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SONY, 3-2,_-_o_--!2!
Cordless StereoHeadphoneSystem
[e]_.Operating Instructions
Mode d'emploi
Manual de instrucciones
lt_'|
MDR-IF240RK
© 2003 Sony Corporation
For the customers in the U.S.A and
WARN IN(S Canada
To prevent fire or shockhazard, do not expose the unitto rain or moisture.
To prevent fire or shock hazard, do notplace objects filled with liquids, such asvases, on the apparatus.
To avoid electrical shock, do not open
the cabinet. Refer servicing to qualifiedpersonnel only.
Do not install the appliance in a
confined space, such as a bookcase or
built-in cabinet.
Owner's RecordThe model number is located on thefront of the transmitter and the leftinner side of the headband.
The serial number is located at the
bottom of the transmitter and the rightinner side of the headband.
Record these numbers in the spacesprovided below. Refer to themwhenever you call upon your Sonydealer regarding this product.
Model No. MDR-1F240RK
Transmitter TMRqF240R
Headphones MDRqF240RSerial No.
Transmitter
Headphones
You are cautioned that any changes or
modifications not expressly approved in thismanual could void your authority to operate
this equipment.
RECYCLING NICKEL METALHYDRIDE BATTERIES
Nickel Metal Hydridebatteries are recyclable.
You can help preserveour environment byreturning your usedrecbargeable batteries tothe collection and
recycling location
nearest you.
For more information regarding recycling
of rechargeable batteries, call toll free
1-800-822-8837, or
visit http: //www.rbrc.org/
Caution: Do not handle damaged or
leaking Nickel Metal Hydride batteries.
The validity of the CE marking isrestricted to only those countries whereit is legally enforced, mainly in thecountries EEA (European EconomicArea).
2G°I
Welcome!
Thank you for purchasing the SonyMDRqF240RK Cordless Stereo
Headphone System. Before operatingthe unit, please read this manualthoroughly and retain it for futurereference.
The MDRqF240RK is a cordless stereo
headphone system using infraredtransmission. You can enjoy listening toa programme free from the restrictionof the headphone cord by simplyconnecting the transmitter to a TV, oraudio components equipped with aheadphone jack or a line output jack.
• Cordless, noiseless infrared headphonesystem resistant to external noise, etc.
• Easy rechargeable battery system
automatically charges the headphoneswhen placed on the transmitter.
• Wide infrared reception range of up to 7m(23 ft.).
• Self_adjusting headband mechanismeliminating th_ need for headband
adjustment.
• Single VOL control adjusts both the rightand left volume of the headphones.
• Either rechargeable nickel-metal hydridebattery (supplied) or commercially
available (size AAA) dry battery can beused to power the headphones.
Table of contents
Getting started
Unpacking ........................................... 4
Charging the supplied rechargeablebattery .............................................. 5
Setting up the transmitter ................. 8
Operating the system
Listening to a program .................... 10The effective area of the
transmitter ..................................... 12
Replacing the ear pads .................... 12Additional information
Specifications .................................... 13Precautions ....................................... 14
Troubleshooting ............................... 14
3GB
1_ _ Getting started
UnpackingCheck that you have the followingitems before using the headphones:
• The transmitter TMR-IF240R (1)
• The headphones MDRqF240R (1)
• AC power adaptor (1)
• Connecting cord (1)(phono plugs _ stereo mini plug}
• Unimatch plug adaptor (1)(stereo minijack_=>stereo phone
plug)
• Rechargeablenickel-metal hydridebattery (1)
4G°I
Charging thesuppliedrechargeablebatteryThe supplied rechargeable nickebmetalhydride battery is not charged from thefirst time you use it. Be sure to chargethem before use.
To charge the headphones, place themon the transmitter.
1 Open the battery compartment
lid of the left housing.
2 Insertthe supplied rechargeablenickel-metal hydride battey intothe battery compartmentmatching _) terminal on thebattery to _) on thecompartment.Do not use rechargeable batteryother than the supplied one.
3 Close the battery compartment
lid.
\\
4 If your AC power adaptor isequipped with a voltageselector, set it to the operatingvoltage in your area with ascrew driver before connectingthe AC power adaptor to an ACoutlet.
(Continued)
I 5GB
5 Connect the supplied AC power
adaptor to the transmitter.
Transmitter
to an AC outlet
AC power _-,
adaptor(supplledl
to DC IN 9V jack
6 Rest the headphones on the
transmitter so that the
headphones' contact pointmeets the transmitter's contact
pin while making sure that the
charging indicator lights up.
The charging is completed in about16 hours and the charging indicatorgoes off.
j Right
Contactpoint
Contact
pin
Left housing
When the indicator is not lit
Check if the right and left headphonesare rested on the transmitter correctly.The indicator may not be lit if theheadphones' contact point does notmeet the transmitfer's contact pin. Takeoff the headphones and place them onthe transmitter again so that theindicator lights up.
