Denon AVR-4520 Service Manual

105
Input
CVBS,COMP
A
Check the input signal to video decoder
IC(DIGITAL UNIT U1102).
V : R1104
COMPONENT-Y : R1101
COMPONENT-Cb : R1103
COMPONENT-Cr : R1102.
Check the output signal from video
encoder IC (DIGITAL UNIT U1401).
V : Q1401-E
COMPONENT-Y : Q1402-E
COMPONENT-Cb : Q1403-E
COMPONENT-Cr : Q1404-E.
Check of the I
2
C control signal of video
selector IC(U3703).
8U-210119-4 CONNECT2 UNIT
I
2
C(SCL) : N 4007-18pin
I
2
C(SDA) : N4007-17pin
see the sample wave form (page
106 ).
To B
• Defective connection of N3701.
• Power supply IC (U3701 or U3702) aw.
•
To B
• DIGITAL UNIT aw.
• Defective connection of the connector
(N4007 or N4004).
• 8U-310116 DIGITAL UNIT aw.
NO
NO
NO
NO
YES
YES
YES
YES
Check power supply voltage.
8U-210119-1 AUDIO/VIDEO UNIT.
V+3.3V : U3701 Out pin
V-5V : U3702 Out pin

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