Playback
Approx. 21 hours**
Approx. 31 hours
Approx. 56 hours**
Playing an MD right
away!
Charge the supplied rechargeable battery, before using it for the first
time. Other choices are a dry battery and house current. For details, see
“Power Sources”.
Stereo or monaural playback is automatically selected, depending on the
sound source.
Charge the rechargeable battery.
After about 1.5 hours, charging ends and the lamp on the charger
turns off. (To get maximum performance from battery, continue
charging it for another hour after the lamp turns off.)
Insert the rechargeable battery.
e
E
Insert an MD.
Play an MD.
1
4
4
3
3
2
.
N/
>
x
x
1
Connect the headphones to the remote control.
Plug it in firmly all the way.
2
Connect the headphones with the remote control to the
i
jack.
3
Press
> N
(or press the control towards
N
/
>
or
.
on the remote
control).
The OPR lamp on the player lights up and the player starts to play the first track.
When using the remote control, a short beep sounds in the headphones.
4
Press /– (or press VOL +/– on the remote control) to adjust the
volume.
The volume indicator appears on the remote control to allow you to check the
volume.
To stop play, press
x
.
The OPR lamp on the player goes off. The display on the remote control disappears
after a while. When using the remote control, a long beep sounds in the headphones.
B
Power sources
You can use the player on a dry battery,
house current, or a Ni-MH rechargeable
battery.
Using on a dry battery
1
Insert one LR6 (size AA) alkaline battery
(not supplied) into the supplied battery
case, and close the lid.
Make sure the + and – terminals
are correctly oriented.
2
Attach the battery case to the player.
Turn towards LOCK.
To release the battery case,
turn towards RELEASE.
When to replace or charge the batteries
You can check the battery condition with the
battery indication which is displayed while using
the player.
t
Battery power decreasing
v
r
Weak batteries.
v
e
The batteries have gone out. “LOW
BATT” flashes in the display on the
remote control, and the power goes off.
Battery life
*
Batteries
Ni-MH
rechargeable battery
(NH-14WM)
One LR6 (size AA)
alkaline battery
One LR6 (size AA)
alkaline battery
and a Ni-MH
rechargeable
battery
(NH-14WM)
* The battery life may be shorter depending on
operating conditions and the temperature of
the location.
** With a fully charged battery
Using on house current
Remove the rechargeable battery when using
the player on house current.
1
Attach the supplied battery case to the
player.
2
Connect the AC-E15L AC power adaptor
(not supplied) to the DC IN 1.5V jack of
the battery case.
3
Connect the AC power adaptor to a wall
outlet.
Note
The battery indication is displayed while using
the AC power adaptor.
Operating instructions
Mode d’emploi (au dos)
Portable MiniDisc Player
MZ-E90
Sony Corporation © 1999 Printed in Japan
3-868-188-21(1)
WARNING
To prevent fire or shock
hazard, do not expose
the unit to rain or
moisture.
To avoid electrical
shock, do not open the
cabinet. Refer servicing
to qualified personnel
only.
Caution
The use of optical instruments with this
product will increase eye hazard.
Listening for many hours at maximum
volume may damage your hearings.
Information
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.
MZ-E90
This mark is valid for Russia only.
Certain countries may regulate disposal of the
battery used to power this product.
Please consult with your local authority.
“MD WALKMAN” is a trademark of Sony
Corporation.
For customers in the United States
Owner’s Record
The model number is located at the bottom
and near the display and the serial number is
located on the floor of the disc compartment.
Record the serial number in the space
provided below. Refer to them whenever you
call upon your Sony dealer regarding this
product.
Model No. MZ-E90
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
by one or more of the following measures:
2
Insert an MD and press the lid down to
close.
1
Slide OPEN.
3
2
Insert the battery.
1
Slide open the battery
compartment as shown in the
illustration.
B
Various ways of
playback
Playing tracks repeatedly
You can play tracks repeatedly in three ways
— all repeat, single repeat, and shuffle repeat.
PLAYMODE
Press PLAYMODE while the player is playing
an MD.
Each time you press PLAYMODE, the play
mode indication changes as follows.
Play mode indication
(none) (normal play)
All the tracks are played once.
m
“
F
” (all repeat)
All the tracks are played repeatedly.
m
“
F
1
” (single repeat)
A single track is played repeatedly.
m
“
F
SHUF
” (shuffle repeat)
All the tracks are played repeatedly in
random order.
Tips on playback
To know the track name and time
Press DISPLAY on the remote control while
the player is playing an MD.
