Toshiba e-STUDIO556 Service Manual page 925

11.4.2 System ROM (e-STUDIO556/656/756/856)
The firmware of the system ROM can be updated by using PWA-DWNLD-JIG1.
Important:
• Be sure to shut down the equipment before installing and removing the download jig.
• Do not shut down the equipment during the update. The data could be damaged and not be
able to be operated properly.
[A] Update procedure
(1) Write the ROM data to be updated to the download jig (PWA-DWNLD-JIG1).
(2) Press the [ON/OFF] button on the control panel to shut down the equipment.
(3) Take off the cover plate.
(4) Connect the download jig with the jig connector on the SYS board.
(5) Press the [ON/OFF] button while simultaneously holding down the [8] and [9] buttons.
(6) Press the [Firmware Update] button, then press the [1] key to select "1.SYSTEM
FIRMWARE(OS Data)".
(7) Select the item with the digital keys.
"*" is displayed next to the selected item. Display or delete the "*" by pressing the number of the
item. All items are selected in the default settings.
© 2011 - 2014 TOSHIBA TEC CORPORATION All rights reserved
Fig. 11-8
Fig. 11-9
e-STUDIO556/656/756/856/557/657/757/857
11 - 35
FIRMWARE UPDATING
11