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____________________ Information in this document is subject to change without notice. © 1999 Dell Computer Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Latitude are trademarks of Dell Computer Corporation; IBM is a registered trademark of International Business Machines Corporation. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own. August 1999 P/N 0813P Rev. A02
Recommended Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Preparing to Work Inside Your Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Screw Identification and Tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ZIF Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Field-Replaceable Parts and Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Removing Field-Replaceable Parts and Assemblies . . . . . . . . . . . . . . . . . . . 12 Hard-Disk Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Memory Module Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Keyboard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Back Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Palmrest Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Touch-Pad Interface Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Power Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Display Assembly Bezel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Display Assembly Latch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 LCD Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 12.1-Inch LCD Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 13.3-Inch LCD Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 LCD Display Hinge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Display-Assembly Top Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Bottom Case Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Modular Bay Devices (Diskette Drive, CD-ROM Drive, Battery, or Travel Module) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Audio Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Audio Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Bottom Case Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Module Latch Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 System Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Exhaust Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 I/R Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Reserve Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
v
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Computer Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Main Battery Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . 3 Screw Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Disconnecting an Interface Cable . . . . . . . . . . . . . . . . . . . . . . . 4 Exploded View--Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Hard-Disk Drive Assembly Removal . . . . . . . . . . . . . . . . . . . . 13 Memory Module Cover Removal . . . . . . . . . . . . . . . . . . . . . . 14 Memory Module Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Keyboard Assembly Screw Removal . . . . . . . . . . . . . . . . . . . 16 Keyboard Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . 17 Back Cover Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . 18 Palmrest Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . 19 Touch-Pad Interface Module Removal . . . . . . . . . . . . . . . . . . 20 Display Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Display Assembly Bezel Removal (12.1-Inch Display Shown). . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 LCD Panel Removal (12.1-Inch Display) . . . . . . . . . . . . . . . . . 24 Cable Layout for the 12.1-Inch LCD Panel . . . . . . . . . . . . . . . 25 LCD Panel Removal (13.3-Inch Display) . . . . . . . . . . . . . . . . . 26 Two-Piece Cable Layout for the 13.3-Inch LCD Panel . . . . . . 27 Bottom Case Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Modular Bay Device Removal . . . . . . . . . . . . . . . . . . . . . . . . . 30 Audio Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Bottom Case Bracket Removal . . . . . . . . . . . . . . . . . . . . . . . . 32 Module Latch Assemblies Removal . . . . . . . . . . . . . . . . . . . . 33 Left Slider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 System Board Assembly Removal . . . . . . . . . . . . . . . . . . . . . 35 One- and Two-Slot Processor Hold-Down Clips . . . . . . . . . . . 37 Microprocessor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Exhaust Fan Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 I/R Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Reserve Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Parts and Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 1.
vi
vii
A prerequisite for using this manual to service Dell computer systems is a basic knowledge of IBM-compatible PCs and prior training in IBM-compatible PC troubleshooting techniques. In addition to information provided in this manual, Dell provides the System Users Guide for troubleshooting procedures and instructions on using the Dell Diagnostics to test the computer system.
Throughout this guide, blocks of text may be accompanied by an icon and printed in bold type or in italic type. These blocks are notes, cautions, and warnings, and they are used as follows: NOTE: A NOTE indicates important information that helps you make better use of your computer system.
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viii
This manual provides instructions for removing and replacing field-replaceable components, assemblies, and subassemblies in your Dell Latitude portable computer. Unless otherwise noted, each procedure in this chapter assumes the following:
The computer and any attached peripherals are turned off, and the peripherals
are disconnected from the input/output (I/O) panel on the back of the computer.
A part can be replaced by performing the removal procedure in reverse order.
When the display assembly is open nearly 180 degrees, use a book or something similar to support it. The angle of the display assembly with respect to the bottom case should never be allowed to exceed 180 degrees. Also, when performing the procedures in this manual, the locations or directions relative to the computer are as shown in Figure 1 unless otherwise specified.
back of computer
left side
right side
front of computer
Dell Latitude CPi A Service Manual
1
Most of the procedures in this manual require the use of one or more of the following tools:
Number 0 and number 1 magnetized Phillips-head screwdrivers Small flat-blade screwdriver Small plastic scribe Processor extractor
Before you start to work on the computer, perform the following steps: 1. Save any work in progress and close all open applications. 2. Turn off the computer and any attached peripherals. NOTE: Make sure the computer is turned off and not in suspend-to-disk mode. If you cannot shut down the computer using the computer's operating system, press the power button for 4 seconds. 3. If the computer is docked in a C/Dock Expansion Station or C/Port Advanced Port Replicator (APR), undock the computer. 4. Disconnect the computer and any attached peripherals from AC power sources to reduce the potential for personal injury or shock. Also disconnect any telephone or telecommunications lines from the computer. 5. Remove the power cord. 6. Disconnect all other external cables from the computer. 7 . Remove any installed PC Cards.
