Sony NWE-8-P Service manual

NW-E8P

SERVICE MANUAL

Ver 1.0 2001.10

SPECIFICATIONS

Recording time

Approx. 60 min. (132kbps) Approx. 80 min. (105kbps) Approx. 120 min. (66kbps)

Sampling frequency response

44.1kHz

Recording format

ATRAC3

Frequency response

20 to 20,000 Hz (single signal measurement)

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)

Power source

LR03 (Size AAA) alkaline battery

AEP Model

E Model

Battery life

Approx. 7 hours

Mass (approx.)

90g (3.2 oz) (battery included)

Memory capacity

64MB (including the system software: 60.6MB available)

Supplied accessories

LR03 (Size AAA) alkaline battery (1) Attachments (1 for left, 1 for right) Dedicated USB cable (1) Carrying pouch (1) CD-ROM (OpenMG Jukebox installation disc) (1) NW-E8P Operating Instructions (1) OpenMG Jukebox Operating Instructions (1)

Design and specifications are subject to change without notice.

9-873-342-01

NETWORK WALKMAN

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

NW-E8P

TABLE OF CONTENTS

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

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

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

3. DISASSEMBLY

3-1. Driver ASSY (SP2), Arm Lid (R), Holder Lid (R) ......... 6

3-2. Main Board, Power Board, LCD Unit ............................6

3-3. Driver ASSY (SP1), Arm Lid (L), Holder Lid (L) ......... 7

4. TEST MODE...................................................................... 8

5. DIAGRAMS

5-1. Block Diagrams ............................................................10

5-2. Printed Wiring Boards (Main Section) ......................... 11

5-3. Schematic Diagram (Main Section (1/2)) ..................... 12

5-4. Schematic Diagram (Main Section (2/2)) ..................... 13

5-5. Printed Wiring Boards (Power Section)........................ 14

5-6. Schematic Diagram (Power Section) ............................ 15

6. EXPLODED VIEW

6-1. L-CH Section ................................................................ 17

6-2. R-CH Section ................................................................ 18

7. ELECTRICAL PARTS LIST ....................................... 19

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 CXD9644GG (IC710) used in the set requires a special tool.

USABLE FORMAT

Use ISO9660 Level 1 format.

SECTION 2

GENERAL

LOCATION AND FUNCTION OF CONTROLS

(front of the right player) Display

NW-E8P

This section is extracted from instruction manual.

(rear of the left player)

34 5

1 AVLS indication 2 MEGA BASS indication 3 Battery remain indication 4 Play mode indication 5 T ext/graphic information display

1 DISPLAY button 2 VOLUME+/– button 3 HOLD switch 4 Jog lever 5 Dedicated USB jack 6 Display 7 MEGA BASS/AVLS button 8 P.MODE button 9 Ear pad 0 Battery compartment

NW-E8P

Basic Operations

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

In order to check out digital audio files from your computer, first you must install the supplied OpenMG Jukebox software and then import digital audio files to OpenMG Jukebox. For details, refer to the OpenMG Jukebox operating Instructions.

Connect Network Walkman to your computer

Connect the narrow connector of the supplied dedicated USB cable into the dedicated USB jack on Network Walkman, then the wide connector to the USB jack of your computer. “CONNECT” appears in the display.

to the dedicated USB jack

Dedicated USB cable (supplied)

Notes

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

• If you use this player with a USB hub or a USB extension cable normal operation is not guaranteed.

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

• Be sure to insert a fresh Alkaline battery into the unit. If the battery is not inserted, or battery power is exhausted, the unit will not be identified by the computer.

• 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.

• Connect Network Walkman only as necessary. Disconnect the dedicated USB cable when not needed.

to the USB jack

Listening to music with Network Walkman

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

Note

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

1 Putting the player on your ears

The attaching part of this player would be open (be apart) flexibly.

1 Pinch the center of

the player with your thumb and middle finger, and then open the attaching part with your forefinger.

