Sony Walkman D-EJ750 User manual

Portable
CD Player
Operating Instructions
About the area code
The area code of the location in which you purchased the CD player
is shown on upper left of the bar code label on the package.
For accessories supplied with your CD player, check the area code
of your model and see “Accessories (supplied/optional).”
3-237-144-21 (1)
D-EJ750
D-EJ751
D-EJ753
D-EJ755
© 2002 Sony Corporation
“WALKMAN” is a trademark of
Sony Corporation.

2
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 newspapers, 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.
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.
CAUTION
• INVISIBLE LASER RADIATION WHEN
OPEN
• DO NOT STARE INTO BEAM OR VIEW
DIRECTLY WITH OPTICAL
INSTRUMENTS
For the customers in Australia
The supply cord of the AC power adaptor cannot be
replaced; if the cord is damaged, the AC power adaptor
should be discarded.
For the customers in the USA and Canada
RECYCLING NICKEL CADMIUM BATTERIES
Nickel cadmium batteries are recyclable.
You can help preserve our environment
by returning your used rechargeable
batteries to the collection and recycling
location nearest you.
Note: In some areas the disposal of
nickel cadmium batteries in household
or business trash may be prohibited.
For more information regarding recycling of
rechargeable batteries, call toll free 1-800-822-8837, or
visit http://www.rbrc.org/.
Caution: Do not handle damaged or leaking nickel
cadmium batteries.

3
Table of Contents
Getting started
Locating the controls ................................... 4
Playing a CD
1. Connect your CD player. ......................... 6
2. Insert a CD. ............................................. 6
3. Play a CD. ............................................... 6
Playback options
Playing tracks repeatedly (Repeat play) .... 10
Playing a single track (Single play) ........... 10
Playing tracks in random order
(Shuffle play) ......................................... 10
Playing tracks in your favorite order
(PGM play) ............................................ 11
Available features
G-PROTECTION function ........................ 12
Emphasizing the bass sound (SOUND) .... 12
Protecting your hearing (AVLS) ................ 13
Locking the controls (HOLD) ................... 13
Turning off the operation beep sound ........ 14
Connecting your CD player
Connecting a stereo system ....................... 15
Connecting to a power source
Using the rechargeable batteries ................ 16
Using the dry batteries ............................... 18
Notes on the power source ........................ 18
Additional information
Precautions ................................................ 19
Maintenance .............................................. 19
Troubleshooting ......................................... 20
Specifications ............................................ 22
Accessories (supplied/optional) ................ 23

4
Getting started
Locating the controls
For details, see pages in parentheses.
CD player (front)
CD player (inside)
qh i(headphones)
jack (page 6)
qk Battery compartment
(page 16)
qa Display
(pages 7, 10 - 13)
qd HOLD switch
(page 13)
qf OPEN switch
(page 6)
qs REPEAT/ENTER
button (pages 9 - 11)
9DC IN 4.5 V (external
power input) jack
(pages 6, 16)
7x(stop)/CHG (charge)
button (pages 7, 14, 16)
qj G-PROTECTION
switch
(page 12)
qg LINE OUT
jack (page 15)
q; Strap holes
3VOL (volume) +*
button (page 6)
1PLAY MODE
button
(pages 9 - 11)
2SOUND button
(pages 12, 13)
8N* (play)/>
(AMS/search) button
(pages 6, 7, 11)
4.(AMS/
search) button
(pages 7, 11)
6X(pause) button
(page 7)
*The button has a tactile dot.
5VOL (volume) –
button (page 6)

5
Remote control (for the models supplied with the remote control)
Note
Use only the supplied remote control. You cannot operate this CD player with the remote control supplied with
other CD players.
Getting started
wd HOLD switch
(rear)
(page 13)
ws N* (play)/>
(AMS/search) button
(pages 6, 7, 11)
wa x(stop) button
(pages 7, 14)
ql .(AMS/search)
button
(pages 7, 11)
w; VOL (volume)
+*/–buttons
(page 6)
*The button has a tactile dot.

