Maintenance and Service Guide

Infrared board cable
Table 5-8 Infrared board cable spare part information
Description Spare part number
Infrared board cable L93189-001
Before removing the infrared board cable, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o 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 rst unplugging the power cord from the AC outlet, and then
unplugging the AC adapter from the computer.
4. Remove the bottom cover (see Bottom cover on page 25).
5. Disconnect the battery cable from the system board (see Front speakers on page 27).
6. Remove the fan (see Fan on page 34).
7. Remove the heat sink (see Heat sink on page 35).
Remove the infrared board cable:
1. Release the zero insertion force (ZIF) connector (1) to which the infrared board cable is connected, and then
disconnect the infrared board cable from the system board.
2. Release the ZIF connector (2) to which the infrared board cable is connected, and then disconnect
the infrared board cable from the infrared board.
3. Remove the infrared board cable (3).
Reverse this procedure to install the infrared board cable.
Component replacement procedures 37