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Studer 928 Service Manual

Studer 928
100 pages
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Studer 928
Mixing Console
Operating and Service Instructions
1. General
List of all Plug-In Modules
Layout and Designations, Specifi cations
Block Diagram
2. Operation
3. Jumper Settings
Alignment
4. Plug-In Units of the Input Section (1.928…)
Inputs, Groups,
AUX Master Units
Talkback/Monitoring
5. Plug-In Units of the Meter Panel
Signaling
Metering
Generator
6. EU Standard PCBs
7. Connectors
8. Wiring Lists
9. Wiring Diagrams
Bus Boards
10. 19” Rack-Mount Power Supply
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Studer 928 Specifications

General IconGeneral
BrandStuder
Model928
CategoryMusic Mixer
LanguageEnglish

Summary

Safety

First Aid

Procedures for assisting someone after an electric shock.

Installation

Instructions for installing the equipment, including checks and connections.

Female plug (IEC320), view from contact side

Details on IEC320 connector pinouts and color coding.

Mains connector strain relief

Procedure for attaching a cable clamp for mains connector strain relief.

Ambient Conditions

General

Overview of ambient conditions for normal operation as defined by standards.

Ambient temperature

Guidelines for operating temperature range and airflow requirements.

Frost and dew

Effects of condensation and ice on electronic components.

Maintenance

Maintenance and Repair

General principles and precautions for servicing the equipment.

Electrostatic Discharge (ESD) during Maintenance and Repair

Handling precautions for components sensitive to static electricity.

SMD Components

Guidelines for replacing Surface Mount Devices (SMDs).

Electromagnetic Compatibility

Electromagnetic Compatibility

Equipment compliance with EMC standards and recommendations.

Declarations of conformity

Class A Equipment - FCC Notice

FCC compliance statement for Class A digital equipment.

CE Declaration of Conformity

Declaration of conformity with EU directives and standards.

General

Utilization for the purpose intended

Describes the intended professional use and operational scope of the console.

First steps

Initial procedures after receiving the console, including unpacking and inspection.

Unpacking and inspection

Detailed steps for safely unpacking and inspecting the mixing console for damage.

Installation

Guidance on installing the unit, including general precautions and ventilation.

Adjustments, repair

Information on performing internal adjustments and necessary repair procedures.

Accessories, options

List of accessories and optional items shipped with the console.

Specifications

Technical specifications of the console, covering various parameters.

Operation

Mono input unit

Detailed explanation of the controls and functions of the mono input module.

Stereo input unit

Explanation of controls and functions for the stereo input module.

Group Unit Mono

Description of the mono group unit's functionality and controls.

Master unit A/B

Details on the master units, including limiter, AUX masters, and mono outputs.

CR Monitor unit

Explanation of the control room monitor unit functions and outputs.

Studio Monitor unit

Description of the studio monitor unit's features and controls.

Jumper settings, Alignment

Jumpers

Overview of jumper settings for various modules.

INPUT UNIT MONO

Jumper settings for insert points, Mic 2 option, and remote control.

INPUT UNIT STEREO

Jumper configurations for insert points and remote control on stereo units.

GROUP UNIT

Jumper settings for stereo return, groups, and talkback functions.

MASTER UNIT

Jumper settings for insert points, talkback, and fader start signals.

CR MONITOR

Jumper settings for CR monitor functions, cue speaker, and external inputs.

STUDIO MONITOR

Jumper settings for talkback output and volume control of studio monitors.

Alignment, general information

General information and definitions related to console alignment procedures.

Level definitions

Explanation of terminology and reference levels used in alignment.

Electrostatically sensitive components („ESE“)

Handling guidelines for components sensitive to static electricity.

Required test equipment and tools

List of necessary equipment and tools for console alignment.

Measurement basics

Fundamental principles for taking measurements during alignment.

Measuring set-up

Diagrams and descriptions for setting up test equipment.

Demagnetizing the input transformers

Procedure for demagnetizing input transformers to prevent remanence.

Generator level

Procedure for setting the generator bus level during alignment.

Input unit mono

Alignment steps for mono input units, covering distortion and level settings.

Input unit stereo

Alignment procedures for stereo input units, including distortion and level adjustments.

Master units A/B

Alignment steps for master units, covering fader calibration, distortion, and output levels.

Group unit

Alignment procedures for group units, including fader calibration and limiter settings.

CR Monitor unit

Alignment steps for the CR monitor unit, including distortion and DIM attenuation.

Studio Monitor unit

Alignment procedures for the studio monitor unit, covering distortion and level settings.

VCA masters (on CR Monitor and Studio Monitor units)

Alignment steps for VCA master faders on CR and Studio monitor units.

AUX meters

Alignment procedures for AUX meters using PPM and VU characteristics.

CIRCUIT DIAGRAMS

Plug-In Units of the Input Section

Lists structure lists and block diagrams for input section modules.

Synopsis: Assemblies, Circuit Diagrams, Component Layouts, Parts Lists

Table listing assemblies, circuit diagrams, layouts, and parts lists.

Input Unit Mono

Details on the Mono Input Unit, including assembly structure and diagrams.

Group Unit Mono

Details on the Mono Group Unit, including assembly structure and diagrams.

Input Unit Stereo, HL, with EQ

Details on the Stereo Input Unit, including assembly structure and diagrams.

Master Unit A

Details on Master Unit A, including assembly structure and diagrams.

Master Unit B

Details on Master Unit B, including assembly structure and diagrams.

CR Monitor Unit

Details on the CR Monitor Unit, including assembly structure and diagrams.

Studio Monitor Unit

Details on the Studio Monitor Unit, including assembly structure and diagrams.

Input MIC Switch Board

Details on the Input MIC Switch Board, including assembly and diagrams.

MIYA Switch Board

Details on MIYA switch boards, including components and types.

Input Main Mono Board

Details on the Input Main Mono Board, including assembly and diagrams.

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