6
3. Play a CD.
Adjust the volume by
pressing VOL + or –.
Press N/>.
Playing a CD
You can also use rechargeable batteries or dry batteries as a power source.
1. Connect your CD player.
1Connect the AC power adaptor.
2Connect the headphones/earphones.
For models supplied with the remote
control
•Connect the plug of the headphones/
earphones to the remote control.
•Connect the headphones/earphones to
the remote control firmly. A loose
connection may cause noise during
playback.
to i(headphones)
Headphones
or
Earphones
to an AC outlet
to DC IN 4.5V
N/>
button
AC power
adaptor
or
2. Insert a CD.
1Slide OPEN to open the lid.
2Place the CD on the tray and close
the lid.
Label
side up
OPEN
switch

7
To Press
Play (from the point you stopped) N/>
Play (from the first track) N/>for 2 seconds or more
Pause (on the CD player only) X
Stop x/CHG (xfor the remote control)*2
Find the beginning of the current track (AMS*1).once quickly*2
Find the beginning of the previous tracks (AMS) .repeatedly*2, *3
Find the beginning of the next track (AMS) N/>once quickly*2, *3
Find the beginning of the succeeding tracks (AMS) N/>repeatedly*2, *3
Go backwards quickly Hold down .*2
Go forward quickly Hold down N/>*2
*1Automatic Music Sensor
*2These operations can be done during both play and pause.
*3After you have played the last track, you can return to the beginning of the first track by pressing N/>.
Similarly, if you are at the first track, you can locate the last track by pressing ..
About the display
•When you press N/>after changing the CD or turning off and on the player, the total
number of tracks in the CD and total playing time appear for about two seconds.
•During play, the track number and the elapsed playing time of the current track appear.
•During pause, the elapsed playing time flashes.
If the volume level does not increase
•If “AVLS”flashes in the display, hold down SOUND until “AVLS”disappears from the
display. For details, see “Protecting your hearing (AVLS).”
•If the headphones are connected to the LINE OUT jack, connect them to the
i(headphones) jack.
Playing a CD
(Continued)

8
About CD-Rs/CD-RWs
This CD player can play CD-Rs/CD-RWs recorded in the CD-DA format*, but playback
capability may vary depending on the quality of the disc and the condition of the recording
device.
* CD-DA is the abbreviation for Compact Disc Digital Audio. It is a recording standard used for Audio CDs.
Removing the CD
Remove the CD while pressing the pivot in the center of the tray.

9
Playback options
You can enjoy various ways of playback using PLAY MODE and REPEAT/ENTER.
PLAY MODE button
Each time you press the button, you can
change the playback mode.
No indication
(Normal play)
“1”
(Play a single track)
“SHUF”
(Play tracks in random order)
“PGM”
(Play tracks in your favorite order)
N/>button
REPEAT/ENTER button
REPEAT
You can repeat play mode that was
selected using PLAY MODE.
ENTER
You can select tracks for PGM play
mode.
.button
x/CHG button
(Continued)
Playback options

10
Playing tracks repeatedly (Repeat play)
You can play tracks repeatedly in normal, single, shuffle and PGM play modes.
During playback, press REPEAT/ENTER.
Playing a single track (Single play)
During playback, press PLAY MODE
repeatedly until “1” appears.
Playing tracks in random order (Shuffle play)
During playback, press PLAY MODE
repeatedly until “SHUF” appears.

11
Playing tracks in your favorite order (PGM play)
You can program the CD player to play up to 64 tracks in your favorite order.
1During playback, press PLAY MODE
repeatedly until “PGM” appears.
2Press .or N/>to select a
track.
3Press REPEAT/ENTER quickly (less
than 0.5 second) to enter the
selected track.
“00”appears and the playing order increases
by one.
4Repeat steps 2 and 3 to select the tracks in your favorite order.
5Hold down REPEAT/ENTER until play starts.
To check the program
During programming:
Press REPEAT/ENTER repeatedly before step 5.
During the PGM play:
Press PLAY MODE repeatedly until “PGM”flashes, then press REPEAT/ENTER.
Each time you press REPEAT/ENTER, the track number appears.
Notes
•When you finish entering the 64th track in step 3, the first selected track appears in the display.
•If you select more than 64 tracks, the first selected tracks are erased.
Track number
Playing order
Playback options

12
Emphasizing the bass
sound (SOUND)
You can emphasize the bass-boosted sound.
Press SOUND to select “BASS ”or
“BASS .”
“BASS ”enhances the bass sound
more than “BASS .”
Note
If the sound is distorted when using the SOUND
function, turn down the volume.
The selected sound mode is displayed.
B Available features
G-PROTECTION
function
The G-PROTECTION function has been
developed to provide excellent protection
against sound skipping while jogging. This
function provides a higher level of shock
protection than the traditional one.
Set G-PROTECTION (under the lid) to
“ON.”
While jogging, be sure to hold your CD
player with the OPEN switch facing upward.
To turn off the G-PROTECTION
function
Set G-PROTECTION to “OFF.”
Note
Sound may skip:
–if the CD player receives stronger continuous
shock than expected,
–if a dirty or scratched CD is played or
–when using poor-quality CD-Rs/CD-RWs or
if there is a problem with the recording device
or application software.
BASS
BASS
No indication
(Normal play)

