Denon AVR-4520 Service Manual

2
CONTENTS
ABOUT THIS MANUAL
.............................................................3
What you can do with this manual ............................................3
Using Adobe Reader (Windows version) ..................................4
SAFETY PRECAUTIONS
..........................................................6
NOTE FOR SCHEMATIC DIAGRAM
.........................................7
NOTE FOR PARTS LIST
...........................................................7
TECHNICAL SPECIFICATIONS
................................................8
DIMENSION
...............................................................................8
CAUTION IN SERVICING
..........................................................9
Initializing INTEGRATED NETWORK AV RECEIVER ..............9
Service Jig ................................................................................9
DISASSEMBLY
........................................................................10
1. FRONT PANEL SUB ASSY .................................................11
2. RADIATOR(L) SUB ASSY ...................................................15
3. RADIATOR(R) SUB ASSY ..................................................17
4. POWER TRANS ..................................................................18
5. BACK PANEL SUB ASSY ...................................................19
6. REMOVE THE SCREW COVER (41951004800AD:SP) ....22
7. PUT THE SCREW COVER (41951004800AD:SP) .............23
SPECIAL MODE
......................................................................24
Special mode setting button ....................................................24
1. µcom/DSP Version display mode ........................................25
2. PANEL/REMOTE LOCK Selection mode ............................30
3. Service Related Selection mode .........................................31
BLOCK DIAGRAM
...................................................................37
4. Additional Source mode ......................................................70
5. Protection Pass mode .........................................................70
6. DM860A Reboot mode ........................................................71
7. Remote ID Setup mode .......................................................71
8. ZONE4 HDMI mode ............................................................72
JIG FOR SERVICING
..............................................................73
WHEN THE MICROPROCESSOR IS
REPLACED WITH A NEW ONE
..............................................75
PROCEDURE FOR UPdating
THE VERSION OF THE FIRMWARE
......................................75
1. How to update by DFW .......................................................75
2. How to update by DPMS .....................................................79
3. How to update by USB Memory ..........................................85
ADJUSTMENT
.........................................................................95
SURROUND MODES AND PARAMETERS
............................96
TROUBLE SHOOTING
..........................................................103
1. POWER .............................................................................103
2. Analog video ......................................................................104
3. HDMI/DVI ..........................................................................108
4. AUDIO ...............................................................................110
5. Network/USB ..................................................................... 113
6. SMPS ................................................................................119
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK
...........122
LEVEL DIAGRAM
..................................................................124
CPU Control Block Diagram
................................................132
PRINTED WIRING BOARDS
.................................................133
POWER AMP (FL) (COMPONENT SIDE) ............................133
POWER AMP (C) (COMPONENT SIDE) ..............................133
POWER AMP (SBL) (COMPONENT SIDE) ..........................133
POWER AMP (SL) (COMPONENT SIDE) ............................133
POWER AMP (FHL) (COMPONENT SIDE) ..........................134
POWER AMP (FR) (COMPONENT SIDE) ............................134
POWER AMP (SBR) (COMPONENT SIDE) .........................134
POWER AMP (SR) (COMPONENT SIDE) ............................134
POWER AMP (FHR) (COMPONENT SIDE) .........................135
AMP CONNECT UNIT (COMPONENT SIDE) ......................135
AMP CONNECT UNIT (COMPONENT SIDE) ......................135
POSISTOR UNIT (COMPONENT SIDE) ..............................135
POSISTOR UNIT (COMPONENT SIDE) ..............................135
SPK/SMPS (COMPONENT SIDE) ........................................136
FLD (COMPONENT SIDE) ...................................................138
TUNER (COMPONENT SIDE) ..............................................138
VH-JOINT (COMPONENT SIDE) ..........................................138
AUDIO/VIDEO (COMPONENT SIDE)...................................140
FRONT (COMPONENT SIDE) ..............................................140
CONNECT1 (COMPONENT SIDE) ......................................140
CONNECT2 (COMPONENT SIDE) ......................................140
APOWER (COMPONENT SIDE) ..........................................142
