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NW-MS70D/MS90D/MS77DR
Operating Instructions
3-248-529-15(1)
© 2004 Sony Corporation
Portable Memory Stick Audio Player
Network Walkman
"WALKMAN" is a registered trademark of
Sony Corporation to represent Headphone
Stereo products.
is a trademark of Sony
Corporation.


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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.
For the customers in the
United States
Owner's Record
The model number is located in the front and the serial
number is located inside the "Memory Stick" slot cover
of the player (see page 10). Record the serial number in
the space provided below.
Refer to them whenever you call your Sony dealer
regarding this product.
Model No.
Serial No.
INFORMATION:
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses,
and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions,
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does
cause harmful interference to radio or television
reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to
correct the interference using one or more of the
following measures:
­ Reorient or relocate the receiving antenna.
­ Increase the separation between the equipment and
receiver.
­ Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
­ Consult the dealer or an experienced radio/TV
technician for help.
You are cautioned that any changes or modifications not
expressly approved in this manual could void your
authority to operate this equipment.
If you have any questions about this product:
Visit: www.sony.com/walkmansupport
Contact: Sony Customer Information Services Center at
(866)-456-7669
Write: Sony Customer Information Services Center
12451 Gateway Blvd..
Fort Myers, FL33913


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For the customers in the
Netherlands
Voor de Klanten in Nederland
Gooi de batterij niet weg maar lever
deze in als klein chemisch
afval(KCA).
Declaration of Conformity
Trade Name:
SONY
Model No.:
NW-MS70D
NW-MS90D
NW-MS77DR
Responsible Party:
Sony Electronics Inc.
Address:
16450 W. Bernardo Dr, San
Diego, CA 92127 USA
Telephone Number:
858-942-2230
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.


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This manual explains how to operate
Network Walkman. For details on how to use
the supplied software (SonicStage), 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.
Program ©2001, 2002, 2003, 2004 Sony Corporation
Documentation ©2004 Sony Corporation
OpenMG and its logo are trademarks of Sony
Corporation.
SonicStage and its logo are trademarks of Sony
Corporation.
"MagicGate Memory Stick" is trademark of Sony
Corporation.
"Memory Stick" and
are trademarks of Sony
Corporation.
"Memory Stick Duo" and
are trademarks
of Sony Corporation.
"MagicGate" and
are 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.
US and foreign patents licensed from Dolby Laboratories.
All other trademarks and registered trademarks are
trademarks or registered trademarks of their respective
holders.
In this manual, TM and ® marks are not specified.


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Table of Contents
Overview ............................................ 6
What you can do with your Network
Walkman ................................... 6
Other features ................................. 7
On "MagicGate Memory Stick" ..... 8
Using "Memory Stick" (not supplied)
on your Network Walkman ...... 9
Step 1: Checking the package
contents ...................................... 10
Step 2: Charging the battery ............. 11
Locating controls .............................. 13
Network Walkman ........................ 13
Display .......................................... 14
Basic Operations
Transferring audio files from the
computer to your Network
Walkman .................................... 15
Note on playing songs with a
limited playing period (Timeout
contents) ................................. 18
Note on playing songs with a limited
playing count .......................... 18
Recording onto your
Network Walkman
-- Only for NW-MS77DR ......... 19
Listening to music with your Network
Walkman .................................... 22
What is the Group function? ......... 23
On other operations ...................... 24
Removing the headphones from your
Network Walkman .................. 25
Attaching the plug cover to the
supplied extension headphone
cord ......................................... 26
Advanced Operations
Playback mode ................................. 27
Changing the display mode .............. 28
Selecting the group
display mode .......................... 29
Displaying the remaining recordable
time
-- Only for NW-MS77DR ......... 29
Adjusting treble and bass (Digital
sound preset) .............................. 30
Selecting the Sound quality .......... 30
Adjusting the sound quality .......... 31
Locking the controls (HOLD) .......... 32
Storing data other than audio files .... 32
Adjusting the settings of your
Network Walkman
Adjusting the time setting of your
Network Walkman to a
computer's built-in clock ............ 33
Adjusting the current time setting
(DATE-TIME) ............................ 34
Limiting the volume (AVLS) ............ 35
Setting the volume using the preset
volume function ......................... 35
Setting a volume level of the preset
mode ....................................... 35
Switching to the manual mode ..... 36
Turning off the beep sound
(BEEP) ....................................... 37
Changing the backlight setting ......... 37
Changing the setting of
synchro-recording
-- Only for NW-MS77DR ......... 38
Selecting the bit rate
-- Only for NW-MS77DR ......... 39
Editing the track name and group
name (EDIT NAME)
-- Only for NW-MS77DR ......... 39
Other functions
Erasing audio file (ERASE) ............. 41
Regrouping songs (REGROUP) ....... 42
Charging the battery with a USB
connection (USB CHARGE) ..... 43
Formatting memory (FORMAT) ...... 44
Other Information
Precautions ....................................... 45
When disposing the Network
Walkman ................................. 46
Troubleshooting ................................ 48
To reset the player ......................... 48
What happened? ........................... 48
Error messages .............................. 53
Specifications ................................... 56
Glossary ............................................ 57
Menu list ........................................... 59
Index ................................................. 60