Sony MDR-RF985RK Operating Instructions Manual

Also see for MDR-RF985RK: Important safety instructions Specifications Operating instructions Manual

Contents

headphone system

English Wireless Stereo Headphone SystemWARNINGTo reduce the risk of fire or electric shock, do not expose thisapparatus to rain or moisture.To reduce the risk of fire or electric shock, do not expose thisapparatus to dripping or splashing, and do not place objectsfilled with liquids, such as vases, on the apparatus.Do not expose the batteries (battery pack or batteries installed)to excessive heat such as sunshine, fire or the like for a long time.To avoid electrical shock, do not open the cabinet. Referservicing to qualified personnel only.Do not install the appliance in a confined space, such as abookcase or built-in cabinet.As the main plug of AC power adaptor is used to disconnect theAC power adaptor from the mains, connect it to an easilyaccessible AC outlet. Should you notice an abnormality in it,disconnect it from the AC outlet immediately.Excessive sound pressure from earphones and headphones cancause hearing loss.InformationYou are cautioned that any changes or modifications notexpressly approved in this manual could void your authority tooperate this equipment.If you have any questions about this product, you may call:Sony Customer Information Services Center1-800-222-7669 or http://www.sony.com/Declaration of ConformityTrade Name: SONYModel No.: MDR-RF985R(Headphones Unit)Responsible Party: Sony Electronics Inc.Address: 16530 Via Esprillo, San Diego, CA 92127USATelephone No.: 858-942-2230This device complies with Part 15 of the FCC Rules. Operationis subject to the following two conditions: (1) this device maynot cause harmful interference, and (2) this device mustaccept any interference received, including interference thatmay cause undesired operation.NoteThis equipment has been tested and found to comply with thelimits for a Class B digital device, pursuant to Part 15 of the FCCRules. These limits are designed to provide reasonableprotection against harmful interference in a residentialinstallation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used inaccordance with the instructions, may cause harmfulinterference to radio communications.However, there is no guarantee that interference will not occurin a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can bedetermined by turning the equipment off and on, the user isencouraged to try to correct the interference by one or more ofthe following measures:Reorient or relocate the receiving antenna.Increase the separation between the equipment and receiver.––Connect the equipment into an outlet on a circuit differentfrom that to which the receiver is connected.Consult the dealer or an experienced radio/ TV technician forhelp.This device complies with Industry Canada licence-exempt RSSstandard(s). Operation is subject to the following two conditions:(1) this device may not cause interference, and (2) this devicemust accept any interference, including interference that maycause undesired operation of the device.For the state of California, USA onlyPerchlorate Material - special handling may apply, Seewww.dtsc.ca.gov/hazardouswaste/perchloratePerchlorate material: Lithium battery containsperchlorateFor the customers in the USA andCanadaRECYCLING LITHIUM-ION BATTERIESLithium-Ion batteries are recyclable.You can help preserve our environment byreturning your used rechargeable batteries tothe collection and recycling location nearestyou.For more information regarding recycling of rechargeablebatteries, call toll free 1-800-822-8837, or visithttp://www.rbrc.org/Caution: Do not handle damaged or leaking Lithium-Ionbatteries.Checking the includeditemsRF stereo transmitterTMR-RF985R (1)Wireless stereo headphonesMDR-RF985R (1)AC adaptor (1)Connecting cable (stereo miniplug  pin plug × 2), 1 m (1)––How to use Tips for chargingWhen the transmitter’s contact pins meet the headphones’contact points, the CHG indicator lights up red. If they do notmeet, the indicator will not light up. Confirm that theheadphones make a “click” sound when you put them on thetransmitter. When the headphones are correctly placed on thetransmitter, the upper surface of the headphones becomes levelwith the transmitter.The CHG indicator turns off when charging is complete.Charging and usage timeApprox. charging time Approx. usage time1)3.5 