Sony NW-E305, NW-E307 Schematic

NW-E305/E307

SERVICE MANUAL

Ver. 1.5 2007.04

Photo : NW-E307 (white)

US and foreign patents licensed from
Dolby Laboratories.

SPECIFICATIONS

Maximum recording time (Approx.)

NW-E305

ATRAC3plus
3 hr. 30 min. (320 kbps)

4 hr. 20 min. (256 kbps)
5 hr. 50 min. (192 kbps)
7 hr. 00 min. (160 kbps)
8 hr. 50 min. (128 kbps)
11 hr. 40 min. (96 kbps)
17 hr. 30 min. (64 kbps)
23 hr. 30 min. (48 kbps)

NW-E307

ATRAC3plus
7 hr. 00 min. (320 kbps)

8 hr. 50 min. (256 kbps)
11 hr. 40 min. (192 kbps)
14 hr. 00 min. (160 kbps)
17 hr. 40 min. (128 kbps)
23 hr. 30 min. (96 kbps)
35 hr. 00 min. (64 kbps)
47 hr. 00 min. (48 kbps)

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): 32 to 320 kbps,
variable bit rate-compliant

ATRAC3
8 hr. 30 min. (132 kbps)

MP3
4 hr. 20 min. (256 kbps)

8 hr. 50 min. (128 kbps)

ATRAC3
17 hr. 00 min. (132 kbps)

MP3
8 hr. 50 min. (256 kbps)

17 hr. 40 min. (128 kbps)

Frequency response

20 to 20,000 Hz (single signal measurement)

FM Frequency range

Overseas model: 76.0 to 108.0 MHz
Other models: 87.5 to 108.0 MHz

IF (FM)

225 kHz

Antenna

Headphone cord antenna

Interface

Headphone: Stereo mini
USB

Signal-to-noise ratio (S/N)

80 dB or more (excluding ATRAC3 132 kbps)

Dynamic range

85 dB or more (excluding ATRAC3 132 kbps)

Operating temperature

5˚C to 35˚C (67˚F to 95˚F)

Power source

• Built-in rechargeable lithium-ion battery

• USB power (from a computer through the USB A
plug)

US Model

Canadian Model

NW-E305/E307

AEP Model

NW-E305

E Model

Chinese Model

Tourist Model

NW-E305/E307

Battery life (continuous
playback)*

ATRAC3 format: Approximately 50 hours
(Playback at 132 kbps)
ATRAC3plus format: Approximately 45 hours
(Playback at 48 kbps)
MP3 format: Approximately 40 hours
(Playback at 128 kbps)
FM radio reception :

* This is when the power save setting is normal.

The battery duration will vary depending on
temperature and usage.

Dimension

68.2 × 24.1 × 39.0 mm (2 3/

(w/h/d, projecting parts not included)

Mass

Approx. 45 g (1.6 oz)

Supplied accessories

Headphones (1)
USB connection support cable (1)
Extension headphone cord (Asian model only) (1)
Neck strap (China model only) (1)
CD-ROM for SonicStage software, and the
Operating Instruction PDF files for Network
Walkman and SonicStage (1)
Quick Start Guide (1)

Design and specifications are subject to
change without notice.

Approximately 22 hours

31

9

×

/

× 1

/

4

inches)

32

16

9-879-876-06

2007D16-1
© 2007.04

PORTABLE IC AUDIO PLAYER

Sony Corporation

Connect Business Division
Published by Sony Techno Create Corporation

NW-E305/E307

TABLE OF CONTENTS

1. GENERAL ................................................................... 4

2. DISASSEMBLY

2-1. Disassembly Flow ........................................................... 5

2-2. Window, Case (Upper), USB Lid .................................... 6

2-3. Case (Lower) ................................................................... 6

2-4. MAIN Board.................................................................... 7

2-5. HEADPHONE Board...................................................... 8

2-6. SWITCH FLEXIBLE Board,

Organic EL Indicator Module ......................................... 8

2-7. Lithium Battery ............................................................... 9

2-8. Release Plate.................................................................... 9

2-9. Spring (Lock) And Lock Spring (Out) ............................ 10

2-10. USB Guide Assy.............................................................. 11

2-11. Spring (Arm A) And Spring (Arm B).............................. 12

2-12. Chassis Assy .................................................................... 12