13
Protecting your hearing
(AVLS)
The AVLS (Automatic Volume Limiter
System) function keeps down the maximum
volume to protect your hearing.
Press and hold SOUND until “AVLS”
appears in the display.
When you turn up the volume to
“*”
“AVLS”flashes and you cannot turn up the
volume any more. If you want to turn up the
volume to more than “*,”hold down
SOUND until “AVLS”disappears from the
display.
* For the customers in France
This level is set to “.”
Flashes when the volume is turned up
and beyond a certain level.
Locking the controls
(HOLD)
You can lock the controls on your CD player
to prevent accidental button presses.
Slide HOLD in the direction of the
arrow.
You can use the HOLD function with both
the CD player and remote control. You can
still operate your CD player using the remote
control when HOLD on the remote control is
set to off.
To unlock the controls
Slide HOLD in the opposite direction of the
arrow.
Displayed when the HOLD function is
activated.
Available features

14
Turning off the
operation beep sound
You can turn off the beep sound that is heard
from your headphones/earphones when you
operate your CD player.
1Remove the power source (AC
power adaptor, rechargeable
batteries or dry batteries) from the
CD player.
2Connect the power source while
pressing x/CHG on the CD player
or xon the remote control.
To turn on the beep sound
Remove the power source and then connect
the power source without pressing x/CHG
or x.

15
Connecting a stereo
system
You can listen to CDs through a stereo
system and record CDs on a cassette tape.
For details, see the instruction manual that
comes with the connected device.
Be sure to turn off all connected devices
before making connections.
Notes
•Before you play a CD, turn down the volume of
the connected device to avoid damaging the
connected speakers.
•Use the AC power adaptor for recording. If you
use the rechargeable batteries or dry batteries as a
power source, batteries may become completely
depleted during recording.
•Adjust the volume properly on the connected
device so that the sound will not be distorted.
When using the connecting cord
If the sound is distorted, connect the device
to the ijack.
About the G-PROTECTION and
SOUND functions when using the
connecting cord
•To record high quality CD sound, set the
G-PROTECTION switch to “OFF.”
•The SOUND function works only on the
output sound from the ijack and not work
on the output sound from the LINE OUT
jack.
Stereo system,
cassette recorder,
radio cassette
recorder, etc.
B Connecting your CD player
Connecting cord
Left (white)
Right (red)
to LINE OUT
Connecting your CD player

16
You can use the following power sources:
•Rechargeable batteries
•AC power adaptor (see “Playing a CD”)
•LR6 (size AA) alkaline batteries
For the battery life and charging time of the
rechargeable batteries, see “Specifications.”
Using the rechargeable
batteries
Charge the rechargeable batteries before
using them for the first time. You can use
only the following rechargeable batteries for
your CD player.
•NC-WMAA
•NH-WM2AA (NH-WMAA ×2)
1Open the battery compartment lid
inside your CD player.
2Insert two rechargeable batteries
by matching the 3to the diagram
in the battery compartment and
close the lid until it clicks into
place.
3Connect the AC power adaptor to
the DC IN 4.5 V jack of your CD
player and an AC outlet, then
press x/CHG to start charging.
The CD player charges the batteries. The
“CHG”indicator turns on in the display,
and the indicator sections of light
up in succession. When the batteries are
completely charged, the “CHG”and
indicators get turned off.
If you press x/CHG after the charge has
already been completed, the
indicator flashes and “Full”appears in
the display.
4Disconnect the AC power adaptor.
B Connecting to a power source
to an AC outlet
to DC IN 4.5 V
AC power adaptor
x/CHG button

17
To remove the rechargeable batteries
Remove the batteries as illustrated below.
When to charge the rechargeable
batteries
You can check the remaining power of the
batteries in the display.
Battery power is full.
Battery power is getting low.
Battery power is low.
Lo batt* Batteries are depleted.
* Beep sounds.
To keep the original battery capacity for a
long time, charge the batteries only when
they are completely depleted.
Notes
•The indicator sections of roughly shows
the remaining battery power. One section does
not always indicate one-fourth of the battery
power.
•Depending on operating conditions, the indicator
sections of may increase or decrease.
When to replace the rechargeable
batteries
If the battery life becomes shorter by about
half, replace the batteries with new
rechargeable batteries.
Note on the rechargeable batteries
If the battery is new or has not been used for
a long time, it may not be charged
completely until you charge and discharge it
several times.
Note on carrying the rechargeable
batteries
Use the supplied battery carrying case to
prevent unexpected heat. If the rechargeable
batteries and the metallic objects get
contacted, heat or fire may occur due to a
short circuit.
To attach the battery compartment lid
If the battery compartment lid is detached by
an accidental drop, excessive force, etc.,
attach it as illustrated below.
r
r
r
○○○○
r
○○○○
r
Connecting to a power source

