Sony Nw E50 Users Manual E50/E70/E90
NW-E50 to the manual b2f640b2-5aa3-4489-8294-81603ab7b6b4
2015-01-23
: Sony Sony-Nw-E50-Users-Manual-295106 sony-nw-e50-users-manual-295106 sony pdf
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Page Count: 88
- GB
- Overview
- Other features
- Step 1: Checking the package contents
- Step 2: Inserting the battery
- Locating controls
- Basic Operations
- Advanced Operations
- Repeat mode
- Changing the display mode
- Adjusting treble and bass (Digital sound preset)
- Locking the controls (HOLD)
- Storing non-audio data
- Adjusting the settings of your Network Walkman
- Adjusting the current time setting (DATETIME)
- Adjusting the current time setting (DATETIME)
- Limiting the volume (AVLS)
- Setting the volume using the preset volume function
- Turning off the beep sound (BEEP)
- Changing the backlight setting
- Other functions
- Regrouping songs (REGROUP)
- Formatting memory (FORMAT)
- Other Information
- MP3 file manager software operation
- Index
- CS

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
NW-E50/E70/E90
Operating Instructions
使用说明书
3-267-071-13(1)
© 2004 Sony Corporation
Portable IC Audio Player
Network Walkman
网络随身听网络随身听
网络随身听网络随身听
网络随身听
“WALKMAN” is a registered trademark of
Sony Corporation to represent Headphone
Stereo products.
is a trademark of Sony
Corporation.
GB
CS
在使用产品前,请仔细阅读本使用说明书

2-GB
NW-E50/E70 GB/CS 3-267-071-12(1)
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
Do not install the appliance in a confined
space, such as a bookcase or built-in cabinet.
To prevent fire, do not cover the ventilation of the
apparatus with news papers, table cloths, curtains,
etc. And don’t place lighted candles on the
apparatus.
To prevent fire or shock hazard, do not place
objects filled with liquids, such as vases, on the
apparatus.
Note on installation
If you use the unit at a place subject to static or electrical
noise, the track’s transferring information may be
corrupted. This would prevent successful transferring
authorization on your computer.
This manual explains how to operate your
Network Walkman and how to use the MP3
file manager (pre-installed software). For
details on how to use the SonicStage
(supplied software), refer to the SonicStage
operating instructions.
Notice for users
On the supplied software
• Copyright laws prohibit reproducing the software or the
manual accompanying it in whole or in part, or renting
the software without the permission of the copyright
holder.
• In no event will SONY be liable for any financial
damage, or loss of profits, including claims made by
third parties, arising out of the use of the software
supplied with this player.
• In the event a problem occurs with this software as a
result of defective manufacturing, SONY will replace
it.
However, SONY bears no other responsibility.
• The software provided with this player cannot be used
with equipment other than that which is so designated.
• Please note that, due to continued efforts to improve
quality, the software specifications may be changed
without notice.
• Operation of this player with software other than that
provided is not covered by the warranty.
• Depending on the type of the text and characters, the
text shown on SonicStage and MP3 File Manager may
not be displayed properly on device. This is due to:
–The capability of the connected player.
–The player is not functioning normally.
–The ID3 TAG information for the track is
written in the language or the character that is
not supported by the player.
Program ©2001, 2002, 2003, 2004 Sony Corporation
Documentation ©2004 Sony Corporation
OpenMG and its logo are trademarks of Sony
Corporation.
SonicStage and SonicStage logo are trademarks or
registered trademarks of Sony Corporation.
ATRAC, ATRAC3, ATRAC3plus and their logos are
trademarks of Sony Corporation.
Microsoft, Windows and Windows Media are trademarks
or registered trademarks of Microsoft Corporation in the
United States and/or other countries.
All other trademarks and registered trademarks are
trademarks or registered trademarks of their respective
holders.
In this manual, TM and ® marks are not specified.
企标编号 (NW-E50/E70):Q/YXPD123-2004
企标编号 (NW-E90):Q/YXPD164-2004

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
3-GB
Table of Contents
GB
Overview ............................................ 4
What you can do with your
Network Walkman .................... 4
Other features ................................. 5
Step 1: Checking the package
contents ........................................ 6
Step 2: Inserting the battery................ 7
Locating controls ................................ 8
Front side ........................................ 8
Rear side ......................................... 8
Display ............................................ 9
Basic Operations
Transferring audio files from the
computer to your Network
Walkman .................................... 10
Note on playing songs with a limited
playing period
(Timeout contents).................. 11
Note on playing songs with a limited
playing count .......................... 11
Listening to music with your Network
Walkman .................................... 12
What is the Group function? ......... 13
On other operations ...................... 13
Advanced Operations
Repeat mode ..................................... 14
Selecting the repeat mode ............. 14
Playing the tracks repeatedly
(Track Repeat) ........................ 15
Playing a specified section
repeatedly (A-B Repeat) ......... 15
Playing specified sentences
repeatedly
(Sentence Repeat) ................... 16
Setting the repeat counts ............... 17
Changing the display mode .............. 17
Selecting the group display
mode ....................................... 18
Adjusting treble and bass
(Digital sound preset) ................ 19
Selecting the Sound quality .......... 19
Adjusting the sound quality .......... 19
Locking the controls (HOLD) .......... 20
Storing non-audio data ..................... 21
Adjusting the settings of your
Network Walkman
Adjusting the time setting of your
Network Walkman to a computer’s
built-in clock .............................. 22
Adjusting the current time setting
(DATE-TIME) ............................ 23
Limiting the volume (AVLS) ............ 24
Setting the volume using the preset
volume function ......................... 24
Setting a volume level of the
preset mode ............................ 24
Switching to the manual mode ..... 25
Turning off the beep sound
(BEEP) ....................................... 26
Changing the backlight setting ......... 26
Other functions
Regrouping songs (REGROUP) ....... 27
Formatting memory (FORMAT) ...... 28
Other Information
Precautions ....................................... 29
Troubleshooting ................................ 30
To reset the player ......................... 30
What happened? ........................... 30
Messages ....................................... 33
Specifications ................................... 34
Glossary ............................................ 35
Menu list ........................................... 36
MP3 file manager software
operation
What you can do with the MP3 file
manager ...................................... 37
Transferring MP3 audio files from the
computer to your Network
Walkman .................................... 37
Display of MP3 file manager ........... 39
Erasing audio file.............................. 40
Ordering audio file ........................... 40
Index ....................................... 41

4-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Overview
1Store digital
audio files on
your computer.
2Transfer files to
your Network
Walkman.
3Enjoy music with
your Network
Walkman.
USB connection
MP3, WAV and
Windows® Media
Format Audio Files
Audio CDs
EMD (Electric Music
Distribution) Services
Download the
latest audio
files!
Store favorite
songs!
What you can do with your Network Walkman
First, you need to install the “SonicStage” software into your computer (MP3 file manager software is pre-
installed in your Network Walkman). You can easily transfer digital audio files from your computer to the
built-in flash memory and carry it anywhere to enjoy.
When you transfer MP3 format audio
files to your Network Walkman, use MP3
file manager software (pre-installed
software) to transfer and store them as
MP3 format audio files.
You can display the data stored in the built-in
flash memory using Windows Explorer when
your Network Walkman is connected to the
computer. However, an MP3 format audio file
cannot be played back if you drag or copy the
file directly on the Windows Explorer screen.
When you transfer an MP3 format audio file to
your Network Walkman, be sure to use the
MP3 file manager software (see page 37).