hours2) 25 hours3)1) at 1 kHz, 0.1 mW + 0.1 mW output2) hours required to fully charge an empty battery3) Time may vary, depending on the temperature or conditionsof use.To recharge the headphone batteryafter usePlace the headphones on the transmitter after use. The CHGindicator lights up, then charging starts.When charging is complete, there is no need to remove theheadphones from the transmitter.Remaining batteryTo check the remaining battery charge of the headphones, turnon the headphones, and check the power indicator near thePOWER switch. The battery is still serviceable when the indicatorlights up green.Charge the headphones if the power indicator turns off, dims,flashes, or the sound becomes distorted or noisy.NotesInsert the AC adaptor plug firmly.Be sure to use the supplied AC adaptor. Using AC adaptorswith different plug polarity or other characteristics can causeproduct failure.Unifiedpolarity plugThe battery capacity may decrease if the headphones areturned on and placed on the transmitter with the AC adaptordisconnected.The transmitter automatically turns off while charging theheadphones.If the headphones are used outside the recommendedtemperature range, the CHG indicator flashes and chargingstops. Charge in an environmental temperature of between5°C and 35°C (between 41 °F and 95 °F).If you haven’t used the headphones for a long period of time,the life of the rechargeable battery may become short. This willimprove when you repeat the charging and dischargingprocess several times.When the battery life reduces to half, this may be the end ofbattery lifetime. For how to change batteries, consult yourplace of purchase or a Sony dealer.Do not store the headphones in hot places for a long period oftime. When storing them for more than a year, charge thebattery once a year to prevent over discharge.Do not touch the contact pins of the transmitter. If the contactpins become dirty, charging may not be possible.Charging may not be completed if the transmitter’s contactpins and headphones’ contact points are dusty. Wipe themwith a cotton bud, etc.Tips for volume settingIf you connect the transmitter to the headphone jack of theA/V component, set the volume of the A/V component as highas possible but not so high that the audio signal becomesdistorted.When watching videos, be careful not to raise the volume toohigh in quiet scenes. You may hurt your ears when a loudscene is played.Tips for better receptionReceiving performanceThis system utilizes very high frequency signals in the 900 MHzband so the receiving performance may deteriorate due to thesurroundings. The following examples illustrate conditions thatmay reduce the reception range or cause interference.Inside a building with walls containing steel beamsAn area with many steel file cabinets, etc.An area with many electrical appliances capable of generatingelectromagnetic fieldsThe transmitter is placed on a metal instrument.An area facing a roadwayNoise or interfering signals exist in the surroundings due toradio transceivers in trucks, etc.Noise or interfering signals exist in the surroundings owing towireless communication systems installed along roadways.Effective area of the transmitterThe optimum distance is up to approximately 45 m (150 ft)without the system picking up some interference. However, thedistance may vary depending on the surroundings andenvironment.If the system picks up some noise within the above mentioneddistance, reduce the distance between the transmitter and theheadphones, or select another channel.When you use the headphones inside the effective area of thetransmitter, the transmitter can be placed in any direction fromthe listener.Even within the signal reception area, there are some spots(dead spots) where the RF signal cannot be received. Thischaracteristic is inherent to RF signals, and does not indicatemalfunction. By slightly moving the transmitter, location of thedead spot can be changed.