Denon RCD-M39, Service Manual

Page: 2 / 105

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
Specifications ...........................................................................9
CAUTION IN SERVICING
........................................................10
Initializing STEREO CD RECEIVER .......................................10
Support for Asia-Pacific 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
All manuals and user guides at all-guides.com