2-13. USB Board ...................................................................... 13

3. TEST MODE ............................................................... 14

4. DIAGRAMS

4-1. Block Diagram ................................................................ 16

4-2. Printed Wiring Board – MAIN Board (Side A) –........... 17

4-3. Printed Wiring Board – MAIN Board (Side B) –........... 18

4-4. Schematic Diagram – MAIN Board (1/4) – ................... 19

4-5. Schematic Diagram – MAIN Board (2/4) – ................... 20

4-6. Schematic Diagram – MAIN Board (3/4), USB Board,

HEADPHONE Board –................................................... 21

4-7. Schematic Diagram – MAIN Board (4/4) – ................... 22

4-8. Printed Wiring Boards – HEADPHONE Board,

USB Board – ................................................................... 23

5. EXPLODED VIEWS

5-1. Overall Section-1............................................................. 31

5-2. Overall Section-2............................................................. 32

5-3. Chassis Section................................................................ 33

6. ELECTRICAL PARTS LIST .................................. 34

Flexible Circuit Board Repairing

• Keep the temperature of the 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.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Microsoft, Windows and Windows Media are trademarks or
registered trademarks of Microsoft Corporation in the United States
and/or other countries.
US and foreign patents licensed from Dolby Laboratories.
All other trademarks and registered trademarks are trademarks or
registered trademarks of their respective holders.

Charging the Battery

• Charge the battery in an ambient temperature of between 5 to
35 °C (67 to 95 °F)

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead­free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

CAUTION

Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.

2

NW-E305/E307

Flexible
wire

Flexible
guard

1.3 ± 0.1

1.3 ± 0.1

Ver. 1.3

SERVICING NOTE

A model both old and new exists in NW-E305/E307. For the old
model, it is exchanged for the whole of main body . Moreover, please
refer to this manual (9-879-876-0[]) about accessories.
Please refer to this manual for the new model.

How to distinguish

1. The most remarkable difference between the new model and
the old model is near button (DIRECTION JOG) as showing
in the photograph below.

Old Model New Model

2. It is possible to confirm also with serial No. for the new model
and the old model and so refer to the table below.

The position of a serial No.

Serial Number

Serial No. for NW-E305/E307

Serial No.

Model Name Old Model New Model

NW-E305 5000001-5017490 5017452-5017571

5017491-5026000 5026001-5029625
5030126-5030625 5030626-5047505
5047506-5053460 5053461-5053505
5053506-5055440 Since 5055441

NW-E307 5000751-5001720 5001721-5001750

5001751-5003480 5003481-5006000
5006001-5006700 Since 5006701

3. The position that USB FLEXIBLE WIRE is set in USB
FLEXIBLE GUARD is different in the new model and the
old model. As for the ne w model, it is out of the hole match of
USB FLEXIBLE GUARD by 1 mm to the right by the figure
below.

Color Variation

Show the color variation for NW-E305/E307.

Model WHITE BLUE PINK BLACK

NW-E305 US aa——

Canadian aaaa
AEP — — — a
Korean aaaa
HongKong aaaa
Taiwan aa——
Mexican aaaa
Tourist a — a —
Chinese aaaa

NW-E307 US a — aa

Canadian aaaa
Korean aaaa
HongKong aaaa
Mexican aaaa
Tourist aa——
Chinese aaaa

3

NW-E305/E307

SECTION 1

GENERAL

This section is extracted
from instruction manual.

Locating controls

1
2
3

4

1 DISP/FM button

/MENU button

2

3 Display

For details on the display and icons,
refer to follwing fig.

4 REP/SOUND button

5 5 Direction JOG

6 Slide Cover

Display

5

6

7
8

Track1

3145

1 Play status indicator

Displays current playback mode (N:
playback, x: stop).

Text/graphic information display

2

Displays a track/artist name, time,
,Message and menu.
To switch display mode:
Press the DISP/FM button.
Switch the display to Power Save mode
when you do not operate the unit for a
while.

3 Repeat mode indicator

Displays the current repeat mode icon.

Rear sideFront side

9
q;

7 Reset button

8 USB A plug

9 Strap hole

Put on a strap as shown below.

