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After initialization, the transmit light will go out. Initially, set the transmitter volume control to a middle setting. Once audio is detected at the audio input, the transmit light will go on and the transmitter will transmit the audio signal. When audio is no longer detected, the transmitter will go into standby mode after approximately one minute. The transmit light will go out. During standby mode, no signal is transmitted. Transmit light 5.8 GHz Digital Audio Transmitter R TRANSMIT Transmitter volume control L R DC 9V L R Page 6 User and Installation Guide R St ep5Operating the amplifiers As soon as a valid transmitter signal is received by the amplifiers, the amplifiers will output the amplified audio signal to the speaker outputs. The amplfier marked “LEFT” will output the left audio channel and the amplifier marked “RIGHT” will output the right channel. You can change the audio level by adjusting each amplifier volume control. In order to achieve maximum transmission quality, the transmitter volume control should be set to match the audio level of your audio source as follows: 1) Set the amplifier volume control to a low level to prevent clipping inside the amplifiers. 2) Set your audio source to output the maximum audio level that you will encounter during normal operation such that both the left and right channel are balanced. 3) Turn the transmitter level control knob to the position that yields maximum audio loudness to the speakers without any clipping (distortion). If the transmitter level is set too low, the dynamics of the transmission are not fully used. If the level is set too high, audio clipping (distortion) will occur inside the transmitter. 4) Turn each amplifier volume control to a setting that yields the desired volume from the speakers such that the volume at both speakers is balanced. If no audio signal is received for more than 2 minutes, the amplifiers will go into standby mode (power-down mode). Amplifier volume control Model 1600 DC 36V Page 7 User and Installation Guide R Troubleshooting Problem Possible Cause Solution The transmit light does not go on after DC power is applied to the transmitter Faulty AC adapter or faulty power outlet Check the power outlet and the AC adapter; if possible, check for correct voltage of the AC adapter. The transmit light goes out after a few seconds and does No audio present at audio input Check the audio connection to the transmitter and ensure that there is audio present. not light again Transmitter hung up Disconnect and then reconnect DC power. No audio at amplifier Faulty AC adapter or faulty power outlet See under “Faulty AC adapter or faulty power outlet“ above. Transmitter volume control set too low Adjust the transmitter volume control. Amplifier volume control set too low Adjust the amplifier volume control. Strong interference See under “Strong Interference“ on next page. Audio is distorted Transmitter volume control set too high Adjust the transmitter volume control until clipping stops. Amplifier volume control set too high Adjust the amplifier volume control until clipping stops. Strong interference See under “Strong Interference“ on next page. Speaker audio level is too low Transmitter volume control set too low Adjust the transmitter volume control to achieve desired audio level. Amplifier volume control set too low Adjust the amplifier volume control to achieve desired audio level. Audio signal too weak Increase the output level of the audio source (connect transmitter to an adjustable output by using an adapter if necessary). Page 8 User and Installation Guide R Problem Possible Cause Solution Audio drops out intermittently or crackles Strong interference In some cases, there may be strong interference preventing proper reception of the audio signal which can be caused by 5.8 GHz cordless telephones or 5.8 GHz wireless networks. Either eliminate the interference, locate the base unit of the cordless phone in another room, set the wireless network to use the 5.1 GHz frequency band rather than 5.8 GHz, relocate the transmitter, relocate or reorient the amplifier to improve reception. Unstable power supply Ensure that the power outlet delivers a stable voltage. Very strong surges or voltage fluctuations may cause audio dropouts. Try using a surge protector. Audio is noisy Strong interference See under “Strong Interference“ above. Transmitter volume control set too low Adjust the transmitter volume control. Audio signal too weak See under “Audio signal too weak“ on previous page. Transmitter range is extremely short Strong interference See under “Strong Interference“ above. Too many obstacles Audio will drop out if there are too many obstacles between the transmitter and the amplifier (see page 4), try relocating the amplifier or transmitter to improve reception. For more information, including a detailed troubleshooting guide, visit the Amphony web site at: Page 9 User and Installation Guide R Technical Specific...

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