Originally Posted by
teckat
Restrictions>> Do not transfer the following parts to another machine (a machine of a different serial number).
The machine will not start up normally, and may become unrecoverable in some
cases.
• Main Controller PCB 2 (with the Memory PCB unremoved)
• Memory PCB
Handling SRAM data of this machine.
With the normal service, the contents of SRAM of the Main Controller PCB 2 can be backed
up to HDD in service mode and restored after replacing the board.
If there is an HDD Encryption Board, the encryption key of the HDD Encryption Board
recorded on SRAM is lost when replacing the Main Controller PCB 2, and the contents of
HDD cannot to be read.
Therefore, restoration cannot be done although backup is performed.
When replacing the Main Controller PCB 2, user data needs to be reentered in the same way
as when replacing the HDD with a new one.
Main controller PCB 2
At replacement Replace the part from the old PCB to the new PCB.
• 2 boards of DDR2-SDRAMs (3 boards when the option DDR2-SDRAM is
installed)
• Bypass PCB
• Memory PCB
SRAM of the Main Controller PCB 2 includes user data and MEAP related data.
If there are any files backed up from RUI by the user, restore them
after recovery.
Explain the user that the re-installation of everything related to MEAP is necessary.
Reference: If Meapback.bin is saved using SST, it can be restored after replacing the Main
Controller PCB 2.
This makes the re-installation of everything related to MEAP unnecessary.
Removing the Main Controller PCB 2
■ ■ Actions before Replacement
Data in SRAM on the Main Controller PCB 2 can be backed up to a USB memory device or
an HDD from download mode.
* However, if the HDD Encryption Board is installed, backup to an HDD is not possible. It is
therefore recommended to perform backup to an USB memory device.
Temporarily backing up SRAM data to a USB memory device
(recommended)
USB memory device where the system software for this machine has been registered using
the SST
Or, USB memory device formatted as FAT32 which has been checked that it can be
recognized by the host machine.
In order to let the USB memory device recognized in service mode, create an empty folder on
the USB memory device and name the folder with the same name used when registering the
system software for this machine using the SST.
CAUTION:
If mismatch between the box management information included in the SRAM data and box data on the HDD occurs, which is caused by starting the machine normally without
restoring SRAM data after replacing the Main Controller 2 PCB, the box management information is initialized.
As a result, box documents on the HDD are deleted.
Therefore, be sure to back up the box documents on remote UI.
Actions after Replacement
● ● When SRAM data is temporarily backed up to an USB memory
device.
1) After replacing the PCB, start the machine by 2+8 startup.
2) Connect the USB memory device to USB I/F (Host) of the machine.
When the download Menu (USB) appears, press the [8] key on the Control Panel.
3) The download Menu 2nd (USB) will appear. Press the [2] key.
4) Press the [0] key for confirmation.
5) The Restore Menu (USB) will appear. Press the [2] key.
6) Press the [0] key to confirm, and then the SRAM data is restored from the USB memory
device.
7) Press the [C] key to return to the download Menu (USB).
8) Press the [Reset] key to shut down the host machine.
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