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
5-GB
NOTES:
•The recorded music is limited to private use only. Use of the music beyond this limit requires permission of the
copyright holders.
•Sony is not responsible for incomplete recording/downloading or damaged data due to problems of the Network
Walkman or computer.
Other features
•Compact size, light weight, skip-proof operation, high portability.
• The pre-installed MP3 file manager software enables you to transfer MP3 format audio files to your
Network Walkman and listen to them with your Network Walkman as MP3 format files.
•Continuous playback time with a battery
NW-E50/NW-E70/NW-E90: Approximately 70*1 hours
•Recording time*2
NW-E50: 128MB built-in flash memory, more than 5 hours 50 minutes.
NW-E70: 256MB built-in flash memory, more than 11 hours 40 minutes.
NW-E90: 512MB built-in flash memory, more than 23 hours 20 minutes.
• The supplied SonicStage software enables you to record songs from audio CDs to the hard disk of your
computer using the ATRAC3plus format (high sound quality, high compression).
•Sentence Repeat: Useful function for learning a foreign language.
•High-speed data transfer using the dedicated USB cable.
•Backlight LCD screen: song titles and artist names can be displayed.
• Group function: you can select songs to be played by album.
• Storage function: you can store a variety of data as well as audio files.
*1Differs according to the data format. In this case, the figure for the battery duration is when continuously playing
ATRAC3 format audio files.
*2Differs according to the bit rate when recording. In this case, the figure for the recordable time is when recording at
48kbps ATRAC3plus format.

6-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
OPEN
Serial NO.
Serial Number
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Please check the accessories in the package.
NW-E50:
•Network Walkman (1)
•Headphones (1)
NW-E70:
NW-E90
•Network Walkman (1)
•Headphones (1)
•Earbuds (Size S, L) (1)
•Dedicated USB cable (1)
Earbuds (Size S)
Earbuds (Size L)
Step 1: Checking the package contents
For the customers of NW-E70/E90
Notes
The supplied headphones are a close-up design to
create Powerful Bass Sound. Do not use
headphones while driving.
•Do not use headphones while driving, cycling, or
operating any motorized vehicle.
• It can also be potentially dangerous to play your
headphones at high volume while walking,
especially at pedestrian crossings. You should
exercise extreme caution or discontinue use in
potentially hazardous situations.
When you wear the headphones, you may hear noise,
such as the cord rubbing against your clothes. This is
not a malfunction.
•Carrying pouch (1)
•Neck strap (1)
•Extension headphone cord (1)
•CD-ROM (1)
•Operating instructions (1)
•SonicStage operating instructions (1)
About the Serial Number
The serial number provided for your device is
required for the customer registration. The number
is on the rear side of your Network Walkman.
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Record the serial number in the space provided
below. Refer to it whenever you call upon your
Sony dealer regarding this product.
Serial No. _____________________

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
7-GB
Step 2: Inserting the battery
Insert the LR03 (size AAA) alkaline battery with correct polarity. Be sure to insert it from the E side as
illustrated.
OPEN
OPEN
If the battery compartment lid is accidentally
detached, attach it as illustrated.
Battery duration
*
ATRAC3 format: Approximately 70 hours
ATRAC3plus format: Approximately 60 hours
MP3 format: Approximately 50 hours
*The battery life may be shorter due to operating
conditions and the temperature of the location.
On the remaining battery indication
The battery icon in the display changes as shown below.
If “LOW BATT” is displayed in the display, you need to
change the battery.
Notes
If you do not use the battery correctly, it may become
damaged from leakage and corrosion. For best results:
–Use the alkaline battery.
–Make sure the polarity is correct.
–Do not charge a dry cell battery.
– Remove the battery, if you do not intend to use the
player for an extended period of time.
–If you have battery leakage, replace with a new battery
after cleaning the battery compartment.
low battery change the
battery

8-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Locating controls
For details about each part, refer to the pages in parentheses.
Rear sideFront side
7Headphone jack (page 12)
8Nx button
(page 12 to 20, 22 to 28)
9Shuttle switch
(page 13 to 20, 22 to 28)
0VOLUME +/– button (page 12, 24)
qa HOLD (Locking controls) switch
(page 12, 20)
qs USB jack (page 10, 37)
qd Battery compartment (page 7)
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1
2
3
4
5
6
7
8
9
0
qz
OPEN
qs
qd
1Strap hole for attaching the strap
2REPEAT/SOUND button
(page 15 to 16, 19)
3MENU button (page 14, 17 to 20, 22 to 28)
You can switch to the Time display by
pressing the MENU button for a while.
4GROUP button (page 13, 18)
5Display (page 9, 15, 33)
For details on the display and icons, refer to
page 9.
6ACCESS lamp (page 10, 38)

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
9-GB
1
Text/graphic information display (page 14)
Displays track number, track name, current date
and time (page 17 to 23), MESSAGE (page 11,
33) and menu.
Press the MENU button to switch the display
mode. For details, refer to “Changing the
display mode” on page 17.
2Repeat mode indication (page 14)
The current repeat mode is displayed.
3AVLS indication (page 24)
The indication appears while the AVLS
function is activated.
4Digital sound preset indication
(page 19 to 20)
The current sound setting is displayed.
5Remaining battery indication (page 7)
The remaining battery power is displayed.
Display

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
10-GB
Basic Operations
Transferring audio files from the computer
to your Network Walkman
You can transfer ATRAC3, ATRAC3plus format audio files from the computer to your Network Walkman
using the installed SonicStage software. Follow the procedure below.
You can also transfer MP3 format audio files, using the MP3 file manager that is pre-installed in your
Network Walkman. For details, refer to “MP3 file manager software operation” on page 37.
1Install the SonicStage software in your computer using the supplied CD-ROM.
Follow step 1 only for the first time when you connect your Network Walkman to the computer.
For details, refer to the SonicStage operating instructions.
2Import audio files into the SonicStage software.
For details, refer to the manual “SonicStage operating instructions.”
3Connect your Network Walkman to your computer.
Connect the small connector of the dedicated USB cable into the USB jack on the Network Walkman,
then the large connector to a USB port on your computer.
“CONNECT” appears in the display.
Notes
• The ACCESS lamp blinks while your Network Walkman accesses the computer.
•Do not disconnect the USB cable when the ACCESS lamp is blinking. The data being transferred may be destroyed.
•Use of your Network Walkman with a USB hub or a USB extension cable is not guaranteed. Always connect your
Network Walkman to the computer directly using the dedicated USB cable.
• Some USB devices connected to the computer may interfere with the proper operation of your Network Walkman.
•The control buttons on your Network Walkman are all disabled while it is connected to a computer.
•You can display the data stored in the built-in flash memory using Windows Explorer when your Network Walkman is
connected to the computer.
Note
Before connecting your Network Walkman to the computer for the first time, be sure to install the
“SonicStage” software from the supplied CD-ROM in your computer. Even if the SonicStage software
is already installed, you need to install the SonicStage software supplied with this Network Walkman
before connecting your Network Walkman to the computer (update programs may be available).
OPEN
OPEN
Dedicated USB cable (supplied)
to a USB portto the USB jack
ACCESS lamp

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
11-GB
Basic Operations
4Transfer audio files to your Network Walkman.
For information on transferring audio files to the built-in flash memory, refer to the separate manual
“SonicStage operating instructions.”
z Tip
For information on transferring audio files back to the computer, refer to the manual “SonicStage operating instructions”
or online Help for the SonicStage software.
Note on playing songs with a limited playing period
(Timeout contents)
Some songs distributed via the Internet (EMD service) have a limited playing period.
If you try to play an expired song, “EXPIRED” blinks and the next song will be played after a moment.
In addition, an expired song cannot be played using the SonicStage software, or transferred to your
Network Walkman. Delete any songs as needed.
Note on playing songs with a limited playing count
Your Network Walkman does not support contents with a limited playing count.
When you try to play a song with a limited playing count, “EXPIRED” will be displayed and the song will
not be played.

