Toshiba e-STUDIO556 Service Manual page 631

(6) Enter the serial number (08-9601). Be sure that the serial number is the same as that on the
identification label attached on the rear cover of the equipment.
Note:
The MAC address of the equipment is generated based on this serial number. Entering the
incorrect serial number may result in an inability to access the network due to an invalid MAC
address.
(7) Initialize the NIC information (08-9083).
(8) Turn the power OFF and then start up with the Adjustment mode (05).
(9) Turn the power OFF and then back ON. If the error is not recovered, replace the SRAM on the
SYS board.
[F100_0] HDD format error (Operation failure of key data)
Classification
Other service call
Check item
Setting
[F100_1] HDD format error (HDD encryption key data damaged - one board)
Classification
Other service call
Check item
Encryption key status
Take appropriate countermeasures shown in the table below according to the messages displayed in
"SRAM Key Status" and "FROM Key Status".
Remark:
If the error is not cleared, reinstallation of the OS data, master data and application is needed.
SRAM Key FROM Key
Status Status
OK Access Failed
OK Key Null
Key Broken
Access Failed OK
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HDD format error: Operation of HDD key data fails.
Reboot the equipment.
If it cannot be recovered, reinstall the software in the following procedure.
• Install the OS data.
P.11-7 "11.2.1 Master data / System ROM / Laser ROM / PFC ROM
/ Engine ROM / Scanner ROM / RADF ROM"
HDD format error: Encryption key data of either the SYS board or the
SRAM board for the SYS board are damaged.
Check the displayed message. ([3] + [C] + [POWER] -> 5. Key Backup
Restore)
Replace the SYS board.
P.9-16 "9.2.4 Precautions and Procedures when replacing the SYS
board" (all steps)
Recover the encryption key on the SYS board.
P.9-16 "9.2.4 Precautions and Procedures when replacing the SYS
board" ([F]Restore encryption key)
Replace the SRAM board. (USB backup data are not used)
P.9-20 "9.2.6 Precautions and Procedures when replacing SRAM
board" (all steps)
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Error item
Measures
Error item
Measures
Measures
e-STUDIO556/656/756/856(Ver03)
ERROR CODE AND TROUBLESHOOTING
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