#$$
%
8. Remove the main battery assembly from the battery bay. Slide the battery bay latch away from the center of the computer. Then slide the battery out of the battery bay (see Figure 2).
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Dell Latitude CPi A Service Manual
9. Ground yourself by touching the unpainted metal surface of the I/O panel on the back of the computer. While you work, periodically touch the I/O panel to dissipate any static electricity that might harm components.
The illustrations in the following removal procedures provide the correct screw length as part of the screw's label. A graphic for that length screw is also included in the illustration. Examples are shown in Figure 3. Match the actual screw to the graphic in the illustration to check for correct length.
!"
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%
#$
%
Dell Latitude CPi A Service Manual
3
Some of the computer's interface connectors are zero insertion force (ZIF) connectors. These connectors are not removable, but they must be released to disconnect a cable from them (see Figure 4).
movable part of connector (do not remove)
#$ "
&'
%
To disconnect an interface cable from a ZIF connector, perform the following steps: 1. Insert a small flat-blade screwdriver under the movable part of the connector. 2. Pull gently upward on the movable part of the connector until it releases the interface cable. 3. Grasp the interface cable and pull it out of the connector. To reconnect an interface cable to a ZIF connector, perform the following steps: 1. Use a small flat-blade screwdriver to open the movable part of the ZIF connector. 2. Orient the end of the interface cable with the ZIF connector, and insert the end of the cable into the connector. 3. While holding the cable in place, close the ZIF connector. To ensure a firm connection, make sure the ZIF connector is completely closed.
4
Dell Latitude CPi A Service Manual
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Table 1 lists the parts and assemblies available for the computer. Some parts may only be available as part of a service kit or assembly and are provided for reference only. The subsections that follow Table 1 provide instructions for removing and replacing these parts and assemblies. %&!
Customer kit, AC adapter AC adapter Power cable, U.S.
CUS,ADPT,AC,EXT,20V,70W, NBK,CPi A ADPT ,AC,EXT ,20V,70W,3WIRE, CPi A CORD,PWR,110V,6F ,AC,3W\3P ,US
Service kit, audio board
SVC,PWA,AUDIO,CPi A
22
Audio shield
SHLD,W/SPR,AUDIO CRD
22
Service kit, back cover assembly Back cover assembly Docking bar Docking door
SVC,SUBASSY , BK CVR/DOOR,I/O,CPi A ASSY ,BK PLT/DOOR,I/O,CPi A BAR,DOOR,DCKG,MET DOOR,DCKG,PLSTC,I/O
11
!
Customer kit, main battery Main battery
CUS,BTRY ,MN,14.4V,8CELL, LITH BTRY ,MN,14.4V,8CELL,LITH
"!
2
Service kit, reserve battery Reserve battery Reserve battery sponge pad
SVC,BTRY ,RSRV,7 .2V,30MAH,6, NIHD BTRY ,RSRV,7 .2V,30MAH,6, NIHD PAD,FOAM,BRTY ,RSRV,CPi A
31
Bottom case assembly
ASSY ,CVR,BTM,PLSTC, BASE,CPi A
5, 26
Dell Latitude CPi A Service Manual
5
%&!
