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Marantz CD-74 Service Manual

Marantz CD-74
44 pages
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Marantz CD-74 Specifications

General IconGeneral
TypeCD Player
Disc formatCD
Signal-to-Noise Ratio100 dB
Power Consumption25W
Digital converter16-bit
CD MechanismCDM-1
Frequency Response20Hz to 20kHz
Channel separation90 dB
Total harmonic distortion0.003%
Line output2V
Output Voltage2.0 V
Digital OutputCoaxial

Summary

Shock, Fire Hazard Service Test

Laser Radiation Safety Precautions

Servicing Safety Measures

Safety measures and precautions to be taken during unit servicing.

Electrostatic Discharge Handling

How to Disassemble the Unit

Adjustment and Measurement Procedures

Sub Chassis Adjustment Guide

Calibration steps for the optical pickup assembly and related components.

Servo P.W. Board Adjustment

Calibration steps for the servo control printed circuit board.

Decoder P.W. Board Adjustment

Calibration steps for the decoder printed circuit board.

Electrical Characteristics Measurement

Test procedures for verifying performance specifications.

Description of Key Circuits

Preamplifier IC Description

Details on the UPC1373H preamplifier IC for the remote control system.

Overall Block Diagram

Wiring Diagram Overview

Printed Wiring Board Diagrams

Semiconductor Component Pinouts

Schematic Diagram Details

Remote Controller Diagrams

Exploded Views and Parts Lists

Electrical Parts List

Product Specifications

Audio Performance Specifications

Details on sound quality and output characteristics.

Optical Readout System Specs

Specifications related to the laser and disc reading mechanism.

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