Denon AVR-4520 Service Manual

75
WHEN THE MICROPROCESSOR IS REPLACED WITH A NEW ONE
When the U-PRO (Microprocessor) or the Flash ROM is replaced, conrm the following.
PWB Name Ref. No. Description
After
replaced
Remark
HDMI U2001 R5F56108VNFP B SOFTWARE: Main
HDMI U2101 R5F3650KNFB B SOFTWARE: Sub
DSP U101 MX29LV160DBTI-70G B SOFTWARE: DSP1 ROM
DSP U201 MX29LV160DBTI-70G B SOFTWARE: DSP2 ROM
DSP U301 MX29LV160DBTI-70G B SOFTWARE: DSP3 ROM
HDMI U301 5M570ZF256C5N D SOFTWARE: Audio PLD
HDMI U1404 MX25L12835E B SOFTWARE: Video GUI ROM
NETWORK U504 H27U1G8F2BTR-BC C SOFTWARE: NETWORK
After replacing
A
: Mask ROM (With software). No need for write-in of software to the microprocessor.
B
: Flash ROM (With software). Usually, no need for write-in of software. But, when the software was updated, you should
write the new software on the microprocessor or ash ROM. Please check the software version.
C
: After replacing Nand Flash, always update the software. After the update is completed, initialize DM860A. (24 page)
D
: Empty Flash ROM (Without software). You should write the software on the microprocessor or ash ROM.
Refer to "Update procedure" or "writing procedure", when you write the software.
PROCEDURE FOR UPDATING THE VERSION OF THE FIRMWARE
You can update the rmware by downloading the latest version from the Internet.
1. How to update by DFW
1.1. Preparations before starting the operation
(1) Personal Computer (Installed "DFW_0062_AVR4520_(Rev.x.x.x).exe".
(2) RS-232C cable (9P (Male), Straight).
NOTE :
Refer to "The Operating Manual for updating of DENON AV receiver rmware".
1.2. Connection of AV receiver
(1) Conrm the power on/off switch of the AV receiver is turning off.
(2) Connect the RS-232C cable from PC with the "RS232C Terminal of AV receiver".
1.3. Turn on the AV receiver
Turn on the AV receiver. When the board is replaced, the Flash ROM is replaced, or rewriting fails, always complete the
following steps to force the update.
Forced Update Mode :
(1) Connect the power cable to the AC outlet while simultaneously pushing the "BACK" and "ZONE/REC SELECT"
button of the front panel.
(2) Conrm the power indicator is red.
PC
RS-232C Cable

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