Denon AVR-4520CI Service Manual
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Contents
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75WHEN THE MICROPROCESSOR IS REPLACED WITH A NEW ONEWhen the U-PRO (Microprocessor) or the Flash ROM is replaced, confirm the following.PWB Name Ref. No. Description Afterreplaced RemarkHDMI U2001 R5F56108VNFP B SOFTWARE: MainHDMI U2101 R5F3650KNFB B SOFTWARE: SubDSP U101 MX29LV160DBTI-70G B SOFTWARE: DSP1 ROMDSP U201 MX29LV160DBTI-70G B SOFTWARE: DSP2 ROMDSP U301 MX29LV160DBTI-70G B SOFTWARE: DSP3 ROMHDMI U301 5M570ZF256C5N D SOFTWARE: Audio PLDHDMI U1404 MX25L12835E B SOFTWARE: Video GUI ROMNETWORK U504 H27U1G8F2BTR-BC C SOFTWARE: NETWORKAfter replacingA : 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 shouldwrite 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 FIRMWAREYou can update the firmware by downloading the latest version from the Internet.1. How to update by DFW1.1. 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 receiverTurn on the AV receiver. When the board is replaced, the Flash ROM is replaced, or rewriting fails, always complete thefollowing 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.PCRS-232C Cable |
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