Toshiba e-STUDIO556 Service Manual page 830

Multifunctional digital systems

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Precautions, Procedures and Settings for Replacing PC

Boards and HDD

Precautions when replacing PC boards

If more than one of the LGC board and the SYS board require replacement, replace them in the

following procedure.

1. First, replace one of the board to be replaced.

2. Turn the power ON and confirm that "READY" is displayed.

3. Turn the power OFF.

4. Replace another board that requires replacement.

5. Repeat steps 2 to 4.

6. Do not replace the SYS and the SRAM board together.

7. Do not replace the LGC board and the EEPROM together.

When the SLG board replacement, see  P.9-26 "9.2.6 Procedures and settings when replacing

the SLG board (for e-STUDIO556/656/756/856)". *e-STUDIO556/656/756/856

When replacing the LGC board, be sure to remove IC27 from the board and install it on the new

one. Make sure that its pins are attached in the correct direction, not misaligned and not damaged

by static electricity.

When the HDD requires replacement, see  P.9-15 "9.2.3 Precautions and procedures when

replacing the HDD".

When the SYS board requires replacement, see  P.9-20 "9.2.4 Precautions and Procedures when

replacing the SYS board (for e-STUDIO556/656/756/856)".

When SRAM requires replacement, see  P.9-27 "9.2.7 Precautions and Procedures when

replacing SRAM board".

When NVRAM requires replacement, see  P.9-32 "9.2.8 Precautions and Procedures when

replacing NVRAM".

e-STUDIO556/656/756/856/557/657/757/857

REPLACEMENT OF PC BOARDS / HDD