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Sony NW-MS77DR Service Manual
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Sony NW-MS77DR Service Manual

Sony NW-MS77DR Service Manual

Network walkman
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SERVICE MANUAL
Ver 1.1 2004. 05
Maximum recording time
When using the built-in flash memory only:
ATRAC3
4 hr. 10 min. (132 kbps)
5 hr. 20 min. (105 kbps)
8 hr. 30 min. (66 kbps)
When using "Memory Stick" (64MB):
ATRAC3
60 min. (132 kbps)
80 min. (105 kbps)
120 min. (66 kbps)
When using "Memory Stick" (128MB):
ATRAC3
120 min. (132 kbps)
160 min. (105 kbps)
240 min. (66 kbps)
Sampling frequency
44.1 kHz
Audio compression technology
Adaptive Transform Acoustic Coding3 (ATRAC3)
Adaptive Transform Acoustic Coding3plus
(ATRAC3plus)
Frequency response
20 to 20,000 Hz (single signal measurement during playback)
Output
Headphone: Stereo mini-jack
Signal-to-noise ratio (S/N)
79 dB or more (excluding ATRAC3 66 kbps)
Sony Corporation
9-877-781-02
Personal Audio Company
2004E02-1
Published by Sony Engineering Corporation
© 2004.05
NW-MS77DR

SPECIFICATIONS

ATRAC3plus
2 hr. (256 kbps)
8 hr. 40 min. (64 kbps)
11 hr. 40 min. (48 kbps)
ATRAC3plus
30 min. (256kbps)
130 min. (64 kbps)
170 min. (48 kbps)
ATRAC3plus
60 min. (256kbps)
260 min. (64 kbps)
350 min. (48 kbps)
Dynamic range
85 dB or more (excluding ATRAC3 66 kbps)
Operating temperature
5°C to 35°C (67°F to 95°F)
Power source
• DC IN 1.2 V (from built-in rechargeable battery)
• DC IN 4.5 V (from AC power adaptor)
• USB power (from a computer through supplied USB cable)
Battery life (continuous playback)
ATRAC3 format: Approximately 44 hours
ATRAC3plus format: Approximately 36 hours
Dimension
7
36.4 x 48.5 x 18 mm (1
/
x 1
16
(w/h/d, projecting parts not included)
Mass
Approx. 54 g (1.9 oz) ("Memory Stick Duo" not included)
Supplied accessories
Recording USB cradle (1)
Headphones (1)
Dedicated USB cable (1)
AC power adaptor (for the supplied USB cradle) (1)
Carrying pouch (1)
Extension headphone cord (1)
Optical Digital cable (1)
Neck strap (1)
CD-ROM (1)
Operating Instructions (1)
SonicStage Operating Instructions (1)
Design and specifications are subject to change
without notice.

NETWORK WALKMAN

Canadian Model
AEP Model
UK Model
Tourist Model
15
23
/
x
/
inches)
16
32

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  • Page 1: Specifications

    Output Design and specifications are subject to change Headphone: Stereo mini-jack without notice. Signal-to-noise ratio (S/N) NETWORK WALKMAN 79 dB or more (excluding ATRAC3 66 kbps) Sony Corporation 9-877-781-02 Personal Audio Company 2004E02-1 Published by Sony Engineering Corporation © 2004.05...

  • Page 2: Table Of Contents

    NW-MS77DR Ver 1.1 TABLE OF CONTENTS OpenMG and its logo are trademarks of Sony Corporation. SonicStage and its logo are trademarks of Sony Corporation. Specifications ................1 “MagicGate Memory Stick” is trademark of Sony Corporation. “Memory Stick” and are trademarks of Sony Corporation.

  • Page 3: Servicing Notes

    NW-MS77DR SECTION 1 SERVICING NOTES [ Notes on using “Memory Stick Duo” ] • Do not remove “Memory Stick Duo” during reading or writing data. • Data may be damaged in the following cases. – The Network Walkman is removed from the USB cradle or the dedicated USB cable is unplugged while reading or writing data.

  • Page 4: Test Mode

    NW-MS77DR SECTION 3 TEST MODE • STANDING PROCEDURE Procedure 1: In HOLD state, while pushing Nx button, push [RESET] button. Procedure 2: Insert the memory stick written “testmode.ind” to NW-MS77DR. • Preparation “testmode.ind” Create a random text file in the root directory of Memory Stick Duo on Windows, file it as the name “testmode”...

  • Page 5: Disassembly

    NW-MS77DR SECTION 4 DISASSEMBLY • The equipment can be removed using the following procedure. 4-1. DISASSEMBLY FROW Case (R) ASSY Case (U) sub ASSY, play unit LCD board (Page 5) (Page 5) (Page 6) 4-4. Button (MS) ASSY, 4-4. Case (R) sub ASSY...

  • Page 6: Lcd Board

    NW-MS77DR 4-3. LCD BOARD case (U) sub assy 3 LCD board 1 four craws 4-4. BUTTON (MS) ASSY, CHASSIS (R) ASSY 1 button (MS) assy case (R) sub assy 5 spring (shutter) 6 two screws (M1.4x3) 4 shutter (MS) 3 screw (M1.4)

  • Page 7: Ni-Mh Battery, Power Board

    NW-MS77DR 4-5. NI-MH BATTERY, POWER BOARD 1 connector (CN502) 5 POWER Board Note on assembling POWER board On assembling POWER board, 3 connector (CN501) secure it to the gap on the chassis (R) assembly. 4 NI-MH battery chassis (R) 4-6. NAND BOARD, MAIN BOARD...

  • Page 8: Diagrams

    NW-MS77DR SECTION 5 DIAGRAMS Note on Schematic Diagram: Note on Printed Wiring Board: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or • X : parts extracted from the component side. • Y : parts extracted from the conductor side.

