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D-NE050_2-685-477-11(1)_GB

WARNING

To reduce the risk of fire or electric shock, do not expose this 
apparatus to rain or moisture.

Do not install the appliance in a confined space, such as a 
bookcase or built-in cabinet.

To reduce the risk of  fire, do not cover the ventilation of the 
apparatus with newspapers, tablecloths, curtains, etc. And do not 
place lighted candles on the apparatus.

To reduce the risk of fire or electric shock, do not place objects 
filled with liquids, such as vases, on the apparatus.

CAUTION

The use of optical instruments with this product will increase eye 
hazard.

Certain countries may regulate disposal of the battery used to 
power this product. Please consult with your local authority.

The validity of the CE marking is restricted to only those countries 
where it is legally enforced, mainly in the countries EEA (European 
Economic Area).

For customers who purchased this product in the USA

Note:

 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 by 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.

Portable CD Player

Operating Instructions

2-685-477-

11

 (1)

©2006 Sony Corporation    Printed in China

D-NE050

Printed on 100 % recycled 

paper using VOC (Volatile 

Organic Compound)-free 

vegetable oil based ink.

Discs Playable on this CD 

Player

• 

Audio CDs

 (CD-DA format CDs)

• 

MP3 CDs

 (CD-R/CD-RW on which audio data compressed in 

the MP3 format has been recorded)*
* Only ISO 9660 Level 1/2 and Joliet extension format discs can 

be played.

Bit rates and sampling frequencies this CD player can play are as 
follows. Variable Bit Rate (VBR) files can also be played.

Bit rates

Sampling frequencies

MPEG-1 Layer3

32 – 320 kbps

32/44.1/48 kHz

MPEG-2 Layer3

  8 – 160 kbps

16/22.05/24 kHz

MPEG-2.5 Layer3   8 – 160 kbps

8/11.025/12 kHz

MP3 CDs

The usable number of groups and files
• Maximum number of groups: 256
• Maximum number of files: 512

Playing order

The playing order may differ depending on the method used to 
record MP3 files on the disc. In the following example, files are 
played in order of 

1

 to 

7

.

MP3

Group

File

(Maximum directory levels: 8)

Notes

• Depending on the quality of the disc and/or the condition of the 

recording device, it may take a while for playback to start. It is 
also possible playback may not start at all.

• On a disc that has MP3 files, do not save files in other formats 

and do not make unnecessary folders.

• Be sure to add the file extension “mp3” to the file name. 

However, if you add the extension “mp3” to a file other than 
an MP3 file, the player will not be able to recognize the file 
properly.

• To compress a source in an MP3 file, we recommend setting 

the compression parameters to “44.1 kHz,” “128 kbps,” and 
“Constant Bit Rate.”

• To record up to the maximum capacity, set the writing software 

to “halting of writing.”

Remaining battery power

Sound mode

Track number

Playing time

Play mode

Bookmark

* The button has a tactile dot.

Display

*(play/pause)

DC IN 4.5 V

 (headphones) jack

 (stop) 

HOLD (rear)

VOL +*/–

to an AC outlet

AC power adaptor

Headphones

SOUND/AVLS

/

 (group) –/+

P MODE/

OPEN

GROUP

MP3 indicator

Group indicator

“WALKMAN”,   

   , and   

   are registered trademarks of Sony Corporation.

Power Sources

To use the batteries (not supplied)

1

  Slide OPEN to open the player lid and open the battery 

compartment lid inside the CD player.

2

  Insert two LR6 (size AA) alkaline batteries by matching the 

 

to the diagram inside the CD player and close the lid until it 
clicks into place. Insert the 

 end first (for both batteries).

Battery life* (approx. hours) 

(When the CD player is used on a flat and stable place.)
Playing time varies depending on how the CD player is used.

When using two Sony alkaline batteries LR6 (SG)  

(produced in Japan)
G-PROTECTION

G-on G-off

Audio CD

16

11

MP3 CD (Recorded at 128 kbps)

23

23

* Measured value by the standard of JEITA (Japan Electronics and 

Information Technology Industries Association).

