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Anleitung Zusammenfassung
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 pp ± 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! L AUDIO IN DATA OUT R DC 9V L R AUDIO LINE OUT Audio Source Transmitter DC9V 300 mA Power outlet AC adapter Never connect the DATA OUT output to an audio source since this may damage both the transmitter and the audio equipment ! Page 1 User and Installation Guide R Placing the transmitter The 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. 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 Example 2: Improved transmitter location transmitter location Page 2 User and Installation Guide R Installing the headphone batteries Two AA (UM-3, R6, Mignon -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 batteries conforming to local waste disposal rules. Push 1 2 3Lift Page 3 User and Installation Guide R 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 ATTENTION! hearing impairments! Also, switching between different audio sources, connecting and dis...