Bottom case bracket assembly
ASSY ,BRKT ,CASE,BTM
20, 23
#$" #
Service kit, CD-ROM drive CD-ROM drive bezel 24X CD-ROM drive CD-ROM drive interface board Bottom CD-ROM drive cover Top CD-ROM drive cover CD-ROM drive shield CD-ROM drive label
SVC,SUBASSY ,CD,24X,NBK BZL,CD CD,680M,INT ,NBK PWA,CD/FDD INTERCONN,SE CVR,BTM,PLSTC,CD,CPi A CVR,TOP ,PLSTC,CD,CPi A SHLD,CD,CPi A LBL,REG,CD,24X
21
##
Diskette drive service kit Diskette drive subassembly Diskette drive Diskette drive assembly bottom cover Diskette drive assembly top cover Diskette drive assembly interface board Diskette drive assembly interface cable Diskette drive assembly shield
SVC,SUBASSY ,FD,F3, INT/EXT ,CPi A SUBASSY ,FD,F3,INT/EXT ,CPi A FD,F3,CPi A CVR,BTM,PLSTC,FD,F3,CPi A CVR,TOP ,PLSTC,FD,F3,CPi A PWA,INTFC,FD,F3,CPi A CBL,FPC,FD,F3,CPi A SHLD,FD,F3,CPi A
%&
21
Service kit, exhaust fan
SVC,FAN,25X25X10,CPi A
29
6
Dell Latitude CPi A Service Manual
%&!
'$##
Hard-disk drive, subassembly Hard-disk drive Hard-disk drive interface board Hard-disk drive bracket
SUBASSY ,HD,xxxxx,I,yyyMM, * CPi A HD,xxxxx,I,yyMM,NBK,zzz* PWA,INTERCONN,HD,CPi A BRKT ,HD,CPi A
6
'$##(#
Hard-disk drive carrier bracket/ door assembly service kit Hard-disk drive carrier door Hard-disk drive carrier bracket Hard-disk drive carrier insulator Hard-disk drive carrier screws
SVC,ASSY ,BRKT/DOOR, HD,CPi A DOOR,HD,12.5MM,CPi A BRKT ,HD,12.5MM,CPi A INSUL,HD,CPi A SCR,M3X3,PHH,LP ,ZPS
)("
6
Service kit, I/R board
SVC,PWA,FAST IR,CPi A
*
30
Keyboard, Belgian Keyboard, Chinese Keyboard, Danish Keyboard, French Keyboard, French/Canadian Keyboard, German Keyboard, Italian Keyboard, Japanese Keyboard, Korean Keyboard, Latin American Keyboard, Norwegian Keyboard, Portuguese
*
KYBD,88,BEL,CPi A KYBD,87 ,CHI,CPi A KYBD,88,DEN,CPi A KYBD,88,FR,CPi A KYBD,87 ,FR CAN,CPi A KYBD,88,GER,CPi A KYBD,88,ITALIAN,CPi A KYBD,90,JPN,CPi A KYBD,87 ,KOR,CPi A KYBD,88,LAC,CPi A KYBD,88,NOR,CPi A KYBD,88,PORTUGEUSE,CPi A
10
Substitute the drive capacity for xxxxx, the drive height for yy, and the manufacturer for zzz.
Dell Latitude CPi A Service Manual
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%&!
*
Keyboard, Russian Keyboard, Spanish Keyboard, Swedish/Finnish Keyboard, Swiss Keyboard, Thai Keyboard, English (U.K.) Keyboard, English (U.S.)
KYBD,87 ,RUS,CPi A KYBD,88,SPN,CPi A KYBD,88,SWE,CPi A KYBD,88,SWI,CPi A KYBD,87 ,THAI,CPi A KYBD,88,UK,CPi A KYBD,87 ,DOM,CPi A
#
Display top-cover service kit, 13.3/12.1-inch display Display top cover Display top-cover EMI shield
SVC,ASSY ,CVR,TOP ,LCD,CPi A CVR,TOP ,LCD,TFT ,CPi A SHLD,EMI,DIS,TFT ,CPi A
+#
,-./-$)#
12.1-inch LCD/Cable service kit, including LCD, brackets, cable, and inverter Bezel service kit, 12.1-inch display Display assembly bezel Bezel retaining screw covers, upper corners, 12.1-inch display Bezel retaining screw covers, lower Display-assembly-bezel retaining screw covers, latch, 12.1-inch display
SVC,LCD/CBL/INV,TFT ,zzz,12.1" , * CPi A SVC,BZL,LCD,12.1" ,CPi A BZL,LCD,TFT ,12.1" ,CPi A CVR,SCR,TOP ,RND,ADH
16, 17
15
CVR,SCR,BTM,OVAL,ADH CVR,SCR,TOP ,OVAL,SM,ADH,12.1
+#
,-0/0$)12#
13.3-inch LCD/Cable service kit, including LCD, brackets, cable, inverter, and bezel
SVC,LCD/CBL/INV,TFT ,zzz,13.3" , * CPi A
+#+
18, 19
Latch service kit
*
SVC,LATCH,DIS,BZL,CPi A
14, 15
Substitute the drive capacity for xxxxx, the drive height for yy, and the manufacturer for zzz.
