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Sony Walkman NWZ-A726 Service Manual
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Sony Walkman NWZ-A726 Service Manual

Sony Walkman NWZ-A726 Service Manual

Digital media player
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SERVICE MANUAL
Ver. 1.0 2008.02
 ATRAC is trademark of Sony Corporation.
 "WALKMAN" and "WALKMAN" logo are registered trademarks of Sony
Corporation.
and
are trademarks 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 Corporation.
 Macintosh is a trademark of Apple Inc.
 QuickTime and the QuickTime logo are trademarks or registered trademarks
of Apple Inc., used under license therefrom.
 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 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://MPEGLA.COM
 US and foreign patents licensed from Dolby Laboratories.
 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 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 content 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 WM-DRM 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.
Program ©2008 Sony Corporation
Documentation ©2008 Sony Corporation
Sony Corporation
9-889-029-01
2008B05-1
Audio Business Group
©
2008.02
Published by Sony Techno Create Corporation
NWZ-A726/A726B/A728/
Photo: NWZ-A728
Supported file format
Music
File format
MP3(MPEG-1 Layer3) file format, ASF file format, MP4 file format, Wave-Riff file
format
File extension
MP3 (.mp3), WMA*
Codec
MP3
WMA*
AAC-LC*
Linear PCM
Video
File format
MP4 file format, "Memory Stick" video format
File extension
.mp4, .m4v
Codec
Video
Audio
File size
Max. 2 GB
The number of files
Max. 1,000
Photo*
5
File format
Compatible with DCF 2.0/Exif 2.21file format
File extension
.jpg
Codec
Profile: Baseline Profile
Number of pixels: Max. 4,000 × 4,000 pixels (16,000,000 pixels)
The number of files
Max. 10,000
*
1
WM-DRM 10 files are compatible.
*
2
Copyright protected AAC-LC files cannot be played back.
*
3
Sampling frequency may not correspond to all encoders.
*
4
Non-standard bit rates or non-guaranteed bit rates are included depending on the
sampling frequency.
*
5
Some photo files cannot be played back, depending on their file formats.
A728B/A729
US Model
NWZ-A726/A726B/A728/A728B/A729
Canadian Model
NWZ-A726/A728
E Model
Australian Model
Tourist Model
East European Model
NWZ-A726/A728/A729

SPECIFICATIONS

1
2
(.wma), AAC-LC*
(.mp4, .m4a, .3gp), Linear PCM (.wav)
Bit rate: 32 to 320 kbps (Supports variable bit rate (VBR))
Sampling frequency*
3
: 32, 44.1, 48 kHz
1
Bit rate: 32 to 192 kbps (Supports variable bit rate (VBR))
Sampling frequency*
3
: 44.1 kHz
2
Bit rate: 16 to 320 kbps (Supports variable bit rate (VBR))*
3
Sampling frequency*
: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz
Bit rate: 1,411 kbps
Sampling frequency*
3
: 44.1 kHz
AVC
Profile: Baseline Profile
(H.264/AVC)
Level: Max. 1.3
Bit rate: Max. 768 kbps
MPEG-4
Profile: Simple Profile
Bit rate: Max. 2,500 kbps
Frame rate: Max. 30 fps
Resolution: Max. QVGA (320 × 240)
AAC-LC
Channel number: Max. 2 channels
Sampling frequency*
Bit rate: Max. 288 kbps per 1 channel
– Continued on next page –
DIGITAL MEDIA PLAYER
4
3
: 24, 32, 44.1, 48 kHz

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Summary of Contents for Sony Walkman NWZ-A726

  • Page 1: Specifications

    East European Model NWZ-A726/A728/A729 Photo: NWZ-A728 SPECIFICATIONS  ATRAC is trademark of Sony Corporation.  “WALKMAN” and “WALKMAN” logo are registered trademarks of Sony Corporation.  Supported file format are trademarks of Sony Corporation.  Microsoft, Windows, Windows Vista and Windows Media are trademarks or...

