Chapter 5.12 Base Panel - Compaq 486 Maintenance And Service Manual

8. Disconnect the fan assembly cable (Figure 5-15).
9. Using a Torx T-10 screwdriver, remove the screw securing the internal
keyboard connector to the display pan (Figure 5-15).
10. Using a Torx T-15 screwdriver, remove seven screws securing the I/O
board (Figure 5-15).
To replace the I/O board, reverse the steps in the above illustration.

Chapter 5.12 Base Panel

To remove the base panel, complete the following steps:
IMPORTANT: The base panel cannot be removed with the cable lock provision
pulled out. Be sure the cable lock provision is completely pushed in before
performing the following steps.
1. Push in the cable lock provision (Figure 5-16).