8
Dell Latitude CPi A Service Manual
%&!
+#,
13.3/12.1-inch display Right hinge Left hinge HNG,RT ,LCD,TFT HNG,LF ,LCD,TFT
14, 15 14, 15
Customer kit, memory module, 32-MB Customer kit, memory module, 64-MB Customer kit, memory module, 128-MB
32MB,DIMM,SDRAM,LAT CPi A,FACT 64MB,DIMM,SDRAM,LAT CPi A,FACT 128MB,DIMM,SDRAM,LATCPiA,FACT
#
Service kit, memory door assembly Memory/BIOS door subassembly
SVC,SUBASSY ,DOOR, MEM/BIOS,CPi A SUBASSY ,DOOR, MEM/BIOS,NB,CPi A
7
Touch-pad bracket Air flow duct
BRCKT,TPAD,CPi A GDE,INTK,AIR,FAN,PLSTC,CPi A
13 26
Service kit, palmrest assembly Palmrest assembly Power button Power button spring
SVC,SUBASSY ,PLMRST ,CPi A ASSY ,PLMRST ,GRY ,CPi A SWT ,PWR SW, CPi A SPR,PWR SW,CPi A
12
Dell Latitude CPi A Service Manual
9
%&!
LCD panel LCD hinge LCD bezel Keyboard Thermal cooling assembly Touch pad Palmrest, front edge Palmrest, hard-disk drive area I/R board Back cover Audio board Bottom-case bracket Exhaust fan
SCR,M2X4.5,PHH,LP ,ZPS SCR,M3X5,PHH,LP ,ZPS SCR,M2X4.5,PHH,LP ,ZPS SCR,M2.6X12,PHH,LP ,ZPS SCR,M2X3.5,PHH,LP ,ZPS SCR,M2.6X1.8,PHH,XLP ,ZPS SCR,M2.6X12,PHH,LP ,ZPS SCR,M2.6X5,PHH,LP ,ZPS SCR,M2.6X5,PHH,LP ,ZPS SCR,M2.6X5,PHH,LP ,ZPS SCR,M2.6X5,PHH,LP ,ZPS SCR,M2.6X5,PHH,LP ,ZPS SCR,M2.6X12,PHH,LP ,ZPS
16, 18 14 15 10 26 13 12 12 30 11 22 23 29
Left speaker assembly Right speaker assembly
SUBASSY ,SPKR,LF ,W/WIRES SUBASSY ,SPKR,RT,W/WIRES
System board assembly, CPi A, service kit System board assembly, CPi A, service kit Service tag installation diskette BIOS flash diskette Diagnostic diskette System board assembly
SVC,ASSY ,PRM/PWA,ENGINE,CPi A SVC,ASSY ,PRM/PWA,ENGINE,CPi A DSK,BIOS,FLDSVC,F3,US,CP KIT ,BIOS,FLASH,UPG,F3,CP KIT ,DSK,DIAG,F3,CPi A,WW ASSY ,PRM/PWA,ENGINE, CPi A
26
10
Dell Latitude CPi A Service Manual
%&!
System board assembly (400 MHz processor with 13.3-in display; 366 MHz processor with 12.1-in display) System-board engine subassembly I/R board Microphone boot Main system board Video/PC Card board LED board Exhaust fan and cable Microphone Reserve battery Foam pad
ASSY ,PRM/PWA,ENGINE, CPi A
SUBASSY ,PWA/ENGINE,CPi A PWA,FAST IR,CPi A GRMT ,RBR,BOOT ,MCPHN PWA,PLN,0M,NB,CPi A PWA,DTRBD,VID/PCMCIA,CPi A PWA,LED,CPi A FAN,25X25X10,CPi A MCPHN,CPi A BTRY ,RSRV,7 .2,30MAH,6,NIHD PAD,FOAM,BTRY ,RSRV,CPi A
3
Service kit, thermal cooling subassembly
SVC,SUBASSY ,HTSNK, CPU,HYB,CPi A
3
26
Touch-pad service kit Touch-pad subassembly
SVC,TPAD,SQ,INTFC,CPi A TPA,INTFC,CPi A
13
Dell Latitude CPi A Service Manual
11
$
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display assembly
keyboard
palmrest assembly
back cover assembly
main battery
modular bay device bottom case assembly
'()
!!*+
The following subsections provide instructions for removing and replacing field-replaceable parts and assemblies.