2 Hook the cured part

around the back of your ear and twist it to the earlobe direction to sit it on your ear. If your hair hangs over your ear, please push back your hair before attaching it.

Notes

• Please remove earrings.

• If you wear the glasses, remove your glasses before putting on this player and put them on again.

• Be sure not to open the attaching part more than 2 cm. Otherwise, this player may deform and

2cm

might not sit on your ears comfortably. Note that if you press the player to opposite side, it also may deform.

Hook the edge of the attaching part to the back of

your ear and twist it.

Basic Operations

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.

Listening to music with Network Walkman (continued)

Release the HOLD function

If the HOLD switch is in the arrow direction ( the yellow mark is visible), slide it to the opposite direction to release the HOLD function.

Start playback

2 VOLUME

+/– button to adjust the volume.

HOLD switch

1 Press the Jog lever

Bx. Playback starts. When playback ends, the playback automatically stops (in the case the player is set to REPEAT OFF).

If playback does not start

Make sure the HOLD function is released.

To stop playback

Press the Jog lever Bx.

Tip

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

3 Adjust the position of

the player to fix it comfortably.

If you cannot attach the player to your ear comfortably

Confirm the position of the player with a mirror. In the correct position, your ears should appear as illustrated. if your ears are small and not visible as shown, use the supplied attachments (see page 15).

To remove the player from your ears

Twist the player to the opposite direction when attaching it, and remove it.

On other operations

Jog lever

FF direction

REW direction

Go to the beginning of the next track

Go to the beginning of succeeding

tracks

Go to the beginning of the current track

Go to previous

tracks

Go forward

Go backward

Operation of the Jog lever

Press in the FF direction once.

Press in the FF direction repeatedly.

Press in the REW direction once.

Press in the REW direction repeatedly.

During playback, press in the FF direction and hold .

During playback, press in the REW direction and hold.

While in stop mode, press the Jog lever in the FF direction and hold, you can go to the beginning of the next track and succeeding tracks continuously. While in stop mode press the Jog lever in the REW direction and hold, you can go to the beginning of the current track and previous tracks continuously.

If you press and hold in the FF or REW direction for more than 5 seconds, the search speed increases.

continued

Basic Operations

continued

NW-E8P

Listening to music with Network Walkman (continued)

On the display

1 AVLS indication (page 13)

The indication lights up while the AVLS function is activated.

2 MEGA BASS indication (page 13)

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

3 Battery remain indication (page 7)

The remaining battery power is displayed.

4 Play mode indication (page 14)

The selected play mode is displayed.

Play status/Track number display

The following information is displayed according to the display mode.

Play status Play status

Play status During playback:

displayed alternately. In stop mode: While locating tracks: > or

. is displayed. While searching a point in a track:

M or m is displayed. When you play back songs for more than 15 seconds, a wave pattern is displayed.

or is

is displayed.

Track number

Volume indication

(Displayed numerically. Max. volume is

31)

Changing the display mode

Press the DISPLAY button while the wave is displayed during playback and the track number is displayed.

About the backlight

If you perform the following operation, the backlight lights up for a few seconds.

• Press the buttons (VOLUME+/--, DISPLAY, P.MODE, MEGABASS/AVLS)

• Operate the Jog lever

Note

In a bright place, the backlight may not be apparent.

DISPLAY button

Track number

Attaching the attachments

If your ears are small and you cannot attach the player correctly, use the supplied attachments.

Example for left ear

2 Turn the attachment to click into place.

To remove the attachment

1 Pull the edge of the attachment in

For left ear For right ear

Engage the pin in the slot as shown, and insert the attachment.

the direction of the arrow.

3 Press the point shown by the arrow to

secure it.

2 Lift its edge and turn it in the

direction of the arrow to remove it.

Advanced Operations

NW-E8P

SECTION 3

DISASSEMBLY

The equipment can be removed using the following procedure.