To recharge the headphonebattery after use
Place the headphones on the transmitterafter you use the headphones. Since the
built-in timer recognizes whencharging is complete, there is no need to
take off the headphones from thetransmitter after the completion ofcharging.
Notes
• The transmitter automatically turns off
while charging the battery.
• This system is designed to charge only thesupplied rechargeable battery type
BP_HP550 for safety. Note that other typesof rechargeable battery cannot be chargedwith this system.
• If a dry battery is installed, they cannot be
charged.
• Do not attempt to use the supplied BP*
HP550 rechargeable battery for othercomponents. They are for use with this
system only.• Charge in an environmental temperature of
between 0_C and 40_C (between 32 _Fand
104°F).
Charging and usage hours
Approx. Approx. usagecharging hours time .1
1 hour 1 hour and 45minutes .3
16 hours .2 35 hours .3
*_ at 1 kHz, 1 mW +1 mW output_: hours required to fully charge empty
battery*_ Time stated above may vary, depending
on the temperature or conditions of use.
6G°I
When the remaining batterypower becomes weak
When the rechargeable battery becomesweak, the power indicator light dims.
Recharge the battery as soon aspossible.
Note
The rechargeable nickel-metal hydride
battery should be replaced with new one
when they last only half the expected timeafter a proper recharging. The rechargeable
battery type BP-HP550 is not commerciallyavailable. You can order the battery from the
store where you purcha_d this system, or atyour nearest Sony dealer.
Using the headphones with drybattery (sold separately)
Commercially available (size AAA) drybatteries can also be used to power theheadphones. Install the battery in thesame manner as described in steps 1through 3 of "Charging the suppliedrechargeable battery."
When dry battery is installed, thebattery charge function is notactivated.
Notes on Batteries
• Do not charge a dry battery.
• Do not carry a dry battery togetherwith coins or other metallic objects. Itcan generate heat if the positive andnegative terminals of the battery areaccidentally come into contact withmetallic objects.
• When you are not going to use theunit for a long time, remove thebattery to avoid damage from batteryleakage or corrosion.
Battery life
Battery Approx. hours *_
Sony alkaline battery 60 hours .2LR03/AM-4(N)
Sony mangane_ 28 hours .2battery R03/UM-4(NU)
*_ at i kHz, 1 mW+l mW output*_ Time stated above may vary, depending
on the temperature or conditions of use.
I 7GB
Setting up thetransmitter
The transmitter is equipped with twoinput jacks, which allows for connectionto the specified output jacks: PHONES1N to the headphone jack, and LINE 1Nto the LINE OUT jacks of yourconnected equipment.
1 Connect the transmitter to an
audio/video component.Select method [] or 1"_, according
to the output jack type of the AVcomponent you use.
[] When connecting to a
headphones jack
Connect to the PHONES 1N jack onthe transmitter.
Transmitter
to PHONES IN jacks
Left channel (white)
Connecting cord
(supplied)
to headphone jack
(stereo mini jack)
_Otheead Phh°nneei acCkl _" _
WALKMAN*, TV,VCR, etc.
* WALKMAN is a registered trademark of
Sony Corporation to represent HeadphoneStereo products.
sG°I
[] When connecting to any jacks
other than the headphones jack
Connect to the LINE IN jacks on thetransmitter.
Transmitter
2 If your AC power adaptor is
equipped with a voltage
selector, set it to the operating
voltage in your area with a
screw driver before connecting
the AC power adaptor to an ACoutlet.
to LINE IN jack
Connecting cord(supplied)
Left channel Right channel
(white) _ (red)
to any jacks
_teha_pthane jack/_V_J
Stereo, TV, VCR, etc.
Note
If your AV component has a stereo mini jack
(LINE OUT), connect the stereo mini jack to
LINE IN jack of the transmitter by using theconnecting cord KK_G136 sold separately. If
you connect LINE OUT jack of your AV
component to PHONES 1N jack of thetransmitter, volume may be too low.
3 Connect the supplied AC power
adaptor to the transmitter.
Transmitter to an ACoutlet
AC power --_
adaptor(supplied)
to DC IN 9 V jack
(Continued)
I 9GB
Notes
• Do not connect to the PHONES 1N jack and
LINE IN jack at the same time. If you
connect two audio/visual components toboth jacks at the same time, both of the
audio signals may result in mixed output.
• Use only the supplied AC power adaptor.Do not use any AC power adaptor.
Unified
polarity plug
• When you connect the connecting cord
directly to an earphone jack (monaural
mini jack), the audio signal may not beoutput through the right channel. In such a
case, use the separately sold PC_236MS
plug adaptor (stereo mini jack 4=>monaural mini plug) between the
connecting cord and tho earphone jack.
