Sony Portable CD Player D EJ751 User Manual

3-237-145-21 (1)  
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).”  
WALKMAN” is a trademark of  
Sony Corporation.  
D-EJ751  
© 2002 Sony Corporation  
 
Table of Contents  
Connecting to a power source  
Getting started  
Using the rechargeable batteries ................ 15  
Using the dry batteries ............................... 17  
Notes on the power source ........................ 17  
Locating the controls ................................... 4  
Playing a CD  
1. Connect your CD player. ......................... 5  
2. Insert a CD. ............................................. 5  
3. Play a CD. ............................................... 5  
Additional information  
Precautions ................................................ 18  
Maintenance .............................................. 18  
Troubleshooting ......................................... 19  
Specifications ............................................ 21  
Accessories (supplied/optional) ................ 22  
Playback options  
Playing tracks repeatedly (Repeat play) ...... 9  
Playing a single track (Single play) ............. 9  
Playing tracks in random order  
(Shuffle play)........................................... 9  
Playing tracks in your favorite order  
(PGM play)............................................ 10  
Available features  
G-PROTECTION function ........................ 11  
Emphasizing the bass sound (SOUND) .... 11  
Protecting your hearing (AVLS) ................ 12  
Locking the controls (HOLD) ................... 12  
Turning off the operation beep sound........ 13  
Connecting your CD player  
Connecting a stereo system ....................... 14  
3
 
Getting started  
Locating the controls  
For details, see pages in parentheses.  
CD player (front)  
1 PLAY MODE  
button  
(pages 8 - 10)  
2 SOUND button  
(pages 11, 12)  
9 DC IN 4.5 V (external  
power input) jack  
(pages 5, 15)  
q; Strap holes  
3 VOL (volume) +*  
qa Display  
button (page 5)  
(pages 6, 9 - 12)  
4 . (AMS/  
search) button  
(pages 6, 10)  
qs REPEAT/ENTER  
button (pages 8 - 10)  
qd HOLD switch  
5 VOL (volume) –  
(page 12)  
button (page 5)  
6 X (pause) button  
qf OPEN switch  
(page 6)  
(page 5)  
7 x (stop)/CHG (charge)  
qg LINE OUT  
button (pages 6, 13, 15)  
jack (page 14)  
8 N* (play)/>  
(AMS/search) button  
(pages 5, 6, 10)  
qh i (headphones)  
jack (page 5)  
CD player (inside)  
qj G-PROTECTION  
switch  
(page 11)  
qk Battery compartment  
(page 15)  
*The button has a tactile dot.  
4
 
Playing a CD  
You can also use rechargeable batteries or dry batteries as a power source.  
to an AC outlet  
1. Connect your CD player.  
to DC IN 4.5V  
1 Connect the AC power adaptor.  
AC power  
adaptor  
2 Connect the headphones/earphones.  
N/>  
button  
to i (headphones)  
2. Insert a CD.  
1 Slide OPEN to open the lid.  
Headphones  
or  
Earphones  
OPEN  
switch  
3. Play a CD.  
Press N/>.  
2 Place the CD on the tray and close  
the lid.  
Label  
side up  
Adjust the volume by  
pressing VOL + or .  
5
 
To  
Press  
Play (from the point you stopped)  
Play (from the first track)  
N/>  
N/> for 2 seconds or more  
Pause (on the CD player only)  
X
Stop  
x/CHG*2  
Find the beginning of the current track (AMS*1)  
Find the beginning of the previous tracks (AMS)  
Find the beginning of the next track (AMS)  
Find the beginning of the succeeding tracks (AMS)  
Go backwards quickly  
.once quickly*2  
3
.repeatedly*2,  
*
N/> once quickly*2,  
N/> repeatedly*2,  
Hold down .*2  
*
3
3
*
Go forward quickly  
Hold down N/>*2  
*1 Automatic Music Sensor  
*2 These operations can be done during both play and pause.  
*3 After 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 AVLSflashes in the display, hold down SOUND until AVLSdisappears 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.  
6
 
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.  
7
 
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)  
REPEAT/ENTER button  
“SHUF”  
(Play tracks in random order)  
REPEAT  
You can repeat play mode that was  
selected using PLAY MODE.  
“PGM”  
(Play tracks in your favorite order)  
ENTER  
You can select tracks for PGM play  
mode.  
. button  
N/> button  
x/CHG button  
8
 
