Denon DCM-380 Bedienungsanleitung

SERVICE MANUAL

STEREO CD PLAYER

MODEL DCM-380/280

For U.S.A., Canada, Europe, U.K.

& Australia model

1Some illustrations using in this service manual are slightly different from the actual set.

16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN

Telephone: 03 (3837) 5321

X-0162 NC 0211

DCM-380/280

SAFETY PRECAUTIONS

The following check should be performed for the continued protection of the customer and service technician.

LEAKAGE CURRENT CHECK

Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to

chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either

side of the power cord is less than 460 kohms, the unit is defective.

DCM-380/280

BLOCK DIAGRAM

DCM-380/280

WIRING DIAGRAM

CD MECHANISM

CD PICKUP

C3P101 CP403 CP402

MAIN SECTION

CP501

CP502

TRANS

AC CORD

POWER SWITCH

CN706

SW701

CN802

CN801

CP705 CP704

CN101 CP401

FRONT SECTION

JK302

CN301

DCM-380/280

DISASSEMBLY

(To reassemble, reverse disassembly.)

1. TOP COVER

Remove 4 screws A fixing the Top

Cover and 5 screws A mounting the

Rear Panel, then detach the Top Cover

as shown in the arrow direction.

2. MAIN P.W.B.

Remove 1 screw A , 2 screws B ,1

screw C fixing the Main P.W.B. and 1

screw B mounting the rear Panel; then

detach the Main P.W.B. as shown in the

arrow direction.

3. FRONT PANEL

Remove 2 screws D mounting the

Front Panel; 2 side screws B and 5

below screws A mounting the Front

Panel, then detach the Front Panel as

shown in the arrow direction.

DCM-380/280

4. CONTROL P.W.B.

Remove 8 screws E mounting the

Front Panel and 1 E screw fixing the

Control P.W.B., then detach the Control

P.W.B. as shown in the arrow direction.

5. BACK PANEL

Remove 3 screws F mounting the Bot-

tom Cover, then detach the Back Panel

as shown in the arrow direction.

Note: Only in φ3x5mm, other screws

can’t be used.

6. LOADER ASS’Y

Remove 1 screw G and 4 screws H

mounting the Bottom Cover, then detach

the Loader Ass’y as shown in the arrow

direction.

DCM-380/280

SEMICONDUCTORS

CXD3068Q

D/A

Interface

Error

Corrector

32K

RAM Digital

OUT

Sub Code

Processor

Clock

Generator

Asymmetry

Corrector

Digital

PLL

Digital

CLV

CPU

Interface

Servo

Auto

Sequencer

Signal processor block

RFAC

ASYO

ASYE

BIAS

XPCK

FILO

FILI

PCO

CLTV

MDP

LOCK

SENS

DATA

XLAT

CLOK

SCOR

SBSO

EXCK

SCSY

SQSO

SQCK

XRST

TEST

TES1

PWMI

ASYI

FSTO

C4M

Servo block

SERVO

Interface

MIRR

DFCT

FOK

SERVO DSP

FOCUS SERVO

TRACKING

SERVO

SLED SERVO

PWM GENERATOR

FOCUS PWM

GENERATOR

TRACKING PWM

GENERATOR

SLED PWM

GENERATOR

RFDC

IGEN

OPAmp

Analog SW

A/D

Converter

ADIO

FFDR

FRDR

TFDR

TRDR

SFDR

SRDR

SOUT

SOCK

XOLT

SCLK

COUT

SSTP

ATSK

MIRR

DFCT

FOK

XTAI

XTAO

XTSL

V16M

VPCO

VCTL

MUTE

BCK

PCMD

LRCK

C2PO

WDCK

DOUT

MD2

WFCK

EMPH

GFS

XUGF

EFM

demodurator

46 29

17 67

65 66

11 13 68

59 60

71 72

DCM-380/280

CXA2581N

DVCC

SUM

APC

VCA EQ

RW/ROM

EQ_ON/OFF

VOFST DVC

DVCC

RW/ROM

DVCC

26242334

DVC

DVCC

DVC

VOFST

DVC

VCC

VOFST

VCC

GND

DVC

DVCC

CEI

TE_BAL

FEI

RFDCO

RFDCI

RFAC

VFC

RFC

RFG

BST

EQ_IN

AC_SUM

DC_OFST

RW/ROM

145

VCC

APC-OFF (Hi-Z)

RW/ROM

(H/L)

2722

RW/ROM

VOFST

DCM-380/280

CXP82032/82040/82052/82060

8-BIT TIMER/COUNTER 0

8-BIT TIMER 1

UART BAUD RATE

GENERATOR

UART RECEIVER

UART TRANSMITTER

INT2

XTAL

PWM

RAM

3984

BYTES

SPC 700

CPU CORE

A/D CONVERTER

INT3/NMI

INT1

INT0

AN0 to AN7 8PA0 to PA7

FDP

CONTROLLER/

DRIVER

32kHz

TIMER/COUNTER

PRESCALER/

TIME-BASE TIMER

RST

VDD

VSS

PORT A

PORT B

PORT C

PORT D

PORT E

PORT F

PORT G

PB0 to PB7

PC0 to PC7

PD0 to PD7

PE0 to PE5

PF0 to PF7

PG0 to PG7

PE6 to PE7

TEX

EXTAL

CS0

ROM

32K/40K/ 52K/60K

BYTES

RAM

KEY SCAN

PORT H

PH0 to PH7

CLOCK GENERATOR/

SYSTEM CONTROL

14-BIT PWM GENERATOR

FIFOREMOCON

RMC

SI0

SO0

SCK0

SI1

SO1

SCK1

EC0

CINT

EC1

ADJ

G0/A0 to G15/A15

A16 to A23

A24 to A56

VFDP

KR0 to KR7

SERIAL INTERFACE (CH1)

16-BIT CAPTURE

TIMER/COUNTER 2

SERIAL

INTERFACE

(CH0)

BUFFER

RAM

PORT I

PI0 to PI4

TxD

RxD

INTERRUPT CONTROLLER

RAM

DCM-380/280

Serial

Input

I/F

Output Amp and

Low-Pass Filter

DAC

Oversampling

Digital Filter

with

Function

Controller

Enhanced

Multi-Level

Delta-Sigma

Modulator

Output Amp and

Low-Pass Filter

DAC

BCK

LRCK

DATA

Function

Control

I/F

System Clock

Manager

Zero Detect Power Supply

OUT

COM

OUT

DGND

ZEROL

ZEROR

SCK

System Clock

AGND

PCM1748

BA033FP

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