Toshiba 50CT User Guide - Page 151

System Board, Removing the System Board

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4.9 System Board 4 Replacement Procedures 4 4.9 System Board Removing the System Board To remove the system board, follow the steps below and refer to Figure 4-16. 1. Turn the computer off. Disconnect the AC adapter and optional units from the computer. 2. Remove the battery, optional PC card, HDD, optional memory module, keyboard, display assembly, and RTC battery as described in Sections 4.2 through 4.8. 3. Gently lift up on the system board near the DC Jack Harness and remove the board. NOTE: Be careful of the IR lens cover, it may fall out of the base. Also, the stereo jack plate is not attached and may fall off the system board. 4. Disconnect the DC Jack Harness from PJ401 on the system board. Figure 4-16 System board removal Installing the System Board To install the system board, follow the steps below and refer to Figure 4-16. 1. Attach the DC Jack Harness to PJ401 on the system board, then place the system board in the base. NOTE: Be sure the stereo jack plate and the IR lens cover are in place. 2. Install the RTC battery, display assembly, keyboard, optional memory module, HDD, optional PC card, and battery as described in Sections 4.8 back through 4.2. 4-20 Libretto 50CT/70CT Maintenance Manual

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4.9
System Board
4
Replacement Procedures
4-20
Libretto 50CT/70CT Maintenance Manual
4
4.9
System Board
Removing the System Board
To remove the system board, follow the steps below and refer to Figure 4-16.
1.
Turn the computer off.
Disconnect the AC adapter and optional units from the
computer.
2.
Remove the battery, optional PC card, HDD, optional memory module, keyboard,
display assembly, and RTC battery as described in Sections 4.2 through 4.8.
3.
Gently lift up on the system board near the DC Jack Harness and remove the board.
NOTE:
Be careful of the IR lens cover, it may fall out of the base. Also, the
stereo jack plate is not attached and may fall off the system board.
4.
Disconnect the
DC Jack Harness
from
PJ401
on the system board.
Figure 4-16
System board removal
Installing the System Board
To install the system board, follow the steps below and refer to Figure 4-16.
1.
Attach the
DC Jack Harness
to
PJ401
on the system board, then place the system
board in the base.
NOTE:
Be sure the stereo jack plate and the IR lens cover are in place.
2.
Install the RTC battery, display assembly, keyboard, optional memory module, HDD,
optional PC card, and battery as described in Sections 4.8 back through 4.2.