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Studer A721 Service Manual

Studer A721
137 pages
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Table of Contents

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Studer A721 Specifications

General IconGeneral
Heads3 (erase, record, playback)
Reel Size10.5 inches
Frequency Response30Hz to 20kHz
Dimensions482 x 135 x 320 mm
Weight25 kg
Track System2-track stereo
InputsXLR
OutputsXLR

Summary

SAFETY AND FIRST AID

Servicing of Electronic Equipment

Guidelines for qualified personnel performing service on electronic equipment.

First Aid

Instructions for immediate medical assistance in case of electric shock.

General Warnings

Important safety warnings and precautions for operating the equipment.

Pin Assignment

Serial Link

Connector pinout for the 6-pin DIN connector.

Parallel Remote

Connector pinout for the 25-pin Subminiature connector.

DISASSEMBLY INSTRUCTIONS

General Information and Tools

General info, required tools, and measuring instruments for disassembly.

Unit Components Disassembly

Procedures for disassembling housing, operating panel, and tape transport units.

FUNCTIONAL DESCRIPTION

Core Unit Functions

Describes functions of the Operating Panel and Tape Transport.

Module Descriptions

Details on System Control, Capstan Motor, Remote Interface, NR-System, and Record Control modules.

ALIGNMENT INSTRUCTIONS

General Information and Tools

General information, required tools, and measuring instruments for alignment.

Mechanical Adjustments

Procedures for adjusting mechanical components like pinch rollers and heads.

SPARE PARTS

Housing Spare Parts

List of spare parts for the unit's housing and external components.

Tape Transport Spare Parts

List of spare parts for the cassette tape transport mechanism.

TECHNICAL DATA

Tape Transport Specifications

Technical details for the tape transport, including motors, tape counter, and speed.

Audio Specifications

Technical data for audio inputs, outputs, frequency response, and noise.

General Specifications

Overall specifications including power, fuses, operating conditions, and dimensions.

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