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Dell Latitude CPi A Service Manual
5-mm screws (2)
hard-disk drive door
,-!.$/$ (
$
$)
* +, (
$
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#$$
1. Turn the computer over, and remove the two 5-mm screws from the hard-disk drive door. The drive is on the left side of the computer. 2. Grasp the drive door and pull the drive out of the computer.
Dell Latitude CPi A Service Manual
13
indentation
memory module cover
0 !
#$$
1. Close the display, and turn the computer upside down on a flat work surface. 2. Release the memory module cover. Insert a fingertip in the indentation in the bottom case assembly and lift the cover slightly; then slide the cover in the direction indicated by the arrow on the cover.
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Dell Latitude CPi A Service Manual
memory module sockets (2) retaining clips (2 per socket)
1 ! 1. Remove the memory module cover. 2. To avoid possible damage to the memory module from electrostatic discharge (ESD), ground yourself by touching the unpainted metal surface of an I/O connector on the computer's back panel. 3. To release a memory module from its socket, gently push outward on each of the memory module's two metal retaining clips. The memory module rotates upward out of its retaining clips. 4. Lift the memory module out of its socket. You can install memory modules only one way. Do not attempt to force the memory module into the socket. Align the notch near the center of the memory module with the corresponding key in the memory module socket.
Dell Latitude CPi A Service Manual
15
To remove the keyboard assembly, perform the following steps. #$$
1. Close the display assembly, and turn the computer upside down on a flat work surface (see Figure 9).
12-mm screws (6)
23! 2. Remove the six 12-mm screws securing the keyboard to the computer. 3. Turn the computer right-side up and open the display. $
$
%
%
(
.
$ 4. Release the keyboard from the palmrest assembly: a. Carefully deflect the palmrest (next to the blank key below the key; see Figure 10) away from the center of the keyboard, until the tab on the palmrest's inner edge disengages from the keyboard. The keyboard should raise up slightly. b. Insert a fingernail or a small flat-bladed screwdriver under the scalloped edge of the blank key (see Figure 10), and lift the right edge of the keyboard.
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Dell Latitude CPi A Service Manual
metal tabs (2) keyboard
plastic tabs (2)
scalloped edge of blank key
palmrest deflect palmrest outward to release keyboard
43! 5. Once the keyboard is fully released from the palmrest, place the keyboard upside down over the touch pad. 6. Disconnect the keyboard cable from connector KB1 on the system board. 7 . Remove the keyboard assembly.
Perform the following steps when you replace the keyboard assembly:
1. Connect the keyboard cable to connector KB1 on the system board.
2. Fit the left edge of the keyboard into place, making sure the two small metal tabs on the keyboard fit under the corresponding plastic tabs on the palmrest's inner edge. 3. Lower the right edge of the keyboard into place, and press on the blank key below the key until the tab on the palmrest's inner edge engages the keyboard with an audible "click." 4. Check that the keyboard is correctly installed. The keys should be flush with the left and right surfaces of the palmrest. 5. Reinstall the six 12-mm screws.
Dell Latitude CPi A Service Manual
17
5-mm screws (12)
/
1. 2. Close the display. Remove the twelve 5-mm screws securing the back cover:
Five screws on the underside of the back cover One screw behind the docking connector door Six screws on the face of the back cover
3. Close the docking connector door. 4. Remove the back cover assembly. Grasp the right end of the back cover assembly firmly, and unsnap it from the computer. Then disengage the left end of the back cover assembly.
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Dell Latitude CPi A Service Manual
The palmrest assembly consists of the touch pad and the palmrest.
palmrest assembly 5-mm screws (2)
5-mm screw
bottom case assembly
12-mm screws (3)
& 1. Remove the keyboard. 2. Disconnect the touch-pad cable from ZIF connector JP2 on the system board. 3. Remove the back cover assembly. 4. Remove the following screws securing the palmrest to the computer:
One 5-mm screw inside the computer, adjacent to the thermal cooling
assembly.
Two 5-mm screws inside the upper edge of the hard-disk drive bay.
(You must remove the hard-disk drive to access these screws.)