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.  
9
 
Playing tracks in your favorite order (PGM play)  
You can program the CD player to play up to 64 tracks in your favorite order.  
During playback, press PLAY MODE  
repeatedly until “PGM” appears.  
1
Press . or N/> to select a  
track.  
2
Track number  
Playing order  
Press REPEAT/ENTER quickly (less  
than 0.5 seconds) to enter the  
selected track.  
3
00appears and the playing order increases  
by one.  
Repeat steps 2 and 3 to select the tracks in your favorite order.  
Hold down REPEAT/ENTER until play starts.  
4
5
To check the program  
During programming:  
Press REPEAT/ENTER repeatedly before step 5.  
During the PGM play:  
Press PLAY MODE repeatedly until PGMflashes, 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.  
10  
 
B Available features  
G-PROTECTION  
function  
Emphasizing the bass  
sound (SOUND)  
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.  
You can emphasize the bass-boosted sound.  
Press SOUND to select BASS  
or  
BASS  
.”  
No indication  
(Normal play)  
Set G-PROTECTION (under the lid) to  
ON.”  
BASS  
BASS  
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.”  
The selected sound mode is displayed.  
Note  
BASS  
more than BASS  
enhances the bass sound  
.”  
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.  
Note  
If the sound is distorted when using the SOUND  
function, turn down the volume.  
11  
 
Protecting your hearing  
(AVLS)  
Locking the controls  
(HOLD)  
The AVLS (Automatic Volume Limiter  
System) function keeps down the maximum  
volume to protect your hearing.  
You can lock the controls on your CD player  
to prevent accidental button presses.  
Slide HOLD in the direction of the  
arrow.  
Press and hold SOUND until AVLS”  
appears in the display.  
Flashes when the volume is turned up  
and beyond a certain level.  
Displayed when the HOLD function is  
activated.  
When you turn up the volume to “  
AVLSflashes and you cannot turn up the  
volume any more. If you want to turn up the  
volume to more than ,hold down  
SOUND until AVLSdisappears from the  
display.  
To unlock the controls  
Slide HOLD in the opposite direction of the  
arrow.  
12  
 
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.  
Remove the power source (AC  
1
power adaptor, rechargeable  
batteries or dry batteries) from the  
CD player.  
Connect the power source while  
pressing x/CHG on the CD player.  
2
To turn on the beep sound  
Remove the power source and then connect  
the power source without pressing x/CHG.  
13  
 
B Connecting your CD player  
Notes  
Connecting a stereo  
system  
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.  
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.  
When using the connecting cord  
If the sound is distorted, connect the device  
to the i jack.  
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 i jack and not work  
on the output sound from the LINE OUT  
jack.  
to LINE OUT  
Connecting cord  
Right (red)  
Left (white)  
Stereo system,  
cassette recorder,  
radio cassette  
recorder, etc.  
14  
 
B Connecting to a power source  
You can use the following power sources:  
Rechargeable batteries  
AC power adaptor (see Playing a CD)  
LR6 (size AA) alkaline batteries  
Connect 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.  
3
For the battery life and charging time of the  
rechargeable batteries, see Specifications.”  
x/CHG button  
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.  
to DC IN 4.5 V  
NC-WMAA  
NH-WM2AA (NH-WMAA × 2)  
Open the battery compartment lid  
inside your CD player.  
1
AC power adaptor  
to an AC outlet  
The CD player charges the batteries. The  
CHGindicator turns on in the display,  
and the indicator sections of  
light  
up in succession. When the batteries are  
completely charged, the CHGand  
indicators get turned off.  
If you press x/CHG after the charge has  
already been completed, the  
Insert two rechargeable batteries  
2
by matching the 3 to the diagram  
in the battery compartment and  
close the lid until it clicks into  
place.  
indicator flashes and Fullappears in  
the display.  
Disconnect the AC power adaptor.  
4
(Continued)  
15  
 
