December 2005 © TOSHIBA TEC e-STUDIO163/203 TROUBLESHOOTING
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5.3 Replacement of PC Boards
5.3.1 Replacing MAIN board
<<CAUTION IN REPLACING the MAIN board>>
The procedure for replacing the MAIN board is as follows.
<After replacing the MAIN board>
(1) Install SRAM board to the new MAIN board (from the old MAIN board).
(2) [If an expansion memory (GC-1240) has already been installed]
Install expansion memory (GC-1240) to the new MAIN board (from the old MAIN board).
(3) Update the version of system ROMs (System Firmware, OS data, UI data) (The ROMs had been
used for the old MAIN board).
*See P. 6-1 "6. FIRMWARE UPDATING" for the details of System ROM update.
(4) Perform 08-388 (Copying total counter / SRAM board → MAIN board) to recover the total
counter.
5.3.2 Replacing SRAM board
<<CAUTION IN REPLACING the SRAM board>>
The procedure for replacing the SRAM board is shown below:
(1) Take off the MAIN board from the equipment.
(2) Take off the SRAM board including the locking support from the equipment.
(3) Remove the jumper pin and release the locking support from the SRAM board, and install them
to the new SRAM board.
(4) Install the new SRAM board to the MAIN board, and install the MAIN board to the equipment.
(5) Perform 08-389 (Copying total counter / MAIN board → SRAM board) to recover the total
counter.
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