  • Page 2: Supplied Accessories

    Recordable number of photos may be less depending on file sizes. Capacity (User available capacity)* NWZ-A726: 4 GB (Approx. 3.57 GB = 3,840,638,976 bytes) NWZ-A728: 8 GB (Approx. 7.30 GB = 7,840,956,416 bytes) NWZ-A729: 16 GB (Approx. 14.7 GB = 15,841,820,672 bytes) NWZ-A726B: 4 GB (Approx.

  • Page 3: Table Of Contents

    NWZ-A726/A726B/A728/A728B/A729 SECTION 1 SERVICING NOTES TABLE OF CONTENTS UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. SERVICING NOTES ..........(Caution: Some printed circuit boards may not come printed with...

  • Page 4: Formatting Memory

    NWZ-A726/A726B/A728/A728B/A729  NOTE THE MAIN BOARD REPLACING Press the /// button to select “Common Settings,” and then press the  button to confirm. When the MAIN board is replaced, format it according to the fol- The list of “Common Settings” options appears.

  • Page 5: General

    NWZ-A726/A726B/A728/A728B/A729 SECTION 2 This section is extracted GENERAL from instruction manual. Parts and Controls  HOLD switch  Strap hole Front You can protect the player against Used to attach a strap (sold accidental operation by using the separately). You can attach the HOLD switch when carrying it.

  • Page 6: Disassembly

    NWZ-A726/A726B/A728/A728B/A729 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. COVER (REAR), REAR ASSY (Page 6) 3-4. MAIN BOARD 3-3. BATTERY (Page 7) (Page 7) 3-5. LCD ASSY (Page 8) Note: Follow the disassembly procedure in the numerical order given.

  • Page 7: Battery

    NWZ-A726/A726B/A728/A728B/A729 3-3. BATTERY Note: This illustlation sees the battery assy from back. BATT wire sheet Note 2: When removing battery, don't remove by the impossible power. spacer (line in) battery lead wire connector (black) (CN901) adhesive sheet (BATT) lead wire (red) Note 3: Adhesive sheet (BATT) cannot re-used.

  • Page 8: Lcd Assy

    NWZ-A726/A726B/A728/A728B/A729 3-5. LCD ASSY two claws Open the LCD assy in the direction of the arrow. two claws LCD flexible board boss LCD assy Pull out the LCD flexible board. two screws (B1.4) sheet (LCD-B) LCD assy LCD flexible board...

  • Page 9: Test Mode

    NWZ-A726/A726B/A728/A728B/A729 SECTION 4 TEST MODE 4-1-1. Power supply voltage check Note: 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 10 NWZ-A726/A726B/A728/A728B/A729 4-1-3. Standby current check 4-1-5. Battery voltage detection check 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. 1. Enter the test mode.
  • Page 11 NWZ-A726/A726B/A728/A728B/A729 4-2-1. Output check 4-2-3. Frequency characteristic 1 check “1 kHz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output- “20 Hz 0 dBs L-ch/R-ch VOLUME: 25” audio signal is output- ted. ted. Checking method: Checking method: 1. Enter the test mode.
  • Page 12 NWZ-A726/A726B/A728/A728B/A729 4-2-5. CH separation (L-ch) check 4-2-7. Maximum output check “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 13 NWZ-A726/A726B/A728/A728B/A729 4-2-9. Sound pressure regulation level check 5. In this state, each time the [VOL –] key is pressed, LCD back light brightness min/max/middle switch is performed. “1 kHz 0 dBs L-ch/R-ch VOLUME: 30” audio signal is output- 6. Press the [BACK] key, return to minor item selection screen.
  • Page 14 NWZ-A726/A726B/A728/A728B/A729 4-4-2. Key check 4-4-7. Firmware version check 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 [ ] key to select the “OTHER”, and press the [...
  • Page 15 NWZ-A726/A726B/A728/A728B/A729 4-4-8. NAND capacity check 4-5-2. Clear stereo setting (No cable) Capacity of NAND fl ash memory, present bud block, maximum This mode is according to an original sound playback, for adjust- bud block, and vender ID are displayed. ment to right and left sound.
  • Page 16 NWZ-A726/A726B/A728/A728B/A729 MEMO...