• The indicator sections of 

 roughly show the remaining 

battery power. One section does not always indicate one-fourth 
of the battery power.

To use the AC power adaptor (not supplied)

Connect the AC power adaptor as illustrated.

Playing a CD

1

  Slide OPEN to open the lid and fit the CD to the pivot, then 

close the lid.

2

  Press 

To play from the first track, press and hold 

 until playback 

starts while the CD player is stopped. 
To jump to the succeeding/previous groups*, press GROUP 
first, then press 

 + or 

 –. *MP3 CD only

• This CD player can play CD-Rs/CD-RWs recorded in the 

Compact Disc Digital Audio (Audio CD) format, but playback 
capability may vary depending on the quality of the disc and 
the condition of the recording device.

• This product is designed to play back discs that conform to 

the Compact Disc (CD) standard. 
Recently, various music discs encoded with copyright 
protection technologies are marketed by some record 
companies. Please be aware that among those discs, there are 
some that do not conform to the CD standard and may not be 
playable by this product.

• Depending on the CD, this player may display a total 

number of files that includes both playable and unplayable 
files.  However, because the player skips unplayable files 
automatically, only the playable ones will be played.

Note on DualDiscs

A DualDisc is a two sided disc product which mates DVD 
recorded  material on one side with digital audio material on 
the other side.  However, since the audio material side does not 
conform to the Compact  Disc (CD) standard, playback on this 
product is not guaranteed.

Digital MEGA BASS function 

During play, press SOUND/AVLS repeatedly to select “SND 1” 
or “SND 2.”
If the sound is distorted, turn down the volume.

AVLS* function

*Automatic Volume Limiter System

Press and hold SOUND/AVLS.
If “AVLS” flashes three times, the function is enabled.
If “AVLS” flashes once, the function is disabled.

AMS* / search function

*Automatic Music Sensor

To find the beginning of the previous/current/next/succeeding 
track(s): Press 

/

 repeatedly.

To go backward/forward quickly: Press and hold 

/

.

Play mode function 

During play, press P MODE/

 repeatedly:

No indication (normal play) 

 “

 (group play)”

1)

 

 “1”(single 

track play) 

 “SHUF”(shuffle play) 

 “

 SHUF (group 

shuffle play)”

2)

 

 “

”(Bookmark play)

To repeat the play mode you selected, press and hold P MODE/

 

until “

” appears.

1)

 All files in the selected group are played once. MP3 CD only.

2)

 All files in the selected group are played once in random order. 

MP3 CD only.

G-PROTECTION function

The function provides protection against sound skipping during 
many active uses.*
The default setting is “G-on.” To select “G-off,” press 

 while 

you keep pressing 

 during stop. To enjoy high quality CD 

sound, select “G-off”.
* Sound may skip: if the CD player receives stronger continuous 

shock than expected / if a dirty or scratched CD is played / when 
using poor-quality CD-Rs/CD-RWs or if there is a problem with 
the recording device or application software.

Bookmark play 

If you add Bookmarks to your favorite tracks, you can listen to 
these tracks only from the track with the lowest number.

1

  During playback of the track where you want to add a 

Bookmark, press and hold 

 until “

 (Bookmark)” flashes 

on the display.

2

  Repeat step 1 to add Bookmarks to the tracks you want.

3

  Press P MODE/

 repeatedly until “

” flashes.

4

  Press 

.

To remove the Bookmarks

During playback of the track with a Bookmark, press and hold 

 

until “

” disappears from the display.

If you change CDs and start playing, all the bookmarks added for 
the previous CD will be erased.

Precautions

On safety

• Should any solid objects or liquid fall into the CD player, unplug 

it and have it checked by qualified personnel before operating it 
any further.

• Do not put any foreign objects in the DC IN 4.5 V (external 

power input) jack.

