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Denon DCD-3520 Service Manual

Denon DCD-3520
51 pages
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DENON
SERVICE
MANUAL
Hi-Fi
Component
4
STEREO
CD
PLAYER
MODEL
DCD-3520
PARTS
LIST
OF
FG-621MECHA
UNIT...
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40
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ata
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Beet
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ate
aed
41
~
43
WIRING
DIAGRAM
...
20.0
1.
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eect
nes
44
SEMICONDUCTORS»
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6
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8
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ch
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45,
46
SCHEMATIC
DIAGRAM
..
1...
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eae
47,
48
NIPPON
COLUMBIA
CO.
LTD.
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Denon DCD-3520 Specifications

General IconGeneral
TypeCD Player
Disc formatCD, CD-R, CD-RW
Frequency Response2 Hz - 20 kHz
Dynamic range100 dB
Channel separation100 dB
Line output2.0 Vrms
Digital outputsCoaxial, Optical
Dimensions434 x 130 x 360 mm

Summary

Critical Safety Information

General Safety Precautions and Labels

Covers essential safety warnings, precautions, unit labels, and British model specifics.

Audio Set Safety Guidelines

Installation, Usage, and Servicing Safety

Guidelines for safe installation, operation, and servicing of the audio set.

DCD-3520 Key Features

Player Operation and Remote Control

Initial Setup and Precautions

Shipping Lock Release and Initial Setup

Instructions for releasing the shipping lock and initial setup.

Connecting the Player

Disc Loading and Handling

Normal and Advanced CD Playback

Advanced Playback Modes

Advanced Playback Modes (Cont.)

Disc Care and Installation

Remote Control Unit Operation

Troubleshooting Common Issues

Operation and Sound Problems

Diagnosing common problems like disc loading, playback, sound, or remote issues.

Laser Pick-up Handling and Care

Laser Pick-up Safety and Maintenance

Handling, Storage, and Cleaning

Instructions for handling, storing, and cleaning the laser pick-up.

Laser Diode Safety and Deterioration

Critical safety for laser diode and methods for diagnosing pick-up deterioration.

Disassembly Guide

Internal Component Removal

Housing Assembly and Laser Pick-up Removal

Procedures for removing the housing assembly and the laser pick-up unit.

Mechanism Unit Adjustments

Turntable and Spindle Motor Adjustment

Procedures for adjusting the turntable height and spindle motor.

Service Program and Adjustment Overview

Starting Service Mode and Controls

How to initiate the service program and overview of button functions.

Detailed Adjustment Procedures

Detailed Adjustment Procedures (Cont.)

PLL and Slide Offset Adjustments

Procedures for adjusting the PLL and slide offset.

Tracking Offset Adjustment

Adjusting the tracking offset by equalizing waveform amplitude.

Focus Gain Adjustment

Adjusting focus gain to symmetrize Lissajous figures on the oscilloscope.

Focus Offset Adjustment

Minimizing pattern jitter by adjusting the focus offset.

Tracking Gain and Offset Check

Adjusting tracking gain and checking tracking offset.

Super Linear Converter Adjustment

Adjusting SLC volume controls for optimal performance.

Heat Run Mode Functionality

Heat Run Mode Operation and Errors

Instructions for activating, operating, and troubleshooting heat run mode.

IC Terminal Function Lists

IC Terminal Function Lists (Cont.)

FG-621 Mecha Unit Details

System Wiring Diagram

Schematic Diagrams

Schematic Diagrams (Cont.)

Power Supply Unit Schematic and Warnings

Schematics for Power Supply unit and important operational warnings.

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