0 Headphone jack

2

4 Displays

and

5 Remaining battery indicator

Displays the remaining battery power.

z Tip

For information on the FM tuner display, see “FM
Tuner” .

: artist, : album, : group

: track.

Locking the
controls (HOLD)

HOLD position

Set the Slide Cover to the
“HOLD” position.

Adjusting the
current time
setting
(Date-Time)

You can set the current time and display it
while the audio player is played or in stop
mode.

/MENU

button

1

Press and hold the /MENU
button until the following menu
screen appears.

Search

2

Press U u of the 5 Direction JOG
to select “Date-Time” and press
i (VOL) to confirm.

The year digit appears in [ ].

y[05]m:01 d:01

3

Press U u of the 5 Direction JOG
to adjust the “year” setting and
press i (VOL) to confirm.

The month digit appears in [ ].

y:05 m[01]d:01

5 Direction JOG

To release the HOLD function

Slide the Slide Cover in the direction of the arrow.

4

As you did in step 3, adjust the
“month” and “date”, and press
i (VOL) of the 5 Direction JOG to
confirm.

The time setting screen appears and the
hour appears in [ ].

[00]: 00 am

5

Press U u of the 5 Direction JOG
to adjust the “hour” and press
i (VOL) to confirm.

The minute appears in [ ].

10 :[00] am

6

Press U u of the 5 Direction JOG
to adjust the “minute” and press
i (VOL) to confirm.

7

Press and hold the /MENU
button until the screen changes.

To cancel operating the menu screen

Press and hold the /MENU button until the
screen changes.

To display the current time

Press the DISP/FM button repeatedly until the
“Clock” appears.
Note, however, when the “Clock” is set to “OFF”
in the “Display Screen” menu, you cannot display
the current time by the procedure above.

z Tip

You can select the date format from among
“yy/mm/dd”, “dd/mm/yy” and “mm/dd/yy”.
Furthermore, you can select either 12 hours display
or 24 hours display. See “Setting the date format
(Date Disp Type)” , or “Setting the time format
(Time Disp Type)” .

Notes

• You cannot change display mode while using the
FM tuner.

• If the unit is not used for a long time, your
settings for date and time may need to be reset.

• If the current time is not set, the display for the
date and time will show “--”.

4

2-1. DISASSEMBLY FLOW

Note: These models exists both exchanged for the whole of

main body and usual repair.
Please refer to “SERVICING NOTE (page 3)” for
details.

•This set can be disassembled in the order shown below.

SET

2-2. WINDO W,

CASE (UPPER), USB LID

(Page 6)

2-3. CASE (LOWER)

(Page 6)

SECTION 2

DISASSEMBLY

NW-E305/E307

Ver. 1.3

2-4. MAIN BOARD

(Page 7)

2-7. LITHIUM BATTERY

(Page 9)

2-11. SPRING (ARM A) AND

SPRING (ARM B)

(Page 12)

2-12. CHASSIS ASSY

(Page 12)

2-13. USB BOARD

(Page 13)

2-5. HEADPHONE BOARD

(Page 8)

2-9. SPRING (LOCK) AND

LOCK SPRING (OUT)

2-6. SWITCH FLEXIBLE BOARD,

ORGANIC EL INDICATOR MODULE

(Page 8)

(Page 10)

2-8. RELEASE PLATE

(Page 9)

2-10. USB GUIDE ASSY

(Page 11)

5

NW-E305/E307

Ver. 1.2

Note: Follow the disassembly procedure in the numerical order given.

2-2. WINDOW, CASE (UPPER), USB LID

6

four claws

case (upper)

7

case (upper)

5

screw

(M1.4

×

1.4

8

USB lid

)

2-3. CASE (LOWER)

1

two tapping screws

(M1.4

×

3

)

2

click plate

3

tapping screw

(M1.4

4

button (DISP/FM)

3

button menu

(control)

1

Peel off the window.

×

3

)

(control)

2

button sound

(control)

case (lower)

4

screw

5

screw

(M1.4

×

1.4

6

)

(M1.4

case (lower)

×

2.5

)

6

2-4. MAIN BOARD

2

sheet (TU2), sheet (BATT2)

4

sheet (BATT2)

3

connector

(CN801)

5

connector

(CN

501

NW-E305/E307

Ver. 1.2

6

)

unweaved cloth tape

7

connector

(CN400)

8

Peel off the adhesive part.