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
12-GB
1 Connect the headphones.
2Start playback.
Listening to music with your Network
Walkman
Please insert the battery before use (see page 7).
Note
When using Network Walkman, be sure do disconnect it from the computer.
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1 Press the Nx button.
2 Press the
VOLUME
+/– button to adjust
the volume.
HOLD switch
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to i jack
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to i jack
Headphones
extension
cord
How to install the earbuds correctly
For the customers of NW-E70/E90
If the earbuds do not fit your ears correctly, low
bass sound may not be heard. To enjoy better
sound quality, adjust the earbuds position to sit
on your ears comfortably or push them into the
inside of your ears so that they fit your ears
snugly. At purchase, M size earbuds are
installed. If the earbuds do not fit your ears, try
one of the other supplied sizes S or L.
z Tip
If your Network Walkman is not operated for 10 seconds
while in stop mode, the display automatically turns off.
When scrolling track titles, etc., the display turns off after
scrolling is finished.
When the normal playback mode is selected,
playback stops automatically after the last song is
played.
If playback does not start
Make sure that the HOLD switch is set to off
(page 20).
To stop playback
Press the Nx button.
To adjust the volume
The volume can be set in the PRESET and MANUAL
mode (page 24 to 25).
To use the headphones extension cord

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
13-GB
Basic Operations
To
Skip to the beginning
of the next track/
group*1
Skip to the beginning
of the current track/
group*1
Fast-forward*2
Fast-rewind*2
*1Rotating and holding of the Shuttle switch during stop
mode allows you to skip to the beginning of the next
(current and previous) track/group continuously.
*2Fast-forward and fast-rewind speed become faster if
the operation is continued for five seconds.
What is the Group function?
The Group function enables you to select favorite music conveniently on your Network Walkman. You can
transfer to audio files or play songs by album or artist using the Group function.
Track1
Group1
Track2
Track3
Track1
Track2
Track3
Track1
Track2
Track3
Group2
Group3
Track1
Track2
Track3
Track1
Track1
Track2
Track3
Track1
On other operations
z Tip
You can switch to the Group mode by pressing the Group
mode button.
Shuttle switch operation
Rotate the Shuttle switch
clockwise once (+/>).
Rotate the Shuttle switch
counterclockwise once
(./–).
Rotate the Shuttle switch
clockwise (
+/>
) and hold
it.
Rotate the Shuttle switch
counterclockwise (./–)
and hold it.
•The track number is the order of songs in each group.
•You can switch between Track Name mode and Group
mode by pressing the GROUP button.
•In the Group mode, group names are displayed instead
of track names. In addition, any shift operations, such
as Skip or Repeat, are performed by group.
Transferring by group
The audio files transferred to the SonicStage software are
always grouped when transferred to the built-in flash
memory.
z Tip
A group created by SonicStage software has priority over
one created by MP3 file manager software on your
Network Walkman.
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Shuttle switch Press
(Confirm)
Nx button
MENU button
to (+/>)
to (./–)

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
14-GB
Advanced Operations
Repeat mode
There are three types of repeat mode: Track
Repeat, A-B Repeat and Sentence Repeat.
•Track Repeat (TRK Rep)
This mode plays back tracks repeatedly in the
following five ways.
Track Repeat mode
All Repeat
Single Repeat
Group Repeat
Group Shuffle
Repeat
All Groups Shuffle
Repeat
•A-B Repeat (A-B Rep)
This mode plays back the specified section in a
track repeatedly.
•Sentence Repeat (SENTENCE Rep)
This mode plays back voice data within a
specified section in a track repeatedly.
Selecting the repeat
mode
1Press the MENU button in stop mode.
The menu screen is displayed.
REPEAT MODE>
Operation
All tracks repeatedly
Current track repeatedly
Current group repeatedly
Current group repeatedly
in random order
All groups repeatedly
in random order
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Shuttle switch Press
(Confirm)
Nx button
MENU button
to (+/>)
to (./–)
2Rotate the Shuttle switch to select
“REPEAT MODE >” and press the
Nx button to confirm.
3Rotate the Shuttle switch to select a
desired repeat mode and press the Nx
button to confirm.
TRKRep
You can choose one mode among “TRK
Rep,” “A-B Rep” and “SENTENCE Rep.”
4Press the MENU button.
The display returns to the normal screen.
You can operate each repeat mode you
selected, as refer to the below.
•TRK Rep: see “Playing the tracks
repeatedly (Track Repeat).”
•A-B Rep: see “Playing a specified section
repeatedly (A-B Repeat).”
•SENTENCE Rep: see “Playing specified
sentences repeatedly (Sentence Repeat).”
To cancel the Menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Notes
•The display automatically returns to the normal
playback screen if you do not operate any button for 60
seconds.
•When there is no audio files in the built-in flash
memory, you cannot set any repeat mode.
• When you connect the Network Walkman to your
computer, the selected desired mode will be cancelled.
•You can select repeat mode only in stop mode.

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
15-GB
Advanced Operations
Playing the tracks
repeatedly (Track
Repeat)
The Track Repeat mode is changed by pressing
the REPEAT/SOUND button. You can check the
current Track Repeat mode with the icon of the
display.
Select the Track Repeat mode (TRK
Rep) first (page 14).
Then, press the REPEAT/SOUND
button repeatedly to select the repeat
mode you want.
Each press changes the Track Repeat icon as
follows:
Track Repeat icon
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REPEAT/
SOUND button
Playing a specified
section repeatedly (A-B
Repeat)
While playing a track, you can set the start point
(A) and end point (B) for a section you wish to
play repeatedly.
1Select the A-B Repeat mode (A-B Rep)
(page 14).
2Press the Nx button to start playback.
3Press the REPEAT/SOUND button to
set the start point (A) while playing
back.
“B” blinks.
:00A00B01
4Press the REPEAT/SOUND button to
set the end point (B).
“A B” is displayed and the specified section
is played back repeatedly.
:00A55B01
Notes
• You cannot set A-B Repeat for a section that
overlaps two or more tracks.
•If you do not set the end point (B), the end point
is automatically set at the end of the track.
•You cannot use A-B Repeat in the Group mode
or when the current time is displayed.
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continued
Shuttle switch Press
(Confirm)
Nx button
REPEAT/SOUND button
to (+/>)
to (./–)
none (Normal play)
(All Repeat)
(Single Repeat)
(Group Repeat)
(Group Shuffle Repeat)
(All Groups Shuffle Repeat)