Each time you press DISPLAY, the display
changes as follows.
DISPLAY
Elapsed time
Track number
m
Track name
Track number
m
Disc name
Number of tracks recorded on the MD
Note
Disc and track names appear only with MDs that
have been electronically labeled.
To lock the controls (HOLD)
To prevent the buttons from being
accidentally operated when you carry the
player, use this function.
HOLD
HOLD
Slide HOLD on the player in the direction of
the
.
to lock the controls of the unit.
Slide HOLD on the remote control in the
direction of the
.
to lock the controls of the
remote control.
To emphasize bass
(DIGITAL MEGABASS)
The DIGITAL MEGABASS function
intensifies low frequency sound for richer
quality audio reproduction.
•
1
DIGITAL MEGABASS
•
2
•
0
Set DIGITAL MEGABASS to 1 (weak) or
2 (strong).
To cancel the effect, set DIGITAL MEGABASS
to 0.
Note
If the sound becomes distorted when
emphasizing bass, turn down the volume.
To protect your hearing (AVLS)
The AVLS (Automatic Volume Limiter
System) function keeps down the maximum
volume to protect your ears.
•
LIMIT
AVLS
•
NORM
Set AVLS to LIMIT.
The volume is kept at a moderate level, even
if you try to turn the volume above the
limited level.
to DC IN 1.5V jack
to a wall outlet
4
To
Pause
Find the
beginning of
the current
track
Find the
beginning of
the previous
tracks
Find the
beginning of
the next track
Go backwards
while
playing*
1
Go forward
while
playing*
1
Remove the
MD
If playback does not start
Make sure the player is not locked. For
details, see “To lock the controls
(HOLD)”.
For models supplied with the AC
plug adaptor
If the battery charger does not fit the wall
outlet, use the AC plug adaptor.
Display window while playing
back
For details, see “To know the track name
and time”.
Track name*
3
or elapsed time of
the track being played
Track number
Tips
• The OPR lamp on the player lights up on
the player during playback. When you
press
x
, the lamp goes off.
• The display on the remote control
disappears after a while after you have
pressed
x
.
Note
Do not slide OPEN during playback. If you
do, the lid opens and playback stops.
When using optional headphones
Use headphones with a stereo-miniplug.
You cannot use headphones with a
microplug.
*
1
When you press
.
or
>
N
on the
player during pause (
X
), the player
resumes playback.
If you hold down
.
or
>
N
on the
player (or press and hold the control
towards
.
or
N
/
>
on the remote
control) during pause (
X
), you can fast
forward/rewind without listening to the
playback sound.
*
2
Once you open the lid, the point to start
playback will change to the beginning of
the first track.
*
3
Appears only with MDs that have been
electronically labeled.
With label facing upward, insert disc in
direction of the arrow.
Do this (Beeps in the
headphones)
Press
X
on the remote
control. (Continuous
short beeps)
Press
X
on the remote
control again to
resume play.*
1
Press
.
once.
Press the control
towards
.
on the
remote control. (Three
short beeps)
Press
.
repeatedly.
Press the control
towards
.
on the
remote control
repeatedly.
(Continuous three
short beeps)
Press
>
N
once.
Press the control
towards
N
/
>
on
the remote control.
(Two short beeps)
Hold down
.
.
Press and hold the
control towards
.
on the remote control.
Hold down
>
N
.
Press and hold the
control towards
N
/
>
on the
remote control.
Press
x
, and then
slide OPEN.*
2
b
b
Make sure the + and
– terminals are
correctly oriented.
Player
Remote
control
i
jack
1
2
— 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.
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.
You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate
this equipment.
For customers in the United States
and Canada
DISPOSAL OF NICKEL METAL
HYDRIDE BATTERY.
NICKEL METAL HYDRIDE BATTERY.
DISPOSE OF PROPERLY.
You can return your unwanted nickel metal
hydride batteries to your nearest Sony Service
Center or Factory 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)
For the Sony Factory Service Center nearest
you call 416-499-SONY (Canada only)
Caution:
Do not handle damaged or leaking
nickel metal hydride battery.
For customers in Australia
If the supply cord of the AC power adaptor is
damaged, the AC power adaptor must be
returned to the manufacturer or his agent for
the cord to be replaced.
Welcome!
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.
• Upper and lower body made of new
developed high-rigidity magnesium
• Low power-consumption design enables
extended battery life.
• Simple “One-Touch Eject” function for
easy MiniDisc handling
A single slide of a switch on the side of the
player causes the player lid to open and the
MiniDisc to eject.