––––––––––––––––––––––Replacing the earpadsThe earpads are replaceable. If the earpads become dirty orworn out, replace them as illustrated below. The earpads are notcommercially available. You can order replacements from thestore where you purchased this system, or at your nearest Sonydealer.1 Remove the old earpad by pulling it out of the groove on thehousing.2 Place the new earpad on the driver unit.Hang the edge of the earpad on one side of the driver unit’sgroove edge, then turn the edge of earpad around the driverunit as illustrated below.When the earpad is securely inserted into the groove, adjustthe earpad to the vertical position.TroubleshootingIf you run into any problems using this system, use the followingchecklist. Should any problem persist, consult your nearest Sonydealer.No sound/Low soundTurn on the headphones.Check the connection of the A/V component or the ACadaptor.Check that the A/V component is turned on.If you connect the transmitter to an A/V component using theheadphone jack, raise the volume level on the connected A/Vcomponent within the range where the sound is not distorted.Change the radio frequency with the CHANNEL selector on thetransmitter, then press the AUTO TUNING button on the righthousing of the headphones.Use the headphones near the transmitter, or change theposition of the transmitter.Charge the headphones. If the power indicator is still off aftercharging, take the headphones to a Sony dealer.Raise the headphone volume.Distorted or intermittent sound(sometimes with noise)Charge the headphones. If the power indicator is still off aftercharging, take the headphones to a Sony dealer.Use the headphones near the transmitter, or change theposition of the transmitter.Do not place the transmitter on a metallic table.If you connect the transmitter to an A/V component using theheadphone jack, lower the volume level on the connected A/Vcomponent within the range where the sound is not distorted.Change the radio frequency with the CHANNEL selector switchon the transmitter, then set to the same radio frequency withthe AUTO TUNING button on the right housing of theheadphones.Loud background noiseIf you connect the transmitter to an A/V component using theheadphone jack, raise the volume level on the connected A/Vcomponent within the range where the sound is not distorted.Charge the headphones. If the power indicator is still off aftercharging, take the headphones to a Sony dealer.Do not place the transmitter on a metallic table.Use the headphones near the transmitter.The sound cuts offThe transmitter turns off if no signal or low signal is input for 4minutes. If you connect the transmitter to an A/V componentusing the headphone jack, raise the volume level on theconnected A/V component within the range where the soundis not distorted.Battery cannot be charged/CHGindicator flashes, or does not light upPut the headphones on the transmitter correctly so that theCHG indicator lights up.The transmitter’s contact pins and headphones’ contact pointsare dusty. Wipe them with a cotton bud, etc.You cannot charge while the CHG indicator flashes. Charge inan environmental temperature of between 5°C and 35°C(between 41 °F and 95 °F).Check that the AC adaptor is connected to the transmitter.––––––––––––––––––––––PrecautionsIf the transmitter is not to be used for a long period of time,disconnect the AC adaptor from the AC outlet by holding theplug. Do not pull on the cord.Do not leave this system in a location subject to directsunlight, heat or moisture.This system is guaranteed for use in the temperature range of5 °C to 35 °C (41 °F to 95 °F).You may hear some noise when you disconnect the ACadaptor from the transmitter before taking off theheadphones.Avoid exposure to temperature extremes, direct sunlight,moisture, sand, dust or mechanical shock.Notes on headphonesTo reduce the risk of hearing damageAvoid using headphones at high volume. Hearing experts adviseagainst continuous, loud and extended play. If you experience aringing in your ears, lower the volume or discontinue use.Caring for othersKeep the volume at a moderate level. This will allow you to hearoutside sounds and to be considerate to the people around you.If you have any questions or problems concerning the systemthat are not covered in this manual, please consult your nearestSony dealer.Be sure to bring the headphones and the transmitter to the Sonydealer when requiring repair work.FeaturesThank you for purchasing the Sony MDR-RF985RK WirelessStereo Headphone System. Before operating the unit, pleaseread this manual thoroughly and retain it for future reference.Some features are:Wireless system that allows you to listen to a program freefrom the restriction of a cordEasy connection to TV and Hi-Fi Audio system componentFast recharging function with secure charging mechanismNoise reduction system to reproduce a clear sound withminimum transmission noiseAutomatic tuning on headphones for optimum signalreception3 transmission channels availableUp to 45 meters (150 feet) reception range*Long playback time (approx. 