<R-CH section>

Set

<L-CH section>

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

<R-CH section> 3-1. DRIVER ASSY (SP2), ARM LID (R), HOLDER LID (R)

Driver ASSY (SP2), Arm lid (R), Holder lid (R) Driver ASSY (SP1), Arm lid (L), Holder lid (L)

Holder (R) ASSY

LCD unit

Main board, Power board, LCD unit

• Installation of holder lid (R) and arm lid (R)

Claw

Red

Remove solder

(2 places)

Black

Screw

B1.7x5

<R-CH section> 3-2. MAIN BOARD, POWER BOARD, LCD UNIT

Arm lid (R)

Front plate

Holder lid (R) (rear side)

Holder lid (R)

Red

Black

Turn to clockwise

to release lock.

Arm lid (R) (rear side)

Screw B1.7x5

Screws

B1.7x5

• Connection of driver ASSY Glue

Red

Black

Marking (red)

Driver ASSY

Driver ASSY (SP2)

Ear pad

Holder (R) ASSY

Knob (HOLD)

Cord (4 core)

LCD unit

Remove solder

(4 places)

Red/clear (rear side)

Green/clear

Red

CN704

Green

LCD flexible board

(Power board: CN705)

CN702

HOLD switch (S704)

Power board

Caution during assembly Align HOLD switch (S704) with the position of knob (HOLD).

Main board

<L-CH section>

3-3. DRIVER ASSY (SP1), ARM LID (L), HOLDER LID (L)

NW-E8P

MDD flexible board

Remove solder

(2 places)

Note: When soldering, paying attention as holder (L) doesn’t transform it by a heat.

• Installation of holder lid (L) and arm lid (L)

Lid (L), arm (rear side)

Holder (L) ASSY

Claw

Holder lid (L)

Red

Black

Screws B1.7x5

• Wiring of cord (4 core) Red

Green

Arm lid (L)

Front plate

Green/clear

Open the battery lid.

Cord (4 core)

Red/clear

Holder lid (L)

Black

Red

Turn to clockwise

to release lock.

Screw

B1.7x5

Screws

B1.7x5

• Connection of driver ASS Glue

Black

Driver ASSY

Driver ASSY (SP1)

Red

Marking (red)

Ear pad

NW-E8P

)

SECTION 4

TEST MODE

Setting the Test Mode

To enter the test mode, two methods are available :

1. Entering method with key input. Turn the HOLD switch to ON. While holding down the Bx key, press the following keys in the following order : VOLUME + t VOLUME – t VOLUME – t VOLUME + t VOLUME – t MEGA BASS t MEGA BASS t DISPLAY Note : Push each key for less than 3 seconds.

2. Entering method by shorting the test point. Solder brige the test point SL701 (TEST) on the main board and turn on the power.

MAIN BOARD (SIDE B)

TP3

Test mode Short : Test mode

( )

Open : Normal mode

P701

D781

R764

TP701

R705

R769

R703

R767

R783

TP702

TP703

(TEST)

C704

IC820

C703

JC722

X701

R77R7

CN701

USB

CONNECTOR

1-681-242-

(13)

Releasing the TEST mode

1. When test mode was entered with key input, turn off the power supply.

2. When test mode was entered by shorting the test point, turn off the power supply and open the solder brige of SL701 (TEST) on the main board.

Connection

regulated

Set

Battery terminal

CN701

(USB Connector)

DC power supply

Connecting cable supplied with the set

USB Connector

(1-784-009-11 or 1-779-676-11

regulated

DC power supply

Configuration of Test Mode

The test mode has the configuration given below.

Bx : Play/stop key (+) : VOLUME + key (–) : VOLUME – key

LCD

Check

(+)

(–)

Flash memory

bad block

check

(+)

(–)

Destination

setting

(+)

(–)

Contrast

adjustment

(+)

Ver. /

destination

display

All display

lit

All display

off

Supply 0.9V DC to battery terminal and press (–) key.

(–)

Low voltage

check

Supply 1.24V DC to battery terminal and 7V DC to USB connector and press (+) key.

High DC detection

(–)

check

Supply 1.24V DC to battery terminal and 4V DC to USB connector and press (+) key.

Low DC

detection

(–)

check

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