Dell Inspiron Xpi Cd Service Guide

							Removing and Replacing Parts 4-23
To remove the LCD panel, follow these steps:
1. Remove the display assembly bezel.
2. Lift the lower edge of the LCD panel about 1 inch.
3. Disconnect the LCD-assembly power cable from connector CN2 on the 
LCD inverter board.
4. Lift the lower edge of the LCD panel approximately 3 inches.
5. Disconnect the display-assembly interface cable from the LCD interface 
connector on the underside of the LCD panel.
6.  Lift the LCD panel out of the display assembly case. 
						

							4-24 Dell Latitude XPi CD Service Manual
LCD Inverter Board
Figure 4-18.  LCD Inverter Board Removal
To remove the LCD inverter board, follow these steps:
1. Remove the display assembly bezel.
2. Remove screws I1 and I2 securing the display-interface cable retaining 
bracket, and then remove the bracket.
3. Move the LED board out of the display assembly case far enough to 
gain access to the LCD inverter board.
4. Disconnect the LCD-inverter board interface cable from ZIF connector 
CN1 on the LCD inverter board.
5. Lift the LCD inverter board about 
1/4 of an inch.
6. Disconnect the LCD power cable from connector CN2 on the LCD 
inverter board.
7. Lift the LCD inverter board out of the display assembly case.
Part or Assembly NameOrder Name
LCD inverter boardASSY,BD,INVRTR,TFT,SVGA12.1”
retaining bracket
I1 (5 mm)
I2 (5 mm)
5 mm
LED board inverter board
display assembly case
connector CN1
connector CN2 
						

							Removing and Replacing Parts 4-25
Hinge Covers
Figure 4-19.  Hinge Covers Removal
Each of the hinge covers is held in place by three tabs that fit into slots on the 
display assembly base. The microphone is inside the right hinge cover. To 
remove the hinge covers, follow these steps:
1. Remove the display assembly from the computer.
2. Place the display assembly faceup on the work surface.
3. Rotate the display assembly base until the display assembly hinges are 
pointing upward at approximately a 45-degree angle.
4. To remove a hinge cover, press in on the front of the cover to release the 
hinge cover’s front tab. Then rotate the cover in the direction of the 
arrow, and lift the cover away from the display assembly base.
To replace the hinge covers, set the display assembly base in the position 
shown, and reinsert the hinge cover into its original position, making sure that 
its two tab slots engage the tabs on the display assembly base. Then rotate the 
hinge cover opposite to the direction shown in Figure 4-18 until its front tab 
engages the tab slot in the display assembly base.
display 
assembly 
base
hinge hinge cover 
						

							4-26 Dell Latitude XPi CD Service Manual
Display-Assembly Interface Cable
    
Figure 4-20.  Display-Assembly Interface Cable Removal   
The display-assembly interface cable connects the system board, LCD panel, 
LCD inverter board, and LED board. The cable wraps around a bobbin. To 
remove the display-assembly interface cable, follow these steps:
1. Remove the display assembly.
2. Remove the display assembly bezel.
3. Remove the LCD panel.
4. Remove the left hinge cover.
5. Remove screws I1 and I2 securing the display-interface cable retaining 
bracket, then remove the bracket.
6. Disconnect the display-assembly interface cable from ZIF connector 
CN1 on the LCD inverter board.
Part or Assembly NameOrder Name
LCD cables, active-matrix, TFT 
SVGA display (includes display-
assembly interface, LED board, and 
LCD-inverter-board interface 
cables)SVC,CBL,LCD,TFT,SAMSUNG,
LXPiCD
I1 (5 mm)
I2 (5 mm)
connector CN1bobbin5 mm
alignment marks
on cable
retaining bracket
alignment notch 
in shoulder
LED board
display-assembly interface cable 
						

							Removing and Replacing Parts 4-27
7. Lift the display-assembly interface cable and bobbin out of the display 
assembly.
NOTE: Some computers have a display-assembly interface cable that detaches 
from the bobbin. If you have a cable with a permanently attached bobbin, stop 
here; otherwise, proceed to Step 8.
8. Look at the alignment marks on the display-assembly interface cable, 
and note the alignment of the cable to the bobbin. Then carefully detach 
the cable from the bobbin.
A double-sided adhesive strip attaches the cable to the bobbin (see 
Figure 4-20).
9. To reattach the display-assembly interface cable to the bobbin, align the 
marks on the cable with the notch in the shoulder of the bobbin, and 
then wrap the cable around the bobbin.
If you are installing a new cable, remove the protective cover from the adhesive 
strip on the new cable. Align the alignment marks on the cable with the notch in 
the shoulder of the bobbin, and then wrap the cable around the bobbin, making 
sure it stays between the shoulders of the bobbin. Place the cable and bobbin 
into the display assembly before attaching the EMI shield. 
						

