dell latitude cpt c series cpi r series User Manual

							Dell Latitude CPt C-Series/CPi R-Series Service Manual 23
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NOTE: You do not need to remove the main battery prior to this procedure .
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main battery
modular bay
devicebottom case assembly
system board
hard-disk drive
latch lock 
						

							24 Dell Latitude CPt C-Series/CPi R-Series Service Manual
1. Close the display and turn the computer over .
2. Remove the device from the modular bay.
Push the module latch toward the unlock icon. Keep holding the latch open
while pulling the device out of the modular bay with the other hand.
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1. Remove the main battery and remove the device from the modular bay.
2. Remove the keyboard assembly.
3. Remove the display assembly.
4. Remove the palmrest assembly.
module latch assembl ies ( 2)
spring s (2)plungers (2)
module latches (2)bottom case assembly
location of
snap tabs (2) 
						

							Dell Latitude CPt C-Series/CPi R-Series Service Manual 25
5. Remove the left latch from the outside of the bottom case assembly by
carefully squeezing the snap tabs to unsnap the module latch assembly.
Keep pressure applied to the module latch assembly while unsnapping the
snap tabs to prevent the module latch assembly from coming loose from
the case. If the module latch assembly does come loose from the case:
a. Carefully reinsert the spring onto the plunger on the module latch, and
reinstall the module latch assembly into the holding features on the
inside of the case.
b. Ensure that the plunger is inserted in its respective hole, that the side
of the latch with the two bumps is facing the back of the case, and
that the surface with the wear ribs is facing the bottom of the case
(see Figure 17).
6. Snap in the new latch from the bottom of the base, making certain its snap
features are fully engaged on the inside of the case.
7. Ensure that the newly installed latch moves smoothly and freely when
pushed and released.
8. Repeat steps 1 through 3 for the latch on the right side.
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bump side
wear ribs (2) 
						

							26 Dell Latitude CPt C-Series/CPi R-Series Service Manual
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The system board’s basic input/output system (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.
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1. Remove the keyboard assembly.
2. Remove the display assembly.
3. Remove the palmrest assembly.
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4-mm screws (2)
bottom case assemblysystem board assembly 
						

							Dell Latitude CPt C-Series/CPi R-Series Service Manual 27
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4. Remove the two 4-mm screws securing the thermal cooling assembly to
the microprocessor module (see Figure 19).
5. Loosen the three captive screws securing the microprocessor shield to the
microprocessor module.
6. Remove the microprocessor shield.
7. Rotate the arm of the thermal cooling assembly up and away from the
microprocessor module.
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8. Use a microprocessor extractor tool to remove the microprocessor
module.
The tool fits on the left side of the module aligned with white marks on the
front and back edge of the processor board (see Figure 19).
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. Remove the following two screws from the system board assembly
(see Figure 18):
‡The 4-mm screw with captive washer located on the far left side of the
computer between the hard-disk drive assembly and the PC Card slot.
4-mm screws (2)
captive screws (3)
thermal cooling
assembly arm microprocessor shield
white marks on the
microprocessor board (2)
microprocessor module 
						

							28 Dell Latitude CPt C-Series/CPi R-Series Service Manual
‡The 4-mm screw with captive washer located on the far right side of
the computer in front of the TCA and to the right of the microprocessor
module.
NOTE: Locate these screws by looking for the white circles on the system
board that outline the captive washers.
12. Lift the system board assembly out of the bottom case assembly.
Be sure to transfer the memory module(s) to the replacement 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.
When you reinstall the microprocessor module in the system board, make
sure to align the microprocessor connector on the left side of the board and
press down to insert the module connector. When the microprocessor module
is seated, all four corners must be at the same height. If one or more corners
of the module are higher than the others, the module is not seated correctly.
Rotate the arm of the thermal cooling assembly into place and replace the
microprocessor shield. Tighten the three captive screws on the corners of the
shield to secure the microprocessor module and shield. Replace the two
4-mm screws thatsecure the thermal cooling assembly arm and shield to the
microprocessor module.
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4-mm screws (2)
thermal cooling assembly
and exhaust fan 
						

							Dell Latitude CPt C-Series/CPi R-Series Service Manual 29
1. Remove the keyboard assembly.
2. Remove the display assembly.
3. Remove the palmrest assembly.
4. Disconnect the exhaust-fan power cable from the connector on the system
board.
5. Remove the two 4-mm screws securing the thermal cooling assembly and
exhaust fan, and then remove the thermal cooling assembly and exhaust
fan (see Figure 20). 
						

							30 Dell Latitude CPt C-Series/CPi R-Series Service Manual 
						

							Index 1
,QGH[
%
battery (in modular bay)
removal,
23
bottom assembly
components,
22
illustrated,23
&
CD-ROM drive
removal,
23

diskette drive
removal,
23
display assembly
bezel, removal,
18
)
field-replaceable parts and
assemblies
illustrated,
12
list of,6
*
grounding to dissipate static
electricity,
3
+
hard-disk drive assembly
removal,
13
.
keyboard assembly
removal,
15
/
LCD panel
removal,
19
LCD panel cable
removal,
20 
						

							2 Dell Latitude CPt C-Series Service Manual
0
memory module
removal,
14
memory module cover
removal,
13
modular bay devices
removal,
23
module latch assemblies
removal,
24
3
palmrest assembly
removal,
29
5
reserve battery
removal,
22
6
screw identification and tightening,3
sockets
memory module,
14
SuperDisk LS-120 drive
removal,
23
system board assembly
removal,
26
7
thermal cooling assembly
removal,
28
tools,2
travel module
removal,
23
=
ZIF connectors,5