Troubleshooting guide

AUDIO INTERNATIONAL, INC. 10/97

Document #540056, Rev. IR, Model No.: PA-7500A

MODEL NO.

PA-7500A

Cabin Audio Amplifier

1.0 General Information

1.1 Introduction

This manual contains information for the installation and operation of the Audio

International, Inc. (AI) Cabin Audio Amplifier, Model No. PA-7500A

Information within this publication includes relative physical, mechanical, and

electrical characteristics. Also included within this publication are additional

references needed for installation and operation.

1.2 Purpose of the Equipment

The PA-7500A is an audio amplifier that takes low audio signal and magnifies it.

The audio amplifier can be utilized to form standard, basic building blocks that

can be arranged in almost any configuration for any size aircraft. The audio

amplifier is built to rugged aircraft standards and is easily incorporated into new

or existing cabin audio systems. It features compact size, solid state circuitry,

lightweight aluminum housing, and an attractive, durable anodized finish.

1.3 Operational Features

The PA-7500A is a professional cabin audio amplifier that delivers high

performance, excellent frequency response, and clear sound quality. This unit has

a small footprint and generates little heat yet it can produce dual output, high-

power, high fidelity sound.

The PA-7500A will produce stereo audio output for the entertainment system and

monaural audio for page / chime. The amplifier is designed to interface with the

RS-485 data bus allowing all entertainment switch panels to communicate with

the audio amplifier

1.4 Optional Equipment

Audio International, Inc. carries a complete line of speaker systems to enhance

any aircraft entertainment system. As an industry leader in aviation entertainment

systems, Audio International, Inc. can offer the perfect combination for the

quietest listening and the highest quality in personal audio entertainment.