							4-28 Dell Latitude XPi CD Service Manual
Microphone/Switch Assembly
Figure 4-21.  Microphone/Switch Assembly Removal
The microphone/switch assembly is inside the right hinge cover. There is a 
microphone and a magnetic reed switch on the microphone/switch assembly. To 
remove the microphone/switch assembly, follow these steps:
1. Remove the display assembly.
2. Remove the right hinge cover. (Before doing so, note the correct routing 
of the microphone cable around the display assembly base.)
3. Remove the microphone cover from the right hinge cover.
4. Open the microphone cover, and remove the microphone/switch 
assembly.
Part or Assembly NameOrder Name
Microphone service kitSVC,MIPHN/SWT,LXPiCD
microphone/switch  assembly
right hinge cover
microphone  cover
microphone/switch  cablemagnet switch 
						

							Removing and Replacing Parts 4-29
Bottom Case Assembly
The bottom case assembly consists of the following:
•Diskette/CD-ROM assembly
•Deck-buoy
•Superpart assembly
•System board
•3.1-V power supply board
•I/O-panel dust cover
•Dust cover for the Advanced Port Replicator
•Audio board 
						

							4-30 Dell Latitude XPi CD Service Manual
Figure 4-22.  Bottom Case Assembly Removal  
Part or Assembly NameOrder Name
Bottom case assemblyASSY,CVR,BTM,LXPiCD
bottom case assembly system board assembly
memory compartment coverI/O bracket clip I/O bracket clip
superpart 
assembly
3.1-V power supply
spreader plate
diskette/CD-ROM assembly
audio board 
keel plate
I/O panel 
dust coverdust cover for the 
Advanced Port 
Replicator
superpart 
serial EMI clip superpart docking EMI clip 
						

							Removing and Replacing Parts 4-31
Diskette/CD-ROM Drive Assembly  
Figure 4-23.  Diskette/CD-ROM Drive Assembly Removal
To remove the diskette/CD-ROM drive assembly, follow these steps:
1. Remove the palmrest assembly.
2. Remove screws D1 and D2 securing the diskette/CD-ROM drive assem-
bly to the bottom case assembly.
3. Lift the back of the drive assembly slightly, and then slide the drive 
assembly toward the back of the computer about 
1/4 of an inch
Part or Assembly NameOrder Name
Diskette drive assemblySVC,ASSY,FD,LXPiCD
CD-ROM drive assemblySVC,ASSY,CDROM,LXPiCD
diskette drive
CD-ROM drive
connector JCDROM
connector JFLOPD1 (4 mm)
D2 (4 mm)
4 mm
D3 (2 mm)D4 (2 mm)
D5 (2 mm)
D6 (2 mm)
2 mm
CD-ROM flex cable
bracket
bottom case assemblytab
D7 (2 mm)D8 (2 mm) D9 (2 mm)
plastic flip lock 
						

							4-32 Dell Latitude XPi CD Service Manual
4. Lift the drive assembly straight up about 1 inch.
The front edge of the drive assembly engages tabs on the bottom case 
assembly. Make sure the diskette drive assembly is clear of the tab before 
attempting to lift it out of the bottom case assembly.
5. Disconnect the diskette drive and CD-ROM drive interface cables from 
connectors JFLOP and JCDROM on the system board.
6. Lift the drive assembly out of the bottom case assembly.
When replacing the drive assembly, first connect the two drive interface cables 
to the system board. Then lower the drive assembly into the bottom case assem-
bly, beginning with its forward edge, so that the diskette drive board fits 
between the tabs in the corner of the bottom case assembly.
To separate the diskette/CD-ROM assembly into a diskette drive and a 
CD-ROM drive, remove screws D3 through D9. Lift up the CD-ROM, and 
remove it from the assembly. Slide the CD-ROM flex cable out of the slot in the 
bracket that holds the CD-ROM to the diskette drive.CAUTION: Before removing the diskette drive and CD-ROM drive
interface cables from connectors JFLOP and JCDROM, release each
connector’s plastic flip lock (see Figure 4-23). Do not pull the interface
cable from the connector; doing so can ruin the cable’s electrical
conductivity.
CAUTION: Use care when handling the diskette/CD-ROM drive; it is
fragile and will bend if handled improperly. Place the assembly on a flat
work surface, and carefully remove the small 2-mm screws. Do not bend
either the drives or the bracket. If bending occurs, the diskette or 
CD-ROM will not function correctly when inserted in the drive.