18
Using the dry batteries
Use only the following dry battery type for
your CD player:
•LR6 (size AA) alkaline batteries
Note
Be sure to remove the AC power adaptor when
using the dry batteries.
1Open the battery compartment lid.
2Insert two LR6 (size AA) batteries
by matching the 3to the diagram
in the battery compartment.
To remove the batteries
Remove the batteries in the same way as
rechargeable batteries.
When to replace the batteries
You can check the remaining power of the
batteries in the display.
Battery power is full.
Battery power is getting low.
Battery power is low.
Lo batt* Batteries are depleted.
* Beep sounds.
When the batteries are depleted, replace both
batteries with new ones.
r
r
r
○○○○
Notes on the power
source
Disconnect all power sources when the CD
player is not used.
On AC power adaptor
•Use only the AC power adaptor supplied or
recommended in “Accessories (supplied/
optional).”Do not use any other AC power
adaptor. It may cause a malfunction.
Polarity of the plug
•When disconnecting the AC power adaptor
from the AC outlet, grasp the adaptor
itself. Do not pull it by the cord.
•Do not touch the AC power adaptor with
wet hands.
On rechargeable batteries
and dry batteries
•Do not charge the 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 rechargeable batteries with dry
batteries.
•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.
r
○○○○
r

19
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 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 handling CDs
•To keep the CD clean, handle it by its
edge. Do not touch the surface.
•Do not stick paper or tape onto the CD.
•Do not expose the CD to direct sunlight or
heat sources such as hot air ducts. Do not
leave the CD in a car parked under direct
sunlight.
On headphones/earphones
Road safety
Do not use headphones/earphones 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/earphones 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.
Maintenance
To clean the casing
Use a soft cloth slightly moistened in water
or a mild detergent solution. Do not use
alcohol, benzine or thinner.
B Additional information
Not these ways
Additional information

20
Troubleshooting
Should any problem persist after you have checked these symptoms, consult your nearest Sony
dealer.
Symptom
The volume does not increase
even if you press the VOL +
button repeatedly.
Cannot adjust the volume.
No sound, or noise is heard.
The playing time is too short
when powered with the dry
batteries.
The playing time is too short
when powered with the
rechargeable batteries.
“Lo batt”or “00”appears in
the display. The CD does not
play.
“HI dc In”appears in the
display.
The CD does not play or
“no dISC”appears in the
display when a CD is placed
in the CD player.
“Hold”appears in the
display when you press a
button, and the CD does not
play.
Cause and/or corrective actions
cPress and hold SOUND until “AVLS”disappears from the display.
(page 13)
cThe headphones/earphones are connected to the LINE OUT jack.
Connect them to the i(headphones) jack. (page 6)
cThe headphones/earphones are connected to the LINE OUT jack.
Connect them to the i(headphones) jack. (page 6)
cConnect the plugs firmly. (page 6)
cPlugs are dirty. Clean the plugs with a dry soft cloth periodically.
cCheck that you are using alkaline batteries and not manganese
batteries. (page 18)
cReplace the batteries with new LR6 (size AA) alkaline batteries.
(page 18)
cCharge and discharge the rechargeable batteries several times.
(pages 16, 17)
cThe rechargeable batteries are used up completely. Charge the
batteries. (page 16)
cReplace the batteries with new LR6 (size AA) alkaline batteries.
(page 18)
cUse only the AC power adaptor or car battery cord in “Accessories
(supplied/optional).”(page 23)
cRemove all power sources, then insert the batteries or connect the
AC power adaptor again. (pages 6, 16 - 18)
cThe buttons are locked. Slide the HOLD switch back. (page 13)
cThe CD is dirty or defective. (page 19)
cCheck that the CD is inserted with the label side up. (page 6)
cMoisture condensation has occurred.
Leave the CD player aside for several hours until the moisture
evaporates.
cClose the lid of the battery compartment firmly.
(page 16)
cMake sure the batteries are inserted correctly. (pages 16 - 18)
cConnect the AC power adaptor to an AC outlet securely. (page 6)
cThe CD-R/CD-RW was not finalized. Finalize the CD-R/CD-RW
with the recording device.
cThere is a problem with the quality of the CD-R/CD-RW,
recording device, or application software.
cThe buttons are locked. Slide the HOLD switch back. (page 13)