On power sources

• When you are not using the CD player for a long time, 

disconnect all power sources from the CD player.

On the AC power adaptor 

• Use only the AC power adaptor supplied. 

If your player is not supplied with an AC 
power adaptor, use an AC-E45HG AC power 
adaptor*. Do not use any other AC power 
adaptor. It may cause a malfunction.
* Not available in Australia and some other 

regions. Ask your dealer for detailed 
information.

Polarity of the 

plug

• Do not touch the AC power adaptor with wet hands.
• Connect the AC power adaptor to an easily accessible AC outlet. 

Should you notice an abnormality in the AC power adaptor, 
disconnect it from the AC outlet immediately.

On dry batteries

• Do not throw the batteries into fire.
• Do not carry the batteries with coins or other metallic objects. 

It can generate heat if the positive and negative terminals of the 
battery are accidentally contacted by a metallic object.

• Do not mix new batteries with old ones.
• Do not use different types of batteries together.
• When the batteries are not to be used for a long time, remove 

them.

• If battery leakage occurs, wipe off any deposit in the battery 

compartment, and install new batteries. In case the deposit 
adheres to you, wash it off thoroughly.

On the CD player

• Keep the lens on the CD player clean and do not touch it. If 

you do so, the lens may be damaged and the CD player will not 
operate properly.

• Do not put any heavy object on top of the CD player. The CD 

player and the CD may be damaged.

• Do not leave the CD player in a location near heat sources, or 

in a place subject to direct sunlight, excessive dust or sand, 
moisture, rain, mechanical shock, unleveled surface, or in a car 
with its windows closed.

• If the CD player causes interference to the radio or television 

reception, turn off the CD player or move it away from the radio 
or television.

• Discs with non-standard shapes (e.g., heart, square, star) cannot 

be played on this CD player. Attempting to do so may damage 
the CD player. Do not use such discs.

On 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 some areas.  It can also be potentially dangerous to play your 
headsets at 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 headphones at high volume. Hearing experts advise 
against continuous, loud and extended play. If you experience a 
ringing in your ears, reduce volume or discontinue use.

Consideration 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.

To clean the plugs

If the plugs become dirty, there is no audio or noise is heard. Clean 
them with a dry soft cloth periodically.

Troubleshooting

Should any problem persist after you have made these checks, 
consult your nearest Sony dealer.

“Hold” appears in the display when you press a button, and 

the CD does not play.

 The buttons are locked. Slide HOLD back.

The volume does not increase even if you press VOL + 

repeatedly.

 Press and hold SOUND/AVLS until “AVLS” flashes once so that 

you can cancel the AVLS function.

The CD player does not operate properly.

 Moisture condensation has occurred. Leave the player aside for 

several hours until the moisture evaporates.

Even though the file number is displayed, the player skips 

the file and does not play it.

 A file with a format that is unplayable on this player is recorded 

on the CD.

Specifications

System 

Compact disc digital audio system

Laser diode properties

Emission duration: Continuous
Laser output: Less than 44.6 µW (This output is the value 
measured at a distance of 200 mm from the objective lens surface 
on the optical pick-up block with 7 mm aperture.)

Power requirements

• Two LR6 (size AA) batteries: 1.5 V DC × 2
• AC power adaptor (DC IN 4.5 V jack): 
  220 V, 50 Hz (Model for China)
  120 V, 60 Hz (Model for Mexico)

Dimensions (w/h/d) (without projecting parts and 

controls)

Approx. 139.8 × 29.0 × 139.8 mm (5 5⁄8 × 1 3⁄16 × 5 5⁄8 in.)

Mass (excluding accessories)

Approx. 203 g (7.2 oz.)

Operating temperature

5°C - 35°C (41°F - 95°F)

MPEG Layer-3 audio coding technology and patents
licensed from Fraunhofer IIS and Thomson.

Design and specifications are subject to change without notice.

Supplied accessories

Headphones (1)

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