BRIDGE (COMPONENT SIDE) ............................................142
232C (COMPONENT SIDE)..................................................142
FRONT HDMI USB (COMPONENT SIDE) ...........................142
DSP (COMPONENT SIDE) ...................................................143
NETWORK (COMPONENT SIDE) ........................................143
DIGITAL (COMPONENT SIDE).............................................144
SCHEMATIC DIAGRAMS (1/36)
...........................................146
SPK/SMPS UNIT (1/3) ..........................................................146
SPK/SMPS UNIT (2/3) ..........................................................147
SPK/SMPS UNIT (1/2) ..........................................................148
P.AMP UNIT (1/3) ..................................................................149
P.AMP UNIT (2/3) ..................................................................150
P.AMP UNIT (3/3) ..................................................................151
A.AUDIO/VIDEO UNIT (1/7)..................................................152
A.AUDIO/VIDEO UNIT (2/7)..................................................153
A.AUDIO/VIDEO UNIT (3/7)..................................................154
A.AUDIO/VIDEO UNIT (4/7)..................................................155
A.AUDIO/VIDEO UNIT (5/7)..................................................156
A.AUDIO/VIDEO UNIT (6/7)..................................................157
A.AUDIO/VIDEO UNIT (7/7)..................................................158
NETWORK/DSP UNIT (1/9) ..................................................159
NETWORK/DSP UNIT (2/9) ..................................................160
NETWORK/DSP UNIT (3/9) ..................................................161
NETWORK/DSP UNIT (4/9) ..................................................162
NETWORK/DSP UNIT (5/9) ..................................................163
NETWORK/DSP UNIT (6/9) ..................................................164
NETWORK/DSP UNIT (7/9) ..................................................165
NETWORK/DSP UNIT (8/9) ..................................................166
NETWORK/DSP UNIT (9/9) ..................................................167
DIGITAL UNIT (1/14) .............................................................168
DIGITAL UNIT (2/14) .............................................................169
DIGITAL UNIT (3/14) .............................................................170
DIGITAL UNIT (4/14) .............................................................171
DIGITAL UNIT (5/14) .............................................................172
DIGITAL UNIT (6/14) .............................................................173
DIGITAL UNIT (7/14) .............................................................174
DIGITAL UNIT (8/14) .............................................................175
DIGITAL UNIT (9/14) .............................................................176
DIGITAL UNIT (10/14) ...........................................................177
DIGITAL UNIT (11/14) ...........................................................178
DIGITAL UNIT (12/14) ...........................................................179
DIGITAL UNIT (13/14) ...........................................................180
DIGITAL UNIT (14/14) ...........................................................181
EXPLODED VIEW
..................................................................182
PARTS LIST OF EXPLODED VIEW
......................................184
PACKING VIEW
.....................................................................188
PARTS LIST OF PACKING & ACCESSORIES
.....................188
SEMICONDUCTORS
.............................................................190
1. IC's ....................................................................................190
2. FL DISPLAY.......................................................................236
PARTS LIST OF P.W.B. UNIT
................................................238
SPK/SMPS PWB ASSY ........................................................238
P.AMP PWB ASSY ................................................................243
DIGITAL PWB ASSY .............................................................252
A.AUDIO/VIDEO PWB ASSY ................................................266
NETWORK/DSP PWB ASSY ................................................272

Denon AVR-4520 Specifications

General

Impedance	8 Ω
Receiver type	Surround
Frequency range	10 - 100000 Hz
Input sensitivity	200 mV
Audio output channels	7.1 channels
Audio A/D Converter (ADC)	24-bit/192kHz
Signal-to-Noise Ratio (SNR)	102 dB
Power output per channel (1KHz@6 Ohm)	190 W
Power output per channel (20-20KHz@8 Ohm)	150 W
HDMI in	7
Composite video in	4
USB ports quantity	1
Digital audio optical in	2
Component video (YPbPr/YCbCr) in	3
Connectivity technology	Wired
Speakers connectivity type	-
Audio formats supported	AAC, FLAC, MP3, WMA
Wi-Fi	No
Ethernet LAN	Yes
FM band range	87.5 - 108 MHz
Supported radio bands	AM, FM
Product color	Silver
Audio decoders	Dolby Digital EX, Dolby Pro Logic IIz, Dolby TrueHD, DTS 96/24, DTS Neo:6, DTS Neo:X, DTS-HD
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Apple docking compatibility	Not supported
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.1 W
Power consumption (typical)	780 W

Weight and Dimensions

Depth	423 mm
Width	434 mm
Height	195 mm
Weight	16500 g