About Replace The Microprocessor With A New One - Marantz ST-15S1/N1G Service Manual

Dab/am/fm tuner
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12. 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
Pos.
Name
No.
MAIN
IC300 MB90F352PFM-G ST-15S1 FOR N
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.
Description
59
After
Remark
replaced
B

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