Fostex DV40 Service Manual page 19

4-5-1. Boot Up using Flash ROM Card PCB & Rewriting Flash ROM Program on CPU Module
& Ether Card PCBs
1. Power off DV40 and disconnect the AC cable from the AC IN socket.
2. Open up the top cover.
3. Set the SW S1 on the Flash ROM PCB to "EXT
(FLASH)" side and plug it into either the PCB
assy which cannot be correctly booted up (CPU
Module PCB: J4 50-pin connector, Ether Card
PCB: J300 50-pin connector).
4. Connect the AC cable and power on DV40.
In this condition, DV40 is booted up using the
program inside the Flash ROM on the Flash ROM PCB.
5. Put DV40 into the Service Mode by pressing the [SETUP] key while holding down the [STOP] key and select the
"Flash ROM?" menu.
6. While "?" flashes, press the [ENTER/YES] key.
7. "FlashWrite Sure?" appears on the FL display. Press the [ENTER/YES] key again. The message "ERASE ROM"
and "Write PGM" appear on the FL display while copying the program.
With "Completed!" message, the program inside the Flash ROM on the Flash ROM Card PCB has been successfully
copied to the Flash ROM on either the CPU Module or Ether Card PCB.
8. After confirming that DV40 is correctly booted up, copy the latest software to the CD-ROM or DVD-RAM disk
and update accordingly.
4-5-2. Rewriting Flash ROM Program on Flash ROM Card PCB
[NOTE]
In order to rewrite the Flash ROM program on the Flash ROM Card PCB, preparing DV40 which is booted up
correctly is required.
1. Power off DV40 and disconnect the AC cable from the AC IN socket.
2. Open up the top cover.
3. Set the SW S1 on the Flash ROM PCB to "INT"
side and plug it into either the CPU Module or
Ether Card PCB from which you would like to
transfer the program to the Flash ROM on the
Flash ROM Card PCB.
4. Connect the AC cable and power on DV40.
In this condition, DV40 is booted up using the
program inside the Flash ROM on the CPU Module or Ether Card PCB.
5. Put DV40 into Service Mode by pressing the [SETUP] key while holding down the [STOP] key and select the
"Flash ROM?" menu.
6. While "?" flashes, press the [ENTER/YES] key.
7. "FlashWrite Sure?" appears on the FL display. Press the [ENTER/YES] key again. The message "ERASE ROM"
and "Write PGM" appear on the FL display while copying the program.
With "Completed!" message, the program inside the Flash ROM on either the CPU Module or Ether Card PCB
has been successfully copied to the Flash ROM on the Flash ROM Card PCB.
[CAUTION]
If power shutdown or blackout occurs while updating the Flash ROM program on the Display PCB assy and the
updating procedures are halted, replacing whole the PCB assy might be required. This is because the Display PCB
assy uses the flash ROM inside the Display CPU. There is no connector to connect the Flash ROM Card PCB assy
on the Display PCB.
BOOTUP
Flash ROM Card PCB
Copy
Program.
EXT
(FLASH)
Flash
ROM
SW S1
Copy
Program.
INT
Flash ROM Card PCB
Copy
Program.
EXT
(FLASH)
Flash
ROM
SW S1
Copy
Program.
INT
Service Manual
CPU Module PCB
Flash
ROM
DV40
Ether Card PCB
Flash
ROM
BOOTUP
CPU Module PCB
Flash
ROM
DV40
Ether Card PCB
Flash
ROM
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