When The Microprocessor Is Replaced With A New One; Procedure For Updating The Version Of The Firmware; How To Update By Dfw - Denon AVR-4520CI Service Manual

WHEN THE MICROPROCESSOR IS REPLACED WITH A NEW ONE

When the U-PRO (Microprocessor) or the Flash ROM is replaced, confirm the following.
PWB Name Ref. No.
R5F56108VNFP
HDMI U2001
R5F3650KNFB
HDMI U2101
MX29LV160DBTI-70G
DSP U101
MX29LV160DBTI-70G
DSP U201
MX29LV160DBTI-70G
DSP U301
5M570ZF256C5N
HDMI U301
MX25L12835E
HDMI U1404
H27U1G8F2BTR-BC
NETWORK U504
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 flash 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 flash 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 firmware 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 firmware".
1.2. Connection of AV receiver
(1) Confirm 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) Confirm the power indicator is red.
Description
RS-232C Cable
PC
After
replaced
SOFTWARE: Main
B
SOFTWARE: Sub
B
SOFTWARE: DSP1 ROM
B
SOFTWARE: DSP2 ROM
B
SOFTWARE: DSP3 ROM
B
SOFTWARE: Audio PLD
D
SOFTWARE: Video GUI ROM
B
SOFTWARE: NETWORK
C
75
Remark