Toshiba e-STUDIO556 Service Manual page 846

[A] Backup SRAM
Note:
If "[A] Backup SRAM" fails, proceed to  P.9-28 "[B] Return License"
If "[A] Backup SRAM" succeeds, proceed to  P.9-28 "[C] Replace SRAM board".
(1) Install the USB media in the equipment, and then turn the power ON while pressing [5] and [9]
buttons simultaneously.
(2) Key in [1] to select "1. Backup SRAM Data to USB", and then press the [START] button.
(3) Enter a password (max. 15 characters) to be set for the backup data.
(4) Restart the equipment after the backup is completed.
(5) Turn the power OFF.
[B] Return License
(1) Start up with the Setting Mode (08).
(2) Enter the password, and then press the [OK].
(If the password is not set for Service, press the [OK] button without entering anything.)
(3) Key in [3840], and then press the [OK] button.
(4) Select the license to be returned, and then press the [REMOVE] button.
(5) Install the one-time dongle, which you used for uploading the selected license, in the equipment,
and then press the [OK] button.
(6) The Remove screen is displayed, then press the [YES] button. If this screen is not displayed,
check whether the one-time dongle is installed in the equipment properly.
(7) After 10 to 40 seconds passes, the screen for notifying the success of performance is displayed.
Then press the [OK] button. If this screen is not displayed or the screen for notifying the failure of
performance is displayed, quit this operation by pressing the [NO]/[CLOSE] button. Then, check
whether the one-time dongle, which you used for uploading the selected license, is installed in
the equipment.
(8) Check that the returned license is not displayed on the screen.
Note:
If there are any other licenses to be returned, repeat from step (4).
If there is no more licenses to be returned, press the [CLOSE] button, and then turn the power
OFF.
[C] Replace SRAM board
(1) Confirm that the power is turned OFF.
(2) Take off the Fax Unit (GD-1250/GD-1350) if it is installed.
(3) Replace the SRAM board.
 P.9-10 "9.1.13 SRAM board (RAM-S) (e-STUDIO556/656/756/856)"
 P.9-11 "9.1.14 SRAM board (RAM-S) (e-STUDIO557/657/757/857)"
[D] Initialized SRAM system storage area
(1) Turn the power ON while pressing [3] and [C] simultaneously.
(2) When "Firmware Assist Mode" appears on the LCD, check that "4: SRAM Data Format." is
marked and then press the [START] button. If not marked, key in [4] and then press the [START]
button.
(3) When "SRAM Data Format Complete." is displayed on the LCD, the formatting is completed.
(4) Turn the power OFF.
[E] Restore SRAM
If there is SRAM backup data, perform the following steps.
e-STUDIO556/656/756/856/557/657/757/857
REPLACEMENT OF PC BOARDS / HDD
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