2-6.  EMMC Board .................................................................   12
2-7. 
Support  (M) .....................................................................   13
2-8.  5Pin HP Assy (HPJ1) ......................................................   13
2-9.  LCD Assy  (LCD1) ..........................................................   14
2-10.  MOTHER  Board .............................................................   15
2-11.  VOL  Key  Assy ................................................................   16
2-12.  Battery  Assy  (BAT1) .......................................................   16
3. 
TEST  MODE 
 ............................................................   17
4. 
EXPLODED  VIEWS
4-1.  Rear Panel Section ..........................................................   28
4-2.  Front Panel Section .........................................................   29
4-3.  LCD, Battery Section ......................................................   30
4-4.  Chassis Section ...............................................................   31
5. ACCESSORIES
   .......................................................   32
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.
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.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
NWZ-S754/S755
4
ABOUT  THE  REPAIRING  OF  BOARD
When electric parts installed by this machine are defective, replace 
the entire board.
Individual electrical parts that the mount is done cannot be ex-
changed.
Moreover, the EMMC board cannot exchange with single. When 
exchanging the EMMC board, exchange it at the same time as the 
MOTHER board. The MOTHER board can be exchanged alone.
ABOUT  THE  HANDLING  OF  THE  BATTERY  ASSY 
(BAT1)
When the battery assy (BAT1) is removed, insulate the end of wire 
by a tape etc. to prevent short-circuited of the wire part of battery 
assy (BAT1).
battery assy (BAT1)
wire
wire
Wrap by the tape etc. and 
insulate the end of wire.
SECTION  1
SERVICING  NOTES
System requirements
• Computer
 
IBM PC/AT compatible computer preinstalled with the follow-
ing Windows operating systems (*1):
 
- Windows XP Home Edition (*2) (Service Pack 3 or later)
 
- Windows XP Professional (*2) (Service Pack 3 or later)
 
- Windows Vista Home Basic (Service Pack 1 or later)
 
- Windows Vista Home Premium (Service Pack 1 or later)
 
- Windows Vista Business (Service Pack 1 or later)
 
- Windows Vista Ultimate (Service Pack 1 or later)
 
- Windows 7 Home Basic
 
- Windows 7 Home Premium
 
- Windows 7 Professional
 
- Windows 7 Ultimate
Not supported by OSs other than above.
[Compatibility mode] for Windows XP (included with Windows 
Vista and Windows 7) is not supported.
(*1) Excluding OS Versions not supported by Microsoft.
(*2) Excluding 64-bit OS versions.
•  CPU: Pentium III 450 MHz or higher for Windows XP, Pen-
tium III 800 MHz or higher for Windows Vista, Pentium III 1 
GHz or higher for Windows 7
•  RAM: 256 MB or more for Windows XP, 512 MB or more for 
Windows Vista, 1 GB or more for Windows 7 32-bit versions, 
2 GB or more for Windows 7 64-bit versions
•  Hard Disk Drive: 600 MB or more of available space
• Display:
•  Screen Resolution: 800 × 600 pixels (or higher) (recommend-
ed 1,024 × 768 or higher)
•  Colors: 8 bit or higher (16 bit recommended)
•  CD-ROM drive (supporting Digital Music CD playback capa-
bilities using WDM)
•  Sound card
•  USB connector (Hi-Speed USB is recommended)
•  Windows Media Player 11 for Windows XP and Windows 
Vista, Windows Media Player 12 for Windows 7
•  Internet Explorer 7 or later
•  Broadband Internet connection is required to use Electronic 
Music Distribution (EMD) or to visit the web site.
We do not guarantee operation for all computers even if they meet 
the above System Requirements.
Not supported by the following environments:
 
- Personally constructed computers or operating systems
 
- An environment that is an upgrade of the original manufac-
turer-installed operating system
 
- Multi-boot environment
 
- Multi-monitor environment
 
- Macintosh
Design and specifi cations are subject to change without notice.
Page of 34
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  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).