9

(CN701)

connector

1

Remove soldering point.

MAIN board

black
yellow
gray
red

q;

(CN

connector

301

)

qa

two screws

(M1.4

×

1.6

)

qd

MAIN board

qs

Peel off the spacer (battery).

HEADPHONE board

CN

CN

301

351

7

NW-E305/E307

)

Ver. 1.2

2-5. HEADPHONE BOARD

3

Remove soldering points.

2

connector (CN501)

4

HEADPHONE board

1

ornament (jack

2-6. SWITCH FLEXIBLE BOARD, ORGANIC EL INDICATOR MODULE

6

organic EL indicator module,
bracket (SW), SWITCH
FLEXIBLE board

5

ornament (5DIR)

1

connnector

(CN701)

2

connnector

(CN801)

3

screw

(M1.4

×

2.5

)

4

button (5DIR)

8

sheet (oel)

7

SWITCH FLEXIBLE board

9

spacer (oel)

q;

organic EL indicator module

8

2-7. LITHIUM BATTERY

1

Peel off the sheet (battery).

NW-E305/E307

2

Remove the lithium battery

in the direction of the arrow.

2-8. RELEASE PLATE

A

1

Turn over the lock plate (out)

in the direction of the arrow

A

2

dowel

B

.

3

Remove the release plate

in the direction of the arrow

B

.

9

NW-E305/E307

2-9. SPRING (LOCK) AND LOCK SPRING (OUT)

1

Peel off the USB flexible board.

2

two claws

3

FP guard

5

lock spring (out)

4

spring (lock)

10

2-10. USB GUIDE ASSY

s

1

Peel off the USB flexible board.

NW-E305/E307

2

(M1.4

4

Remove the USB guide assy

in the direction of the arrow

two screws

×

1.6

A

.

A

)

3

two claw

11

NW-E305/E307

)

2-11. SPRING (ARM A) AND SPRING (ARM B)

2

spring (arm b)

1

spring (arm a

2-12. CHASSIS ASSY

2

spring (arm b)

USB section

spring (arm a)

3

sheet (battery)

1

claw

12

5

chassis assy

4

sheet (chassis)

2-13. USB BOARD

1

claw

2

connector

(CN602)

8

Remove soldering points.

q;

USB connector

9

NW-E305/E307

USB board

4

USB plug cover

3

claw

5

USB cover (outer) assy

7

USB board,

USB connector

6

USB cover (inner) assy

13

NW-E305/E307

SECTION 3

TEST MODE

STANDING PROCEDURE

Procedure 1: In HOLD state, while pushing Nx button and

/ MENU button, push [REST].
When the test mode is set, the LCD display appears
as shown below.

512M 1.00.01 G14

The place of destination
FW version
NAND FLASH RAM capacity

Procedure 2: After starting up test mode, the following contents

can be checked.

TEST MODE

BUTTON NAME DESCRIPTION

/MENU Push the /MENU button, so displayed Fmax/

Fmin for FM broadcast received frequency.
A display change as shown below whenever the
/MENU button is pushed.
FM[P__}76.0MHz

FM[P__}TV 3CH
DISP/FM Displayed “TUNER OFF”.
u (AMS+) Displayed charge mode (100mA/500mA).

A display change as shown below whenever the

u (AMS+) button is pushed.

Charge Mode 500m

Charge Mode 100m
U (AMS–) Display Charge ON/OFF.

Change a display as shown below whenever the

U (AMS–) button is pushed.

Charge On

Charge Off
HOLD Change a display as shown below whenev er in the

state of HOLD ON.

• LCD lights up to a checkered pattern.

• All LCD lights on.

In the state of HOLD OFF.

• Displayed “HOLD KEY OFF”
VOL i Displayed “Beep: ON”
VOL I Displayed “Beep: OFF”
REP/SOUND Push the REP/SOUND button, so “Initialized” is

displayed.
Initialized. (Turn to the factory preset state, time,
volume setting and so on.) The music data and files
in the memory are not changed.

Nx “Check all key” is displayed, so the key test mode

is activated, when the Nx button is pressed.
Push all button around.
Escape a test mode if the Nx button is pressed
at last.

14