Sony NW-E10, NW-E7 Service Manual

NW-E7/E10

SERVICE MANUAL

Ver 1.0 2001.10

Photo : NW-E7

SPECIFICATIONS

Recording time

NW-E7: Approx. 60 min. (132kbps)

Approx. 80 min. (105kbps) Approx. 120 min. (66kbps)

NW-E10: Approx. 120min. (132kbps)

Approx. 160 min. (105kbps) Approx. 240 min. (66kbps)

Sampling frequency response

44.1kHz

Recording format

ATRAC3 MP3; Bit rate*: 32–256 kbps

Sampling rate: 32/44.1/48 kHz

* Variable bit rate files are not supported. Bit rate

higher than 128 kbps is not guaranteed when you select the sampling rate 32 or 48 kHz.

Frequency response

20 to 20,000 Hz (single signal measurement)

Output

Earphone: stereo mini-jack

Signal-to-noise ratio (S/N)

More than 80dB (excluding 66 kbps)

Dynamic range

More than 85dB (excluding 66 kbps)

Operating temperature

5°C to 35°C (-41°F to 95°F)

AEP Model

UK Model

NW-E7/E10

E Model

NW-E7

Power source

• DC IN 1.2V (internal nickel metal hydride battery)

• DC IN 4.5V (supplied AC power adaptor)

Battery life

Approx. 11 hours

Dimensions (approx.)

27.8 × 92.4 × 13.3mm (1 1/8 × 3 3/4 × 17/32 inches) (w/h/d, projecting parts not included)

30.9 × 92.4 × 14.7mm (1 1/4 × 3 3/4 × 19/32 inches) (including projecting parts)

Mass (approx.)

55g (1.9 oz) (battery included)

Memory capacity

NW-E7: 64MB (including the system software) NW-E10: 128MB (including the system software)

Supplied accessories

USB cradle (1) Earphones (1) USB cable (1) AC power adaptor (for the supplied USB cradle) (1) Carrying pouch (1) CD-ROM (OpenMG Jukebox installation disc) (1) NW-E7/E10 Operating Instructions (1) OpenMG Jukebox Operating Instructions (1)

Design and specifications are subject to change without notice.

9-873-343-01

2001J0200-1

NETWORK WALKMAN

Sony Corporation

Personal Audio Company

Service Manual Production Group

NW-E7/E10

TABLE OF CONTENTS

Specifications ............................................................................... 1

1. SERVICING NOTE .......................................................... 2

2. GENERAL .......................................................................... 3

3. DISASSEMBLY

3-1. Case ................................................................................. 5

3-2. Battery, Nickel Hydrogen ............................................... 5

3-3. Main Board ..................................................................... 6

4. DIAGRAMS

4-1. Block Diagrams .............................................................. 7

4-2. Printed Wiring Boards (Main Section) ........................... 8

4-3. Schematic Diagram (Main Section (1/2)) ....................... 9

4-4. Schematic Diagram (Main Section (2/2)) ..................... 10

5. EXPLODED VIEW

5-1. Main Section ................................................................. 13

5-2. Case Section .................................................................. 14

6. ELECTRICAL PARTS LIST ....................................... 15

SECTION 1

SERVICING NOTE

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead-free 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 viscous (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.

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.

• Replacement of TMS320DA150GGU120 (IC601) used in the set requires a special tool.

USABLE FORMAT

Use ISO9660 Level 1 format.

LOCATION AND FUNCTION OF CONTROLS

(front)

SECTION 2

GENERAL

NW-E7/E10

This section is extracted from instruction manual.

(rear)

1 i (Headphones/earphones) jack 2 Display 3 PLAY MODE button 4 Jog lever 5 VOLUME+/– button 6 MEGA BASS/AVLS button 7 Access lamp 8 HOLD switch 9 Strap hole for attaching the strap 0 Reset button qa Connection part for the USB cradle

NW-E7/E10

Basic Operations

Transferring songs from the computer to Network Walkman (Check-out)

1 Install the supplied OpenMG Jukebox software and import digital audio files to

OpenMG Jukebox.

For details, refer to the OpenMG Jukebox operating instructions.

Note

Before connecting the player to your computer for the first time, be sure to install "OpenMG Jukebox" software and NW-E7/E10 driver from the supplied CD-ROM to your computer. If you have already installed "OpenMG Jukebox" software, you also need to install NW-E7/E10 driver before connecting the player to your computer.

2 Connect Network Walkman to your computer.

1Attach your Network Walkman to the USB cradle.

Note

Be sure to attach the player to the arrow direction as illustrated below.

