TROUBLESHOOTING

1.LED Power indicator is not illuminated: Make sure the 15V AC power supply (included) is plugged into a “live” 120 V outlet. Also, check to make sure that the 15V AC power supply’s plug is seated cor- rectly in the power jack of the AVDA-3. If the LED still fails to illuminate, use a volt- meter to measure the 15V AC plug and verify proper voltage. Replace the adapter if necessary. If voltage is correct, replace the AVDA-3.

2.LED power indicator is illuminated but there is no picture or sound: Verify proper connection of input and output cables. Test the source component for proper operation.

3.Audio signal exhibits an audible low fre- quency hum: Hum is most commonly caused by what is termed a "ground loop". Ground loops cause a constant and audible

60Hz hum on the audio signal. This prob- lem occurs when the ground potential of a particular connected component in the system differs from that of any other con-

SPECIFICATIONS

nected component. It is most commonly caused by incoming Cable TV feeds or con- nected components powered by separate AC power circuits. Correcting the ground potential difference at its source is always the best (but not always the easiest) way to correct a ground loop. Using signal isola- tion transformers offers an easier (but per- haps more costly solution) to this problem.

4.Picture has horizontal bar that moves up or down vertically: This is the effect a ground loop has on a video signal. See Troubleshooting #3 for details on ground loops.

5.Picture and/or sound quality is distorted or dim compared to the original source sig- nal: This is most likely due to signal loss on the audio or video cables connecting the components, especially if they are longer than 15 ft. Verify proper connection and operation of cables and, if necessary, bench test the AVDA-3 with short cables to verify normal operation. Replace any long runs of cable causing signal loss with upgraded cable.

I N S T A L L A T I O N & O P E R A T I O N G U I D E

AVDA-3

Audio/Video Distribution Amplifier

INTRODUCTION

The Niles AVDA-3 is a source-level audio and base-band video distribution amplifier. It incorporates an audio input (right and left) and a video input, which are actively distrib- uted to three audio/video outputs. It is especially useful when connecting an audio/video

AUDIO

Input impedance . . . . . . . . . . . . . . . . . . . . . . . .100K Output Impedance . . . . . . . . . . . . . . . . . .100 ohms Frequency Response . . . . . . .flat from DC to >20KHz Signal to Noise Ratio . . . . . . .>80 dB reference 1 volt Crosstalk . . . . . . . . . . . . . . . . . . . . .070 dB at 1 KHz Total Harmonic Distortion . .0.003% 20Hz to 20 KHz Maximum Signal Input . . . . . . . . . . . . . .6 Volts RMS Output Gain . . . . . . . . . . . . . . . . . . . . . . . . . .UNITY

VIDEO

Video Bandwidth . . . . . . . . . . . . . . . . . .DC to 7MHz Maximum Input Signal . . . . . . . .2 volts peak to peak Input Impedance . . . . . . . . . . . . . . . . . . . . .75 ohms Output Impedance . . . . . . . . . . . . . . . . . . .75 ohms Output Gain . . . . . . . . . . . . . . . . . . . . . . . . . .UNITY

Power Requirements . . . . . . . . . . . . .15 VAC 500 mA ESD Protection . . . . . . . . .meets IEC 1000-4-2 level 4 Dimensions . . . . . . . . . . . . . . .6.81" x 3.875" x 1.35"

source component to multiple zone amplifiers and/or RF modulators.

FEATURES AND BENEFITS

■ IC operational amplifiers for clear, stable video images and smooth, accurate sound.

■ Gold plated RCA connectors for reliable performance.

■ Audio/video cascade outputs feature with automatic video impedance matching for

simple system expansion and optimal picture quality.

■ Space saving, inline power adapter for cleaner installations.

■ Ideal for residential and commercial installations.

■ 100% factory tested.

■ Limited two year parts and labor warranty.

Niles Audio Corporation

www.nilesaudio.com

12331 S.W. 130 Street Miami, Florida, 33186 Tel: (305) 238-4373 Fax: (305) 238-0185

©1999 Niles Audio Corporation. All rights reserved. Niles, the Niles logo and Blending High Fidelity and Architecture are reg- istered trademarks of Niles Audio Corporation. Because we strive to improve our products, Niles reserves the right to change product specifications without notice. The technical and other information contained herein is not intended to set forth all tech- nical and other specifications of Niles products. Additional information can be obtained on-line at www.nilesaudio.com or by calling Niles at 1-800-289-4434. Printed in USA 10/99 DS00256A

■ Proudly made in the U.S.A.

B L E N D I N G H I G H F I D E L I T Y A N D A R C H I T E C T U R E ®

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Niles Audio AVDA-3 specifications Troubleshooting, Introduction, Features and Benefits, Niles Audio Corporation
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AVDA-3 specifications

The Niles Audio AVDA-3 is a robust and versatile audio distribution amplifier designed for both residential and commercial audio systems. This device serves as an essential component in multi-room audio setups, enabling users to enjoy high-quality sound throughout an entire space without sacrificing audio performance.

One of the standout features of the AVDA-3 is its ability to deliver three independent channels of amplification. Each channel can support various audio sources, making it ideal for situations where different rooms or zones require distinct audio streams. With its advanced circuitry, the AVDA-3 efficiently distributes power to connected speakers, ensuring that every area receives clear and balanced sound.

The AVDA-3 employs sophisticated technologies that enhance both sound quality and user experience. With a total output power of 30 watts per channel, it provides ample power for most residential applications. Its Class D amplification technology offers several advantages, including high efficiency, minimal heat generation, and a compact design. This allows the amplifier to be integrated seamlessly into various home environments, whether it's in a dedicated audio rack or mounted directly in a media cabinet.

Users will appreciate the intuitive control features of the AVDA-3. The device supports both infrared and RS-232 control protocols, making it compatible with a wide range of home automation systems. This flexibility ensures that users can easily manage their audio distribution in conjunction with other smart home devices.

In addition, the Niles Audio AVDA-3 features advanced protection circuitry to safeguard both the amplifier and connected speakers from potential issues such as short circuits and overheating. This reliability is crucial, especially in systems where the equipment may be in continuous use.

The compact design of the AVDA-3 also stands out, making it easy to install in various configurations. It is designed for easy access to inputs and outputs, enabling quick setup and adjustments as needed. With its sleek and unobtrusive look, it blends well with any decor.

Overall, the Niles Audio AVDA-3 is an impressive solution for those seeking high-quality audio distribution capabilities. Its combination of multiple channels, advanced technologies, and user-friendly features make it a preferred choice for audiophiles and professionals looking to create an immersive audio experience throughout their spaces. Whether for home theater setups or background music in a commercial establishment, the AVDA-3 is a reliable and efficient amplifier that delivers outstanding performance.
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