Marantz NR1504 /U1B Service Manual page 62

USB location is below
USB memory root
Model Name Model Area
NR1504 U1 North America (E3)
NR1504 N1 Europe (E2) / Singapore(E1)
NR1504 K1 China (E1C)
+ firmwares
+ 100100190100
+ APLD.bin
+ DSP.bin
+ enc_update.xml
+ GUI.bin
+ IMG.bcd
+ MAIN.bin
+ SBL.bcd
► USB_NR1504U_100100190100-0001 ► firmwares ► 100100190100 USB_AVR-4520E3_000100620100-0001
►
3.4. Insert the USB memory into a USB port
NOTE: Please UNPLUG LAN cable from the unit during update.
Download firmware
in USB flash drive.
Product ID
100100190100
100100190200
100100190500
firmwares 000100620100
► ►
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