Table 5-13 System board and audio jack descriptions and part numbers (continued)
Description Spare part number
Audio jack N31280-001
Before removing thesystem board and audio jack, follow these steps:
1. Prepare the computer for disassembly (see Preparation for disassembly on page 33).
2. Remove the bottom cover (see Bottom cover on page 33).
3. Disconnect the battery cable from the system board (see Battery on page 42).
4. Remove the heat sink (see Heat sink on page 47).
Remove the system board and audio jack:
1. Disconnect the following cables from the system board:
● Left top speaker cable (1)
● Camera cable (2)
● Display cable (3)
NOTE: Remove one screw and bracket to access the display cable.
● Antenna cables from onboard WLAN module (4)
● WWAN antennas from the WWAN module (5)
● WWAN antennas from the channels on the system board (6)
● Right top speaker cable (7)
● Audio board cable (8)
● SIM board cable (9)
● Transfer board cable (10)
System board and audio jack 51