  • Page 17: Diagrams

    NWZ-A726/A726B/A728/A728B/A729 SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAM - MAIN Section - CN851 (1/3) USB CONTROLLER SYSTEM CONTROLLER (WM-PORT) IC601 (1/2) IC501 USB DATA0 – USB DATA15 CD0 – CD15 AB0_D0 – AB0_D15 USB ADDRESS1 – USB ADDRESS8 D– CA1 – CA8 AB0_A1 –...
  • Page 18 NWZ-A726/A726B/A728/A728B/A729 5-2. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section - SPIO_SO, SPIO_SK, SPIO_LCD_XCS SPIO_SO SPIO_SO SPIO_SK SIGNAL PATH SPIO_LCD_XCS RESET : VIDEO LCD_PON W3 R0 – R5 LCD_R0 – LCD_R5 G0 – G5 LCD_G0 – LCD_G5 B0 – B5 LCD_B0 – LCD_B5...
  • Page 19 NWZ-A726/A726B/A728/A728B/A729 THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For Printed Wiring Boards. For Schematic Diagrams. Note: Note: • Y : parts extracted from the conductor side.

  • Page 20: Printed Wiring Board - Main Board (Side A)

    NWZ-A726/A726B/A728/A728B/A729 5-3. PRINTED WIRING BOARD - MAIN Board (Side A) - • : Uses unleaded solder. R256 FB301 R106 R206 R123 R223 FB201 R210 FB101 R110 MAIN BOARD (SIDE A) D101 C307 R209 R208 FB854 C321 R220 1C 2B 2E...

  • Page 21: Printed Wiring Board - Main Board (Side B)

    NWZ-A726/A726B/A728/A728B/A729 5-4. PRINTED WIRING BOARD - MAIN Board (Side B) - • : Uses unleaded solder. MAIN BOARD (SIDE B) (CHASSIS) J301 HP FLEXIBLE C330 C310 PRINT BOARD TB901 C107 C207 C312 C316 C328 (CHASSIS) C308 IC301 C315 C314 IC302...

  • Page 22: Schematic Diagram - Main Board (1/6)

    NWZ-A726/A726B/A728/A728B/A729 5-5. SCHEMATIC DIAGRAM - MAIN Board (1/6) - • See page 31 for IC Block Diagrams. • See page 33 for IC Pin Function Description. MAIN BOARD (1/6) X603 C668 11.2896MHz CL631 C669 R628 R633 470k CL610 R634 R629...

  • Page 23: Schematic Diagram - Main Board (3/6)

    NWZ-A726/A726B/A728/A728B/A729 5-6. SCHEMATIC DIAGRAM - MAIN Board (2/6) - MAIN BOARD (2/6) FL701 VDD_ECO_J DGND C711 SDR_D31 SDR_D31 SDR_D30 SDR_D30 C713 SDR_D29 SDR_D29 R702 SDR_D28 SDR_D28 100k SDR_D27 SDR_D27 SDR_D26 SDR_D26 SDR_D25 SDR_D25 SDR_D24 SDR_D24 SDR_D23 SDR_D23 SDR_D22 C701 SDR_D22...

