Dell Latitude CS, Service Manual, Page: 36 / 45

Dell Latitude CS Portable Computers Service Manual 27
To remove the system board assembly, perform the following steps.
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1. Remove the palmrest assembly (see Figure 15).
2. Remove the thermal cooling solution (see Figure 18).
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3. Remove the media-bay port cover from the bottom assembly by removing
the two M2 x 2.5 screws from the bottom of the media-bay port cover and
removing the two media-bay port screws (see Figure 19).
4. Remove the main battery release latch (see Figure 17).
5. Use a 5-mm socket wrench to remove the four 5-mm sockets for the VGA
and parallel ports located on the back of the bottom assembly.
6. Use a 7-mm socket wrench to remove the two 7-mm sockets for the
docking connector located on the back of the bottom assembly (or use a
flat-blade screwdriver to remove these 7-mm sockets).
7. Remove the eight M2 x 4-mm screws connecting the system board to the
bottom assembly.
These eight M2 x 4-mm screws are marked with white circles around the
screw head on the system board.
8. Remove the two M2.6 x 6-mm screws connecting the system board to the
bottom assembly.
These two M2.6 x 6-mm screws are marked with white circles around the
screw head on the system board.
9. Remove any PC Cards or plastic blanks from the PC Card slot.
10. Verify that the PC Card ejectors do not extend from the PC Card slot.
11. Carefully disconnect the fan wire connector from the system board (see
Figure 19).
The female connector on the fan wire is keyed to fit into the male
connector one way only.
12. Lift the system board assembly out of the bottom assembly.
13. Transfer the memory module(s) to the replacement system board
assembly.
14. Remove the microprocessor. The microprocessor socket is either type A or
type B (see Figure 20).