Before removing the I/O board, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 30).
2. Remove the bottom cover (Bottom cover on page 30).
3. Disconnect the battery cable from the system board (see Battery on page 31).
Remove the I/O board:
1. Disconnect the cable from the larger ZIF connector (1) and smaller ZIF connector (2) on the I/O board.
2. Remove the three Phillips M2.0 × 4.0 screws (3) that secure the board to the computer, and then remove
the network jack door from the board
(4).
3. Remove the board from the computer (5).
Reverse this procedure to install the I/O board.
Touchpad
To remove the touchpad, use this procedure and illustration.
Table
5-9 Touchpad description and part number
Description Spare part number
Touchpad M21999-001
Touchpad cable (included in Cable Kit) M21713-001
Before removing the touchpad, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 30).
2. Remove the bottom cover (Bottom cover on page 30).
3. Remove the battery (see Battery on page 31).
Remove the touchpad:
40 Chapter 5 Removal and replacement procedures for authorized service provider parts
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