  • Page 24: Schematic Diagram - Main Board (5/6)

    5-7. SCHEMATIC DIAGRAM - MAIN Board (3/6) - MAIN BOARD (3/6) R751 VDD_GP3 IC751 IC752 NAND FLASH MEMORY NAND FLASH MEMORY IC751 IC752 TH58NVG6D1DTG00 (NWZ-A726/A728/A726B/A728B) TH58NVG6D1DTG00 (NWZ-A728/A728B) TH58NVG6D1DTG20 (NWZ-A729) TH58NVG6D1DTG20 (NWZ-A729) NAND_D00 NWZ-A728/ NAND_D00 A728B NAND_D01 NAND_D01 R763 0 NAND_D02...
  • Page 25 NWZ-A726/A726B/A728/A728B/A729 5-8. SCHEMATIC DIAGRAM - MAIN Board (4/6) - • See page 31 for IC Block Diagrams. MAIN BOARD (4/6) VCC_VBUS IC B/D VDD_UNREG_J MAIN BOARD (6/6) R510 22 (Page 27) USB_INT C1 A (Chip Size Package) IC509 B1 GND...
  • Page 26 NWZ-A726/A726B/A728/A728B/A729 5-9. SCHEMATIC DIAGRAM - MAIN Board (5/6) - • See page 31 for IC Block Diagrams. • See page 33 for IC Pin Function Description. MAIN BOARD (5/6) VDD_DDC2_J MAIN BOARD R302 (6/6) VDD_HP_F (Page 27) IC B/D R304...
  • Page 27 NWZ-A726/A726B/A728/A728B/A729 5-10. SCHEMATIC DIAGRAM - MAIN Board (6/6) - • See page 31 for IC Block Diagrams. MAIN BOARD (6/6) VCC_VBUS VDD_UNREG_J MAIN BOARD R904 C909 C910 (4/6) (Page 25) VCC_VBAT DBG_UART_TXD C912 VDD_GP1_FB_J R859 1k CRD_AD CHG_ICTL DBG_UART_RXD Q901...

  • Page 28: Schematic Diagram - Sw Board (1/2)

    NWZ-A726/A726B/A728/A728B/A729 5-11. SCHEMATIC DIAGRAM - SW Board (1/2) - SW BOARD (1/2) CL891 R887 CL890 R881 R882 R883 R884 C882 0.01 R888 MAIN BOARD (Page 22) (1/6) S896 S895 S894 S893 S892 S891 S890 CN601 HOME PWR OFF CN881 BACK...

  • Page 29: Schematic Diagram - Sw Board (2/2)

    NWZ-A726/A726B/A728/A728B/A729 5-12. SCHEMATIC DIAGRAM - SW Board (2/2) - • See page 31 for IC Block Diagrams. SW BOARD (2/2) VDD_ANA_F VDD_LOG_F LCD_PON LCD_VSYNC LCD_HSYNC LCD_PXCLK C804 0.47 C805 0.47 IC B/D FL801 C803 C806 IC801 CN801 VOUT VDD_UNREG_J R831...

  • Page 30: 5-13. Printed Wiring Board - Sw Board

    NWZ-A726/A726B/A728/A728B/A729 5-13. PRINTED WIRING BOARD - SW Board - • : Uses unleaded solder. SW BOARD SW BOARD (SIDE A) (SIDE B) S893 S891 S890 HOME PWR OFF BACK OPTION S894 S896 S895 R887 R881 R809 C801 R801 FB807 FB806...

