Reverse this procedure to install the system board.
IR sensor board
Description Spare part number
IR sensor board L94039-001
IR sensor board cable L94040-001
Before removing the IR sensor board, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 37).
2. Remove the bottom cover (see Bottom cover and rubber feet on page 38).
3. Remove the battery (see Battery on page 39).
4. Remove the heat sink (see Heat sink on page 48.
5. Remove the system board (see System board on page 50).
To remove the IR sensor board::
1. Remove the IR sensor board M2.0 × 1.0 screw from the IR board (1).
52 Chapter 5 Removal and replacement procedures for authorized service provider parts
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