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Sony NWZ-S754 Service Manual
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Sony NWZ-S754 Service Manual

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SERVICE MANUAL
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.
Supported file format
Music (including podcasts (*1))
MP3
WMA
Audio Formats
(Codec)
AAC-LC (*3)
Linear PCM
Video (including podcasts (*1))
AVC
(H.264/AVC)
Video Formats
(Codec)
MPEG-4
Windows Media Video 9
(*6)
AAC-LC
(for AVC, MPEG-4)
Audio Formats
(Codec)
WMA
(for Windows Media
Video 9)
F
e l i
i s
e z
T
h
e
n
u
m
b
r e
f o
l i f
s e
Photo (*7)
Photo Format
JPEG
(Codec)
T
h
e
n
u
m
b
r e
f o
l i f
s e
9-889-987-01
Sony Corporation
2010I05-1
©
2010.09
Published by Sony Techno Create Corporation
NWZ-S754/S755
SPECIFICATIONS
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
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
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
Media File format: Wave-Riff file format
File extension: .wav
Bit rate: 1,411 kbps
Sampling frequency (*2): 44.1 kHz
Frame rate: Max. 30 fps
Resolution: Max. 720 × 480 (*5)
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
Media File format: MP4 file format, "Memory Stick" video
format
File extension: .mp4, .m4v
Profile: Simple Profile
Bit rate: Max. 6 Mbps
Media File format: ASF file format
File extension: .wmv
Profile: VC1 simple profile, main profile
Bit rate: Max. 6 Mbps
Channel number: Max. 2 channels
Sampling frequency (*2): 24, 32, 44.1, 48 kHz
Bit rate: Max. 288 kbps / channel
Bit rate: 32 to 192 kbps (Supports variable bit rate (VBR))
Sampling frequency (*2): 44.1 kHz
* Compatible with WM-DRM 10
M
a
. x
4
G
B
M
a
. x
2
0 ,
0
0
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)
M
a
. x
2
0
0 ,
0
0
Australian Model
(*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
29 hr. 20 min. 59 hr. 40 min.
Audio Format: 128 kbps
Video Format: 768 kbps
16 hr. 40 min. 34 hr. 00 min.
Audio Format: 128 kbps
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
DIGITAL MEDIA PLAYER
Canadian Mode
Chinese Model
Mexican Model
NWZ-S754
AEP Model
UK Model
E Model
NWZ-S754/S755
– Continued on next page –

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  • Page 1 Media File format: Compatible with DCF 2.0/Exif 2.21 file format Photo Format File extension: .jpg JPEG (Codec) Profile: Baseline Profile Number of pixels: Max. 4,096 × 4,096 pixels (16,000,000 pixels) DIGITAL MEDIA PLAYER l i f 9-889-987-01 Sony Corporation 2010I05-1 © 2010.09 Published by Sony Techno Create Corporation...
  • Page 2 NWZ-S754/S755 Player settings which affect battery life 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) Basic setting of battery life measurement (Default Setting (*1) Available storage capacity of the player may vary.

  • Page 3: Table Of Contents

    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.

  • Page 4: Servicing Notes

    NWZ-S754/S755 SECTION 1 SERVICING NOTES System requirements ABOUT THE REPAIRING OF BOARD • Computer When electric parts installed by this machine are defective, replace IBM PC/AT compatible computer preinstalled with the follow- the entire board. ing Windows operating systems (*1):...
  • Page 5 NWZ-S754/S755 NOTE THE BOARD REPLACING One point: The destination setting tool for each series is stored as below. When the EMMC board or MOTHER board are replaced, process it according to the following order. Folder name Folder name Updater fi les Note 1: The EMMC board cannot exchange with single.
  • Page 6 NWZ-S754/S755 6. The WALKMAN reboots automatically after the destination 2. Format data is updated. After rebooting, check that connecting USB Formatting memory [Format] (MTP) is displayed on the liquid crystal display of the WALK- You can format the built-in fl ash memory of the player.
  • Page 7 NWZ-S754/S755 • When MOTHER board is replaced alone 1-3. How to use the NC parameter setting tool 1. NC parameter setting Note 1: Please use this tool after closing other application software. 1-1. Outline Procedure: The unit has Digital Noise Cancelling function. Therefore, NC pa- 1.
  • Page 8 NWZ-S754/S755 10. Enter the test mode referring to “1. SETTING THE TEST MODE” (page 17). Then, execute “4-10-1. Microphone gain (L-ch) adjustment” and “4-10-2. Microphone gain (R-ch) ad- justment” (page 27), and check if the data is updated properly. MATAPP (X.XX.XX)

  • Page 9: Disassembly

    NWZ-S754/S755 SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. PANEL (REAR) ASSY BLOCK (Page 10) 2-3. MAIN BLOCK (Page 11) 2-5. OPEN THE SHORT-LAND 2-4. MECHANICAL FRONT ASSY (Page 12) (Page 11) 2-11.

