Acoustic Arc AAIAH0810US0 913 MHz Wireless Headphone System (Transmitter) User Manual

Acoustic Arc International Ltd. 913 MHz Wireless Headphone System (Transmitter)

User Manual

AH0810US913MHz Headphone SystemUser's Manual
INTRODUCTIONThank you for purchasing this system ! This 900MHz stereo wirelessheadphone system offers you advances in wireless transmission technology sothat you can listen to ultra stereo sound from your audio components upto 50meters. The transmitter is compactable to any audio sources, say DVD player,CD player, i-pod, MP3, TV set, VCR, Hi-Fi system or radio.FEATURES1. 900 MHz RF technology.2. Auto Scanning system on headphone.3. Phase Lock Loop (PLL) transmission system on transmitter.4. Automatic battery recharging (rechargeable batteries supplied).5. RF technology leaves you completely free to move around.6. Transmission is not restricted solely to line of sight.7. Rechargeable receiver headphones.8. Charger built into the transmitter.9. High quality stereo sound that is virtually interference-free.10. Auto On/Off function.PACKAGING1. RF receiver headphones2. RF transmitter3. 6V 300mA power adapter4. 3.5mm to 2 X RCA audio cord5. 2 X AAA rechargeablebatteries, Ni-MH
INSTALLATIONTRANSMITTER1.Connect the mains adapter provided to an electrical outlet.2.Connect the mains adapter cable to the DC IN input connector located onthe transmitter rear panel.3.Use the RCA audio cable to connect the transmitter's rear panel audio jackand any audio outputs present on a TV set, Hi-Fi system, VCR or radio-cassetteplayer.The red Auto On indicator led will light up as soon as you have connected boththe power adapter to the mains outlet AND the audio cable to a signal source. Ifthe Auto On indicator led remains off, switch on the audio source and increaseits output level until the red indicator light comes on.RED Led (Signal In dictator)/GREEN Led(Charge in dictator)
RECEIVER HEADPHONE1.Remove the battery door from the left hand side (L) of receiver headphone.2.Insert two rechargeable LR03/AAA size batteries. Taking care to ensurecorrect polarity.3.Put back the battery door to the left hand side of receiver headphone.4.Switch off the receiver headphones and place it into the transmitter to chargethe batteries for 24 hours before the initial use.
OPERATION1.Turn on the audio source (TV set or any audio devices) which the transmitterhas connected.2.Switch on the headphone.3.Place the headphone on your head and adjust the volume to obtain thedesired sound level.4.If you cannot find the best reception frequency, press the "Auto Scan" buttonon the headphones to get the fine scanned channel.NOTE:You should then be able to move around freely from one room to anotherwithout any interference. If interference does occur (interruptions in the signal),press the "Auto Scan" button once to find a better reception channel.AFor better stereo reception, stay approximately seven meters away fromthe transmitter when you press the "Auto Scan" button.BIf it is impossible to find a satisfactory frequency, change the channelsetting on your transmitter, then press the "Auto Scan" button on theheadphones to find the corresponding channel.To both protect the transmitter and save power, the transmitter will automaticallyswitch off after approximately four minutes if there is no audio signal, or thesignal that it receives from the audio source is too weak for proper reception. Ifhowever the signal returns to an acceptable level, then the transmitter willautomatically switch back on.
CHARGING THE BATTERIES1.Switch OFF the receiver headphone.2.To recharge the headphone batteries, place the headphones on thetransmitter, taking care to ensure that the charge contacts touch thetransmitter's charge pins and the green charging indicator is ON.3.The charge process starts automatically and the green indicator light comesON. Be sure to charge new batteries for 24 hours before using them for thefirst time in the headphones. The green indicator light will be on continuouslyduring battery charging.WARNING:** Never attempt to recharge conventional dry cells.** Never use another type of battery or non-rechargeable batteries to replacethe rechargeable (LR03/AAA) batteries supplied. When the headphones are notin use, switch OFF the headphones to avoid damaging the batteries.** The batteries must be fully charged before first use. An initial 24 hourcharge is required to guarantee an acceptable service life for the rechargeablebatteries. Always ensure that the headphones are switched to the Offposition while the batteries are charging.IMPORTANT:This unit should be operated with rechargeable batteries only. When replacingthe batteries or when disposing of the unit, always comply with applicable lawsrelating to the disposal of batteries. Please place them in a proper disposalcontainer to ensure that they are eliminated safely and in anenvironmentally-friendly way. Thank you.
TECHNICAL SPECIFICATIONSTransmission mode : UHF stereoCarrier frequency : 900MHzOperating voltage : Transmitter – 6 V 300 mA Receiver – 2.4 V (2 X rechargeable batteries, LR03/AAA size)Frequency response : 40 Hz – 11 KHzDistortion : 1 %Signal-to-noise ratio : 65 dBChannel separation : 30 dBRange : 50 meters (open area)TROUBLESHOOTINGNO SOUND-Ensure that the mains adapter is pushed fully into the power outlet andthat its cable is properly connected to the DC IN 6V connector on thetransmitter.-Ensure that the headphones On/Off switch is switched to the On-The headphones battery charge level may be too low. Recharge thebatteries or replace them with fully charged batteries.-Ensure that your TV set, Hi-Fi system or audio component is switched onand set to a channel that broadcasts an audio signal.-Use the headphone volume control to increase the sound level (onlywhen use as a wireless headphone). When use as a corded headphone,the headphone volume can be adjusted at the sound source eg. Hi-Fi, orTV, etc.-The connected audio/video equipment may not be in playback mode.Start playback on by the equipment.-The headphone output level is set too low. Adjust the volume to a suitablelevel.
DISTORTION-If distortion appears, press the “Auto Scan” button again.-Use the channel selector to change the transmitter's transmissionfrequency. Then you will need to adjust the tuning control by press the“Auto Scan” button on the headphones.-The headphones battery charge level may be too low. Recharge thebatteries or replace them with fully charged batteries.-Ensure that the volume knob setting is correct.-The headphones may be too far away from the transmitter. Move closer toit.-The audio signal input level is too low. Increase the volume from the audiosource of Hi-Fi, CD, or TV, etc.
The FCC Wants you to KnowThis device complies with part 15 of the FCC Rules. Operation is subjectto the following two conditions: (1) This device may not cause harmfulinterference, and (2) this device must accept any interference received,including interference that may cause undesired operation.Changes or modifications not expressly approved by the party responsiblefor compliance could void the user’s authority to operate the equipment.NOTE:This equipment has been tested and found to comply with thelimits for a Class B digital device, pursuant to Part 15 of the FCC Rules.These limits are designed to provide reasonable protection againstharmful interference in a residential installation.This equipment generates, uses and can radiate radio frequency energyand, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is noguarantee that interference will not occur in a particular installation.If this equipment does cause harmful interference to radio or televisionreception, which can be determined by turning the equipment off and on,the user is encouraged 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 different from thatto which the receiver is connected.Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications not expressly approved by the partyresponsible for compliance could void the user's authority to operate theequipment. Where shielded interface cables have been provided with theproduct or specified additional components or accessories elsewheredefined to be used with the installation of the product, they must be usedin order to ensure compliance with FCC regulation.Industry Canada-ICES-003CAUTIONTo comply with the limits for a Class B digital device, pursuant to Part 15 ofthe FCC Rules, this device must only be installed on computer equipmentcertified to comply with the Class B limits.This Class B digital apparatus complies with Canadian ICES-003.

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