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AudioArts Engineering D-75 User Manual

AudioArts Engineering D-75
128 pages
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D-75
Digital Audio Console
TECHNICAL MANUAL
September 2004

Table of Contents

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AudioArts Engineering D-75 Specifications

General IconGeneral
BrandAudioArts Engineering
ModelD-75
CategoryRecording Equipment
LanguageEnglish

Summary

General Safety and Compliance Information

FCC Compliance and Radio Frequency Notice

Equipment compliance with FCC rules for digital devices and potential interference.

Modification Warning

Warning against unauthorized modifications to the equipment.

Handling Static Sensitive Devices and Module Replacement

Static Discharge Precautions

Standard precautions for handling individual modules to prevent static damage.

Replacing Modules in a Powered-up Console

Procedure and precautions for replacing modules while the console is powered.

Audio Levels and Gain Structure

General Audio Level Considerations

Hybrid nature of consoles, analog/digital sources and outputs.

Console Gain Structure Stages

Breakdown of gain stages: ADC input, DSP gain, and DAC output.

Audio Reference Levels and Input Specifications

Console Calibration and Reference Level

Factory calibration for digital to analog reference level, 20dB headroom.

Typical Input Level Ranges

Nominal and maximum levels for mic, analog, and digital inputs.

Chapter 1: Installation and Power

Console Setup: Unpacking, Mounting, and Grounding

Procedures for unpacking, mounting, and grounding the console.

Power Supply and Energizing

Details on the SPS-100 power supply unit and energizing the console.

Audio and Control Wiring

General procedures for wiring audio and control connections using DB-25 connectors.

Module Installation and Wiring Tools

Console module layout, daughter card installation, and crimp tool usage instructions.

Chapter 2: Quad Mic Preamp (QMP-4)

QMP-4 Module Overview

Description of the quad mono microphone preamplifier module.

Internal Programming and Phantom Power

Configuration via dipswitch SW1 for phantom power and other options.

QMP-4 Hook-ups, Pinouts, and Installation

Wiring connections, pinouts, and installing optional modules.

Chapter 3: Stereo Line Input (IN-75)

IN-75 Module Overview and Features

Function of IN-75 modules for mic/line inputs, source selection, and features like CUE.

Internal Programming Options

Module configuration via dipswitch SW1 for mutes, tallies, timer restart, talkback.

Signal Attenuation and Fader Start

12dB attenuation and European Fader Start features.

IN-75 Hook-ups and Pinouts

Wiring for analog/digital inputs, control connections, and DB-25 pinouts.

Chapter 4: Output Module (OM-75)

OM-75 Module Overview and Features

Function of the master output module for Program, Audition, Auxiliary, Utility outputs and CUE indicator.

Sampling Frequency Configuration

How to change the console output sample rate using crystals and dipswitches.

OM-75 Hook-ups and Pinouts

Wiring for digital audio outputs, external analog inputs, and analog audio outputs with DB-25 pinouts.

Chapter 5: Control Room Module (CR-75)

CR-75 Module Overview and Functions

Operator's monitor module for listening to console outputs and external inputs, including speaker/headphone circuits.

Internal Programming Options

Configuration via dipswitch SW1 for cue interrupt modes and tally logic.

CR-75 Hook-ups and Pinouts

Wiring for external stereo inputs and module outputs including cue, headphone, and tally with DB-25 pinouts.

Chapter 6: Studio Control Module (SC-75)

SC-75 Module Overview and Features

Module for studio monitor circuit, source selection, talkback switch, and external inputs.

Internal Programming Options

Configuration via dipswitch SW1 for talkback mute/dim and studio dim/mute functions.

SC-75 Hook-ups and Pinouts

Wiring for external audio inputs and module outputs including talkback and tally 2 with DB-25 pinouts.

Chapter 7: Superphone Input (SP-75)

SP-75 Module Overview and Caller Set-Ups

Function of SP-75 for telephone call-ins, handling callers, and pre-air communication.

Automatic Features, Inputs/Outputs, and Programming

Module features like automatic cue dropout, inputs/outputs, and programming for cue/mutes.

SP-75 Hook-ups and Pinouts

Wiring for audio and control signals via DB-25 connectors.

Chapter 8: Line Preselect Module (LS-75)

LS-75 Module Overview and Options

Optional module for selecting and routing stereo line sources to expand input capability.

LS-75 Hook-ups and Pinouts

Wiring for audio inputs and outputs via DB-25 connectors.

Chapter 9: Tape Remote Module (TR-75)

TR-75 Module Overview

Optional module for controlling remote reel-to-reel machines with START/STOP or full function buttons.

TR-75 DB Connector Pinouts

Pinout details for START/STOP and full-function control I/O ports.

Chapter 10: Meterbridge

Meterbridge Overview and Digital Timer

Description of meterbridge components including LED meters, timer display, cue speaker, and clock.

Console Clock Setup and Operation

Setting the time, capacitor backup, and operational modes including 24-hour and external sync.

UTIL Defeat, B Source Logic, and Sync

Features like UTIL defeat, B source logic, and external AES sync for clock and timer.

Appendix: Replacement Parts

User-Replaceable Parts Identification

Lists components that may need maintenance or replacement during normal use.

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