  • Page 10: Panel (Rear) Assy Block

    NWZ-S754/S755 Note: Follow the disassembly procedure in the numerical order given. 2-2. PANEL (REAR) ASSY BLOCK 1 two screws (M1.4 5.5) – Rear side view (bottom side) – 3 six claws Left side: front panel block panel (rear) assy block...

  • Page 11: Main Block

    NWZ-S754/S755 2-3. MAIN BLOCK – Rear side view (bottom side) – mechanical front assy block cover (LCD) 1 two spacers (chassis-B) 2 claw 6 main block Note: When the main block is installed in the mechanical front assy block, it is necessary to install the cover (LCD) to main block first.

  • Page 12: Open The Short-Land

    NWZ-S754/S755 2-5. OPEN THE SHORT-LAND Note 1: This illustration sees the mechanical commonness block from LCD assy side (lower half). Note 2: Make sure to remove one solder to become an open state before disassembling the mechanical commonness block. Note 3: Solder the short-land after all wirings are connected when you exchanged some mounted board.

  • Page 13: Support (M)

    NWZ-S754/S755 2-7. SUPPORT (M) 1 sheet (PWB) 3 boss 5 support (M) 3 boss 2 Lift wires of battery assy (BAT1). support (M) wire of battery assy (BAT1) – – 2-8. 5PIN HP ASSY (HPJ1) 3 support (L) 1 two claws 6 three claws 5 screw (M1.4)

  • Page 14: Lcd Assy (Lcd1)

    NWZ-S754/S755 2-9. LCD ASSY (LCD1) 1 cover light 4 LCD assy (LCD1) 3 Pull out the LCD assy flexible board from the ditch of the chassis assy. Note 3: Please pull it out carefully so as not to damage. 2 Remove the LCD assy flexible board in the direction of arrow A.

  • Page 15: 2-10. Mother Board

    NWZ-S754/S755 2-10. MOTHER BOARD 5 two screws (M1.4) 1 sheet (PWB) 2 Remove two solders of wire of battery assy (BAT1). 8 MOTHER board Note 1: When the battery assy (BAT1) is removed, refer to “ABOUT THE HANDLING OF THE BATTERY ASSY (BAT1)” (page 4).

  • Page 16: 2-11. Vol Key Assy

    NWZ-S754/S755 2-11. VOL KEY ASSY 2 sheet (wire) 1 sheet (PWB) 4 adhesive sheet (FPC) VOL key wire 7 VOL key assy VOL key assy black 6 Remove two solders of VOL key wire – – VOL key wire. 5 sheet (VOL FPC) 2-12.

