Dell Inspiron Cs Service Guide

							Dell Latitude CS Portable Computers Service Manual 23
3. Disconnect the reserve battery cable from the connector on the system 
board and lift the reserve battery (see Figure 16).
The reserve battery is located behind the hard-disk drive, and is attached to 
the system board with an adhesive foam pad.
4. Tear the reserve battery free from the foam pad.
5. Remove the remnants of the foam pad from the system board.
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See the “Preparing to Work Inside Your Computer” section found earlier in this 
manual for detailed instructions for removing the battery.
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1. Remove the status indicator panel (see Figure 9).
2. Remove the display assembly (see Figure 10).
3. Remove the keyboard assembly (see Figure 13).
4. Remove the palmrest assembly (see Figure 14).
5. Remove the thermal cooling solution (see Figure 18).
6. Carefully disconnect the touch pad cable from the ZIF connector on the 
system board (see Figure 4 and Figure 17).
main battery release latch
tension spring
touch pad cable
release button assembly 
						

							24 Dell Latitude CS Portable Computers Service Manual
7. Grasp the top of the battery release latch and gently pull up to free it from 
the release button assembly, which is located underneath the system 
board (see Figure 17).
The battery release latch is mounted on the back side of the battery 
compartment next to the system board assembly. 
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8. Unhook the small tension spring from the metal post to remove the battery 
release latch.
The spring attaches the right end of the battery release latch to a small 
metal post located next to the hard-disk drive. 
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thermal cooling solution
M2 X 13-mm screws (4)
M2 X 4-mm screws (3) 
						

							Dell Latitude CS Portable Computers Service Manual 25
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NOTE: The thermal cooling solution screw holes are labeled with screw sizes 
and numbered for the order that the screws should be removed or installed.
1. Remove the keyboard assembly (see Figure 13).
2. Remove the four M2 x 13-mm screws grouped around the section of the 
thermal cooling solution that covers the microprocessor (see Figure 18).
The screw holes are labeled on the thermal cooling solution in the order 
that the screws should be removed (“1” through “4”).
3. Remove the three M2 x 4-mm screws in the corners of the thermal cooling 
solution.
The screw holes are labeled on the thermal cooling solution in the order 
that the screws should be removed (“5” through “7”).
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							26 Dell Latitude CS Portable Computers Service Manual
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The system board’s BIOS chip contains the system service tag number, which 
is also visible on a bar-code label on the bottom of the computer. The 
replacement kit for the system board assembly includes a diskette that 
provides a utility for transferring the service tag number to the replacement 
system board assembly.
PC Card cover
system board
fan assemblyM2 X 4-mm screws (8)
7-mm sockets (2)
5-mm sockets (4)
M2.6 X 6-mm screws (2)
M2 X 2.5 screws (2)
media-bay port covermedia-bay port 
screws (2)
fan wire connector
M2 X 2.5 screws (2)
touch pad 
						

							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). 
						

							28 Dell Latitude CS Portable Computers Service Manual
If the socket is type A, use a flat-blade screwdriver to turn the cam 
180 degrees counterclockwise. When the cam is in the open position, the 
triangular-shaped pointer on the cam points toward the “O” (open 
position), and a view window, on the lower right-hand side of the cam, 
displays a full circle (see Figure 20, type-A socket). Grasp the edges of the 
microprocessor to lift it out of the socket.
If the socket is type B, use a Phillips-head or a flat-blade screwdriver to turn 
the cam 180 degrees counterclockwise. When the cam is in the open 
position, a tab on the cam points toward the “O” (open position) (see 
Figure 20, type-B socket). Grasp the edges of the microprocessor to lift it 
out of the socket.
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15. Remove the two M2 x 4-mm screws located on the back corners of the 
hard-disk drive bay that attach the hard-disk drive electromagnetic 
interference (EMI) clips to the system board.
16. Install a new microprocessor.
To install a microprocessor in a type-A socket, place the microprocessor in 
the socket and use a flat-blade screwdriver to turn the triangular-shaped 
pointer on the cam clockwise 180 degrees toward the “L” (locked 
position). The view window displays a half circle when the cam is in the 
locked position (see Figure 20, type-A socket).
To install a microprocessor in a type-B socket, place the microprocessor in 
the socket and use a Phillips-head or flat-blade screwdriver to turn the cam 
clockwise 180 degrees so that the tab on the cam points toward the “C” 
(closed position) (see Figure 20, type-B socket).
NOTE: When replacing the microprocessor, save the package material from 
the new microprocessor to repackage the old microprocessor for transport.
17. Attach the hard-disk drive EMI clips and the PC Card cover to the new 
system board assembly.
After replacing the system board assembly, be sure to enter the system’s 
service tag number into the BIOS of the replacement system board assembly. 
Insert the diskette that accompanied the replacement system board assembly 
into the diskette drive, and turn on the computer. Follow the instructions on the 
display screen. 
						

							Dell Latitude CS Portable Computers Service Manual 29
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1. Remove the palmrest assembly (see Figure 15).
2. Remove the two M2 x 2.5-mm screws from the top of the touch pad (see 
Figure 19).
3. Carefully disconnect the ZIF connector to release the touch pad cable from 
the system board (refer to Figure 4).
4. Remove the touch pad.
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1. Remove the palmrest assembly (see Figure 15).
2. Remove the thermal cooling solution (see Figure 18).
3. Carefully disconnect the fan wire connector from the system board (see 
Figure 19).
socketopen position
type-A socket
type-B socket
socket
microprocessor
microprocessoropen position
view window 
						

							30 Dell Latitude CS Portable Computers Service Manual
The female connector on the fan wire is keyed to fit into the male 
connector one way only.
4. Remove the two M2 x 4-mm screws that secure the fan assembly to the 
bottom assembly. 
						

							Index 31
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bottom assembly
components, 
22
illustrated, 22

display assembly
bezel removal, 
13, 14
removal, 11
)
fan removal, 29
field-replaceable parts and 
assemblies illustrated, 
6
*
grounding to dissipate static 
electricity, 
3
+
hard-disk drive assembly removal, 7
.
keyboard assembly removal, 18
/
LCD panel removal, 15
0
main battery
release latch removal, 
23
removal, 3, 23
memory module
cover removal, 
8
removal, 8
microprocessor removal, 29
3
palmrest assembly
removal, 
21
screws removal, 19
5
reserve battery removal, 22
6
screw identification and tightening, 3
sockets
memory module, 
8
status indicator panel removal, 10
system board assembly 
						

							32 Dell Latitude CS Portable Computers Service Manual
illustration, 26
removal, 26
7
thermal cooling solution removal, 24
tools, 2
top memory module removal, 9
touch pad removal, 29
=
ZIF connectors, 5