  • Page 9: Block Diagrams

    NW-MS77DR 5-1. BLOCK DIAGRAMS FLASH RAM NAND FLASH RAM IC463 Q461 NOR FLASH SRAM IC461 IC451 2.8V DQ0 - 15 A0 - 17 I/O1 - 8 29 - 36, 38 - 45 1 - 8, 17 - 25, 48 13 14 15 26 28...

  • Page 10: Schematic Diagram - Main Section (1/2)

    NW-MS77DR 5-2. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – (Page 15) (Page 11)

  • Page 11: Schematic Diagram - Main Section (2/2)

    NW-MS77DR 5-3. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – (Page 17) (Page 13) (Page 10)

  • Page 12: Printed Wiring Boards - Main Section

    NW-MS77DR 5-4. PRINTED WIRING BOARD – MAIN SECTION – : Uses unleaded solder. MAIN BOARD • Semiconductor BOARD Location (SIDE B) (Page 14) MAIN BOARD Ref. No. Location (SIDE A) D301 C306 D701 F-11 D702 F-11 C101 R765 NAND C102...

  • Page 13: Schematic Diagram - Lcd Section

    NW-MS77DR 5-5. SCHEMATIC DIAGRAM – LCD SECTION – (Page 11)

  • Page 14: Printed Wiring Boards - Lcd Section

    NW-MS77DR 5-6. PRINTED WIRING BOARD – LCD SECTION – : Uses unleaded solder. LCD BOARD LCD BOARD (SIDE B) • Semiconductor (SIDE A) Location FB301 Ref. No. Location D801 J301 IC801 FB201 (HEADPHONE) S705 S704 – FB101 C827 R823 C822...

  • Page 15: Schematic Diagram - Nand Section

    NW-MS77DR 5-7. SCHEMATIC DIAGRAM – NAND SECTION – (Page 10)

  • Page 16: Printed Wiring Boards- Nand Section

    NW-MS77DR 5-8. PRINTED WIRING BOARD – NAND SECTION – : Uses unleaded solder. (SIDE B) NAND BOARD (SIDE A) NAND BOARD S715 R771 RESET R772 Q781 R770 IC463 D402 D781 ACCESS C464 R464 TH746 C735 R463 S711 IC461 HOLD R735...

  • Page 17: Schematic Diagram - Power Section

    NW-MS77DR 5-9. SCHEMATIC DIAGRAM – POWER SECTION – (Page 11)

  • Page 18: Printed Wiring Boards- Power Section

    NW-MS77DR 5-10. PRINTED WIRING BOARD – POWER SECTION – : Uses unleaded solder. POWER BOARD POWER BOARD (SIDE A) (SIDE B) C503 R504 C508 R507 C504 RECHARGEABLE Q502 BATTERY R510 IC501 NI–MH R512 R511 R508 D501 Q503 R509 IC502 Q504...

  • Page 19: Main Board

    NW-MS77DR – MAIN Board – IC301 NJM2776RB2 (TE2) V + 2 OUT1 OUT2 8 IN2 STANDBY STANDBY BIAS V + 1 VREF IC731 RS5C348A-E2-FB 32 kHz 32KOUT ALARM W REGISTER OUTPUT COMPARATOR (WEEK, MIN, HOUR) CONTROL ALARM D REGISTER COMPARATOR...

  • Page 20: Exploded Views

    NW-MS77DR SECTION 6 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number have some differences from the original one. in the exploded views are not supplied. • Items marked “*” are not stocked since they •...

  • Page 21: Chassis Section

    NW-MS77DR 6-2. CHASSIS SECTION Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-247-178-01 CHASSIS (R) 3-703-816-81 SCREW (M1.4X6.0), SPECIAL HEAD 3-247-196-01 SPRING (HOLD) 3-247-179-02 BRACKET (SHUTTER) 3-225-996-11 SCREW (M1.4) (EG), PRECISION PAN MAIN BOARD SUB ASSY (for SERVICE) 3-247-180-01 SCREW (1.4X3)

  • Page 22: Electrical Parts List

    NW-MS77DR SECTION 7 MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • RESISTORS The components identified by mark 0 parts list may be different from the parts All resistors are in ohms. or dotted line with mark 0 are critical...
  • Page 23 NW-MS77DR MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C413 1-164-850-11 CERAMIC CHIP 10PF 0.5PF < TRANSISTOR > C414 1-164-850-11 CERAMIC CHIP 10PF 0.5PF C415 1-164-843-11 CERAMIC CHIP 0.25PF 50V Q507 6-550-746-01 TRANSISTOR 3LN01S-K-TL-E C416 1-164-843-11 CERAMIC CHIP 0.25PF 50V...
  • Page 24 NW-MS77DR MAIN NAND POWER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R556 1-218-990-11 SHORT CHIP C466 1-125-837-91 CERAMIC CHIP 6.3V R557 1-218-989-11 RES-CHIP 1/16W C735 1-756-305-11 BATTERY, PAS SECONDARY R558 1-218-989-11 RES-CHIP 1/16W < DIODE >...
  • Page 25 NW-MS77DR POWER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < COIL > 2-025-405-31 APPLICATION SOFT (SS2.0.01) (CD-ROM) (JE) 3-042-515-11 POUCH, CARRYING L501 1-419-861-21 INDUCTOR 100uH 3-248-529-14 MANUAL, INSTRUCTION (ENGLISH) L502 1-419-861-21 INDUCTOR 100uH 3-248-529-22 MANUAL, INSTRUCTION (FRENCH) (CND, AEP) 3-248-529-33 MANUAL, INSTRUCTION <...

  • Page 26: Revision History

    NW-MS77DR REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2004.04...

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