Compaq LTE 5100 Maintenance And Service Manual page 210

Reverse the above procedure to install a power switch board.
Chapter 6.14 IrDA Board
The bottom cover assembly must be removed before removing the IrDA board.
The IrDA board is installed as a unit with its cable permanently attached.
To remove the IrDA board, complete the following steps:
1. Prepare the expansion base for disassembly as described in Section 6.3.
2. Remove the bottom cover assembly as described in Section 6.5.
3. Disconnect the IrDA board cable and ground wire from the main board
(Figure 6-26).