Radio Shack 3301186T 900 MHz Stereo Transmitter User Manual www RadioShack with In Line CircleR eps

RadioShack Corporation 900 MHz Stereo Transmitter www RadioShack with In Line CircleR eps

User Manual

OWNER’S MANUAL — Please read before using this equipment.© 2000 RadioShack Corporation. All Rights Reserved.RadioShack and RadioShack.com are trademarksused by RadioShack Corporation.900 MHz Wireless Stereo HeadphonesYour RadioShack Rechargeable 900 MHzWireless Stereo Headphones use the 900MHz band to deliver high-quality stereosound to almost anywhere in or around yourhome. Your headphones’ three selectablechannels, PLL (Phase-Locked Loop) circuitryand built-in antenna give you precise tuning,so you can enjoy your favorite sounds with-out disturbing others while you exercise orwork around your yard or house — up to 150feet away from your stereo. Power/Transmitter Indicator — lightsgreen when the AC adapter is correctlyplugged in and turns amber when the trans-mitter is on.Charging Indicator — lights red when thebattery is charging.THE FCC WANTS YOU TO KNOWYour headphones might cause TV or radiointerference even when they are operatingproperly. To determine whether your head-phones are causing the interference, turn offthe headphones. If the interference goesaway, your headphones are causing the in-terference. Try to eliminate the interference by:• moving your headphones’ transmitteraway from the receiver• connecting your headphones’ transmit-ter to an outlet that is on a different elec-trical circuit from the receiver• contacting your local RadioShack storefor helpIf you cannot eliminate the interference, theFCC requires that you stop using your head-phones.Warning: Changes or modifications to thisunit not expressly approved by the party re-sponsible for compliance could void the us-er’s authority to operate the unit.Notes: • This equipment has been tested andfound to comply with the limits for aClass B digital device, pursuant to Part15 of the FCC Rules. These limits aredesigned to provide reasonable protec-tion against harmful interference in aresidential installation. This equipmentgenerates, uses and can radiate radiofrequency energy and, if not installedand used in accordance with the instruc-tions, may cause harmful interference toradio communications.• Your headphones are subject to interfer-ence from other devices, such as cord-less phones, wireless speakers, andother wireless headphones that operateon the same frequencies. If you experi-ence interference, try moving the head-phones away from the other device.PREPARATIONChoosing a LocationMany factors affect the range of your system.To achieve the best performance:• Position the transmitter as far as possi-ble from other electronic devices suchas TVs, receivers, or VCRs. Radio inter-33-1186.fm Page 1 Tuesday, October 31, 2000 4:48 PM
2ference from these devices could affectyour system’s performance.• Position the transmitter away from largemetal objects, as these could block yourtransmitter’s signals.• Try several locations for the transmitter.Select the location that provides the bestperformance.Your system’s overall performance dependson your home’s construction method, the oth-er devices near the system, and other radiofrequency sources in your home (such ascordless telephones).Using AC PowerUse the supplied 12V, 250mA AC adapter toconnect the transmitter to AC power.Cautions:• You must use a Class 2 power sourcethat supplies 12 volts DC and delivers atleast 250mA. Its center tip must be set topositive and its plug must fit the transmit-ter's DC 12V jack. The supplied adaptermeets these specifications. Using anadapter that does not meet these specifi-cations could damage the transmitter orthe adapter.• Always connect the AC adapter to thetransmitter before you connect it to ACpower. When you finish, disconnect theadapter from AC power before you dis-connect it from the transmitter.Plug the supplied AC adapter’s barrel pluginto the transmitter’s DC 12V jack, then plugthe adapter into a standard AC outlet.Charging the Rechargeable Battery PacksTo power the headphones, use the suppliednickel-metal-hydride rechargeable batterypacks. There are two batteries supplied, soyou can alternately charge one and use theother.Your transmitter has a built-in charger tocharge the rechargeable battery pack. Whenthe headphones are not in use, the batterypack can be continuously charged over sever-al days.Before using your headphones for the firsttime, you must charge the battery pack for atleast 24 hours. If the headphones’ range de-creases, you do not hear sound from the au-dio source, or the headphones’ POWERindicator is blinking, recharge the batteries. Ittakes 12 to 14 hours to completely rechargethe batteries.To charge the battery pack, plug it into the transmitter’s charging portal. The battery pack automatically be-gins charging and the CHARGE indica-tor lights. When charging is complete, unplug the bat-tery pack. The indicator turns off.Note: You can charge the battery pack withthe transmitter set to on or off.Installing a Battery Pack1. Remove the battery com-partment cover on the left earpiece by pressing the sides of the cover and lifting it off.Battery PackCharging PortalPOWER33-1186.fm Page 2 Tuesday, October 31, 2000 4:48 PM
32. Place the battery pack in the compart-ment so its metal plates contact the metaltabs inside the compartment.3. Replace the cover.Warning: Dispose of old batteries promptlyand properly. Do not burn or bury them.Caution: When you replace the battery, use aRadioShack replacement battery pack.Note: When the headphones stop operating properly, replace or recharge the battery pack.Connecting to an Audio SourceTo connect the transmitter to your audiosource, connect one end of the supplied ste-reo audio cable to the transmitter’s R/AUDIO IN(red plug) and L/AUDIO IN (white plug) jacks.Then plug the other ends into the audiosource's audio output or headphone jacks.1. To operate thetransmitter, pressPOWER. Thepower indicatorturns amber. 2. Press POWER toswitch the trans-mitter to standby.The power indi-cator turnsgreen.Note: When the transmitter is not in use,set it to standby to avoid interference withother wireless devices. OPERATION Listening SafelyTo protect your hearing, follow these guide-lines when you use headphones.• Set the volume to the lowest settingbefore you begin listening. After youbegin listening, adjust the volume to acomfortable level.• Do not listen at extremely high volumelevels. Extended high-volume listeningcan lead to permanent hearing loss.