  • Page 17: Test Mode

    NWZ-S754/S755 SECTION 3 TEST MODE 4-1-1. Power supply voltage check (VCHK) Note 1: Information on the test mode must correspond in enough This mode is used in case power supply voltage in the state where security. When the leakage has been revealed by any all power supply lines are starting is checked.
  • Page 18 NWZ-S754/S755 4-1-3. Standby current check (DSVCHK) 4-1-5. Battery voltage detection check (BATTCHK) This mode is used in case standby current is checked. This mode is used in case battery voltage is checked. Checking method: Checking method: 1. Enter the test mode.
  • Page 19 NWZ-S754/S755 4-2-1. Output check (OUTPUT) 4-2-3. Frequency characteristic 1 check (F1) “1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted. “20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is outputted. Checking method: Checking method: 1. Enter the test mode.
  • Page 20 NWZ-S754/S755 4-2-5. CH separation (L-ch) check (SEPLR) 4-2-7. Maximum output check (MAXOUT) “1 kHz 0 dBs L-ch VOLUME: 25” audio signal is outputted. “1 kHz 0 dBs L-ch/R-ch VOLUME: 30” (Headphone output when AVLS operates: “1 kHz 0 dBs L-ch/R-ch VOLUME: 13”) audio Checking method: signal is outputted.
  • Page 21 NWZ-S754/S755 4-2-9. Sound pressure regulation level check (SPCHK) 4-2-12. User specifi cation contents playback 2 (USER2) “1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is outputted. “/User2.oma” is reproduced. Checking method: Checking method: 1. Enter the test mode. 1. Enter the test mode.
  • Page 22 NWZ-S754/S755 4-3. Video (VIDEO) 4-3-3. User specifi cation contents playback 2 (USER2) “/User2.mp4” is reproduced. Screen display MPTAPP (X.XX.XX) Checking method: 1. Enter the test mode. POWER 2. Press the [ ] keys to select the “VIDEO”, and press the AUDIO ] key to enter the minor item.
  • Page 23 NWZ-S754/S755 4-4. Video output (VIDEO OUT) 4-4-2. User specifi cation contents output (USER1) Screen display Note: Not used for the servicing. MPTAPP (X.XX.XX) 4-5. Other (OTHER) POWER AUDIO Screen display VIDEO VIDEO OUT COLOR MPTAPP (X.XX.XX) OTHER USER1 CLESTE POWER...
  • Page 24 NWZ-S754/S755 4-5-2. Key check (KEY) 4-5-7. Firmware version check (FWVER) The operation of the key is confi rmed. The fi rmware version is displayed. Checking method: Checking method: 1. Enter the test mode. 1. Enter the test mode. 2. Press the [ ] keys to select the “OTHER”, and press the...
  • Page 25 NWZ-S754/S755 4-6. CLESTE 4-8-2. Direct recording recording (REC) In this mode, it records by the format specifi ed in “Direct recording format select”. Note: Not used for the servicing. Checking method: 4-7. DAC 1. Enter the test mode. 2. Press the [ ] keys to select the “DIREC”, and press the [...
  • Page 26 NWZ-S754/S755 4-8-4. Direct recording format select (FORMAT) 4-9-1. Reception output check (RCVCHK) FM tuning checked. Note: Not used for the servicing. Checking method: 4-8-5. Built-in microphone check (MICCHK) 1. Enter the test mode. In this mode, the built-in microphone is checked.
  • Page 27 NWZ-S754/S755 4-10-1. Microphone gain (L-ch) adjustment (GAIN-L) 4-10-3. Noise canceling headphone detection (NCH- Microphone gain (L-ch) is adjusted. PCHK) The detection of noise canceling headphone is executed. Checking method: 1. Enter the test mode. headphone is Note: Noise canceling necessary to execute this mode.

  • Page 28: Exploded Views

    4-192-478-01 KNOB (HOLD) (BLACK) (NWZ-S754: E, AUS) 4-192-478-11 KNOB (HOLD) (WHITE) 4-192-478-21 KNOB (HOLD) (LIGHT PINK) 9-885-150-89 PANEL (REAR) ASSY (BLUE) (NWZ-S754: E, AUS) 4-192-478-31 KNOB (HOLD) (GOLD) 9-885-150-93 PANEL (REAR) ASSY (WHITE) (NWZ-S754: AEP, UK) 4-192-478-61 KNOB (HOLD) (BLUE)

  • Page 29: Front Panel Section

    NWZ-S754/S755 4-2. FRONT PANEL SECTION LCD, battery section Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1793-285-A FRONT (B) ASSY, MECHANICAL (BLACK) X-2549-832-2 BUTTON (FRONT) (N) ASSY A-1793-286-A FRONT (W) ASSY, MECHANICAL (WHITE) (BACK, OPTION, v , B , V , b , u ) (GOLD)

  • Page 30: Lcd, Battery Section

    NWZ-S754/S755 4-3. LCD, BATTERY SECTION • Rear side view Please cut out and use POLYIMIDE SHEET for a specified size when you exchange it for new parts. Note 1: As for this part, the material or thickness might be different compared with before.

  • Page 31: Chassis Section

    HOLDER (HP) 1-967-566-11 VOL KEY WIRE 4-198-036-01 SHEET (HP JACK) 3-234-449-05 SCREW (M1.4) 9-885-150-84 SVX 8G PC BOARD ASSY (C) (NWZ-S754) 9-885-148-43 MOTHER BOARD, COMPLETE (for SERVICE) 9-885-150-85 SVX 16G PC BOARD ASSY (C) (NWZ-S755) 4-270-374-01 SHEET (FPC) ADHESIVE 4-192-485-01...

  • Page 32: Accessories

    NWZ-S754/S755 SECTION 5 ACCESSORIES Ref. No. Part No. Description Remark 1-477-125-23 ADAPTOR, PLUG (DUAL) • Earbud sizes and color (Plug adaptor for in-fl ight use (single/dual)) Outside Headphones Size Inside color WALKMAN color 1-835-737-12 CONNECTION CORD (EXTERNAL AUDIO INPUT) color...
  • Page 33 NWZ-S754/S755 MEMO...
  • Page 34 NWZ-S754/S755 REVISION HISTORY Checking the version allows you to jump to the revised page. Also, clicking the version at the top of the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2010.09...

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