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
16-GB
Repeat mode
(continued)
z Tips
•You can fast-forward or fast-rewind by rotating the
Shuttle switch, after the start point (A) is set. If the
track reaches the end while fast-forwarding, the end
point is set as point (B) and fast-forwarding continues.
A-B Repeat starts when you release the Shuttle switch.
If the track reaches the beginning while fast-rewinding,
it jumps to the end of the track, the end point is set as
point (B), and fast-rewinding continues.
•You can fast-forward or fast-rewind by rotating the
Shuttle switch, during A-B Repeat playback. If the
track reaches the track start/end while fast-forwarding
or fast-rewinding, playback is stopped (enters Standby).
A-B Repeat restarts when you release the Shuttle
switch.
To clear the start point (A) and end point
(B)
• Press the REPEAT/SOUND button during A-B
Repeat playback.
•Press the MENU button during A-B Repeat
playback.
•Select the Group mode by pressing the GROUP
button during A-B Repeat playback.
•Select the previous or next track by rotating the
Shuttle switch during A-B Repeat playback.
(The A-B Repeat mode is not canceled.)
To cancel the A-B Repeat mode
Change the Repeat mode in the menu screen (page
14).
Playing specified
sentences repeatedly
(Sentence Repeat)
This function automatically detects only voice
data from the setting point and repeats the voice
data for setting counts. It is useful for learning a
foreign language.
z Tip
The default repeat counts setting is 2 times for one
sentence. But you can change the repeat counts setting.
Refer to “Setting the repeat counts” on page 17.
1Select the Sentence Repeat mode
(SENTENCE Rep) (page 14).
2Press the Nx button to start playback.
3Press the REPEAT/SOUND button to
place the setting point during playback.
The Network Walkman detects spoken
sections and non-spoken sections from the
set point, and Sentence Repeat starts. (The
spoken section is repeated once (during
detection), and the setting is counted.)
1:0201 0
Notes
•You cannot use Sentence Repeat in the Group
mode, or when the current time is displayed.
•A spoken or non-spoken section of less than 1
second will not be detected.
•If a non-spoken section is not detected until the
track end, the track end point is recognized as a
non-spoken section and Sentence Repeat begins
from the previous spoken section.
To clear the setting point
•Press the REPEAT/SOUND button during
Sentence Repeat playback.
•Press the MENU button during Sentence Repeat
playback.
•Select the Group mode by pressing the GROUP
button during Sentence Repeat playback.
•Select the previous or next track by rotating the
Shuttle switch during Sentence Repeat playback.
(The Sentence Repeat mode is not canceled.)
To cancel the Sentence Repeat mode
Change the Repeat mode in the menu screen (page
14).
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NW-E50/E70/E90 GB/CS 3-267-071-13(1)
17-GB
Advanced Operations
continued
Setting the repeat
counts
You can set the repeat counts (1-9) of one
sentence for the Sentence Repeat mode.
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“REPEAT MODE >” and press the
Nx button to confirm.
3Rotate the Shuttle switch to select
“SENTENCE Rep” and press the Nx
button to confirm.
“COUNT:” is displayed on the screen.
COUNT:2
4Rotate the Shuttle switch to select a
desired repeat counts and press the
Nx button to confirm.
5Press the MENU button.
The display returns to the normal screen.
To cancel the Menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Changing the
display mode
You can view information such as track numbers
or titles in the display while music is played or
stopped. Change the display mode by operating
the Shuttle switch in the Menu mode.
•Lap Time: Elapsed time display mode
The following will be displayed after a music title and
artist name are displayed.
*Play: Displays and alternately.
Stop: Displays .
Search track: Displays > or ..
Fast-forward/Fast-rewind: Displays M or m.
•Title: Title display mode
When the music title includes more than 12 characters,
the title will be automatically scrolled.
Title/Artis
•Track info: Track information display mode
The track title, CODEC, and bit rate are displayed.
When the information includes more than 12
characters, the information will be automatically
scrolled.
Title/Codec/
While searching, fast-forwarding, or fast-rewinding a
track, the current playing position is displayed.
009 01:36
Track number Elapsed time
Play status*
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NW-E50/E70/E90 GB/CS 3-267-071-13(1)
18-GB
Selecting the group
display mode
For any menu mode, you can select the group
display by pressing the GROUP button.
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GROUP button
Changing the display mode
(continued)
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“DISPLAY >” and press the Nx
button to confirm.
The selected display mode blinks.
LapTime
3Rotate the Shuttle switch to select a
desired display mode and press the
Nx button to confirm.
The display switches to the selected display
mode.
DISPLAY>
4Press the MENU button.
The display returns to the normal screen.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Note
The display automatically returns to the normal playback
screen if you do not press any buttons for 60 seconds.
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MENU button
to (+/>)
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To cancel the group mode
Press the GROUP button in the group mode screen.
Note
The display automatically returns to the normal playback
screen if you do not operate any button for 30 seconds.

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
19-GB
Advanced Operations
Adjusting treble
and bass (Digital
sound preset)
You can adjust the treble and bass. You can preset
two settings, which can be selected during
playback.
Selecting the Sound
quality
Default settings
Sound SOUND 1 SOUND 2 SOUND OFF
quality
(S1) (S2)
(NORMAL SOUND)
Bass +1 +3 ±0
Treble ±0 ±0 ±0
Press and hold the REPEAT/SOUND
button for half a second.
The Sound quality setting is changed as follows:
To return to the normal Sound quality
Select “SOUND OFF.”
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REPEAT/
SOUND button
Adjusting the sound
quality
You can adjust the sound quality of bass and
treble parts.
Sound quality Emphasis level
Bass -4 to +3
Treble -4 to +3
You can preset desired sound quality settings as
“Sound 1” and “Sound 2.” While playing music,
you can assign a preset sound quality to music.
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“SOUND >” and press the Nx button
to confirm.
SOUND:2>
continued
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MENU button
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S1 S2 (none)

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
20-GB
Locking the
controls (HOLD)
You can protect your Network Walkman against
accidental operation by using the HOLD function
when carrying it.
Slide the HOLD switch in the direction
of the arrow.
All operation buttons are disabled.
If you press buttons while the HOLD switch is on,
“HOLD” blinks in the display.
To release the HOLD function
Slide the HOLD switch in the opposite direction of the
arrow.
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HOLD switch
3Set the tone for “SOUND 1.”
1Rotate the Shuttle switch to select
“SOUND 1 >” and press the Nx button
to confirm.
2“BASS:+1” appears, rotate the Shuttle
switch to adjust the emphasis level of
bass sound and press the Nx button to
confirm.
3“TREBLE: 0” appears, rotate the Shuttle
switch to adjust the emphasis level of
treble sound and press the Nx button to
confirm.
4Press the MENU button
The display returns to the normal screen.
To adjust the “SOUND 2” setting
Select “SOUND 2” in step 3.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Adjusting treble and bass
(Digital sound preset)
(continued)

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
21-GB
Advanced Operations
Storing non-audio
data
You can transfer data from the hard disk of your
computer to the built-in flash memory using
Windows Explorer.
The built-in flash memory is displayed in
Windows Explorer as an external drive (for
example: as the D drive).
Notes
•You cannot operate the SonicStage software while
operating the data storage function of your Network
Walkman to use files stored in the built-in flash
memory. The error message “Cannot access the Device/
media.” will be displayed when you try to operate both
of them simultaneously.
•If you store a lot of non-audio data into the built-in
flash memory, the space for audio data is reduced by
the same amount.

22-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Adjusting the settings of
your Network Walkman
2Rotate the Shuttle switch to select “PC
CLK:” and press the Nx button to
confirm.
PC CLK:ON
3Rotate the Shuttle switch to select
“OFF” and press the Nx button to
confirm.
4Press the MENU button
The display returns to the normal screen.
To change the setting to “ON”
Select “ON” in step 3.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Adjusting the time
setting of your
Network Walkman
to a computer’s
built-in clock
If the function is set to “ON,” the time setting of
your Network Walkman is automatically adjusted
to the computer’s built-in clock when your
Network Walkman is connected and audio file
transferring is executed (the SonicStage software
must be started). “ON” is selected by default.
You cannot play a song with a limited playing
period without the time setting of your Network
Walkman. Be sure to adjust the time setting.
To set the date and time on your Network
Walkman, refer to “Adjusting the current time
setting (DATE-TIME)” on page 23.
Changing the setting to “OFF”
The time setting of your Network Walkman does
not change even when your Network Walkman is
connected to a computer.
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
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MENU button
to (./–)
to (+/>)

