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Revox B780 - Service Manual

Revox B780
107 pages
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Table of Contents

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Revox B780 Specifications

General IconGeneral
TypeStereo Receiver
Frequency Response20Hz to 20kHz
Input Sensitivity2.5mV (MM), 150mV (line)
Tuning RangeFM, MW
Speaker Load Impedance4Ω - 16Ω
Input Impedance47kΩ

Summary

GENERAL INFORMATION

INDEX OF OPERATING ELEMENTS

Lists all controls, indicators, and their functions.

SOCKET LAYOUTS

Details the layout and pin assignments of connectors.

DISASSEMBLY

REMOVING THE TOP COVER PLATE

Instructions for removing the top cover plates.

REMOVING THE SIDE COVERS

Steps for removing the side covers.

SOCKET LAYOUTS

Diagrams showing socket pin assignments.

FUNCTIONAL DESCRIPTION

TUNER SECTION

Explanation of the tuner's operation and components.

LOGIC SECTION

Description of the logic circuits and microprocessor.

PREAMPLIFIER SECTION

Details of the preamplifier circuit.

DOLBY PROCESSOR

Explanation of the Dolby processor function.

POWER SUPPLY

Description of the power supply unit.

ADJUSTMENT INSTRUCTIONS

REQUIRED MEASURING INSTRUMENTS

List of necessary test equipment for calibration.

GENERAL ADJUSTMENT PROCEDURES

General guidelines and notes for adjustments.

SYNTHESIZER CALIBRATION

Steps for calibrating the synthesizer's quartz reference.

TUNER AND AMPLIFIER ADJUSTMENTS

Procedures for adjusting tuner and amplifier stages.

SCHEMATICS

CIRCUIT DIAGRAMS

Detailed circuit diagrams for various sections.

PARTS LIST

REPLACEMENT PARTS

List of spare parts with specifications.

TECHNICAL SPECIFICATIONS

ELECTRICAL CHARACTERISTICS

Detailed performance specifications and measurements.

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