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support.dell.com Dell Latitude L400 Service Manual 21
To replace the palmrest assembly, perform the following steps:
1. Place the palmrest assembly on the bottom assembly.
2. Reinstall the three silver M2 x 6-mm screws in the keyboard-assembly area
that secure the middle of the palmrest assembly to the bottom-case
assembly (see Figure 15).
3. Reinstall the four black M2 x 4-mm screws that secure the top of the
palmrest assembly to the bottom-case assembly (see Figure 15).
4. Connect the touch pad flex cable to the ZIF connector on the system
board.
5. Connect the status lights flex cable to the ZIF connector on the system
board.
6. Turn the computer upside down.
7. Reinstall the six M2.6 x 1.6-mm screws in the battery bay that secure
the bottom of the palmrest assembly to the bottom-case assembly
(see Figure 14).
8. Turn the computer right-side up.
9. Reinstall the keyboard assembly.
10. Reinstall the display assembly.
11. Reinstall the keyboard bezel.
Touch Pad Assembly
Figure 16. Touch Pad Removal
NOTICE: To avoid damaging the system board, you must remove the
main battery before you service the computer.
1. Remove the keyboard bezel.
M2 x 3.5-mm screws (3)
flex cable
ZIF connector
touch pad
touch pad holder
assembly