23-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Adjusting the settings of your Network Walkman
4As you did in step 3, adjust the settings
for “month” and “date.”
After rotating the Shuttle switch to adjust the
“date” setting and pressing the Nx button
to confirm, the display switches to the time
setting screen.
0:00
5Rotate the Shuttle switch to adjust the
“hour” setting and press the Nx
button to confirm.
The “minute” digit blinks.
0:00
6As you did in step 5, adjust the settings
for “minute.”
After rotating the Shuttle switch to adjust the
“minute” setting and pressing the Nx
button to confirm, the display switches to the
time setting screen.
DATE-TIME
7Press the MENU button.
The display returns to the normal screen.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
To display the current time
Press the MENU button and hold it.
You can display the current time while pressing the
button.
Notes
•If the unit is not used for a long time, your settings of
the date and time may be reset.
• If the current time is not set, the display for the date and
time will be “-- --.”
•If PC CLK is set to “ON” (page 22), the time setting of
your Network Walkman is automatically adjusted to a
computer’s built-in clock when your Network
Walkman is connected to the computer.
•Depending on the shipping area, the time display
format of the unit is set to a 12-hour display or a 24-
hour display.
You cannot switch between a 12-hour display and a 24-
hour display in the unit.
A 24-hour display is shown in this manual.
Adjusting the
current time
setting (DATE-
TIME)
You can set and display the current time.
You can also adjust the time setting of your
Network Walkman to a computer’s built-in clock
by connecting your Network Walkman to the
computer (page 22).
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“DATE-TIME” and press the Nx
button to confirm.
The “year” digit blinks.
2004y 1m 1d
3Rotate the Shuttle switch to adjust the
“year” setting and press the Nx
button to confirm.
The “month” digit blinks.
2004y 1m 1d
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MENU button
to (+/>)
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24-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Limiting the
volume (AVLS)
You can set AVLS (Automatic Volume Limiter
System) to limit the maximum volume to prevent
auditory disturbance or distraction. With AVLS,
you can listen to music at a comfortable volume
level.
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“AVLS” and press the Nx button to
confirm.
“OFF” blinks.
AVLS :OFF
3Rotate the Shuttle switch to select “ON”
and press the Nx button to confirm.
The (AVLS) indication is displayed. The
volume is kept at a moderate level.
4Press the MENU button.
To change the setting to “OFF”
Select “OFF” in step 3.
To cancel the menu mode
Select [RETURN] in the menu screen, or press the
MENU button.
Setting the
volume using the
preset volume
function
There are two modes to adjust the volume level.
Manual mode: Press the VOLUME +/– button to
adjust the volume level in the
range of 0 to 31.
Preset mode: Press the VOLUME +/– button to
set the volume level to any of
three preset levels: LO, MID, or
HI.
Setting a volume level of
the preset mode
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“VOL: MAN.”
VOL :MAN
3Press the Nx button to confirm.
“MAN” blinks.
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MENU button
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Nx button
MENU button
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VOLUME +/–
button

25-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Adjusting the settings of your Network Walkman
Switching to the manual
mode
1Press the MENU button.
The menu screen is displayed.
2Rotate the Shuttle switch to select
“VOL: SET.”
VOL :SET>
3Press the Nx button to confirm.
“SET >” blinks.
4Rotate the Shuttle switch to select
“MAN.”
VOL :MAN
5Press the Nx button to confirm.
6Press the MENU button.
The display returns to the normal screen.
With this setting, you can adjust the volume
level by pressing the volume button.
4Rotate the Shuttle switch to select “SET
>.”
VOL :SET>
5Press the Nx button to confirm.
“VOL LO xx”* blinks.
*“xx” stands for numeric values of the
volume level.
VOL LO xx
6Set volume levels of three preset levels:
LO, MID, or HI.
1Press the VOLUME +/– button to set the
volume level of the LO preset.
2Rotate the Shuttle switch to select “VOL
MID xx,” and then press the VOLUME
+/– button to set the volume level of the
MID preset.
3Rotate the Shuttle switch to select “VOL
HI xx,” and then press the VOLUME +/–
button to set the volume level of the HI
preset.
7Press the Nx button to confirm.
8Press the MENU button.
The display returns to the normal screen.
With these settings, you can adjust the
volume level to any of three preset levels:
LO, MID, or HI.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Note
If AVLS (page 24) is set, the actual volume may be lower
than the settings.

26-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Changing the
backlight setting
You can select ON or OFF.
Menu Backlight mode
OFF Always off
ON Turns on for three seconds
after each operation
(or until scrolling is complete)
To set “ON”
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“LIGHT:” and press the Nx button to
confirm.
“OFF” blinks.
LIGHT:OFF
3Rotate the Shuttle switch to select “ON”
and press the Nx button to confirm.
LIGHT:ON
4Press the MENU button.
The display returns to the normal screen.
To change the setting to “OFF”
Select “LIGHT: OFF” in step 3.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Turning off the
beep sound
(BEEP)
You can turn off the beep sounds of your Network
Walkman.
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“BEEP:” and press the Nx button to
confirm.
“ON” blinks.
BEEP:ON
3Rotate the Shuttle switch to select
“OFF” and press the Nx button to
confirm.
BEEP:OFF
4Press the MENU button.
The display returns to the normal screen.
To change the setting to “ON”
Select “ON” in step 3.
To cancel the menu mode
Select [RETURN] in the menu screen, or press the
MENU button.
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MENU button
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NW-E50/E70/E90 GB/CS 3-267-071-13(1)
27-GB
Other functions
Other functions
Regrouping songs
(REGROUP)
The songs group function may be disabled* when
a song has been deleted from or added the built-in
flash memory by operating the computer in which
the SonicStage software is not installed (page 10).
In such a case, you may enable the group function
by regrouping audio file. When you need to edit
audio file, make sure that you connect your
Network Walkman to the computer and use the
SonicStage software.
*The order of songs will not be changed even if the song
group function is disabled.
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“REGROUP” and press the Nx
button to confirm.
REGROUP: N
You cannot regroup audio file while playing
music.
3Rotate the Shuttle switch to select “Y”
and press the Nx button to confirm.
“Really?” is displayed.
Really?
4Press the Nx button.
Regrouping starts and “REGROUPING”
blinks. When regrouping audio file is
complete, “COMPLETE” is displayed and
the display returns to the indication in step 2.
5Press the MENU button.
The display returns to the normal screen.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
Note
You cannot regroup songs while playing music.
(“REGROUP” will not be displayed in the menu screen.)
z Tip
In some cases, you may not be able to restore the
former grouping. When you need to edit audio
file, connect your Network Walkman to the
computer and use the SonicStage software.
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NW-E50/E70/E90 GB/CS 3-267-071-13(1)
28-GB
Formatting
memory (FORMAT)
You can use your Network Walkman to format the
built-in flash memory.
If memory is formatted, all data previously stored
in the memory will be erased. Be sure to verify the
data stored in the memory prior to formatting.
1Press the MENU button.
The menu screen is displayed.
REPEAT MODE>
2Rotate the Shuttle switch to select
“FORMAT” and press the Nx button
to confirm.
FORMAT:N
You cannot format memory while playing
music.
3Rotate the Shuttle switch to select “Y”
and press the Nx button to confirm.
“Really?” is displayed.
4Press the Nx button.
“FORMATTING” blinks and formatting
starts.
When formatting is complete,
“COMPLETE” is displayed and the display
returns to the indication in step 2.
5Press the MENU button.
The display returns to the normal screen.
To cancel the menu mode
Select [RETURN] in the menu screen or press the MENU
button.
To cancel formatting
Select “N” in step 3.
Notes
•You cannot format memory while playing music.
(“FORMAT” will not be displayed in the menu screen.)
•The MP3 file manager software and the MP3 audio
files transferred with this software are erased as a result
of formatting. When you restore the MP3 file manager
software, download it from the Sony customer service
website. For details, refer to “MP3 file manager
software operation” on page 37.
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29-GB
Other Information
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Other Information
Precautions
On installation
Never use your Network Walkman where it will
be subjected to extremes of light, temperature,
moisture or vibration.
On the headphones
Road Safety
Do not use headphones while driving, cycling, or
operating any motorized vehicle. It may create a
traffic hazard and is illegal in many areas. It can
also be potentially dangerous to play your
Network Walkman at a high volume while
walking, especially at pedestrian crossings. You
should exercise extreme caution or discontinue
use in potentially hazardous situations.
Preventing hearing damage
Avoid using the headphones at a high volume.
Hearing experts advise against continuous, loud
and extended play. If you experience a ringing in
your ears, reduce the volume or discontinue use.
Caring for others
Keep the volume at a moderate level. This will
allow you to hear outside sounds and to be
considerate to the people around you.
Warning
If there is lightning when you are using your
Network Walkman, take off the headphones
immediately.
On cleaning
•Clean your Network Walkman casing with a soft
cloth slightly moistened with water or a mild
detergent solution.
•Clean the headphone plug periodically.
Note
Do not use any type of abrasive pad, scouring powder or
solvent such as alcohol or benzene as it may mar the
finish of the casing.
If you have any questions or problems concerning
your Network Walkman, please consult your
nearest Sony dealer.