  • Page 31: Ic Block Diagrams

    NWZ-A726/A726B/A728/A728B/A729 • IC Block Diagrams – MAIN Board – IC301 XC6401FF58DR IC305 MAX4745ELB+TG069 COM1 ON / OFF CONTROL CB1 1 REGULATOR 2 VOUT2 NO1 2 VOLTAGE GND 3 REFERENCE NO2 4 REGULATOR 1 VOUT1 CB2 5 ON / OFF CONTROL...
  • Page 32 NWZ-A726/A726B/A728/A728B/A729 IC901 MAX8671CETL+TG069 30 DISET Li+/Li-PoLY SMART BATTERY POWER CHARGER & SELECTOR SYSTEM LOAD USUS SWITCH SMART POWER SELECTOR & CHARGER BIAS 29 FB3 HIGHEST 3.3V LOW 28 VL VOLTAGE DROPOUT SELECTOR 27 PV3 REG5 LOW REG3 DC-DC 26 LX3...
  • Page 33 NWZ-A726/A726B/A728/A728B/A729 • IC Pin Function Description MAIN BOARD IC302 CS43L21-CNZR (A/D CONVERTER, D/A CONVERTER, HEADPHONE AMP) Pin No. Pin Name Description LRCK L/R sampling clock signal output to the system controller SDA/CDIN Serial data input from the system controller SCL/CCLK...
  • Page 34 NWZ-A726/A726B/A728/A728B/A729 MAIN BOARD IC601 MC-10051BF1-FAE-A (SYSTEM CONTROLLER, POWER CONTROL) Pin No. Pin Name Description A1 to A3 Not used NAND_WEZ Write enable signal output to the NAND fl ash memory IO_B Not used A6 to A10 Not used A11 to A13...
  • Page 35 NWZ-A726/A726B/A728/A728B/A729 Pin No. Pin Name Description NAND_RBZ0 Read/busy signal output to the NAND fl ash memory NAND_ALE Address latch enable signal output to the NAND fl ash memory NAND_DA2 Two-way data bus with the NAND fl ash memory IO_B Not used...
  • Page 36 NWZ-A726/A726B/A728/A728B/A729 Pin No. Pin Name Description G23 to AB0_D15 to AB0_D13 Two-way data bus with the USB controller Not used USBSUSPD Not used Not used SDR_DATA25, H3 to H5 SDR_DATA27, Two-way data bus with the SD-RAM SDR_DATA31 NAND_RBZ1 Read/busy signal output to the NAND fl ash memory (NWZ-A728/A728B/A729 only)
  • Page 37 NWZ-A726/A726B/A728/A728B/A729 Pin No. Pin Name Description NAND_CEZ0 Chip enable signal output to the NAND fl ash memory Ground terminal M17, M18 Ground terminal LCD_B0 RGB video (blue) signal output to the liquid crystal display M22 to LCD_G0 to LCD_G3 RGB video (green) signal output to the liquid crystal display...
  • Page 38 NWZ-A726/A726B/A728/A728B/A729 Pin No. Pin Name Description U1 to U5 SDR_A12 to SDR_A8 Address signal output to the SD-RAM SDR_CASZ Column address strobe signal output to the SD-RAM Ground terminal U10 to Not used WAKEUP Wake up signal output terminal PSM_LODET...
  • Page 39 NWZ-A726/A726B/A728/A728B/A729 Pin No. Pin Name Description TU_STO Status signal input terminal Not used SDR_A0 Address signal output to the SD-RAM SDR_CLK Clock signal output to the SD-RAM AA22, Ground terminal AA23 AA24 Not used AA25 VANAIN Power supply input terminal (+2.9 - 4.2V)
  • Page 40 NWZ-A726/A726B/A728/A728B/A729 Pin No. Pin Name Description XHOLD_KEY HOLD switch input terminal KEY_WAKE Wake up signal input terminal Not used SPI0_CSZ2 Chip select signal output to the A/D, D/A converter VDD_L1 Power supply input terminal (+1.2V) IO_C Not used AD10 to...
  • Page 41 NWZ-A726/A726B/A728/A728B/A729 Pin No. Pin Name Description AF16, DD1INB1, DD1INB2 Power supply input terminal (+2.9 - 4.2V) AF17 AF18 DD1VFBK2 Power supply voltage feedback terminal AF19 DD1GNDA Ground terminal AF20 VGP1 Power supply output terminal (+2.85V) AF21 Not used AF22 Not used...

  • Page 42: Exploded Views

    NWZ-A726/A726B/A728/A728B/A729 SECTION 6 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • The mechanical parts with no reference • Refer to “COLOR VARIATION” in the they may have some difference from the number in the exploded views are not sup- “SERVICING NOTES”...

