Sony MZ-E55 Leaflet

 A

Before using the supplied rechargeable battery for the first time,
charge it.  Other choices are dry batteries and house current (see
“Power sources”). The player automatically switches to play the stereo
or monaural sound according to the recorded sound.

Install the supplied rechargeable battery NH-9WM to the
supplied battery charger with correct polarity, and connect to a
wall outlet.
The charger lamp goes off when charging is finished.

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

Listening for many hours at maximum
volume may damage your hearing.

IN NO EVENT SHALL SELLER BE LIABLE
FOR ANY DIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OF ANY
NATURE, OR LOSSES OR EXPENSES
RESULTING FROM ANY DEFECTIVE
PRODUCT OR THE USE OF ANY
PRODUCT.

Operating instructions
Mode d’emploi (au dos)

3-865-053-22(1)

•

•

2 Insert an MD with the label facing up

1 Slide OPEN and

Sony Corporation ©1998 Printed in Japan

}

]

2 Insert the battery with

1 Slide open the battery

z

B

You can play tracks repeatedly in three ways-
-all repeat, single repeat, and shuffle repeat.

Press PLAY MODE while the player is
playing an MD.
Each time you press PLAY MODE, the play
mode indication changes as follows.

To know the track name and time C

Press DISPLAY on the remote control while
the player is playing an MD.
Each time you press DISPLAY, the display
changes as follows.

.

.

Note
Disc and track names appear only with MDs that
have been electronically labeled.

To lock the controls D

To prevent the buttons from being
accidentally operated when you carry the
player, use this function.

Slide the HOLD switch on the main unit in
the direction of the c to lock the controls of
the unit.
Slide the HOLD switch on the remote control
in the direction of the c to lock the controls
of the remote control.

To emphasize bass (DIGITAL MEGA
BASS) E

The DIGITAL MEGA BASS function
intensifies low frequency sound for richer
quality audio reproduction.

Slide DIGITAL MEGA BASS.
Choose 1 (slight effect) or 2 (strong effect).
To cancel the effect, set DIGITAL MEGA
BASS to 0.

Note
If the sound becomes distorted when
emphasizing bass, turn down the volume.

To protect your hearing (AVLS) F

The AVLS (Automatic Volume Limiter
System) function keeps down the maximum
volume to protect your ears.

Set AVLS to LIMIT.
The volume is kept at a moderate level, even
if you try to turn the volume above the
limited level.

3 Press (•+ (turn the control to

(•+ on the remote control).

The player starts to play the first track.
When using the remote control, a short
beep sounds in the headphones.

When to replace or charge the batteries
You can check the battery condition with the
battery indication which is displayed while using
the player.

∫

Battery power decreasing

v

b

Weak batteries. Replace/recharge the
batteries

v

n

The batteries have gone out.“LoBATT”
flashes in the display of the remote
control, and the power goes off.

Battery life*

Ni-MH
rechargeable
battery (NH-9WM)

One LR6 (size AA)
alkaline battery

One size AA(LR6)
alkaline battery
and a Ni-MH
rechargeable
battery (NH-9WM)

*

The battery life may be shorter due to
operating conditions and the temperature of
the location.

H

Before using the player, remove the
rechargeable battery if it is installed.

Attach the supplied battery case to the
player.

Connect the AC-E15L AC power adaptor
(not supplied) to the DC IN 1.5V jack of
the player.

Connect the AC power adaptor to a wall
outlet.

Note
The battery indication ı is  displayed while
using the AC power adaptor.

z

•

Do not put any foreign objects in the DC IN
1.5 V jack.

•

For use in your house: Use the AC power
adaptor AC-E15L (not supplied). Do not
use any other AC power adaptor since it
may cause the player to malfunction.

•

The player is not disconnected from the AC
power source (mains) as long as it is
connected to the wall outlet, even if the
player itself has been turned off.

•

If you are not going to use this player for a
long time, be sure to disconnect the power
supply (AC power adaptor, dry battery, or
rechargeable battery). To remove the AC
power adaptor from the wall outlet, grasp
the adaptor plug itself; never pull the cord.

• Be sure to use the supplied battery charger.
• Charging time may vary depending on the

battery condition.

• When you use the battery for the first time

or after a long period of disuse, the battery
life may be shorter. In this case, charge and
discharge the battery several times. The
battery life will be restored.

• If the rechargeable battery capacity

becomes half the normal life, replace it with
a new one.

• Remove the rechargeable battery when the

unit is not to be used for a long time. Do
not carry the rechargeable battery in your
pocket or a bag, etc., with metallic objects
such as key rings.

• Do not short-circuit the battery case

attachment terminals on the main unit with
metallic objects, etc., when the rechargeable
battery is inserted, as this may cause heat
and can be dangerous.

• When carrying the player in a bag, be sure

to put it in the supplied carrying pouch.

•

Heat may build up in the player if it is used
for an extended period of time. In this case,
leave the player to cool down.

•

Never use the player where it will be
subjected to extremes of light, temperature,
moisture or vibration.

•

Never wrap the player in anything when it
is being used with the AC power adaptor.
Heat build-up in the player may cause
malfunction or injury.