When to replace the rechargeable  
batteries  
Using the rechargeable batteries  
If the battery life becomes shorter by about  
half, replace the batteries with new  
rechargeable batteries.  
To remove the rechargeable batteries  
Remove the batteries as illustrated below.  
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.  
When to charge the rechargeable  
batteries  
You can check the remaining power of the  
batteries in the display.  
To attach the battery compartment lid  
Battery power is full.  
If the battery compartment lid is detached by  
an accidental drop, excessive force, etc.,  
attach it as illustrated below.  
r
r
Battery power is getting low.  
r
r
Battery power is low.  
r
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.  
16  
 
Using the dry batteries  
Use only the following dry battery type for  
your CD player:  
Notes on the power  
source  
Disconnect all power sources when the CD  
player is not used.  
LR6 (size AA) alkaline batteries  
Note  
On AC power adaptor  
Be sure to remove the AC power adaptor when  
using the dry batteries.  
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.  
Open the battery compartment lid.  
1
Polarity of the plug  
Insert two LR6 (size AA) batteries  
by matching the 3 to the diagram  
in the battery compartment.  
2
To remove the batteries  
Remove the batteries in the same way as  
rechargeable batteries.  
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.  
When to replace the batteries  
You can check the remaining power of the  
batteries in the display.  
On rechargeable batteries  
and dry batteries  
Battery power is full.  
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.  
r
r
Battery power is getting low.  
r
r
Battery power is low.  
r
Lo batt* Batteries are depleted.  
* Beep sounds.  
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.  
When the batteries are depleted, replace both  
batteries with new ones.  
17  
 
B Additional information  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
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.  
Not these ways  
18  
 
Troubleshooting  
Should any problem persist after you have checked these symptoms, consult your nearest Sony  
dealer.  
Symptom  
Cause and/or corrective actions  
The volume does not increase  
even if you press the VOL +  
button repeatedly.  
c
Press and hold SOUND until AVLSdisappears from the display.  
(page 12)  
The headphones/earphones are connected to the LINE OUT jack.  
Connect them to the i (headphones) jack. (page 5)  
c
Cannot adjust the volume.  
c
The headphones/earphones are connected to the LINE OUT jack.  
Connect them to the i (headphones) jack. (page 5)  
No sound, or noise is heard.  
c
c
Connect the plugs firmly. (page 5)  
Plugs are dirty. Clean the plugs with a dry soft cloth periodically.  
The playing time is too short  
when powered with the dry  
batteries.  
c
Check that you are using alkaline batteries and not manganese  
batteries. (page 17)  
Replace the batteries with new LR6 (size AA) alkaline batteries.  
(page 17)  
c
The playing time is too short  
when powered with the  
rechargeable batteries.  
c
Charge and discharge the rechargeable batteries several times.  
(pages 15, 16)  
Lo battor 00appears in  
the display. The CD does not  
play.  
c
c
The rechargeable batteries are used up completely. Charge the  
batteries. (page 15)  
Replace the batteries with new LR6 (size AA) alkaline batteries.  
(page 17)  
HI dc Inappears in the  
display.  
c
c
Use only the AC power adaptor or car battery cord in Accessories  
(supplied/optional).(page 22)  
Remove all power sources, then insert the batteries or connect the  
AC power adaptor again. (pages 5, 15 - 17)  
The CD does not play or  
no dISCappears in the  
display when a CD is placed  
in the CD player.  
c
c
c
c
The buttons are locked. Slide the HOLD switch back. (page 12)  
The CD is dirty or defective. (page 18)  
Check that the CD is inserted with the label side up. (page 5)  
Moisture condensation has occurred.  
Leave the CD player aside for several hours until the moisture  
evaporates.  
c
Close the lid of the battery compartment firmly.  
(page 15)  
c
c
c
Make sure the batteries are inserted correctly. (pages 15 - 17)  
Connect the AC power adaptor to an AC outlet securely. (page 5)  
The CD-R/CD-RW was not finalized. Finalize the CD-R/CD-RW  
with the recording device.  
c
c
There is a problem with the quality of the CD-R/CD-RW,  
recording device, or application software.  
Holdappears in the  
display when you press a  
button, and the CD does not  
play.  
The buttons are locked. Slide the HOLD switch back. (page 12)  
(Continued)  
19  
 
