3. Detach the sensor board (2) from the system board. (The sensor board is attached to the system board
with double-sided adhesive.)
4. Remove the sensor board (3) and cable.
Reverse this procedure to install the sensor board.
WWAN antenna
To remove the WWAN antenna, use this procedure and illustration.
Table
5-14 WWAN antenna description and part number
Description Spare part number
WWAN antenna (includes left and right cables and transceivers and adhesive) M20836-001
Before removing the WWAN antenna, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 44).
2. Remove the bottom cover (Bottom cover on page 44).
3. Remove the battery (see Battery on page 45).
4. Remove the speakers (see Speakers on page 54).
Remove the WWAN antenna:
1. Detach the transceivers (1) from the top cover/keyboard surface. (The transceivers are attached to the top
cover/keyboard with double-sided adhesive.)
2. Release the cables (2) from the routing path to which they are formed in the top cover/keyboard.
68 Chapter 5 Removal and replacement procedures for authorized service provider parts ENWW
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