Compaq Portable II - Automatic Power Switching Board (APS); Removing the Fan Assembly

To replace the fan assembly, reverse steps 1 through 3.
Chapter 7.8 Automatic Power Switching Board (APS)
1. Remove the power supply subassembly chassis (see Section 7.6).
NOTE: Carefully remove all three connections to the APS board when
removing the power supply chassis. Refer to Figure 7-22 for an
illustration of the APS board.