30-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Troubleshooting
If you experience any of the following difficulties while using your Network Walkman, use this
troubleshooting guide to help you to remedy the problem prior to consult a Sony dealer. Should any
problem persist, consult your nearest Sony dealer. For trouble concerning operations while connected to
your computer, please refer to “Troubleshooting” in the online help of the supplied software in addition.
To reset the player
If your Network Walkman does not operate normally or if there is no sound, even after checking the
troubleshooting guide below, remove the battery, then re-insert it.
What happened?
On operating
Symptom
There is no sound.
Noise is generated.
Buttons do not work.
The volume is not loud enough.
There is no sound from the right
channel of the headphones.
Playback has stopped suddenly.
Cause/Remedy
•The volume level is set to zero.
cTurn the volume up (page 12).
• The headphone jack is not connected properly.
cConnect the headphone jack properly (page 12).
•The headphone plug is dirty.
cClean the headphone plug with a soft dry cloth.
•Songs with a limited playing period is played.
cSongs with an expired playing period cannot be played.
•No audio files are stored in the memory.
cIf “NO DATA” is displayed, transfer audio file(s) from the
computer.
• The HOLD switch is set to on.
cSet the HOLD switch to off (page 20).
•Your Network Walkman contains moisture condensation.
cKeep your Network Walkman aside for a few hours.
•The remaining battery power is insufficient.
cReplace the battery (page 7).
The AVLS is enabled.
cDisable the AVLS (page 24).
•The headphone jack is not fully connected.
cConnect the headphone jack fully (page 12).
•The extension headphone cord is not properly connected to the
headphone jack of your Network Walkman or the headphone cord.
cConnect them properly (page 12).
The remaining battery power is insufficient.
cReplace the battery (page 7).

31-GB
Other Information
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
continued
On the display window
Symptom
The backlight is not turned on.
“s” is displayed for a title.
On the connection with the computer or supplied software
Symptom
The software cannot be installed.
“CONNECT” is not displayed when
connecting to the computer with the
dedicated USB cable.
Your Network Walkman is not
recognized by the computer when it is
connected to the computer.
Song cannot be transferred to your
Network Walkman.
Cause/Remedy
LIGHT is set to “OFF.”
cIn the menu mode, set “LIGHT” to “ON” (page 26).
Characters that cannot be displayed on your Network Walkman are
involved.
cUse the supplied SonicStage software to rename the title with
appropriate characters.
Cause/Remedy
An operating system not compatible with the software is used.
cFor details, refer to the separate manual “SonicStage operating
instructions.”
•Please wait for the authentication of the SonicStage software.
•Another application is running on the computer.
cWait for a while and reconnect the USB cable. If the problem
persists, disconnect the USB cable, restart the computer, and then
reconnect the USB cable.
• The dedicated USB cable is disconnected.
cConnect the dedicated USB cable.
•A USB hub is used.
cConnecting via a USB hub is not guaranteed. Connect the dedicated
USB cable directly to the computer.
The dedicate USB cable is disconnected.
cConnect the dedicated USB cable.
•The dedicated USB cable is not connected properly.
c Connect the USB cable properly.
•The free space of the built-in flash memory to where you want to
transfer audio files to is insufficient.
c Transfer any unnecessary songs back to your computer to increase
free space.
•You have already transferred to 400 songs or 400 groups to the built-
in flash memory using the SonicStage software.
c The maximum number of songs or groups that you can transfer to
the built-in flash memory using the SonicStage software is 400.
•You have already transferred to 40,000 songs or 400 groups to the
built-in flash memory using the MP3 file manager software.
c The maximum number of songs and groups that you can transfer to
the built-in flash memory using the MP3 file manager software is
40,000 and 400 respectively. (The maximum number of songs
contained in one group is 100.)
• Audio files with a limited playing period or playing count may not be
transferred due to restrictions set by copyright holders. For details on
the settings of each audio file, contact the distributor.

32-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Troubleshooting (continued)
Symptom
The number of audio files that can be
transferred to is limited. (Available
recording time is short.)
The operation of the Network
Walkman becomes unstable while it is
connected to the computer.
“Failed to authenticate Device/Media”
is displayed on the computer screen
while connecting the Network
Walkman to the computer.
Other
Symptom
There is no beep sound when your
Network Walkman is operated.
Your Network Walkman gets warm.
Cause/Remedy
•The free space of the built-in flash memory to where you want to
transfer to is not enough for the size of audio files you wish to
transfer.
c Transfer any unnecessary audio files back to the computer to
increase free space.
•Non-audio data is stored in the built-in flash memory to where you
want to transfer audio files to.
c Move non-audio data to the computer to increase free space.
USB hub or USB extension cable is used.
cConnecting via a USB hub or USB extension is not guaranteed.
Connect the dedicated USB cable directly to the computer.
Your Network Walkman is not connected to the computer properly.
cQuit the SonicStage software and verify the connection of the
dedicated USB cable. Restart the SonicStage software.
Cause/Remedy
BEEP is set to “OFF.”
c In the menu mode, set “BEEP” to ”ON” (page 26).
Sometimes, during normal conditions, the player becomes
slightly warm.