Operating the system
Listening to aprogramBefore listening
To prevent your ears from beingdamaged, first lower the volume.
Turn on the audio/video
component connected to the
transmitter.
When the audio signal is input, thetransmitter turns on automaticallyand the infrared emitters glow butthey do not glow while thetransmitter is charging the battery.If the transmitter is connected to the
headphone jack, set the volumecontrol of the audio source
component as high as possible butnot so high that the audio signalbecomes distorted.
2 Turn on the headphones.
The power indicator on the upperpart of the right housing glows red.
3 Put on the headphones.
Be sure to put the right housing (R)on your right ear and the lefthousing (L) on your left ear.
10G
4 Start playback of the
component connected to thetransmitter.
5 Adjust the volume.
If the infrared sensors are covered
by your hands when adjusting thevolume, the mute function will beactivated and volume may not beadjusted. To adjust the volume,move nearer toward the transmitteror orient the infrared emitters on the
left housing towards the transmitter.
After listening to theprogrammes
Take off the headphones, and then turnoff the power. You may also turn off the
headphones automatically by placingthem on the transmitter.
Note
You may hear some noise when youdisconnect the AC power adaptor from the
transmitter before taking off the headphones.
Charging automatically beginswhen you place the headphoneson the transmitter
- Auto charge function
Placing the headphones on thetransmitter automatically turns themoff, and then charging starts. Thiseliminates the need for turning on/offevery time you wear and take off theheadphones.
Sound is automatically muted ifnoise increases
- Mute function
If the infrared rays are obstructed, orthe headphones are used outside theireffective range, noise will increase andsound will become hard to hear. To
avoid potential ear damage as a resultof noise, this function mute any soundfrom the headphones. Sound isautomatically restored when you movenearer the transmitter or remove theobstruction.
If no audio signal is input formore than approximately 5minutes
The transmitter turns off automatically.
Note
The brightness of the infrared emitters maynot be uniform, however, this is not amalfunction.
111GB
The effective areaof the transmitter
The illustration below shows the
approximate area covered by theinfrared rays emitted from thetransmitter.
TransmitterInfrared ray
Approx. 3 rn
Approx. 3 rn
Notes
• If you use the headphones at too great adistance from the transmitter, you may
hear a hissing noise and if there is an objectbetween the headphones and the
transmitter, sound may be interrupted.
These phenomena are inherent to infraredray communication and do not mean that
there is a problem with the system itself.• Do not cover the infrared _l_ors with
your hands or hair.
• When you use the headphones inside thearea in the illustration above, the
transmitter can be placed in front, behind
or by the side of you.
• The noise you may hear through theheadphones may vary depending on the
transmitter position and room conditions.It is recommended that you place the
transmitter in a location that produces thedearest sound.
• Do not use this system in areas expo_d to
direct sunlight or strong light. The soundmay be interrupted.
• Plasma displays may interfere with normaloperation of this system.
Replacing the earpadsThe ear pads are replaceable. If the earpads become dirty or worn out, replacethem as illustrated below.
The ear pad is not commerciallyavailable. You can order replacementsfrom the store where you purchased
this system, or at your nearest Sonydealer.
1 Remove the old ear pad bypulling it off.
2 Place the new ear pad around
the housing.
12G I
Additional information
Specifications
General
Modulation system
Frequency modulation
Carrier frequency
Right 2.8 MHz
Left 2.3 MHz
Frequency response
18 22,000 Hz
Transmitter TMR-IF240R
Power source DC IN 9 V jack acceptspower supplied from the AC
power adaptor (or use on the
following voltages:
Where Operatingpurchased voltage
U.S.A. 120 V AC, 60 Hz
U.K. 230 240 V AC, 50 Hz
European countries 220 230 V AC, 50 Hz
Japan (exept for 110 V/120 V/220 V/Japanese 240 V AC, 50/60 Hzdomestic model)
Other countries 220 230 V AC, 50/
00 Hz or 120 V AC,60 Hz
Audio input
Dimensions
Mass
Phono jacks/stereo mini jack
Approx. 154 x 78 x 99 mm(6 1/8 x 3 1/8 x 4 in.)
(w/h/d)
Approx. 115 g (4.06 oz.)
Headphone MDR-IF240R
Power source Supplied rechargeablenickel-metal hydride batlery
BP-HP550 or commerciallyavailable
(size AAA) dry battery
Mass Approx. 125 g (4.41 oz.j
including battery
Supplied accessories
AC power adaptor (1)
Connecting cord (approx. lm, stereo miniplug × 1 _ phono plug x 2) (1)
Rechargeable nickel - metal hydride batteryBP-HP550 (550 mAh min) (1)
Unimatch plug adaptor (stereo mini jack
stereo phone plug) (1)
Operating instructions (1)
Optional accessories
• If you connect with a stereo mini jack(LINE OUT )RK-GI36
(1.5 m, stereo mini plug x 1 *--* stereo
mini plug x 1)
• If sound is not output through the right
channel when the supplied connecting
cord is connected to the earphone jack.
