When The Microprocessor Is Replaced Witha New One; Procedure For Upgrading The Version Of The Firmware; How To Update By Dfw - Denon AVR-E300 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.
DIGITAL IC761 R5F56108VNFP
DIGITAL IC793 MX29LV160DBTI-70G
DIGITAL IC783 EPM3032A-TC4410
DIGITAL IC722 MX25L3206EM2I-12G
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 : 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 UPGRADING THE VERSION OF THE FIRMWARE

1. How to update by DFW

1.1. Preparations before starting the operation
(1) Personal Computer (Installed "DFW_0063_AVRX1000_1010_E300(Rev.2.1.8).exe".
(2) RS-232 cable (9P (Male ), Straight).
(3) 8U-210100 Writing Kit.
1.2. Connection of AV receiver
(1) Confirm the power on/off switch of the AV receiver is turning off.
(2) Connect the update terminal of AV receiver with the "Writing Kit".
(3) Connect the RS-232C cable from PC with the "Writing Kit".
Description
4P FFC Cable
This side is contacts of
flexible card cable.
After
replaced
B
B
B
B
S706-709 : No Preference
RS-232C Cable
Writing Kit
43
Remark
SOFTWARE: Main
SOFTWARE: DSP ROM
SOFTWARE: AUDIO PLD
SOFTWARE: OSD ROM
S702 : 3.3V
PC