33-GB
Other Information
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Messages
Follow the instructions below if an error message appears in the display.
Message
ACCESS
AVLS
CANNOT PLAY
CONNECT
ERROR
EXPIRED
FILE ERROR
HOLD
LOW BATT
MEMORY FULL
MG ERROR
NO AUDIO
Meaning
Accessing the built-in flash memory.
The volume level exceeds the rated
value while the AVLS is enabled.
•Your Network Walkman cannot play
certain files because of incompatible
formats.
•Transferring has been interrupted
forcefully.
Your Network Walkman is connected to
the computer.
A malfunction is detected.
•The song with a playback restriction
has expired.
• The current time has not been set to
play the song with a playback
restriction.
•The song is protected by the playback
restriction that is not compatible with
your Network Walkman.
• The file cannot be read.
• The file is not normal.
All operation buttons are disabled since
the HOLD switch is set to on.
The battery is low.
The memory is full or there are 400
groups.
An unauthorized distribution file is
detected for copyright protection.
There is no audio files in the built-in
flash memory.
Remedy
Please wait for access to complete. This message
appears while transferring audio files and during
initialization of the built-in flash memory.
Turn the volume down or disable the AVLS.
If the file cannot be played, you can erase it from
the built-in flash memory.
For details, refer to “To delete abnormal data from
the built-in flash memory” (page 33).
You can operate your Network Walkman using the
SonicStage or MP3 file manager software, but you
cannot operate the controls on your Network Walkman.
Please consult your nearest Sony dealer.
•If the current time has not been set yet, set the
current time in the menu mode (page 23).
•If song cannot be played, you can erase it from
the built-in flash memory.
For details, refer to “To delete abnormal data
from the built-in flash memory (page 33).
•Your Network Walkman does not support
contents with a limited playing count. For details,
refer to “Note on playing songs with a limited
playing count” (page 11).
Transfer the normal audio file back to the computer
and then format your Network Walkman. (For
details, refer to “To delete abnormal data from the
built-in flash memory” on page 33.)
Set the HOLD switch to off to operate the buttons.
You must change the battery (page 7).
Delete songs or groups. A group without song is
also regarded as one group. To delete groups
without song, use the SonicStage software.
Transfer normal audio files back to the computer and
then format the built-in flash memory of your Network
Walkman. (For details, refer to “To delete abnormal
data from the built-in flash memory” on page 33.)
If there is no audio files in the built-in flash memory,
use the SonicStage software to transfer audio files.
To delete abnormal data from the built-in flash memory
If “CANNOT PLAY,” “EXPIRED,” or “FILE ERROR” is displayed, there is a problem with all or part of
the data stored in the built-in flash memory.
Please follow the procedures below to erase data you cannot play.
1Connect your Network Walkman to the computer, and start the SonicStage software.
2If you have already specified the data with problems (such as expired songs), erase the data from the
Portable Player window of the SonicStage software.
3If the problem persists, click the button on the SonicStage software to transfer all data
without problems while your Network Walkman is connected to the computer.
4Disconnect your Network Walkman from the computer and then format the built-in flash memory using
the FORMAT menu (page 28).

34-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Frequency response
20 to 20,000 Hz (single signal measurement)
Output
Headphone: Stereo mini-jack
Signal-to-noise ratio (S/N)
80 dB or more (excluding ATRAC3 66 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
LR03 (Size AAA) alkaline battery
Battery life (continuous playback)
ATRAC3 format: Approximately 70 hours
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/E90) (1)
Extension headphone cord (1)
CD-ROM (1)
Operating Instructions (1)
SonicStage operating instructions (1)
Design and specifications are subject to change
without notice.
US and foreign patents licensed from Dolby
Laboratories.
ATRAC3plus*
1 hr. 00 min. (256 kbps)
4 hr. 20 min. (64 kbps)
5 hr. 50 min. (48 kbps)
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)
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
Specifications
Maximum recording time (Approx.)
NW-E50
ATRAC3plus*
2 hr. 00 min. (256 kbps)
8 hr. 40 min. (64 kbps)
11 hr. 40 min. (48 kbps)
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)
NW-E70
ATRAC3plus*
4 hr. 00 min. (256 kbps)
17 hr. 10 min. (64 kbps)
23 hr. 20 min. (48 kbps)
ATRAC3*
8 hr. 20 min. (132 kbps)
10 hr. 30 min. (105 kbps)
16 hr. 50 min. (66 kbps)
MP3
4 hr. 00 min. (256 kbps)
8 hr. 00 min. (128 kbps)
NW-E90
*The values for ATRAC3, ATRAC3plus apply if the
MP3 file manager software has been erased from the
built-in flash memory.

35-GB
Other Information
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Glossary
MagicGate
Copyright protection technology that consists of authentication and encryption technology. Authentication
ensures that protected content is transferred only between compliant devices and media, and that protected
content is recorded and transferred in an encrypted format to prevent unauthorized copying or playback.
Note
is terminology denoting the copyright protection system developed by Sony. It does not guarantee
conversion among other media.
OpenMG
Copyright protection technology that securely manages music content from the EMD/Audio CD on a
personal computer. Application software that is installed on the computer encrypts the digital music content
when recording on the hard drive. This allows you to enjoy music content on the computer, but prevents
unauthorized transmission of this content across a network (or elsewhere). This PC copyright protection
complies with “MagicGate”, and allows you to transfer digital music content from a PC’s hard drive to a
compliant device.
SonicStage
Copyright protection technology that securely manages music content from the EMD/Audio CD on a
personal computer. Application software that is installed on the computer encrypts the digital music content
when recording on the hard drive. This allows you to enjoy music content on the computer, but prevents
unauthorized transmission of this content across a network (or elsewhere). This PC copyright protection
complies with “MagicGate”, and allows you to transfer digital music content from a computer’s hard disk
to a compliant device.
ATRAC3
ATRAC3, which stands for Adaptive Transform Acoustic Coding3, is audio compression technology that
satisfies the demand for high sound quality and high compression rates.
The ATRAC3 compression rate is approximately 10 times higher than that of the Audio CD, resulting in an
increased data capacity for the media.
ATRAC3plus
ATRAC3plus, which stands for Adaptive Transform Acoustic Coding3plus, is audio compression
technology that compresses data higher than ATRAC3. The ATRAC3plus is new audio compression
technology that enables equal or higher quality sound comparing to ATRAC3.
Bit rate
Indicates the data amount per second. The rate is reflected in bps (bit per second).
64 kbps means 64000 bits of information per second. If the bit rate is large, that means a large amount of
information is used to play music. Comparing music of the same format (e,g., ATRAC3plus), 64 kbps data
offers better sound quality than 48 kbps data. However, audio files in formats such as MP3 have different
encoding methods, and thus sound quality cannot be determined by simply comparing the bit rate.
MP3
MP3, which stands for MPEG-1 Audio Layer-3, is a format standard for music file compression. It was codified
by the Motion Picture Experts Group, a working group of ISO (International Organization for Standardization).
It compresses audio CD data to approximately one tenth its original size. Because the MP3 encoding algorithm
has been made publicly available, there are various encoders and decoders that are compliant with this standard.

36-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
Display
(Menu mode)
FORMAT >
(Formatting
memory)
REGROUP >
(Regrouping data)
[RETURN]
Menu list
Press the MENU button to display the menu mode and use the Shuttle switch (rotate:
select/press: confirm) to change the settings of your Network Walkman.
For details about each menu, refer to the pages in parentheses. The menu with a “>” mark will be followed
by a detailed-setting screen when you press the Shuttle switch to confirm.
Display
(Menu mode)
REPEAT MODE >
DISPLAY >
(Display mode)
VOL:
(Preset volume)
SOUND >
(Digital sounds
preset)
AVLS:
(Automatic Volume
Limiter System)
BEEP:
(Operation sounds
setting)
LIGHT:
(LCD backlight
setting)
DATE-TIME
(Current time
setting)
PC CLK:
(Adjusting the time
setting to a computer
built-in clock)
Purposes
You can select your favorite
repeat mode. (page 14)
You can select your favorite
display mode. (page 17)
You can preset your desired
volume level. (page 24)
You can preset your desired
sound quality. (page 19)
You can set to “ON” or
“OFF.” (page 24)
You can set to “ON” or
“OFF.” (page 26)
“OFF”: Always off
“ON”: Turns on for three
seconds after each operation
(page 26)
You can set and display the
current time. (page 23)
You can adjust the time setting
of your Network Walkman to
a computer built-in clock.
(page 22)
Purposes
You can format the built-in
flash memory. (page 28)
You can restore the group
function. (page 27)
You can switch to the normal
mode by selecting [RETURN]
and pressing the Nx button.