Plug adaptor PC-236MS
(stereo mini jack *--* monaural mini
plug)
• If you have lost the supplied plug
adaptor.
Plug adaptor PC-234S
(stereo mini jack _ stereo phone plug)
• If you have lost the supplied connectingcord.
RK-GI29
(1.5 m, stereo mini plug _ phono plugx 2)
Design and specifications are subject to
change without notice.
13GB
Precautions
• When the transmitter is not to be
used for a long period of time,disconnect the AC power adaptorfrom the AC outlet holding the plugand remove the battery to avoiddamage caused by battery leakageand subsequent corrosion.
• Do not leave the cordless stereo
headphones system in a locationsubject to direct sunlight, heat ormoisture (It is recommended to use
the headphones at a temperature ofbetween 5°C and 35°C (between 41°Fand 95°F).)
• Do not drop, hit or otherwise subjectthe transmitter or headphones tostrong shocks of any kind. This coulddamage the product.
Notes on headphonespreventing hearing damageAvoid using headphones at highvolume. Hearing experts advise againstcontinuous, loud and extended play. Ifyou experience a ringing in your ears,lower the volume or discontinue use.
Caring for others
Keep the volume at a moderate level.This will allow you to hear outsidesounds and to be considerate to the
people around you.
If you have any questions or problemsconcerning the system that are notcovered in this manual, please consultnearest Sony dealer.
Be sure to bring the headphones andthe transmitter to Sony dealer whenrequiring repair work.
Troubleshooting
No sound/Muffled sound
Turn on the transmitter first, and then
put on the headphones.Check the connection of the audio/
video equipment or the AC power
adaptor.
Check that the audio/video equipmentconnected to the transmitter is turned
Oil.
If the transmitter is connected to theheadphones jack, raise the volume ofthe audio/video equipment connectedto the transmitter.The mute function is activated.
• Check if there is any object betweenthe transmitter and the headphones.
• Use the headphones near thetransmitter.
• Change the position and angle of thetransmitter.
The headphones' power indicator lightdims, flashes or goes off.• Charge the rechargeable battery if
the headphones' battery is weak, orreplace dry battery with new ones. Ifthe power indicator is still off aftercharging the battery, take theheadphones to a Sony dealer.
If you connect the LINE OUT jacks ofyour connected equipment to thePHONES IN jacks of the transmitter,volume may be too low. Use the LINEIN jacks of the transmitter instead. See"Setting up the transmitter".
14G
Distorted sound
If the transmitter is connected to the
headphones jack, lower the volume of
the audio/video equipment conl_ectedto the transmitter.
The headphones' power indicator light
dims, flashes or goes off.
• Charge the rechargeable battery if
the headphones' battery is weak, or
replace dry battery with new ones. If
the power indicator is still off after
charging the battery, take the
headphones to a Sony dealer.
If you connect the headphone jacks of
your connected equipment to the LINE
IN jack of the transmitter, sound may
be distorted when raising the volume.
Use the PHONES IN jacks of the
transmitter instead. See "Setting up thetransmitter."
Loud background noise
Move closer to the transmitter. (As youmove away from the transmitter, more
noise is likely to be heard. This isinherent in infrared ray communicationand does not mean that there is a
problem with the unit itself.)
Check that there is no object between
the transmitter and the headphones.Check that the infrared sensors are not
covered with your hands or hair.If you use the headphones by a
window where the sunlight is toostrong, draw the curtains/blinds to
shut out the direct sunlight, or use theheadphones away from the sunlight.
Change the position or angle of thetransmitter.
If the transmitter is connected to the
headphones jack, raise the volume of
the audio/video equipment conl_ectedto the transmitter.
The headphones' power indicator lightdims, flashes or goes off.
• Charge the rechargeable battery if
the headphones' battery is weak, orreplace dry battery with new ones. If
the power indicator is still off after
charging the battery, take the
headphones to a Sony dealer.
,,_ When you have another transmitter,check if more than one transmitters are
used at the same time.
• Turn off other transmitter or move to
a place outside the range of thistransmitter.
The battery cannot becharged
"_ Check if the charging indicator light is
on. If not, put the headphones on the
transmitter correctly so that the
charging indicator light is on.
,,_ Dry battery is installed.
• Install the supplied rechargeable
nickel-metal hydride battery.
,,_ Rechargeable battery other than the
supplied is installed.
• Install the supplied rechargeablenickel-metal hydride battery.
_1 15GB
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