Three 12-mm screws underneath the front edge of the computer.
Dell Latitude CPi A Service Manual
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5. Turn the computer right-side up on the work surface, and open the display assembly 180 degrees. NOTE: Support the display assembly with a book or similar object so that the display assembly does not open beyond 180 degrees. 6. Carefully remove the palmrest assembly from the bottom case assembly. The palmrest assembly is secured in the bottom case assembly by four snaps and tabs on the right and left ends of the palmrest. Take care not to damage the snaps when removing the palmrest. NOTE: When you replace the palmrest, ensure that the vertical tab at the back of the palmrest fits on the outside of the system board assembly, near the parallel port connector. Also, check that the microphone boot is properly located in its slot on the top electromagnetic interference (EMI) shield and is fitted within the palmrest assembly.
1.8-mm screws (4) touch-pad bracket interface connector J1 touch-pad interface module
touch-pad cable
palmrest assembly
%5.&! "! 1. Remove the palmrest assembly. 2. Turn the palmrest assembly upside down on a flat work surface. 3. Remove the four 1.8-mm screws securing the touch-pad bracket.
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Dell Latitude CPi A Service Manual
4. Carefully disconnect the touch-pad cable from ZIF connector J1 on the touch-pad interface module. To release the ZIF connector latch, use a fingernail to lift up the central portion of the black plastic latch. 5. Remove the touch-pad interface module from the palmrest.
1. Remove the palmrest assembly. 2. Turn the palmrest assembly upside down on a flat work surface. 3. Compress the two catches securing the power button, and remove the power button and spring from the palmrest assembly.
!
display assembly
black 5-mm displayassembly interfacecable grounding screws (2)
5-mm screws (4) display-assembly interface cable hinges (2)
#$
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1. Remove the back cover assembly. 2. Remove the keyboard. 3. Remove the palmrest assembly. 4. Remove the two black 5-mm interface-cable grounding screws and the interface cable bracket. 5. Disconnect the display-assembly interface cable from connector JP1 on the system board. Grasp the grounding tabs and pull the connector straight up from the system board. 6. Close the display, being careful not to damage the display-assembly interface cable. 7 . Remove the four silver 5-mm screws securing each of the two hinge brackets to the bottom case assembly.
8. Lift the display assembly from the bottom case assembly. NOTE: When you reinstall the display assembly, install the four screws securing the hinges at the locations marked by arrows on the face of each hinge.
(
%
/
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Dell Latitude CPi A Service Manual
!
"
4.5-mm screws (4)
screw covers (6)
display assembly bezel 5-mm screws (2)
display-assembly top cover
'$
6 7. 5$
58 1. Use a scribe to carefully pry the screw covers out of the six screw holes in the bezel. 2. Remove the six screws from the bezel. The four upper screws are 4.5-mm screws, while the two lower screws are 5-mm in length. 3. Separate the bezel from the display-assembly top cover. The bezel is secured by snaps around all four of its edges. Insert your fingertips between the bezel and the LCD panel, and lift upward on the bezel to release the hidden snaps. Avoid pressing on the surface of the LCD panel.
!
#
NOTE: On a 13.3-inch display, you must remove the LCD panel before you can remove the display assembly latch. 1. Remove the display assembly bezel. 2. Remove the display assembly latch by unsnapping the latch and captive spring from the inside of the display assembly top-cover assembly.
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#
The following subsections describe how to remove an LCD panel.
4.5-mm screws (2) LCD panel LCD panel power cable
interface connector
LCD inverter board display-assembly top cover
,9
$& 7. 5$
8 1. Remove the back cover assembly. 2. Remove the keyboard. 3. Remove the palmrest. 4. Remove the display assembly bezel. 5. Remove the two 4.5-mm screws at the right corners of the LCD panel. 6. Remove the two screws holding the interface connector. 7 . Disconnect the interface connector. Figure 17 shows the cable layout for a 12.1-inch LCD panel.
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Dell Latitude CPi A Service Manual
8. Use the yellow tab to lift the right side of the LCD panel, slide the LCD panel to the right, and then lift the LCD panel out of the top cover. NOTE: Remove and replace the LCD as a whole assembly.
inverter connector
LCD connector
interface connector
0
9"5. 59
$&
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25
LCD panel 4.5-mm screws (2)
interface cable
LCD inverter board LCD panel power cable
display-assembly top cover
19
$& 7. 5$
8 1. Remove the display assembly bezel. 2. Remove the two 4.5-mm screws at the right corners of the LCD panel. 3. Use the yellow tab to lift the right side of the LCD panel, slide the LCD panel to the right, and then pivot the panel up. 4. Remove the connector tape from the interface cable at the center-junction connector on the back of the LCD panel (see Figure 19). 5. Disconnect the interface cable at the center-junction connector.
