Denon AVR-1612 Service Manual

2
CONTENTS
SAFETY PRECAUTIONS ..........................................................3
NOTE FOR SCHEMATIC DIAGRAM
.........................................4
TECHNICAL SPECIFICATIONS
................................................5
DIMENSION
...............................................................................5
CAUTIONS IN SERVICING
.......................................................6
Initializing AV SURROUND RECEIVER ....................................6
Service Jig ................................................................................6
DISASSEMBLY
..........................................................................7
1. HDMI UNIT ASSY ..................................................................9
2. FRONT PANEL ASSY .........................................................10
3. INPUT PCB ASSY ...............................................................11
4. RADIATOR ASSY ................................................................12
5. REGULATOR PCB ..............................................................13
6. SMPS PCB ..........................................................................13
7. TRANS POWER ..................................................................13
SPECIAL MODE
......................................................................14
Special mode setting button ....................................................14
1. µcom/DSP Version display mode ........................................15
2. Errors checking mode
(Displaying the protection history) .......................................17
3. Remote ID Setup mode .......................................................19
4. DIAGNOSTIC MODE
(Video/Audio (signal) path conrmation mode) ...................21
BLOCK DIAGRAM
...................................................................23
JIG FOR SERVICING
..............................................................35
WHEN THE MICROPROCESSOR IS
REPLACED WITH A NEW ONE
.............................................37
PROCEDURE FOR UPGRADING
THE VERSION OF THE FIRMWARE
.....................................37
1. How to update by DFW .......................................................37
ADJUSTMENT
.........................................................................41
SURROUND MODES AND PARAMETERS
............................42
TROUBLE SHOOTING
............................................................46
1. POWER ...............................................................................46
2. Analog video ........................................................................47
3. HDMI/DVI ............................................................................51
4. AUDIO .................................................................................56
5. USB .....................................................................................59
6. SMPS ..................................................................................60
WIRING DIAGRAM
..................................................................64
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
.............65
LEVEL DIAGRAM
....................................................................66
SCHEMATIC DIAGRAMS
........................................................71
DIGITAL UNIT (1/8) .................................................................71
HDMI PART .........................................................................71
DIGITAL UNIT (2/8) .................................................................72
DIGITAL SUPPLY PART ......................................................72
DIGITAL UNIT (2/8) .................................................................72
HDMI PART .........................................................................72
DIGITAL UNIT (3/8) .................................................................73
MCU PART ..........................................................................73
DIGITAL UNIT (4/8) .................................................................74
MCU_LEVEL_CHG PART ...................................................74
DIGITAL UNIT (5/8) .................................................................75
USB TCC8600 PART...........................................................75
DIGITAL UNIT (6/8) .................................................................76
DIR PART ............................................................................76
DIGITAL UNIT (7/8) .................................................................77
DSP PART ..........................................................................77
DIGITAL UNIT (8/8) .................................................................78
MAIN DAC PART .................................................................78
INPUT UNIT (1/2) ....................................................................79
AUDIO PART .......................................................................79
INPUT UNIT (2/2) ....................................................................80
VIDEO PART .......................................................................80
FRONT UNIT ...........................................................................81
VOLUME UNIT ........................................................................81
POWER UNIT .........................................................................81
HEADPHONE UNIT ................................................................81
iPod/USB UNIT (AVR-1612 ONLY) .........................................81
PORTABLE UNIT (AVR-1312 ONLY) ......................................81
REGULATOR UNIT (AVR-1312 ONLY) ...................................81
MAIN UNIT ..............................................................................82
REGULATOR UNIT .................................................................83
D-TERMINAL UNIT(JP ONLY) ................................................84
CONNECTOR UNIT ................................................................85
SMPS UNIT .............................................................................86
EXPLODED VIEW
....................................................................87
PARTS LIST OF EXPLODED VIEW
........................................89
PACKING VIEW
.......................................................................92
PARTS LIST OF PACKING & ACCESSORIES
.......................92
PARTS LIST OF P.C.B. UNIT
..................................................94
FRONT PCB UNIT ASS'Y .......................................................94
DIGITAL PCB UNIT ASS'Y ......................................................96
INPUT PCB UNIT ASS'Y .......................................................102
MAIN PCB UNIT ASS'Y.........................................................104
POWER PCB UNIT ASS'Y ....................................................108
SEMICONDUCTORS
.............................................................110
1. IC's ....................................................................................110
2. FL DISPLAY.......................................................................135
PRINTED WIRING BOARDS
.................................................137
DIGITAL PCB UNIT ...............................................................137
FRONT PCB UNIT ................................................................139
INPUT PCB UNIT ..................................................................141
MAIN PCB UNIT....................................................................143
POWER PCB UNIT ...............................................................145

Denon AVR-1612 Specifications

General

Audio output channels	5.1 channels
Audio A/D Converter (ADC)	24-bit/96kHz
Power output per channel (1KHz@6 Ohm)	120 W
Power output per channel (20-20KHz@8 Ohm)	80 W
HDMI in	4
Composite video in	3
S-Video inputs quantity	1
Speakers connectivity type	-
Ethernet LAN	No
Radio Data System (RDS)	Yes
Preset stations quantity	56
Analog signal format system	NTSC, PAL
Display	LCD
HDMI version	1.4
Product color	Black
Audio decoders	Dolby Digital, Dolby Digital EX, Dolby Digital Plus, Dolby Pro Logic II, Dolby Pro Logic IIx, Dolby Pro Logic IIz, Dolby TrueHD, DTS 96/24, DTS Neo:6, DTS-ES, DTS-HD
Apple docking compatibility	iPod
Graphical user interface (GUI) language	English, French, German
AC input voltage	220-240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	0.5 W
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 80 %

Weight and Dimensions

Depth	382 mm
Width	435 mm
Height	162 mm
Weight	9200 g