25 hours)High fidelity sound reproductionVolume control function on the headphones* Transmission distance varies depending on conditions of use.SpecificationsRF stereo transmitter (TMR-RF985R)Modulation FM stereoCarrier frequency 915.5 MHz, 916.0 MHz, 916.5 MHzChannel Ch1, Ch2, Ch3Transmission distanceApprox. 45 m (150 ft) of longestAudio inputs Pin jacks (left/right)Stereo mini jackPower requirementsDC 12 V (from the supplied AC adaptor)Dimensions Approx. 120 mm × 264 mm × 120 mm(4 3/4 × 10 1/2 × 4 3/4 in) (w/h/d)Mass Approx. 470 g (1 lb 0.58 oz)Rated power consumption3.0 WOperating temperature5°C to 35°C (41°F to 95°F)Wireless stereo headphones (MDR-RF985R)Frequency response10 Hz – 22,000 HzPower source Built-in lithium-ion rechargeable batteryMass Approx. 320 g (11.29 oz)Operating temperature5°C to 35°C (41°F to 95°F)Included itemsRF stereo transmitter TMR-RF985RWireless stereo headphones MDR-RF985RAC adaptor (12 V) (1)Connecting cable (stereo mini plug  pin plug × 2), 1 m (39 3/8in) (1)Card warranty (1)Operating Instructions (this manual) (1)Design and specifications are subject to change without notice.–––––––––––––––Connect the AC adaptor. Charge the headphones.To ACoutlet (Red) (Off )Complete when indicatorturns off.Connect the A/V component, following hookup  or  below. Using the headphone jack of the A/V componentL (white)R (red)Stereo mini plugHeadphone jack(Stereo mini jack)TV, Digital music player, etc.L (white)R (red)Stereo mini plugAudio out(L/R) jacksStereo system, Blu-ray Disc player, DVD player, TV*, etc.* In case of no headphone jack.If you cannot receive a clear audio signalFirst change the radio frequency with the CHANNEL selector switch on the transmitter,then briefly press the AUTO TUNING button on the headphones.Noise Reduction processThe transmitter compresses the audio signal and converts it to RF signal. The headphones convertthe received RF signal to an audio signal and decompresses it. This process reduces noise pickedup during transmission.input signal output signaldecompressioncompressiondynamic rangeTransmitter unit Headphones unitRF transmissionnoise level (low)  The transmitter compresses the audio signals dynamic range, then converts it to RF signal. Noise may occur due to long distance transmission, etc. The headphones convert the RF signal to an audio signal. Noise may occur during conversion. Decompression of the audio signals dynamic range reduces the noise level and improves theS/N (signal-to-noise) ratio.Adjust the volume. After useTurn off the power of the headphones.About sending RF signalsThe transmitter starts sending RF signals automaticallywhen it detects an audio signal from the connectedcomponent. Note that;Noise may occur depending on the transmitterposition and room conditions. It is recommended toplace the transmitter in a location that produces theclearest sound.If the transmitter is placed on a metallic table, you mayhear noise, or the reception range may decrease. Donot place on a metallic table.––If no signal or low signal is inputfor about 4 minutesWhen no signal is input for about 4 minutes, thetransmitter turns off automatically*. The POWERindicator of the transmitter blinks for 60 seconds, thenturns off. The transmitter restarts after receiving an audiosignal again.The transmitter may also turn off if low signal is input forabout 4 minutes. In this case, raise the volume of theconnected A/V component within the range where thesound is not distorted, then lower the volume of theheadphones.* If signal noise is output from the connected A/Vcomponent, the transmitter may not turn off, evenwhen no audio signal is input.Start playback of the A/V component.Wear the headphones.Before listeningTo reduce the risk of hearing damage, first lower the volume.Tactile dotUp DownTactile dot Using the audio out (L/R) jacks of the A/V componentIf you want to receive audio on the headphones while at the same time hearing audio from the television speakers:connect the transmitter to your Cable Box/Satellite Box rather than your television.31 264 5Wireless StereoHeadphone System©2012 Sony Corporation Printed in China4-429-926-12(1)MDR-RF985RKOperating InstructionsMode d’emploi

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