4.
Remove the RJ-11 jack from the clip built into the base enclosure (3).
Reverse this procedure to install the RJ-11 jack cable.
System board
NOTE: All system board spare part kits include replacement thermal material.
Description Spare part number
System board for use in 4530s models with UMA graphics with WWAN 646245-001
System board for use in 4530s models with UMA graphics without WWAN 646246-001
Before removing the system board, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 47).
5. Remove the following components:
a. Bottom door (see
Bottom door on page 49).
b. Hard drive (see
Hard drive on page 52)
c. Optical drive (see
Optical drive on page 50)
86 Chapter 4 Removal and replacement procedures
