About Replace The Microprocessor With A New One; Version Upgrade Procedure Of Firmware; Preparations Before Starting The Operation - Marantz NR1601 Service Manual

ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE

When replaced of the U-PRO (Microprocessor) or the Flash ROM, confirm contents of the following.
PWB Name Ref. No.
DIGITAL U3102 R5F64169DFD
DIGITAL U3301 R5F3650KNFB
DIGITAL U1903 EN29LV160BB-70TIP
DIGITAL U1707 EPM3032A
After replaced
A : Mask ROM (With software). No need write-in of software to the microprocessor.
B : Flash ROM (With software). Usually, no need write-in of software. But, when the software was updated, you should be
write-in of the new software to the microprocessor or flash ROM. Please check the software version.
C : Empty Flash ROM (Without software). You should be write-in of the software to the microprocessor or flash ROM.
Refer to "Update procedure" or "writing procedure", when you should be write-in the software.

VERSION UPGRADE PROCEDURE OF FIRMWARE

1. Preparations before starting the operation

(1) Personal Computer (Installed "DFW_0002_NR1601_(Rev.1.0.6)").
(2) RS-232 cable (9P (Male), Straight).
(3) 8U-210100 Writing Kit.
2. Connection of the AV receiver/amplifier
(1) Confirm the power on/off switch of the AV receiver/amplifier is turning off.
(2) Connect the update terminal of AV receiver/amplifier with the "Writing Kit".
(3) Connect the RS-232C cable from PC with the "Writing Kit".
3. Turn on the AV receiver/amplifier
Operate the following. Turn on the AV receiver.
(1) Connect the power cable to the AC outlet while simultaneously pushing the "SURROUND MODE " button and the
"RETURN" button of the front panel.
(2) Confirm the power indicator is green and "WRITTING" is displayed in the front panel.
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
24
Remark
SOFTWARE: Main
SOFTWARE: Sub
SOFTWARE: DSP ROM
SOFTWARE: Audio PLD
S702 : 3.3V
PC