3. Remove the board from the computer (3).
Reverse this procedure to install the IR sensor board.
Card reader
To remove the card reader, use this procedure and illustration.
Table 5-15 Card reader description and part number
Description Spare part number
Card reader M82357-001
Card reader cable M57155-001
Before removing the card reader, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 31).
2. Remove the bottom cover (see Bottom cover on page 31).
3. Remove the battery (see Battery on page 32).
4. Remove the solid-state drives (see Solid-state drive on page 34).
5. Remove the power connector cable (see Power connector cable on page 38).
6. Remove the heat sink (see Heat sink on page 39).
7. Remove the fans (see Fans on page 41).
8. Remove the system board (see System board on page 45).
9. Remove the left speaker (see Speaker, right on page 37).
Remove the card reader:
1. Remove the two Phillips M2.0 × 2.5 screws (1) that secure the card reader to the computer.
50 Chapter 5 Removal and replacement procedures for authorized service provider parts
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