Version Upgrade Procedure Of Firmware; About Replace The Microprocessor With A New One - Marantz MM7055/N1B Service Manual

VERSION UPGRADE PROCEDURE OF FIRMWARE

ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE

When replaced of the U-PRO (Microprocessor), confi rm contents of the following.
PWB Name Ref. No.
12336Z-A IC402
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 fl ash ROM. Please check the software version.
C : Empty Flash ROM (Without software). You should be write-in of the software to the microprocessor.
Refer to "Update procedure" or "writing procedure", when you should be write-in the software.
[A] Update CPU's software to internal Flash-ROM.
• This mode is to update the software for microprocessor.
• The target devise is internal fl ash ROM of microprocessor (IC402) on CPU PWB (12336Z-A).
• The updating of software takes about 20 seconds.
• The software is common by MM7055 and MM7025.
Necessary Equipment
The following items are required for updating.
• Windows PC (OS: Windows2000 or WindowsXP) with Serial port.
• RS-232C Dsub-9 pin cable (female to female/straight type)
• Update software to CPU. (FlashSta.exe, MM7055_7025_yymmddvv.mot and MM7055_7025_yymmddvv.id in CPU
(MM7055_7025) folder)
• DATA UPDATE KIT (part no. 90M-SR4500JIG)
Use DATA UPDATE KIT to connect PC and CN44 (FFC connector) in rear panel of the unit, when updating CPU
Update CPU's software to internal Flash-ROM
(1) Disconnect the mains cord from the unit
(2) Connect PC and the DATA UPDATE KIT with the RS-232C cable. And connect FFC (upside contact) to the connector
(CN44) into the rear panel of the unit from the DATA UPDATE KIT.
(3) Connect the mains cord into the unit.
(4) Press the POWER ON/OFF button for turn on the unit. Then the STANDBY LED do not turn on a light.
(5) Put the CPU (MM7055_7025) folder into anywhere on your PC's hard disc.
Description
R5F21246SNFP
After
replaced
C
16
Remark