Denon RCD-M39 Service Manual

2
CONTENTS
ABOUT THIS MANUAL
.............................................................3
What you can do with this manual ............................................3
Using Adobe Reader (Windows version) ..................................4
NOTE FOR SCHEMATIC DIAGRAM
.........................................7
Specications
...........................................................................9
CAUTION IN SERVICING
........................................................10
Initializing STEREO CD RECEIVER .......................................10
Support for Asia-Pacic tropical climate regions .....................10
DISASSEMBLY
........................................................................ 11
About the photos used for "descriptions in the
DISASSEMBLY" section ........................................................12
1. LOADER PANEL ASSY .......................................................12
2. FRONT PANEL ASSY .........................................................13
3. CD MECHA .........................................................................14
4. HEAT SINK SUB ASSY .......................................................15
5. REAR PANEL ASSY ............................................................17
6. POWER UNIT ASSY ...........................................................19
7. MCU PCB UNIT ASSY ........................................................19
8. TRANS ................................................................................19
Note Handling and Replacement of the Laser pick-up
.......20
1. Protection of the LD .............................................................20
2. Precautions when handling the laser CD mechanism .........20
3. Cautions on assembling and adjustment ............................20
4. Determining whether the laser pick-up is defective .............20
Service Mode
..........................................................................21
How to input ...........................................................................21
1. Version display mode ..........................................................21
2. VFD checking mode ............................................................21
3. Cold start mode (initialization) .............................................22
4. CD test mode ......................................................................22
5. CD heat run mode ...............................................................26
6. Accumulated laser on time display mode ............................28
VERSION UPGRADE PROCEDURE OF FIRMWARE
............29
1. ABOUT REPLACE THE MICROPROCESSOR WITH
A NEW ONE ...........................................................................29
2. UPDATE MODE ..................................................................29
TROUBLE SHOOTING
............................................................45
1. VFD dosen't light .................................................................45
2. No Sound, Noise generated ................................................46
MEASURING METHOD AND WAVEFORMS
..........................50
1. MCU

CD PCB : TEST POINT ..............................................50
2. INPUT PCB : TEST POINT ................................................51
3. WAVEFORMS .....................................................................52
BLOCK DIAGRAM
...................................................................55
Current

BLOCK DIAGRAM
.....................................................56
LEVEL DIAGRAM
....................................................................57
WIRING DIAGRAM
..................................................................58
PRINTED WIRING BOARDS
...................................................59
AMP ........................................................................................59
POWER ..................................................................................59
FRONT ...................................................................................60
SPEAKER ..............................................................................60
CONNECTOR ........................................................................61
CONNETER ...........................................................................61
CONNETER ...........................................................................61
MCU .......................................................................................62
DIGITAL INPUT ......................................................................63
DC-DC ....................................................................................63
REGULATOR .........................................................................63
DAB ........................................................................................63
SCHEMATIC DIAGRAMS (1/3)
...............................................64
MCU&CD ................................................................................64
DIGITAL INPUT .......................................................................65
POWER & AMP ......................................................................66
EXPLODED VIEW
...................................................................67
EXPLODED VIEW OF CD MECHANISM UNIT
.......................68
PARTS LIST OF EXPLODED VIEW
.......................................69
PARTS LIST OF CD MECHANISM UNIT
...............................69
PACKING VIEW
.......................................................................70
PARTS LIST OF PACKING & ACCESSORIES
.......................70
SEMICONDUCTORS
...............................................................71
1. IC's ......................................................................................71
2. FL DISPLAY.........................................................................90
PARTS LIST OF PCB UNIT
.....................................................93

Denon RCD-M39 Specifications

General

Brand	Denon
Model	RCD-M39
Category	Car Receiver
Language	English