• Easy-to-operate headphones remote
control with backlit LCD
Keep the main unit in your pocket and
operate the MiniDisc player through the
“slim stick” remote control. The LCD
displays disc and track information,
playback mode as well as battery
condition.
• Shock-resistant memory offsets up to 40
seconds of optical read errors.
TM
Troubleshooting
Should any problem persist after you have
made these checks, consult your nearest Sony
dealer.
The player does not work or works
poorly.
• You tried to play with no disc in the
player (“NO DISC” flashes on the
remote control).
b
Insert an MD.
•The hold function is activated and the
controls are locked. (If you press any of
the operation buttons on the player,
“HOLD” flashes on the remote control.)
b
Slide HOLD against the direction of
the arrow to release the hold
function.
• Moisture has condensed inside the
player.
b
Take the MD out and leave the
player’s lid open for several hours
until the moisture evaporates.
• The rechargeable battery or dry battery
is weak (“LOW BATT” flashes on the
remote control).
b
Replace the dry battery or recharge
the battery.
• The rechargeable battery or dry battery
has been installed incorrectly.
b
Install the battery with correct
polarity.
• An MD with no recording on it is
inserted (“BLANKDISC” flashes on the
remote control).
b
Insert a recorded MD.
• The player cannot read the disc (it’s
scratched or dirty) (“DISC ERR” 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 as follows.
1
Disconnect all the power sources.
2
Leave the player for about
30 seconds.
3
Connect the power source.
The MD is not played normally.
• The player is set to the repeat mode
(“
F
” is displayed on the remote
control).
b
Press PLAYMODE repeatedly until
“
F
” disappears, then start
playing.
An MD is not played from the first track.
• 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.
Playback sound skips.
• 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.
Sound has a lot of static.
• Strong magnetism from a television or
such device is interfering with
operation.
b
Move the player away from the
source of strong magnetism.
The rechargeable battery does not start
charging (in case of a charger with a lid).
• The lid of the battery charger is not
closed properly.
b
Close the lid and slide the lock.
No sound comes through the
headphones.
• The headphones plug is not firmly
connected.
b
Connect the headphones plug firmly
to the remote control.
b
Connect the headphones plug firmly
to the
i
jack.
• Volume is too low.
b
Adjust the volume by pressing
/– (VOL +/– on the
remote control).
• AVLS is on.
b
Slide AVLS to NORM.
Specifications
System
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
600 rpm to 2250 rpm
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 ohms
General
Power requirements
Nickel metal hydride rechargeable battery
NH-14WM (supplied)
One LR6 (size AA) battery (not supplied)
Sony AC Power Adaptor AC-E15L* (not
supplied) connected to the DC IN 1.5V jack
Battery operation time
See “When to replace or charge the batteries”
Dimensions
Approx. 78.4
×
13.5
×
71.5 mm (w/h/d)
(3
1
/
8
×
9
/
16
×
2
7
/
8
in.) not including projecting
parts and controls
Mass
Approx. 70 g (2.5 oz.) the player only
Approx. 113 g (4.0 oz.) incl. a premastered MD
and a nickel metal hydride rechargeable battery
NH-14WM
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 (1) (World model only)
Optional accessories
AC-E15L AC power adaptor* (except for
Australia)
MDR-series Stereo headphones**
SRS-series Sony Active Speakers
* 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.
** Whether you should plug the headphones
directly to the
i
jack on the main unit or to a
remote control, use only headphones with
stereo mini plugs.
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.
B
Additional information
Precautions
On safety
Do not put any foreign objects in the DC IN
1.5V jack.
On power sources
• 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.
Polarity of the plug
• 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.
On charging
• 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.
On the battery case attachment
terminals on the main unit
• 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.
On heat build-up
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.
On installation
• 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.
On the 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
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.
On the MiniDisc cartridge
• Do not touch the internal disc directly.
Forcing the shutter open may damage the
internal disc.
• Do not place the cartridge where it will be
subjected to light, temperature, moisture or
dust.
On cleaning
• 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.
On dry batteries and the battery
carrying case
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.
On mechanical noise
The player gives out mechanical noise while
operating, which is caused by the power-
saving system of the player. This is not a
malfunction.
If you have any questions or problems
concerning your player, please consult your
nearest Sony dealer.
OPR lamp
lamp
NH-14WM
(supplied)
to a wall outlet
• Model for USA, Canada and
continental Europe (Full charging
takes 80 minutes.)
• World model and model for other
countries (Full charging takes 120
minutes.)
lamp
NH-14WM
(supplied)
to a wall
outlet
