Update Firmware; Update Dsp’s Software To Flash-Rom; Update Cpu’s Software To Internal Flash-Rom; Download Firmware For Dsp (Mode 1) - Marantz SR7500/A1B Service Manual

6. UPDATE FIRMWARE

Software for CPU and DSP can be updated.
Have update application software. ("UpgradeDSP.exe" and
"H8Download.exe")
There are two mode of download, regarding to the target of
software as bellow.
Mode 1: Update DSP's software to Flash-ROM.
This mode is to update the software for DSP.
The target devise is Flash-ROM (IC20) on CUP11762Z
(DSP PCB).
The Unit needs to be set update condition, by three front
keys.
Mode 2: Update CPU's software to internal Flash-ROM.
This mode is to update the software for DSP.
The target devise is internal fl ash ROM of CPU (IC36) on
CUP11762Z (DSP PCB).
The Unit needs to be set to writing condition, by pushing
internal switch from back-panel.
The following items are required for updating.
RS232C Dsub-9 pin cable (female to female/Straight type)
Windows PC (98, NT, ME, 2000) with RS-232C port.
Update software to CPU.
Update software to DSP.
Use RS232C Dsub-9 pin cable (female to female/Straight
type) to connect PC and the unit.
COM port on PC needs to be set by dialog box for each pro-
gram. COM port can be set from COM1 to COM5.

Download Firmware for DSP (Mode 1)

1. Put the "DSP upgrade" folder into anywhere on your PC'
s hard disc.
2. Connect PC and the unit with the RS-232C cable.
3. Turn on the unit.
6. UPDATE FIRMWARE
CPU DSP
H8Download.exe
Mode 1:DSP Flash-ROM
DSP
CUP11762(DSP PCB)
[PS7500 / PS8500]
Mode 2:CPU Flash-ROM
CPU
CUP11762(DSP PCB)
Flash-ROM
[PS7500 / PS8500]
RS-232C
Windows PC Serial Port
CPU
DSP
RS-232C
COM COM1
DSP
1. "DSP upgrade"
2. PC RS-232C
3.
12
UpgradeDSP.exe
Flash-ROM (IC20)
CPU(IC36)
(
(9Pin -9Pin
(OS: 98,NT,ME,2000)
PC COM
COM5
(Mode 1)
PC
3
)
)