Sony NW-E50 Service Manual
Sony NW-E50 Service Manual

Sony NW-E50 Service Manual

Portable ic audio player
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SERVICE MANUAL
Ver 1.3 2004.09
Maximum recording time (Approx.)
NW-E50
ATRAC3*
2 hr. 00 min. (132 kbps)
2 hr. 30 min. (105 kbps)
4 hr. 10 min. (66 kbps)
MP3
1 hr. 00 min. (256 kbps)
2 hr. 00 min. (128 kbps)
NW-E70
ATRAC3*
4 hr. 10 min. (132 kbps)
5 hr. 20 min. (105 kbps)
8 hr. 30 min. (66 kbps)
MP3
2 hr. 00 min. (256 kbps)
4 hr. 00 min. (128 kbps)
* The values for ATRAC3, ATRAC3plus apply if the
MP3 file manager software has been erased from the
built-in flash memory.
Sampling frequency
ATRAC3, ATRAC3plus, MP3: 44.1 kHz
Audio compression technology
Adaptive Transform Acoustic Coding3 (ATRAC3)
Adaptive Transform Acoustic Coding3plus
(ATRAC3plus)
MPEG1 Audio Layer-3 (MP3): 8 to 320 kbps, variable
bit rate-compliant
Frequency response
20 to 20,000 Hz (single signal measurement)
Output
Headphone: Stereo mini-jack
Sony Corporation
9-877-731-04
2004I16-1
Personal Audio Company
 2004.09
Published by Sony Engineering Corporation
NW-E50/E70
Photo : NW-E70
SPECIFICATIONS
Signal-to-noise ratio (S/N)
80 dB or more (excluding ATRAC3 66 kbps)
ATRAC3plus*
Dynamic range
4 hr. 20 min. (64 kbps)
5 hr. 50 min. (48 kbps)
85 dB or more (excluding ATRAC3 66 kbps)
Operating temperature
5˚C to 35˚C (67˚F to 95˚F)
Power source
LR03 (Size AAA) alkaline battery
Battery life (continuous playback)
ATRAC3plus*
8 hr. 40 min. (64 kbps)
ATRAC3 format: Approximately 70 hours
11 hr. 40 min. (48 kbps)
ATRAC3plus format: Approximately 60 hours
MP3 format: Approximately 50 hours
Dimension
56 ×
37.3 × 15 mm
(w/h/d, projecting parts not included)
Mass
Approx. 40 g (battery not included)
Supplied accessories
Headphones (1)
Dedicated USB cable (1)
Carrying pouch (1)
Neck strap (1)
Earbuds (Size S, L) (NW-E70) (1)
Extension headphone cord (1)
CD-ROM (1)
Operating Instructions (1)
SonicStage operating instructions (1)
Design and specifications are subject to change
without notice.
Chinese Model
PORTABLE IC AUDIO PLAYER
E Model

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Summary of Contents for Sony NW-E50

  • Page 1 Frequency response 20 to 20,000 Hz (single signal measurement) Design and specifications are subject to change without notice. Output PORTABLE IC AUDIO PLAYER Headphone: Stereo mini-jack Sony Corporation 9-877-731-04 2004I16-1 Personal Audio Company  2004.09 Published by Sony Engineering Corporation...
  • Page 2: Table Of Contents

    NW-E50/E70 TABLE OF CONTENTS 1. GENERAL Microsoft, Windows and Windows Media are trademarks or ·········································································· 3 registered trademarks of Microsoft Corporation in the United States and/or other countries. 2. TEST MODE ······································································ 5 US and foreign patents licensed from Dolby Laboratories.
  • Page 3: General

    NW-E50/E70 SECTION 1 GENERAL This section is extracted from instruction manual. Locating controls Front side Rear side 1 Strap hole for attaching the strap 7 Headphone jack 2 REPEAT/SOUND button 8 Nx button 3 MENU button 9 Shuttle switch You can switch to the Time display by pressing the MENU button for a while.
  • Page 4 NW-E50/E70 Adjusting the As you did in step 3, adjust the settings for “month” and “date.” current time After rotating the Shuttle switch to adjust the setting (DATE- “date” setting and pressing the Nx button to confirm, the display switches to the time TIME) setting screen.
  • Page 5: Test Mode

