Toshiba Satellite A300 Maintenance Manual - Page 167

system board, Removing the system board

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Replacement Procedures 4.13 system board CAUTION: 1. When handling the system board, always hold by the edges. Do not touch the printed circuit face. 2. If replacing with a new system board, execute the subtest01 Initial configuration in section 3.3 "Setting of the hardware configuration". Also update with the latest BIOS as described in Appendix G "BIOS Rewrite Procedures" and with the latest EC/KBC as described in Appendix H "EC/KBC Rewrite Procedures". Removing the system board The following describes the procedure for removing the system board. 1. Disconnect the power from the system board (See Figure 4-25) Figure 4-25 Disconnect the cable 2. Disconnect the speaker cable, USB cable from the connector on the system board. 3. Remove the following screws securing the system board and remove the system Satellite A300 Maintenance Manual(960-Q08) 36

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Replacement Procedures
4.13 system board
CAUTION:
1. When handling the system board, always hold by the edges. Do not touch
the printed circuit face.
2. If replacing with a new system board, execute the subtest01 Initial
configuration in section 3.3 “Setting of the hardware configuration”. Also
update with the latest BIOS as described in Appendix G “BIOS Rewrite
Procedures” and with the latest EC/KBC as described in Appendix H
“EC/KBC Rewrite Procedures”.
Removing the system board
The following describes the procedure for removing the system board.
1.
Disconnect the power from the system board (See Figure 4-25)
Figure 4-25
Disconnect the cable
2.
Disconnect the
speaker cable, USB cable
from the connector on the system board.
3.
Remove the following
screws
securing the system board and remove the
system
36
Satellite A300 Maintenance Manual(960-Q08)