Amphony 1000 User's Manual
Contents
1. 1 5 V batteries are required to operate the headphones Rechargable batteries with a sufficiently high voltage can be used as well Choosing batteries with a high capacity mAh will extend operating time There are two battery compartments located on both sides each housing one battery To access each battery compartment push on the outer edge of the battery lid This will release the battery lid Then lift the middle portion of the battery lid to gain access to the battery compartment Insert the battery by pressing the minus pole of the battery against the spring at the bottom of the battery compartment until the plus pole can slide into the battery compartment The battery should snap into place Be sure to only use batteries with a well formed plus pole to ensure proper contact between the plus pole of the battery and the plus pole inside the battery compartment and also to ensure that the battery will not slide out of the battery compartment unintentionally Finally close the battery lid by pushing the middle section It should snap into the closed position To replace the batteries open the battery lid as described above and pull the battery out of the battery compartment by pushing the battery towards the bottom until the plus pole is released and slides out ATTENTION Never leave batteries inside the headphones for very long periods of time to prevent any damage to the headphones from leaking batteries Dispose of spent batt2. What Is Possible Why What to Do Happening Transmit light of Faulty AC adapter Check the power outlet and the transmitter does or faulty power outlet AC adapter if possible check for not light when correct voltage of the adapter DC power is applied Transmit light No audio present at Check the audio connection to goes out after 5 audio input the transmitter and ensure that seconds and there is audio present again DC power No audio at Batteries empty or Check battery voltage also headphones plus contact of check that plus contact of both batteries deformed batteries touch plus contact of battery compartment replace batteries if necessa minimum headphones Receiver hung up Switch headphone power off and on Audio is Audio level too high Ensure that the audio level distorted provided by the audio device conforms to the line output level If possible lower the audio level Audio at Strong interference In some cases there may be headphones strong interference preventing drops out proper transmission of the audio intermittently signal such as microwave ovens directional data or video trans mission devices etc Try to either eliminate the interference relocate the transmitter or use RangeBooster transmitters to improve reception Batteries empty Check the batteries and replace them if necessary Unstable power Make sure that the power outlet supply delivers a stable voltage Very strong surges or voltage
3. T AS PROVIDED HEREIN WE MAKE NO WARRANTIES EXPRESS OR IMPLIED INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WE RESERVE THE RIGHT TO REFUSE TO HONOR THIS WARRANTY IF WE DETERMINE ANY OF THE ABOVE EXCEPTIONS TO HAVE CAUSED THIS EQUIPMENT NOT TO HAVE PERFORMED PROPERLY THIS WARRANTY SHALL BE VOID IF ANY FACTORY APPLIED IDENTIFICATION MARK INCLUDING BUT NOT LIMITED TO SERIAL NUMBERS AND WARRANTY LABELS HAS BEEN ALTERED OR REMOVED THIS WARRANTY SHALL ALSO BE VOID IF THE TRANSMITTER OR HEADPHONES HAVE BEEN OPENED BY AN UNAUTHORIZED PERSON with the exception of opening the battery lid on the outside of the headphones This warranty gives you specific legal rights which may vary from state to state Some states do not allow the exclusion or limitation of incidental or consequential damages or allow limitations on the duration of an implied warranty so those limitations may not apply to you Note No responsibility is assumed for the presence of interference outside of Amphony s control such as other transmitters or microwave ovens which may hamper proper signal reception
4. User and Installation Guide 2 4 GHz DIGITAL Wireless Headphones Model 1000 Amphony Userand instalation Guide Ai phony Unpacking Check that this package contains One set of 2 4 GHz Digital Wireless Headphones one 2 4 GHz Digital Audio transmitter one AC adapter one dual RCA audio cable Connecting the transmitter The transmitter connects to a line out interface via the supplied RCA cable Most audio devices provide a line out interface If no line out interface is available the transmitter can also be connected to other audio outputs by using an appropriate adapter It should be noted that the audio level of the audio output should conform to the standard line output level V 2 8 V maximum If the audio level is too low the dynamic range of the transmitter is not fully used If the audio level is too high clipping at high audio levels may occur If clipping occurs either use an adjustable output such as a headphones output or use an Amphony audio level attenuator Connect the DC power input with the supplied AC adapter The use of a surge protector is recommended to protect the transmitter from power surges ATTENTION Never connect the DATA OUT output to an audio source since this may damage both the transmitter and the audio equipment AUDIO p LINE OUT a OG R Power outlet Audio Source Page 1 User and Installation Guide Placing the transmitter The
5. cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Caution Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Printed in China Page 6 Limited warranty WHAT YOUR WARRANTY COVERS This warranty extends only to the original user of the equipment you your and is limited to the purchase price of each part Amphony and it s affiliated companies we our us warrant this Wireless Headphone Set against defects in materials or workmanship as follows LABOR For a period of ninety 90 days from the original date of purchase if we determine that the equipment is defective subject to the limitations of this warranty we will replace it at no charge for labor We warrant any such work done against defects in materials or workmanship for the remaining portion of the original warranty period PARTS For a period of one 1 year from the original date of purchase we will supply at no charge new or rebuilt replacement parts in exchange for parts we determine are defective subject to the limitations of this warranty We warrant any such replacement parts against defects in materials or workmanship for the remaining portion of the original warranty period Note Parts means items included in this package It does not inclu
