Dell Inspiron Xpi Cd Service Guide

							Removing and Replacing Parts 4-33
Deck Buoy 
Figure 4-24.  Deck Buoy Removal
To remove the deck buoy, follow these steps:
1. Remove the palmrest assembly.
2. Remove the display assembly.
3. Remove the diskette/CD-ROM assembly.
4. Remove screws B1, B2, and B3.
Lift the deck buoy out of the bottom case assembly.
Part or Assembly NameOrder Name
Deck buoyASSY,CLMP,THRM,LXPiCD
B1 (10 mm)
B2 (10 mm)
B3 (10 mm)
bottom case assembly 10 mm
deck buoy 
						

							4-34 Dell Latitude XPi CD Service Manual
Superpart Assembly
Figure 4-25.  Superpart Assembly Removal   
The superpart assembly includes two speakers, two fans, the reserve battery, a 
printed circuit board for those parts, and an infrared printed circuit board. To 
remove the superpart assembly, follow these steps:
1. Remove the palmrest assembly.
2. Remove the display assembly.
3. Remove the diskette-drive/CD-ROM assembly.
4. Remove the deck-buoy.
Part or Assembly NameOrder Name
Superpart assemblySVC,ASSY,FAN/SPKR,
BRKT,LXPiCD
bottom case assembly
B4 (25 mm)
25 mm
superpart 
assembly
thermal tape 
						

							Removing and Replacing Parts 4-35
5. Remove screw B4.
Lift the superpart assembly out of the bottom case assembly.
CAUTION: To prevent tearing the thermal tape, slowly pull the super-
part assembly away from the system board. 
						

							4-36 Dell Latitude XPi CD Service Manual
Reserve Battery   
Figure 4-26.  Reserve Battery Removal
Part or Assembly NameOrder Name
Reserve batterySVC,BTRY,RSRV,LXP
CAUTION: The reserve battery provides power to the computer’s RTC
and NVRAM when the computer is turned off. Removing the battery
causes the computer to lose its date and time information as well as user-
settable parameters in the NVRAM. If possible, make a copy of this
information before you remove the reserve battery.
reserve 
battery
connector JRBAT
F1 (3 mm)
F2 (3 mm)
F3 (3 mm)
F4 (3 mm)
speaker/
fan bracket superpart
middle tab
3 mm
speaker (2) speaker (2)
superpart 
serial EMI 
clip
superpart docking EMI clip 
						

							Removing and Replacing Parts 4-37
To remove the reserve battery, follow these steps:
1. Remove the palmrest assembly.
2. Remove the superpart assembly.
3. Remove the superpart docking EMI clip and the superpart serial EMI 
clip.
4. Unplug the battery from connector JRBAT.
5. Place the superpart assembly upside down on a flat work surface.
6. Remove screws F1 through F4.
Remove the speaker/fan bracket protecting the speakers and fan.
7. Lift the battery out of its recess in the superpart assembly.
To free the reserve battery, thread the battery cable and connector through 
the opening in the plastic superpart assembly. CAUTION: When replacing the speaker/fan bracket, be sure to rein-
stall the middle tab correctly. 
						

							4-38 Dell Latitude XPi CD Service Manual
System Board Assembly
Figure 4-27.  System Board Assembly Removal
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. 
Part or Assembly NameOrder Name
System board assemblySVC,SYS,PLN,LXPiCD-150ST,
WB,0M
CAUTION: Dell uses the system’s service tag number to maintain a his-
tory of the computer and its maintenance services. Do not neglect to
transfer the service tag number to the replacement system board assem-
bly (see step 3 of “Replacing the System Board Assembly” found later in
this section).
system board assembly
bottom case assembly SB1 (5 mm)
SB2 (5 mm)
5 mm
main battery 
connector
battery 
compartment PC Card 
ejectors
molded tabs (3)
I/O docking EMI clip
I/O serial EMI clip 
						

							Removing and Replacing Parts 4-39
Removing the System Board Assembly
To remove the system board assembly, follow these steps:
1. Remove the palmrest assembly.
2. Remove the display assembly.
3. Remove the diskette/CD-ROM assembly.
4. Verify that the PC Card ejectors are fully depressed.
5. Remove the deck buoy plate. (Reinstall this part on the new system 
board.)
6. Remove the superpart assembly.
Carefully disengage the superpart docking EMI and serial EMI clips from 
the I/O docking EMI and serial EMI clips.
7. Remove screws SB1 and SB2, which retain the system board (see 
Figure 4-27).
8. Lift the system board approximately 2 inches from the back of the 
computer.
9. Disengage the front of the system board from the three molded tabs in 
the bottom case assembly.
The tabs’ approximate location is shown in Figure 4-27. The tabs are 
located alongside the hard-disk drive compartment, inside the bottom case 
assembly.
10. Lift the system board assembly out of the bottom case assembly.
NOTE: If the main battery insulator comes out with the system board assem-
bly, detach the insulator and set it aside.CAUTION: To ensure maximum cooling for the microprocessor, do
not touch the heat transfer area on the system board above the micro-
processor or on the deck buoy plate. The oils in your skin reduce the
heat transfer of the thermal pads.
CAUTION: When removing the system board assembly, be careful
not to damage the main battery connector and EMI shield on the bot-
tom of the assembly. 
						

							4-40 Dell Latitude XPi CD Service Manual
Replacing the System Board Assembly
Observe the following precautions when you reinstall a system board:
1. Before reinstalling the system board assembly, make sure the upper I/O 
bracket clip and the side I/O bracket clip are in place. If the side I/O 
bracket clip has been dislodged, reinstall it as shown in Figure 4-27.
Figure 4-28.  I/O Bracket Clips
2. While reinstalling the system board assembly, make sure the power 
button is positioned as far as it will go toward the back of the computer.
This will ensure that the power button engages the power switch properly.
3. 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.CAUTION: To avoid possible damage to the computer, make sure the
system board assembly is inserted under the three molded tabs at the
front of the bottom case assembly.
I/O bracket clip 
						

							Removing and Replacing Parts 4-41
3.1-V Power Supply Board
Figure 4-29.  3.1-V Power Supply Board Removal
To remove the 3.1-V power supply board, follow these steps:
1. Remove the palmrest assembly
2. Remove the superpart assembly.
3. Remove the 3.1-V power supply board from the system board.
The power supply board is held in place on the system board by connectors 
JPS1 and JPS2.
Part or Assembly NameOrder Name
3.1-V power supply boardCRD,PWR SPLY,LXPiCD,V3.1,NBK
connector JPS1
connector JPS2
bottom case assembly system boardpower supply board
with insulator 
						

							4-42 Dell Latitude XPi CD Service Manual
I/O-Panel Dust Cover
Figure 4-30.  I/O-Panel Dust Cover Removal
To remove the I/O-panel dust cover, follow these steps:
1. Remove the palmrest assembly.
2. Remove the display assembly.
3. Remove the superpart assembly.
4. Remove the system board.
5. Remove the I/O-panel dust cover.
Push outward on one end of the dust cover to release the pivot pin from its 
associated pivot hole. Then repeat the operation for the other end of the 
cover. After both ends have been disengaged, lift the dust cover away from 
the system board assembly.
To replace the I/O-panel dust cover, orient the cover in its original position and 
snap the pivot pins into place in their associated pivot holes. Make sure the dust 
cover opens and closes freely before you reinstall the display assembly.
Part or Assembly NameOrder Name
I/O-panel dust coverDOOR,PLSTC,I/O,LXP/NBK
I/O-panel 
dust cover pivot pin (2)
pivot hole (2)