Ricoh D104 Field Service Manual page 307

When installing a new controller board
1. Install the NVRAM from the old controller board on a new controller board.
2. Install the new controller board in the machine.
3. Disconnect the cables of the HDD from the controller board.
• Disconnecting the cables of the HDD is very important. Otherwise, the HDD is automatically
formatted and all data in the HDD is lost due to the security limitation.
4. Reassemble the machine.
5. Turn on the main power of the machine.
6. Turn off the main power of the machine, and then connect the cables of the HDD again.
• Make sure you print out the SMC reports ("SP Mode Data" and "Logging Data") before you replace
the NVRAM.
• Keep NVRAMs away from any objects that can cause static electricity. Static electricity can damage
NVRAM data.
• Make sure the NVRAM is correctly installed on the controller board.
HDD Encryption Recovery from a Device Problem
The flowchart below shows the recovery possibility of the HDD encryption if one of devices related with
the HDD encryption is defective.
Electrical Components
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