6. de other parts purchased seperately WHAT YOUR WARRANTY DOES NOT COVER This warranty does not cover consumer instruction physical setup or adjustment of any consumer electronic equipment headphone batteries or signal transmission problems This warranty does not cover cosmetic damage damage due to the affixing of any attachment not provided with the product loss of parts connecting the product to any but the specified receptacles lightning electrical surges fire flood or other acts of God accident misuse abuse repair or alteration by other than authorized service personnel negligence commercial or institutional use or improper or neglected maintenance This warranty does not cover equipment sold AS IS or WITH ALL FAULTS equipment removal or reinstallation shipping damage if the equipment was not packed and shipped in the manner we prescribe nor equipment purchased serviced or operated outside the contiguous United States of America LEGAL LIMITATIONS REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS YOUR EXCLUSIVE REMEDY WE SHALL NOT BE HELD LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY ON THIS EQUIPMENT NOR FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF OR INABILITY TO USE THIS EQUIPMENT UNDER NO CIRCUMSTANCES SHALL OUR LIABILITY IF ANY EXCEED THE PURCHASE PRICE PAID FOR THIS EQUIPMENT EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW EXCEP
7. eries conforming to local waste disposal rules a Page 3 User and Installation Guide Amphony Operating the headphones After powering up the transmitter the transmit light will light for approximately 5 seconds while the transmitter initializes After initialization the transmit light will go out Once audio is detected at the audio input the transmit light will light and the transmitter will transmit the audio signal Set the volume control of the headphones to minimum Then switch on the headphones and slowly increase volume After each use be sure to switch off the headphones to extend battery life When no audio is present anymore the transmitter will go into standby mode after approximately 1 minute The transmit light will go out During standby mode no signal is transmitted If the headphones are not used for an extended period of time remove the AC adapter from the power outlet Listening over headphones at high audio levels can cause hearing impairments Also switching between different audio sources connecting and disconnecting the transmitter and the transmitter going into standby mode can cause loud clicks and pops which can impair your hearing Therefore always set the volume control to minimum ATTENTION Transmit light 2 4GHz Digtal Audio Transmiter Yo Aa Ve Amphony Page 4 User and Installation Guide Amphony Problems and Solutions Table
8. fluctuations may cause audio dropouts Try using a surge protector For more information including a detailed troubleshooting guide visit the Amphony web site at www amphony com Page 5 Userand instalation Guide Amphony Technical Specifications Transmitter Audio transmission method Digital Transmitter frequency 2 4 GHz Signal to Noise ratio A weighted typ 93 dB Dynamic range typ 93 dB Channel separation typ 91 dB Harmonic distortion typ 88 dB Error correction 1 2 rate FEC Audio sampling method 64 times oversampling Transmitted data rate gt 3 Mbps Data available at high speed data port Max Transmitter output power 1 mW Transmitter operating range without RangeBooster modules max 200 ft line of sight max 50 ft through walls and ceilings Headphones Type dynamic closed Operating time max 100 hours with two AA batteries Frequency response 20 Hz 24 kHz Maximum sound pressure level 113 dB Copyright C 2001 Amphony All rights reserved The information contained herein is subject to change without notice Revisions may be issued to advise of such changes and or additions All product names trade names or corporate names mentioned in this document are acknowledged to be the proprietary property of the registered owners FCC ID PMJT1000 This device complies with part 15 of the FCC Rules Operation is subjected to the following two conditions 1 This device may not
9. operating range essentially depends on how many obstacles there are between the transmitter and the headphones Therefore it should be carefully considered where to place the transmitter Amphony Below two examples are given In the first example there are 4 walls between the transmitter and the receiver The transmission may be interrupted By locating the transmitter such as in the second example reliable transmission to all of the 6 rooms is possible Also the elevation of the transmitter as well as the presence of reflecting walls will influence the range It is suggested to experiment in order to find the best location for the transmitter If sufficient coverage can not be achieved by changing the location of the transmitter then the use of RangeBooster transmitters is suggested These RangeBooster transmitters are available as an accessory for your 2 4 GHz Digital Wireless Headphones from Amphony and can be located in areas where signal reception is difficult RangeBooster transmitters connect to the DATA OUT output of the transmitter and receive the signal in a digital format without any degradation Any number of RangeBooster transmitters can be used to extend the operating range almost indefinitely Example 1 Poorly chosen transmitter location Example 2 Improved transmitter location Page 2 User and Installation Guide Amphony Installing the headphone batteries Two AA UM 3 R6 Mignon
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