Troubleshooting  
Cause and/or corrective action  
Symptom  
c
During stop, press  
x/CHG. (page 15)  
The CD player does not start  
charging.  
c
The resume function is working. To start play from the first track,  
press N/> for 2 seconds or more, or open the lid of the CD  
player. Or remove all power sources, then insert the batteries or  
connect the AC power adaptor again.  
Playback starts from the  
point you stopped. (resume  
function)  
(pages 5, 6, 15, 17)  
c
c
Close the lid of the battery compartment firmly. (page 15)  
Rustling noise is heard from  
the CD.  
When closing the lid of the  
CD player, the CD starts to  
rotate.  
The CD player is reading the information on the CD. It is not  
malfunctioning.  
20  
 
Battery life* (approx. hours)  
(When you use the CD player on a flat and stable  
surface.)  
Specifications  
Playing time varies depending on how the CD  
player is used.  
System  
Compact disc digital audio system  
When using  
G-PROTECTION function  
Laser diode properties  
Material: GaAlAs  
on  
off  
Wavelength: λ = 780 nm  
Emission duration: Continuous  
Two NC-WMAA  
(charged for  
12  
10  
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.)  
about 3 hours**)  
NH-WM2AA  
(charged for  
about 5 hours**)  
25  
48  
22  
38  
D-A conversion  
1-bit quartz time-axis control  
Two Sony alkaline  
batteries LR6(SG)  
(produced in Japan)  
Frequency response  
20 - 20 000 Hz +21 dB (measured by JEITA CP-  
307)  
* Measured value by the standard of JEITA (Japan  
Electronics and Information Technology  
Industries Association).  
** Charging time varies depending on how the  
rechargeable battery is used.  
Output (at 4.5 V input level)  
Line output (stereo minijack)  
Output level 0.7 V rms at 47 kΩ  
Recommended load impedance over 10 kΩ  
Headphones (stereo minijack)  
Operating temperature  
5°C - 35°C (41°F - 95°F)  
Approx. 5 mW + Approx. 5 mW at 16 Ω  
Dimensions (w/h/d) (excluding  
projecting parts and controls)  
Approx. 135.5 × 29.2 × 137.4 mm  
(5 38 × 1 316 × 5 12 in.)  
Power requirements  
For the area code of the model you  
purchased, check the upper left side of the  
bar code on the package.  
Two Sony NC-WMAA rechargeable  
batteries: 2.4 V DC  
Mass (excluding accessories)  
Approx. 185 g (6.6 oz.)  
Sony NH-WM2AA rechargeable batteries:  
2.4 V DC  
Two LR6 (size AA) batteries: 3 V DC  
AC power adaptor (DC IN 4.5 V jack):  
U2/U/CA2/E92/MX2/TW2/BR3 model:  
120 V, 60 Hz  
Design and specifications are subject to change  
without notice.  
CED/CET/CEW/CEX/CE7/EE/EE1/E13/G5/  
G6/G7/G8/BR1 model:  
220 - 230 V, 50/60 Hz  
CEK/3CE7 model: 230 - 240 V, 50 Hz  
AU2 model: 240 V, 50 Hz  
JE.W/E33/EA3/KR4 model: 100 - 240 V,  
50/60 Hz  
HK2 model: 220 V, 50/60 Hz  
AR1/CNA model: 220 V, 50 Hz  
21  
 
Optional accessories  
Accessories  
(supplied/optional)  
AC power adaptor  
AC-E45HG  
Active speaker system  
SRS-T55  
SRS-Z500  
Supplied accessories  
For the area code of the location in which you  
purchased the CD player, check the upper left side  
of the bar code on the package.  
Car battery cord  
DCC-E345  
Car battery cord with car connecting pack  
DCC-E34CP  
AC power adaptor (1)  
Headphones/earphones (1)  
Car connecting pack  
Connecting cord  
CPA-9C  
RK-G129  
RK-G136  
Rechargeable battery  
Earphones  
NH-WM2AA  
MDR-E848LP  
MDR-EX70LP  
Headphones  
MDR-A44L  
MDR-A110LP  
When using optional headphones, use only  
headphones with stereo miniplugs. You  
cannot use headphones with micro plugs.  
Stereo miniplug  
Micro plug  
Your dealer may not handle some of the  
accessories listed above. Please ask the  
dealer for detailed information about the  
accessories in your country.  
22  
 
 
Sony Corporation  
 

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