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 player
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 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 of the people around you.

•

Do not break open the shutter.

•

Do not place the cartridge where it will be
subjected to light, temperature, moisture or
dust.

•

Clean the player casing with a soft cloth
slightly moistened with water or a mild
detergent solution. 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.

•

Wipe the disc cartridge with a dry cloth to
remove dirt.

•

Dust on the lens may prevent the unit from
operating properly. Be sure to close the disc
compartment lid after inserting or ejecting an
MD.

Incorrect battery usage may lead to leakage of
battery fluid or bursting batteries. To prevent
such accidents, observe the following
precautions:

•

Install batteries with the + and – poles
aligned correctly.

•

Do not try to recharge dry batteries.

•

When the player is not to be used for a
long time, be sure to remove the batteries.

•

If a battery leak should develop, carefully
and thoroughly wipe away battery fluid
from the battery compartment before
inserting new ones.

• Do not carry the dry battery in your pocket

or a bag, etc., with metallic objects such as
key rings. The terminals of the battery or
the battery carrying case may heat up from
a short-circuit and can be dangerous.

Incorrect battery usage may lead to leakage of
battery fluid or bursting batteries. To prevent
such accidents, observe the following
precautions:

•

Install the batteries with the + and – poles
aligned correctly.

•

Do not try to recharge dry batteries.

•

When the player is not to be used for a
long time, be sure to remove the batteries.

•

If a battery leak should develop, carefully
and thoroughly wipe away battery fluid
from the battery compartment before
inserting new ones.

The player gives out mechanical noise while
operating, which is caused by the power-
saving system of the player and it is not a
trouble.

If you have any questions or problems
concerning your player, please consult your
nearest Sony dealer.

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

• You tried to play with no disc in the

player (“No DISC” flashes).
b Insert an MD.

• The remote control is locked.

b Slide HOLD against the arrow to

unlock the remote control.

• Moisture has condensed inside the

player.
b Take the MD out and leave the

player in a warm place for several
hours until the moisture evaporates.

• The rechargeable battery or dry battery

is weak (n“LoBATT” flashes).
b Replace the dry battery or recharge

the battery.

• The rechargeable battery or dry battery

has been installed incorrectly.
b Install the battery correctly.

• An MD with no recording on it is

inserted (“BLANK” flashes).
b Insert a recorded MD.

• The player cannot read the disc (it’s

scratched or dirty) (“ERROR” flashes
on the remote control).
b Reinsert or replace the disc.

• While operating, the player received a

mechanical shock, too much static,
abnormal power voltage caused by
lightning, etc.
b Restart the operation as follows.

1 Disconnect all the power sources.
2 Leave the player for about 30

seconds.

3 Connect the power source.

 •The player is set to the repeat mode

(“f“ is displayed).
b Press PLAY MODE repeatedly until

“f“  disappears, then start
playing.

• Disc playing stopped before it came to

the last track.
b Press = repeatedly or eject and

reinsert the MD once to go back to
the beginning of the disc, and restart
playing after checking the track
number in the display.

• The player is placed where it receives

continuous vibration.
b Put the player on a stable place.

A very short track may cause sound
to skip.

• Strong magnetism from a television or

such device is interfering with
operation.
b Move the player away from the

source of strong magnetism.

• The lid of the battery charger is not

closed properly.
b Close the lid and slide the lock.

• The headphones plug is not firmly

connected.
b Connect the headphones plug firmly

to the remote control. Then connect
the remote control plug firmly to the
2/REMOTE jack.

• Volume is too low.

b Adjust the volume by pressing

VOLUME +/– (VOL +/– on the
remote control).

• AVLS is on.

b Slide AVLS to NORM.

Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: 

λ

 = 790 nm

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.

Revolutions
400 rpm to 900 rpm (CLV)
Error correction
Advanced Cross Interleave Reed Solomon Code
(ACIRC)
Sampling frequency
44.1 kHz
Coding
Adaptive TRansform Acoustic Coding (ATRAC)
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter
Below measurable limit
Outputs
Headphones: stereo mini-jack, maximum output
level 5 mW + 5 mW, load impedance 16 ohm

Power requirements
Nickel metal hydride rechargeable battery
NH-9WM (supplied)
One LR6 (size AA) battery (not supplied)
Sony AC Power Adaptor AC-E15L 

1)

 (not

supplied) connected to the DC IN 1.5 V jack
Battery operation time
See “When to replace or charge the batteries”
Dimensions
Approx. 79.7 

×

 14.9 

×

 71.9 mm (w/h/d)

(3 

1

/

4 

×

 

19

/

32

 

×

 2 

7

/

8 

in.) not including projecting

parts and controls
Mass
Approx. 80 g (2.9 oz.) the player only
Approx. 120 g (4.3 oz.) incl. a premastered MD
and a nickel metal hydride rechargeable battery
NH-9WM(N)
Supplied accessories
Battery Charger (1)
Rechargeable battery (1)
Rechargeable battery carrying case (1)
Headphones with a remote control (1)
Dry battery case (1)
Carrying pouch (1)
AC plug adaptor (except for European, USA, and
Canadian models) (1)

AC-E15L AC power adaptor 

1)

Nickel metal hydride rechargeable battery

NH-9WM, NH-14WM

MDR-series Stereo headphones 

2)

SRS-A41 Sony Active Speakers
CK-MD4 MiniDisc Carrying Case
CK-MD10 MiniDisc Filing Box

1) The operative voltage for the AC power

adaptor varies depending upon the country in
which it is sold.  Therefore, purchase the AC
power adaptor  in the country you intend to
use it.

