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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).
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 (“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, excessive static
electricity, 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).
b
Press PLAY MODE 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. 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.
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
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 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
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. 81 x 15.7x 72.9 mm (w/h/d)
(3
1
/4 x
5
/8 x 2
7
/8 in.) not including projecting
parts and controls
Mass
Approx. 103 g (3.7 oz.) the player only
Approx. 145 g (5.2 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)
Optional accessories
AC-E15L AC power adaptor
1)
Nickel metal hydride rechargeable battery
NH-9WM, NH-14WM
MDR-series Stereo headphones
2)
SRS-Z500, Z750, Z1000 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.
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.
zAdditional information
Precautions
On safety
• Do not put any foreign objects in the DC
IN 1.5 V 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.
• 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.
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 break open the shutter.
• 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
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 case may heat up from a short-
circuit and can be dangerous.
Note on mechanical noise
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.
Polarity of the plug