• Once you set the volume, do not increaseit. Over time, your ears adapt to the vol-ume level, so a volume level that doesnot cause discomfort might still damageyour hearing. Using Your HeadphonesYou can use multiple sets of headphones witheach transmitter. We do not recommend usingmultiple transmitters in the same area.1. Set the headphones’ channel (1 – 3) tothe same channel as the transmitter.2. Turn on the transmitter and the audiosource.3. To turn on the headphones, slide ON/OFFto ON. The POWER indicator lights. Note: If the POWER indicator is blinking,the battery level is low and you mustrecharge it before use.4. Put on the headphones and adjust VOL-UME to the desired listening level.Note: If you connected the transmitter toan audio source’s headphone jack, setthe audio source’s volume control to itsmid-position, then adjust the head-phones’ VOLUME to the desired level.5. To turn off the headphones, slide POWERON/OFF to OFF.Notes: • To preserve battery life, be sure to turn offthe headphones when you are not usingthem.• If reception is poor even when the batter-ies are fully charged and you are near theL/R AUDIO INAC JackCH Switch33-1186.fm Page 3 Tuesday, October 31, 2000 4:48 PM
33-1186AO0031AAA110A00Printed in ChinaRadioShack CorporationFort Worth, Texas 76102transmitter, try moving the transmitter to ahigher location or moving it away from theaudio source.TROUBLESHOOTINGWe do not expect you to have problems withyour headphones, but if you do, these sug-gestions might help.CAREKeep the headphones dry. Use and store theheadphones only in normal temperature envi-ronments. Handle the headphones carefully.Keep the headphones away from dust anddirt, and wipe them with a damp cloth occa-sionally to keep them looking new.Modifying or tampering with the headphones’internal components can cause a malfunctionand might invalidate their warranty and voidyour FCC authorization to operate them. Ifyour headphones are not performing as theyshould, take them to your local RadioShackstore for assistance.SPECIFICATIONSTransmitterCarrier Frequency ....................................... 911.4 – 918.4 MHzPower Source ................................................. 12V DC, 250 mAModulation Method ............................................ FM ModulationFrequency Response ............................. 50 Hz – 20 kHz (6 dB)ReceiverSensitivity .............................................. <2µV (with 20 dB S/N)S/N Ratio (@ –50dBm) ................................. >60 dB (A weight)Audio Distortion .................................................................. <2%Max. Audio output ......................................................... > 8 mWPower requirement ............................................. 3.6V 200 mAH Ni-MH rechargeable battery packSpecifications are typical; individual units might vary. Specifica-tions are subject to change and improvement without notice.Problem SolutionNo sound Be sure the headphones are turned on.Charge the headphones’ batteries.Be sure the AC adapter is plugged in and has power.Be sure all cables are securely con-nected.Be sure the audio source is turned on and tuned to an active channel.Be sure the source’s volume control is turned up.Be sure the headphones and transmit-ter are set to the same channel.Adjust the headphones’ volume con-trol.Change the position of the transmitter.Distorted audioBe sure the headphones and transmit-ter are set to the same channel.If you connected the transmitter to an audio source’s headphone jack, reduce the audio source’s volume.Charge the headphones’ batteries.Change the position of the transmitter.Limited Ninety-Day WarrantyThis product is warranted by RadioShack against manufacturing defects in ma-terial and workmanship under normal use for ninety (90) days from the date ofpurchase from RadioShack company-owned stores and authorizedRadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN,RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WAR-RANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FORA PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURA-TION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EX-CEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY ORRESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITYWITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DI-RECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCTOR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING,BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT ORANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCHDAMAGES.Some states do not allow limitations on how long an implied warranty lasts orthe exclusion or limitation of incidental or consequential damages, so the abovelimitations or exclusions may not apply to you.In the event of a product defect during the warranty period, take the productand the RadioShack sales receipt as proof of purchase date to any RadioShackstore. RadioShack will, at its option, unless otherwise provided by law:(a) correct the defect by product repair without charge for parts and labor; (b)replace the product with one of the same or similar design; or (c) refund the pur-chase price. All replaced parts and products, and products on which a refund ismade, become the property of RadioShack. New or reconditioned parts andproducts may be used in the performance of warranty service. Repaired or re-placed parts and products are warranted for the remainder of the original war-ranty period. You will be charged for repair or replacement of the product madeafter the expiration of the warranty period.This warranty does not cover: (a) damage or failure caused by or attributable toacts of God, abuse, accident, misuse, improper or abnormal usage, failure tofollow instructions, improper installation or maintenance, alteration, lightning orother incidence of excess voltage or current; (b) any repairs other than thoseprovided by a RadioShack Authorized Service Facility; (c) consumables suchas fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or in-surance costs; or (f) costs of product removal, installation, set-up service ad-justment or reinstallation.This warranty gives you specific legal rights, and you may also have otherrights which vary from state to state.RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102We Service What We Sell12/9933-1186.fm Page 4 Tuesday, October 31, 2000 4:48 PM

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