2) Whether you should plug the headphones

directly to 2/REMOTE  on the main unit or to
a remote control, use only headphones with
stereo mini plugs.

Your dealer may not handle some of the above
listed accessories. Please ask the dealer for
detailed information about the accessories in
your country.

US and foreign patents licensed from Dolby
Laboratories Licensing Corporation.

Design and specifications are subject to change
without notice.

2 Connect the headphones with

remote control to 2/REMOTE.

4 Press VOLUME

You can check the
volume in the
display of the
remote control.

1 Connect the headphones to the remote

Plug it in firmly all the way.

Make sure the player is not locked.  See
“To lock the controls.”

If the battery charger does not fit the wall
outlet, use the AC plug adaptor.

1) If you press = or (•+ during

pause, the player will resume playback. If
you keep pressing = or (•+ during
pause (keep the control turned to = or
(•+ on the remote control), you can
fast forward/rewind without listening to
the playback sound.

2) Once you open the lid, the point to start

play will change to the beginning of the
first track.

3) Appears only with MDs that have been

electronically labeled.

Tips
•The OPERATE lamp will light up on the

main unit during playback. It will go off
when p is pressed.

•The display on the remote control will

disappear after a while after you have
pressed p.

Note
Do not slide OPEN during playback.  If you
do, the lid opens and playback will stop.

When using optional headphones
Use the headphones that have stereo-
miniplug. You cannot use other types of
headphones (microplug).

Approx. 7.5 hours

Approx. 10 hours

Approx. 20 hours

Z

z

You can use the player on a dry battery,
house current, or a Ni-MH rechargeable
battery.

G

Insert one size AA (LR6) alkaline battery
(not supplied) into the supplied battery
case, and close the lid.

Attach the battery case to the player.

Z

(none) (normal play)
All the tracks are played once.

.

”f” (all repeat)
All the tracks are played
repeatedly.

.

”f

1

A single track is played
repeatedly.

.

”f 

SHUF

All the tracks are played
repeatedly in random order.

To stop play, press p.

When using the remote control, a short beep sounds in the headphones. The OPERATE lamp
on the main unit will go off. The display on the remote control will disappear after a while.

1

0

2

DIGITAL MEGABASS

NORM LIMIT

AVLS

P on the remote
control (Continuous
short beeps)

Press P again to
resume play.

=or turn the
control to = on the
remote control once
(Three short beeps)

(•+ or turn the
control to (•+
on the remote control
once (Two short
beeps)

keep pressing
= or keep the
control turned to
=on the remote
control

keep pressing
(•+ or keep the
control turned to
(•+ on the
remote control

p and then OPEN
and open the lid.

2)

Pause

Find the
beginning of
the current
track

Find the
beginning of
the next track

Go backwards
while playing

1)

Go forward
while playing

1)

Remove the
MD

This mark is valid for Russia only.

”MD WALKMAN” is a trademark of Sony
Corporation.

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, used, 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 more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment

and the 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.

NICKEL METAL HYDRIDE BATTERY.
DISPOSE OF PROPERLY.
You can return your unwanted nickel
metal hydride batteries to your nearest
Sony Service Center.
Note: In some areas the disposal of nickel
metal hydride batteries in household or
business trash may be prohibited.
For the Sony Service Center nearest you
call 1-800-222-SONY (United States only)
Caution: Do not handle damaged or
leaking nickel metal hydride battery.

NICKEL-CADMIUM BATTERY.
BATTERY MUST BE RECYCLED OR
DISPOSED OF PROPERLY.
Nickel-Cadmium batteries are

recyclable. You can help preserve our
environment by returning your unwanted
batteries to your nearest Sony Service
Center or Factory Service Center for
collection, recycling or proper disposal.
Note: In some areas the disposal of nickel-

cadmium batteries in household or
business trash may be prohibited.

For the Sony Service Center nearest you
call 1-800-222-SONY (United States only)
For the Factory Service Center nearest you
call 416-499-SONY (Canada only)

Caution: Do not handle damaged or

leaking nickel-cadmium
batteries.

Welcome to the world of the MiniDisc! Here
are some of the capabilities and features you'll
discover with the new MiniDisc Player.
• Small body almost the size of a MiniDisc

jacket – Ideal weight and size; fits in your
shirt pocket.

• Shock-resistant memory offsets up to 40

seconds of optical read errors.

• Sturdy, magnesium die-cast body.
• Low power-consumption design enables

long playback with a single “chewing-gum
type” rechargeable battery.

• Shuttle dial remote control with backlit

LCD – Keep the main unit in your pocket
and operate the MiniDisc player through
the shuttle dial on the remote control; The
LCD displays track information, playback
mode as well as battery condition.

p