Download Firmware For Dsp (Mode 1); Download Firmware For Cpu (Mode 2) - Marantz sr4001 Service Manual

The following items are required for updating.
• RS232C Dsub-9 pin cable (female to female/Straight ca ble)
• PC (Windows 98, NT, ME, 2000, XP) with RS-232C port
• DATA UPDATE KIT (part no. 90M-SR4001JIG)
• Update software to CPU
• Update software to DSP
1. Use RS232C Dsub-9 pin cable (female to female/Straight type) to connect PC and the unit.
2. COM port on PC needs to be set by dialog box for each pro gram. COM port can be set from COM1 to COM5.
There are two mode of download, regarding to the target of software as bellow.
Mode 1:
Download DSP's software to 4M Flash-ROM.
This mode is to update the software for DSP.
The target devise is 4M Flash-ROM (IC40) on CUP11885 (INPUT PWB).
SR4001 need to be set download condition, by three front buttons.
• SR4001 : ENTER, MUTE, T-MODE
Mode 2:
Download CPU's software to internal Flash-ROM.
This mode is to update the software for DSP.
The target devise is internal flash ROM of CPU (IC11) on CUP11885 (INPUT PWB).

Download Firmware for DSP (Mode 1)

1. Put the "DSP Update" folder into anywhere on your PC's hard disc.
2. Connect PC and DATA UPDATE KIT with RS232C cable.
3. Connect Flat wire between DATA UPDATE KIT and the ser vice connector (CN83) on the DOWNLOADER CONNECTOR
PWB of the Unit.
4. Turn on the unit.
5. Press ENTER, MUTE and T-MODE buttons si mul ta neous ly more than 5 seconds to turn the unit into Loading Mode.
6. "LOADING MODE" will be shown on FLD.
7. Launch "UpgradeDSP.exe" on PC.
8. Set the Baud Rate to 38400 then click Start com mu ni ca tion button. If the connection is made successfully, a di a log box
saying "Success to connect" appears and "CON NECT ED" is displayed on FLD.
9. Click Send the DSP codes button on the dialog box. Progress status of downloading will be shown on PC and
LOADING is displayed on FLD.
10. If downloading is completed successfully, "COMPLETED" is displayed on FLD. And a dialog box saying "Finished the
DSP code transmitting" appears. Click OK and then click CLOSE to close the application.
11. Turn off the unit.

Download Firmware for CPU (Mode 2)

1. Put the "CPU Update" folder into anywhere on your PC's hard disc.
2. Connect PC and DATA UPDATE KIT with RS232C cable.
3. Connect Flat wire between DATA UPDATE KIT and the ser vice connector (CN83) on the DOWNLOADER CONNECTOR
PWB of the Unit.
4. Press POWER button to turn on the unit. The unit is in the boot mode. (FLD and STANDBY LED on the front panel
disappear.)
5. Launch "H8Download.exe" on PC.
6. Click other files... button in the dialog box to specify the file (XXXX.mot) to be upload.
7. Click Connect button. If the connection with the H8 microprocessor is suc cess ful ly made, a dialogue box saying "Success
to the H8 microprocessor connection" appears. If the con nec tion fails, error message will appear.
8. Click Send button to start update.
9. If the firmware is updated successfully, a dialog box say ing "Finished the firmware program sending" appears.
10. Click CLOSE button to close the application.
11. Disconnect Mains power cord.
12. Disconnect Flat wire from the service connector (CN83) on the DOWNLOADER CONNECTOR PWB of the Unit.
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