  • Page 43: Rear Assy Section

    REAR ASSY (PINK) (NWZ-A728: EE) X-2190-928-1 REAR ASSY (PINK) (NWZ-A726: CND) X-2190-952-1 REAR ASSY (GOLD) (NWZ-A728: EE) X-2190-929-1 REAR ASSY (BLACK) (NWZ-A726: E, AUS, JE) X-2190-953-1 REAR ASSY (BLACK) (NWZ-A729: US) X-2190-930-1 REAR ASSY (WHITE) (NWZ-A726: E, AUS, JE) X-2190-931-1 REAR ASSY (GOLD) (NWZ-A726: E., AUS, JE)

  • Page 44: Main Board Section

    MAIN BOARD, COMPLETE (for SERVICE) (16G) (NWZ-A729: EE) 3-874-254-01 SHEET (WM-P) X-2190-628-1 MAIN BOARD, COMPLETE (for SERVICE) (4G) 3-295-077-01 SPACER (PWB-S) (NWZ-A726: E, MX3, AUS, JE) 3-295-078-01 CUSHION (PWB) 3-295-078-11 CUSHION (PWB) X-2190-629-1 MAIN BOARD, COMPLETE (for SERVICE) (8G) (NWZ-A728: E, MX3, AUS, JE)

  • Page 45: Front Section

    NWZ-A726/A726B/A728/A728B/A729 6-4. FRONT SECTION J301 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-2190-683-1 FRONT ASSY (B) (for BLACK) 3-234-449-27 SCREW (M1.4) X-2190-684-1 FRONT ASSY (W/S) (for SILVER, WHITE) A-1506-857-A SW BOARD, COMPLETE X-2190-685-1...

  • Page 46: Electrical Parts List

    CERAMIC CHIP 0.1uF 6.3V X-2190-628-1 MAIN BOARD, COMPLETE (for SERVICE) (4G) C506 1-112-716-11 CERAMIC CHIP 0.1uF 6.3V (NWZ-A726: E, MX3, AUS, JE) C507 1-112-716-11 CERAMIC CHIP 0.1uF 6.3V X-2190-629-1 MAIN BOARD, COMPLETE (for SERVICE) (8G) (NWZ-A728: E, MX3, AUS, JE)
  • Page 47 NWZ-A726/A726B/A728/A728B/A729 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C643 1-112-717-91 CERAMIC CHIP 1uF 6.3V C925 1-112-815-91 CERAMIC CHIP 10uF 6.3V C644 1-100-611-91 CERAMIC CHIP 22uF 6.3V C645 1-112-716-11 CERAMIC CHIP 0.1uF 6.3V < CONNECTOR >...
  • Page 48 NWZ-A726/A726B/A728/A728B/A729 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark L602 1-457-412-11 INDUCTOR 10uH R606 1-208-911-11 METAL CHIP 0.5% 1/16W L901 1-481-097-11 INDUCTOR 4.7uH R607 1-218-985-11 RES-CHIP 470K 1/16W L902 1-481-097-11 INDUCTOR 4.7uH R608 1-218-953-11 RES-CHIP...
  • Page 49 NWZ-A726/A726B/A728/A728B/A729 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R753 1-240-726-91 METAL CHIP 470K 1/20W < TERMINAL > R754 1-240-726-91 METAL CHIP 470K 1/20W R755 1-240-718-91 METAL CHIP 100K 1/20W TB301 1-780-112-11 TERMINAL, CONTACT R756...
  • Page 50 NWZ-A728: E, AUS, JE/NWZ-A729: E, AUS, JE) R809 1-218-990-81 SHORT CHIP 3-299-382-61 MANUAL (QSG), INSTRUCTION (Quick Start Guide) (TRADITIONAL CHAINESE) R810 1-218-990-81 SHORT CHIP (NWZ-A726: E, AUS, JE/NWZ-A728: E, AUS, JE/ R829 1-218-977-11 RES-CHIP 100K 1/16W NWZ-A729: E, AUS, JE) R830 1-218-977-11 RES-CHIP...
  • Page 51 NWZ-A726/A726B/A728/A728B/A729 MEMO...

  • Page 52: Revision History

    NWZ-A726/A726B/A728/A728B/A729 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 2008.02...

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