Denon DCD-485 Service Manual

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SERVICE MANUAL
Some illustration using in this service manual is slightly from the actual set.
MODEL
DCD-485/685
STEREO CD PLAYER
DCD-485
DCD-685
Hi-Fi Component
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7
6 3
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2
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4 2
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T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Denon DCD-485 Specifications

General

Brand	Denon
Model	DCD-485
Category	CD Player
Language	English

Summary

SAFETY PRECAUTIONS

LEAKAGE CURRENT CHECK

Procedure to ensure safety before returning the unit.

SPECIFICATIONS

AUDIO

Technical audio performance parameters.

GENERAL CHARACTERISTICS

FUNCTIONS AND DISPLAY

DISASSENBLY

Top Cover

Procedure for removing the top cover.

Front Panel

Procedure for removing the front panel.

CD Mecha. Unit

Procedure for removing the CD mecha. unit.

Main P.W.B.

Procedure for removing the main power board.

CD TEST MODE

Setting of the test mode

Steps to activate and exit CD test mode.

Explanation of each button

Operation of buttons during test mode.

DISC discrimination, adjustment

Procedure for disc discrimination and adjustment.

Checking of servo state

Procedure for checking servo states.

NOTE FOR HANDLING OF LASER PICK-UP

Description of the Components

Details of the laser pick-up components.

Pin Connector

Caution for Handling the Laser Pick-up

Handle with Care

Precautions for storage and general handling.

Laser Diode (LD)

Safety and handling guidelines for the laser diode.

Actuator

Handling and cleaning instructions for the actuator.

Handling

General handling guidelines for the pick-up.

Deterioration

SEMICONDUCTORS

µPD78044FGF-188-3B9 (IC601)

µPD78044FGF-188-3B9 Terminal Function

IC Details

LA6559 (IC101) and LA9241M (IC103)

PCM1735E (IC301) and BU2616F (IC102)

LC78625E (IC106) Details

NOTE FOR PARTS LIST

Resistors

Capacitors

PARTS LIST OF P.W.B. UNIT ASS'Y

SEMICONDUCTORS GROUP

RESISTORS GROUP

EXPLODED VIEW (Front Panel)

DCD-485 Front Panel Sub Assembly

DCD-685 Front Panel Sub Assembly

EXPLODED VIEW (Overall Assembly)

PARTS LIST OF CD MECHANISM UNIT

EXPLODED VIEW OF CD MECHANISM UNIT

SCHEMATIC DIAGRAM (for DCD-485)

SCHEMATIC DIAGRAM (for DCD-685)