    NW-E50/E70 SECTION 2 TEST MODE STANDING PROCEDURE Procedure 1: Set a dry battery into NW-E50/E70, and keep the battery lid open. [GROUP] Procedure 2: In HOLD state, while pushing Nx and button, turn power on by closing the battery lid of NW-E50/E70.
  • Page 6: Disassembly

    NW-E50/E70 SECTION 3 DISASSEMBLY Note : Disassemble the unit in the order as shown below. 3-1. CASE,CHASSIS (FRONT) ASSY (Page 6) 3-2. DISPLAY BOARD ASSY (Page 7) 3-3. MAIN BOARD ASSY (Page 7) Note : Follow the disassembly procedure in the numerical order given.
  • Page 7: Display Board Assy

    NW-E50/E70 3-2. DISPLAY BOARD ASSY 4 DISPLAY board MAIN board section 3 cover section 2 tapping screw (1.7) lid (usb) (sub assy) 3-3. MAIN BOARD ASSY 1 tapping screw (B1.7x7) ornament assy 4 MAIN board 3 chassis(rear) 2 two claws...
  • Page 8: Diagrams

    NW-E50/E70 SECTION 4 DIAGRAMS Note on Schematic Diagram: Note on Printed Wiring Board • All capacitors are in µF unless otherwise noted. pF: µµF • X : parts extracted from the component side. • Y : parts extracted from the conductor side.
  • Page 9: Block Diagram

    NW-E50/E70 4-1. BLOCK DIAGRAM NAND FLASH RAM Q460 NOR FLASH SRAM IC461 IC450 2.8V DQ0 - 15 A1 - 19 I/O1 - 8 29 - 36, 38 - 45 1 - 8, 16 - 25, 48 13 14 15 26 28...
  • Page 10: Display Board (Side A)

    NW-E50/E70 4-2. PRINTED WIRING BOARD – DISPLAY BOARD (SIDE A) – :Uses unleaded solder. DISPLAY BOARD (SIDE A) L I Q U I D C R Y S TA L D I S P L AY MAIN BOARD CN401 (Page 14)
  • Page 11: Display Board (Side B)

    NW-E50/E70 4-3. PRINTED WIRING BOARD – DISPLAY BOARD (SIDE B) – :Uses unleaded solder. DISPLAY BOARD (SIDE B) TP410 SL700 BATTERY (BACK-UP) R807 (SECONDARY) R802 TP706 S705 R801 R803 TP401 IC 801 REPEAT SOUND R805 R804 C802 D801 ACCESS D702...
  • Page 12: Schematic Diagram - Display Board

    NW-E50/E70 4-4. SCHEMATIC DIAGRAM – DISPLAY BOARD – S701 S705 CN402 C702 S708 S704 100p R701 R704 R700 TP701 ADK2 TP705 GROUP TP804 VDD_EL L801 TP850 LCDRST TP401 TP851 LCDCS TP410 TP852 LCDCK TP853 LCDDA TP805 TP806 C522 C801 C802 TP706 0.01...
  • Page 13: Printed Wiring Board - Main Board (Side A)

    NW-E50/E70 IC400 (microcomputer) and IC450 (nor flash sram) on MAIN 4-5. PRINTED WIRING BOARD – MAIN (SIDE A) – :Uses unleaded solder. board cannot be replaced individually. Replace it with MAIN board assembly for service. MAIN BOARD (SIDE A) C415...
  • Page 14: Printed Wiring Board - Main Board (Side B)

    NW-E50/E70 4-6. PRINTED WIRING BOARD – MAIN (SIDE B) – :Uses unleaded solder. MAIN BOARD VOLUME VOLUME HOLD. (SIDE B) IC501 CN400 IC502 IC504 C512 R534 IC505 IC510 IC700 CN401 IC500 J301 BATTERY SIZE "AAA" DISPLAY (IEC DESIGNATION LR03) BOARD 1PC, 1.5V...
  • Page 15: Schematic Diagram - Main Board (1/2)