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
37-GB
MP3 file manager software operation
What you can do
with the MP3 file
manager
You can transfer MP3 audio files easily, using the
MP3 file manager software, to your Network
Walkman in the same format (MP3), unlike the
SonicStage software, which converts MP3 audio
files into ATRAC3 or ATRAC3plus format.
The MP3 file manager software is pre-installed
on the Network Walkman at the factory;
thereby no installation is necessary.
However, be sure to install the
SonicStage software from the supplied
CD-ROM in your computer before using
the MP3 file manager software. The
computer will not recognize your
Network Walkman unless you install
the SonicStage software (in the
supplied CD-ROM) first. If you use a
computer that is not installed with the
SonicStage software, you need to install the
driver file for your Network Walkman from
the Sony customer service website (http://
www.css.ap.sony.com/).
System requirements
•OS:Windows XP Professional
Windows XP Home Edition
Windows 2000 Professional
(Simplified Chinese)
•CPU: Pentium II 400MHz or higher
•RAM: 64MB or more
•HDD: 5MB or more
•Display: 16bit color or higher,
800 × 600 dots or better
•USB port (Supports USB (Previously called
USB1.1))
MP3 file manager
software operation
continued
Transferring MP3
audio files from
the computer to
your Network
Walkman
1Connect your Network Walkman to
your computer.
Connect the small connector of the supplied
dedicated USB cable into the USB jack on the
Network Walkman, then the large connector to a
USB port on your computer.
“CONNECT” appears in the display.
2Click [My Computer]-[removable
disk:]* on your computer.
*[Memory Stick - MG] in the case of
Windows XP Professional/
Windows XP Home Edition
3Click [Esys] folder to open in the
removable disk.
4Double-click [MP3FileManager.exe] to
start it.
OPEN
OPEN
Dedicated USB cable (supplied)
to a USB port
to the USB jack
ACCESS
lamp

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
38-GB
Transferring MP3 audio files
from the computer to your
Network Walkman
(continued)
5Drag the MP3 audio files you want to
transfer to your Network Walkman and
drop them to the MP3 File Manager
screen.
You can also transfer MP3 format audio
files to your Network Walkman by
dragging a folder.
Notes
•Do not disconnect the USB cable or remove your
Network Walkman when the MP3 File Manager
software is running. If you do, operation is not
guaranteed.
•The ACCESS lamp blinks while your Network
Walkman accesses the computer.
•Do not disconnect the USB cable or remove your
Network Walkman when the ACCESS lamp is
blinking. The data being transferred may be destroyed.
•Install Service Pack 3 or later when you use Windows
2000.
•With the Network Walkman, priority is given to the
display of ID3 Tag information. (ID3 Tag is the format
that adds music title or artist name information, etc., to
an MP3 file. The Network Walkman supports version
1.0/1.1/2.2/2.3/2.4.)
•Use of your Network Walkman with a USB hub or a
USB extension cable is not guaranteed. Always connect
your Network Walkman to the computer directly using
the dedicated USB cable.
•Some USB devices connected to the computer may
interfere with the proper operation of your Network
Walkman.
•The control buttons on your Network Walkman are all
disabled while it is connected to a computer.
If the MP3 File Manager software is
accidentally erased by formatting,
etc., you can restore it from the
supplied CD-ROM by following the
procedure below:
1Connect your Network Walkman to your
computer with the USB cable.
2Insert the supplied CD-ROM into your
computer.
3Open the CD-ROM, select the
[MP3FileManager] folder and open it with
Windows Explorer.
4Select the folder ([English], [Korean],
[Simplified Chinese]) suitable for your
computer’s OS and open it with Windows
Explorer.
5Double-click the installation file
([MP3FileManager_1.1_Update_ENU.exe],
[MP3FileManager_1.1_Update_KOR.exe],
[MP3FileManager_1.1_Update_CHN.exe]).
Installation starts.
Follow the instructions of the installation wizard.
(You can also download the MP3 File Manager
software from the Sony customer service
website [http://www.css.ap.sony.com/].)
•You can display the data stored in the built-in flash
memory using Windows Explorer when your Network
Walkman is connected to the computer.
•MP3 audio files compliant with the MP3 File Manager
software are the one sampling frequency rate of
44.1 kHz, bit rate 8 – 320 kbps.
On language support
The ability to display the languages on your MP3
File Manager will depend on the installed OS on
your PC. For better results, please ensure that the
installed OS is compatible with the desired
language you want to display.
–We do not guarantee all the languages will be
able to be displayed properly on your MP3 File
Manager
–User-created characters and some special
characters may not be displayed.

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
39-GB
MP3 file manager software operation
Display of MP3 file manager
1Album list
Double click this to show the included track
list. Double click again to hide the track list.
2Track list
3 (Erase)
Click this button to erase selected albums or
tracks.
4 (All erase)
Click this button to erase all the albums or
tracks.
5 (Exit)
Clicks this button to finish the MP3 file
manager.
6A selected line turns blue
You can select several albums or tracks
simultaneously using the CTRL key or Shift
key.
Note
Audio files transferred to the built-in flash memory using
SonicStage software are not displayed on the MP3 file
manager screen. In addition, audio files transferred to the
built-in flash memory using MP3 file manager software
are not displayed on the SonicStage software screen.
2
6
3
4
5
1

NW-E50/E70/E90 GB/CS 3-267-071-13(1)
40-GB
Erasing audio file
You can erase a song stored in the built-in flash
memory by track or album using MP3 file
manager.
1Open the MP3 file manager.
2Select the title you want to erase.
3Click the (Erase) button in the
screen.
z Tip
You can select several albums or tracks simultaneously
using CTRL key or Shift key. However, albums and
tracks cannot be selected simultaneously.
Ordering audio file
You can move a song stored in the built-in flash
memory by track or album using MP3 file
manager.
1Open the MP3 file manager.
2Select the title you want to move.
3Move it by drag and drop.

41-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
A
A-B Repeat 15
ACCESS lamp 10, 38
Accessories 6
ATRAC3 35
ATRAC3plus 35
Audio CDs 4
AVLS (Limiting the volume)
9, 24
B
Backlight 26
Battery 5, 7
BEEP (Beep sound) 26
Bit rate 35
C
CD (Audio CDs) 4
CD-ROM 6, 10
Clock 22, 23
Computer 4, 10, 37
D
DATE-TIME 23
Display 9, 15, 33
Display mode 17
Download 4
E
EMD service 4, 11
Explorer (Windows Explorer)
10, 21
F
Fast-forward 13
Fast-rewind 13
FORMAT 28
Formatting 28
G
Group 13, 18
H
Headphones 6, 12, 29
HOLD 20
HOLD function (Locking the controls)
20
L
LIGHT 26
Limiting the volume (AVLS)
24
Listening 12
Locking the controls (HOLD function)
20
M
MENU button 14, 17-20, 22-28
Menu list 36
MP3 4, 10, 35, 37
MP3 file manager software
37
O
OpenMG 35
P
PC CLK 22
Play 12
Index
continued

42-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)
R
Regroup 27
Remaining battery indication
7
Repeat 14
Repeat count 17
Reset 30
RETURN 36
S
Sentence Repeat 16
Serial Number 6
Shuffle Repeat 14
Shuttle switch 13-20, 22-28
Skip to the beginning of a track
13
SonicStage 35
Sound preset (Digital Sound Preset)
19
T
Time setting 22, 23
Title 17
Track Repeat 15
Transferring 4, 10, 37
Troubleshooting 30
U
USB cable 6, 10, 37
V
Volume 24
W
WAV format 4
Windows Explorer 10, 21, 38
Index (continued)

43-GB
NW-E50/E70/E90 GB/CS 3-267-071-13(1)

2-CS
NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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6-CS
NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
10-CS
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
13-CS
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Track2
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
18-CS
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
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NW-E50/E70 GB/CS 3-267-071-12(1)
23-CS
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NW-E50/E70 GB/CS 3-267-071-12(1)
24-CS
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NW-E50/E70 GB/CS 3-267-071-12(1)
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