Sony MDR-IF230 Operating Instructions

3-864-633-12(1)
Cordless Stereo
Headphones
Operating Instructions
Mode d'emploi
Manual de instrucciones
MDR-IF230
Sony Corporation © 1998 Printed in China
English
Setting up the
WARNING headphones
1
To prevent fire or shock hazard, do Open the battery compartment lid on top
of the left housing.
not expose the unit to rain or
moisture.
To avoid electrical shock, do not
open the cabinet. Refer servicing
to qualified personnel only.
WARNING
You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate
this equipment.
2
Owner's Record Insert the battery by matching the ] on
the battery to the ] terminal on the lid.
The model number is located on the
headphone housing. The serial number is
located on the inner side of the headband.
Record these numbers in the spaces provided
below. Refer to them whenever you call upon
your Sony dealer regarding this product.
Model No. MDR-IF230
Serial No.
3
Close the battery compartment lid.
Welcome!
Thank you for purchasing the Sony
MDR-IF230 Cordless Stereo Headphones.
Before operating the unit, please read this
manual thoroughly and retain it for future
reference.
Some features are:
• These cordless headphones are ideal for
those already used to the Sony Cordless
Removing the battery
Stereo Headphones system.
Open the battery compartment lid, while
Please use the same type batteries you have
keeping the housing level and remove the
in your own model.
battery from the battery compartment as
• Cordless headphones that allows you to
illustrated below.
listen to a program free from the restriction
of a cord.
Housing (left)
• Broad horizontal listening area that gives
you superb sound virtually anywhere in the
room.
• Self-adjusting headband that fits to your
head perfectly.
• The headphones power turns on and off
automatically every time you put the
headphones on and off (Auto power on/off
function). Battery
• The VOL control adjusts the volume level of
both channels.
Note on the battery
• The power source of the headphones can be
If you already have the MDR-IF230RK or
selected from either a commercially
MDR-IF125RK Cordless Stereo Headphones
available R6 (size AA) battery or a
System. You can use the supplied
NC-AA(HJ) rechargeable battery.
rechargeable battery NC-AA (HJ) with your
system. Refer to the operating instruction
Overview
manual for your Cordless Stereo Headphones
The MDR-IF230 is a cordless stereo
System for information on how to recharge
headphone which uses infrared rays.
the battery.
Connect the optional transmitter to your
Discman, Walkman equipped with a
Battery life
headphone jack or line output jack and you
can listen to a program free from the Battery Approx. hours
restriction of the headphone cord.
Sony alkaline battery 100
LR6/AM3 (N)
Sony battery 50
R6P/SUM-3 (NS)
rechargeable battery 30*
NC-AA (HJ)
*fully charged
When to replace the battery
Replace the battery with a new one when the
POWER indicator dims, and a hissing noise
increases.
Listening to a Precautions
program
• The CE mark on the unit is valid only for
products marketed in the European Union.
1
Turn on the audio/video equipment
• When the headphones are not to be used
connected to the transmitter.
for a long period of time, remove the
battery to avoid damage caused by battery
2
Turn on the transmitter. The infrared
leakage and subsequent corrosion.
emitters light up.
• Do not leave the cordless stereo
headphones in a location subject to direct
3
Put on the headphones and the power
sunlight, heat or moisture.
turns on automatically. The power
indicator glows red when the power
Notes on headphones
turns on.
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
4
be considerate to the people around you.
Adjust the volume.
If you have any questions or problems
concerning the headphones that are not
covered in this manual, please consult your
nearest Sony dealer.
Be sure to bring the headphones and the
transmitter to your Sony dealer when
requiring repair work is needed.
Auto power on/off function
When you remove the headphones, the power
turns off automatically. Avoid pulling up on
Troubleshooting
the self adjusting band when the headphones
are not in use. This might switch the
headphones on. No sound/Muffled sound
/ Turn on the transmitter first, then put on the
/ Check the connection of the audio/video
/ Check that the audio/video equipment is
/ Turn up the volume on the connected audio/
Mute function / The mute function has activated.
If a hissing noise is heard when the infrared
rays are obstructed, or the headphones are
used outside of the effective range the mute
function will be activated and sound will not
be heard from the headphones. To restore the
/ The headphones' power indicator light is
sound, move nearer to the transmitter or
Battery
remove the obstruction.
compartment lid
Distortion
After listening to a program
/ If the transmitter is connected to the
Take the headphones off before turning off
the transmitter. Otherwise you may hear
some noise when the infrared rays are
suddenly cut off.
/ The headphones' power indicator light is
Loud background noise
/ Move closer to the transmitter. As you move
/ Check that there is no object between the
/ Check that the infrared sensors are not
/ Change the position or angle of the
/ If the transmitter is connected to the
/ The headphones' power indicator light is
Replacing the Ear
Pads
When the ear pads become dirty or damaged,
consult your nearest Sony dealer and replace
them as illustrated below.
Remove the old
ear pad by
pulling it
outwards.
Place the new ear
pad around the
driver unit as
illustrated.
Specifications
General
Modulation system
Frequency modulation
Carrier frequency
Right 2.8 MHz
Left 2.3 MHz
Frequency response
18 – 22,000 Hz
headphones.
Power source DC 1.5 V, 1 R6 (size AA) battery
or Ni-Cd rechargeable battery
equipment or the AC power adaptor.
NC-AA (HJ)
turned on. Mass Approx. 180 g (6.4 oz.) including
battery
video equipment, if the transmitter is
connected to the headphones jack. (Around
Optional accessories
level 5 or 6 on the volume control should be
Infrared transmitter TMR-IF33
appropriate.)
Design and specifications are subject to change
•Check if there is any object between the without notice.
transmitter and the headphones.
•Use the headphones near the transmitter.
•Change the position and angle of the
transmitter.
weak or turned off.
n Replace the headphone battery.
headphones jack, turn down the volume of
the connected audio/video equipment.
(Around level 5 or 6 on the volume control
should be appropriate.)
weak or turned off.
n Replace the headphone battery.
away from the transmitter, more noise is
likely to be heard. This is inherent to
infrared ray communication and does not
mean that there is a problem with the unit
itself.
transmitter and the headphones.
covered with your hands or hair.
transmitter.
•The headphones are used by a window
where the sunlight is too strong.
n Draw the curtains/blinds to shut out
the direct sunlight, or use the
headphones away form sunlight.
headphones jack, turn up the volume of the
connected audio/video equipment. (Around
level 5 or 6 on the volume control should be
appropriate.)
weak or turned off.
n Replace the headphone battery.