3 Connect Network Walkman to your

computer. Connect the small connector of the supplied USB cable into the USB jack on the USB cradle, then the large connector to the USB jack of your computer. “PC” appears in the display, and the access lamp flashes to confirm access to the computer.

USB cradle

USB cable (supplied)

Display

2 Connect the AC power adaptor*.

Connect the supplied AC power adaptor to an AC wall outlet first, then to the DC IN jack on the USB cradle.

* You can use the player by only connecting the

dedicated USB cable, but the battery is not be charged.

USB cradle

to DC IN

AC power adaptor (supplied)

Access lamp

to AC wall outlet

Notes

• Do not disconnect the USB cable or remove the player from the USB cradle during the access lamp is flashing. This may cause the data being transferred to be broken.

• Do not connect more than two USB devices to your computer. Normal operation will not be guaranteed.

• Use of this player with a USB hub or a USB extension cable is not guaranteed.

• A malfunction may occur depending on the USB devices connected at any one time.

• When connecting Network Walkman to your computer for the first time, the USB driver Installer window appears. Please follow the instructions in the Installer window.

• You cannot operate the player while it is connected to a computer. If you place the player on the USB cradle connected to a computer during playback, playback stops and "PC" appears on the display.

• Even if you connect the player to a computer, it is impossible to browse the contents of the built-in memory of the player using the Windows Explorer.

3 Transfer the music file to Network Walkman (Check-out).

For details on how to operate, refer to the OpenMG Jukebox Operating Instructions.

Tip

To transfer the song back to the computer (check-in), refer to the OpenMG Jukebox software instruction manual or the online help.

Note on playing back time-limited music (timeout contents)

Some music data distributed via the Internet (EMD service) have playback time restriction.

When you playback a song with playback time restriction, the timeout icon (page 11) goes on.

If you try to playback a song whose playback period is already expired, the timeout icon flashes and playback of the next song begins.

We recommended you to check-in or delete the expired song in the player to the computer using the OpenMG Jukebox software.

OpenMG Jukebox will not playback the expired song and the expired song will not be available for check-out to Network Walkman. Delete these songs as needed.

Basic Operations

Listening to music with Network Walkman

Please charge the battery before use (see page 7).

Note

When using Network Walkman, be sure to disconnect it from the computer.

1 Connect the headphones/earphones.

to i jack

2 Start playback.

1 Push the jog lever.

(rear)

2 Press the VOLUME

+/– button up or down to adjust the volume.

HOLD switch

Playback stops automatically when the music reaches the end (only when the REPEAT mode is off).

If playback does not start

The HOLD switch may be switched on. Please release it off (page 13).

To stop playback

Push the jog lever.

Tip

If you do not operate the player for 3 seconds while in stop mode, the display automatically turns off.

On other operations

Jog lever

Go to the beginning of the next track

Go to the beginning of the succeding tracks

Go to the beginning of the actual track

Go to previous tracks

Go forward

Go backward

Slide upwards

Operation of the Jog lever

Slide upwards once.

Slide upwards and hold still.

Slide downwards once.

Slide downwards and hold still.

While playback, slide up and hold still.

While playback, slide down and hold still.

Push

Slide downwards

On the display

BASS12 SHUF

VOL

1 Play/Volume indicators

While playing, the N icon and the song number appear. While changing the volume, VOL and the volume level appear.

2 Play back mode indication (page 13)

The selected repeat mode is displayed.

3 MEGA BASS indication (page 12)

The indication lights up while the MEGA BASS function is activated.

4 AVLS indication (page 12)

The indication lights up while the AVLS function is activated.

5 Battery remain indication (page 7)

The remaining battery power is displayed.

6 Timeout icon

Depending on the time-limited rights associated with certain music content, the playback period may expire. (The icon appears when you play back a timeout content. The icon flashes if the playback period has expired.)

Basic Operations

SECTION 3

DISASSEMBLY

The equipment can be removed using the following procedure.

CaseSet Battery, nickel hydrogen Main board

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

3-1. CASE

NW-E7/E10

5 Claws

Protector

Case

Control ornamental plate

3 Key top

1 Screw

• KNOB (HOLD) REMOVAL

Window (LCD)

2 Screw

Case

Arm (hold)

Knob (hold)

NW-E7/E10

3-2. BATTERY, NICKEL HYDROGEN

Lid case ASSY

1 Screw

3-3. MAIN BOARD

Battery, nickel hydrogen

5 Screw

Main board

6 Claws

CN902

Switch flexible board

6 Claw

2 Claw

4 Peel off from frame

Frame

+ 14 hidden pages