    NW-E50/E70 IC400 (microcomputer) on MAIN board cannot be replaced 4-7. SCHEMATIC DIAGRAM – MAIN BOARD (1/2) – individually. Replace it with MAIN board assembly for service. VDR404 VDR403 R728 R729 R453 R726 470k R462 R727 C464 R463 100k Q460 NDS356AP...
  • Page 16: Schematic Diagram - Main Board (2/2)

    NW-E50/E70 IC450 (nor flash sram) on MAIN board cannot be replaced 4-8. SCHEMATIC DIAGRAM – MAIN BOARD (2/2) – individually. Replace it with MAIN board assembly for service. R450 C450 CN400 TP504 VBUS TP414 TP314 R533 R532 IC509 XC62HR2301MR TP509 2.3V...
  • Page 17 NW-E50/E70 • IC BLOCK DIAGRAMS IC301 NJM2776RB2 (TE2) (MAIN board) V + 2 OUT1 OUT2 8 IN2 STANDBY STANDBY BIAS V + 1 VREF IC700 RS5C348A-E2-FB (MAIN board) 32 kHz 32KOUT ALARM W REGISTER OUTPUT COMPARATOR (WEEK, MIN, HOUR) CONTROL...
  • Page 18: Exploded Views

    NW-E50/E70 Ver 1.3 SECTION 5 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may have • Color Indication of Appearance Parts some differences from the original one. Example: • Items marked “*” are not stocked since they are KNOB, BALANCE (WHITE) .
  • Page 19: Main Board Section

    NW-E50/E70 Ver 1.3 5-2. MAIN BOARD SECTION Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-318-203-81 SCREW (B1.7X7), TAPPING 3-266-594-21 CHASSIS (REAR)(RED) 3-266-604-01 ORNAMENT 3-266-594-31 CHASSIS (REAR)(SILVER:E70, HAIR LINE) 3-266-584-01 BUTTON (PLAY) X-2021-522-1 MAIN BOARD, COMPLETE (E50)
  • Page 20: Electrical Parts List

    NW-E50/E70 Ver 1.2 SECTION 6 ELECTRICAL PARTS LIST DISPLAY MAIN NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they • COILS uH: µH parts list may be different from the parts are seldom required for routine service. Some...
  • Page 21 NW-E50/E70 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C404 1-125-777-11 CERAMIC CHIP 0.1uF < FERRITE BEAD > C405 1-125-777-11 CERAMIC CHIP 0.1uF C406 1-164-937-11 CERAMIC CHIP 0.001uF FB100 1-469-082-21 INDUCTOR, FERRITE BEAD (1005) C407 1-125-777-11 CERAMIC CHIP 0.1uF...
  • Page 22 NW-E50/E70 Ver 1.1 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R400 1-218-989-11 RES-CHIP 1/16W R533 1-218-990-11 SHORT CHIP R401 1-218-965-11 RES-CHIP 1/16W R534 1-218-941-11 RES-CHIP 1/16W R402 1-218-965-11 RES-CHIP 1/16W R702 1-218-965-11 RES-CHIP 1/16W...
  • Page 23 NW-E50/E70 Ver 1.1 Ref. No. Part No. Description Remarks 3-266-815-01 STRAP, NECK 3-267-071-12 MANUAL, INSTRUCTION (ENGLISH, CHINESE) (CH) 3-267-071-31 MANUAL, INSTRUCTION (HK, TW) 3-267-071-61 MANUAL, INSTRUCTION (HK, TW) 3-267-071-71 MANUAL, INSTRUCTION (KR) 3-267-136-01 APPLICATION SOFT (CD-ROM) (SS2.0+MP3MGR) (SonicStage) 3-267-746-61 MANUAL (APPLI), INSTRUCTION (SonicStage)
  • Page 24 2004.04 2004.06 Addition of Hong Kong, Korea and Taiwan models. 2004.08 Addition of Part No. for the MAIN board of NW-E50 in Electricl Parts List (SPM-04062) 2004.09 Addition of Part No. for NW-E70 white model to Ref No.2 and addition of color for Ref No.61 on Exploded Views...

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