$
Figure 19 shows the two-piece (A and B) cable layout for a 13.3-inch LCD panel.
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Dell Latitude CPi A Service Manual
6. Disconnect the display-assembly interface cable from the ZIF connector on the inverter that is located on the right side of the LCD panel. To disconnect the cable, carefully work the cable connector free from the ZIF connector on the LCD panel. Do not pull on the LCD interface cable itself. NOTES: When you replace the 13.3-inch LCD display, always replace the display assembly bezel with the new one that comes with the LCD display. If you need to replace the bottom LCD cable on the 13.3-inch display, use one bend to route the new cable to the inverter board connector. If you need to replace the bottom LCD cable on the 12.1-inch display, use two bends to route the new cable to the inverter board connector.
LCD B cable (stays with LCD panel)
connector tape center-junction connector inverter connector
LCD A cable
interface connector
2%.&
9"5. 59
$&
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#
!
$
1. Remove the LCD display assembly from the computer. 2. Remove the display assembly bezel. 3. Remove the four silver 5-mm screws securing the two hinge brackets to the display-assembly top cover. NOTE: To aid in reinstalling the hinges and display assembly, the right and left hinges are marked by an "R" and an "L," respectively. Install the four screws securing the hinges at the locations marked by arrows on the face of each hinge.
!
!
1. Remove the display assembly. 2. Remove the display assembly bezel. 3. Remove the LCD panel. 4. Remove the display assembly latch. 5. Remove the left and right hinges. 6. Remove the display-assembly interface cable.
The bottom case assembly consists of the following field-replaceable components:
Modular bay device (diskette drive assembly, CD-ROM drive assembly,
or travel module)
Back cover assembly Audio shield Audio board Bottom case bracket Module latch assemblies Speakers System board assembly Thermal cooling assembly Air flow duct Exhaust fan Infrared (I/R) board Reserve battery
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Dell Latitude CPi A Service Manual
audio board audio shield
thermal cooling assembly I/R board
system board assembly air flow duct
bottom case bracket
module latch assembly (2)
main battery
exhaust fan
speakers (2)
modular bay device
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%
&
'( &
&
)
latch lock
!$ NOTE: You do not need to remove the main battery or hard-disk drive prior to this procedure. #$$
1. Close the display and turn the computer over. 2. Remove the device from the modular bay. Push the modular bay latch away from the center of the computer. Keep holding the latch open while pulling the device out of the modular bay with the other hand.
*
1. Remove the back cover assembly. 2. Remove the keyboard assembly. 3. Remove the palmrest assembly. 4. Remove the 5-mm screw securing the audio shield (see Figure 22). 5. Remove the 5-mm screw securing the EMI drain wire. 6. Remove the audio shield. NOTE: When you replace the audio shield, ensure that the audio shield is properly seated to prevent it from cutting into the speaker wires or interfering with devices installed in the modular bay. (You can check this by temporarily installing a device in the modular bay prior to reinstalling the palmrest assembly.)
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Dell Latitude CPi A Service Manual
5-mm screw
audio shield microphone connector audio board speaker connectors
speaker wires
!! 1. Remove the back cover assembly. 2. Remove the keyboard assembly. 3. Remove the palmrest assembly. 4. Remove the 5-mm screw securing the audio shield. 5. Remove the 5-mm screw securing the EMI drain wire. 6. Remove the audio shield. 7 . Disconnect the speaker wires and microphone wire from their connectors on the audio board. The connectors are fragile--do not pull on the wires to disconnect them. 8. Remove the audio board from the bottom case. NOTE: When you replace the audio shield, ensure that the audio shield is properly seated to prevent it from cutting into the speaker wires or interfering with devices installed in the modular bay. (You can check this by temporarily installing a device in the modular bay prior to reinstalling the palmrest assembly.)
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left speaker left speaker wires plastic retaining clip
5-mm screws (3)
slot right speaker
/ 1. Remove the back cover assembly. 2. Remove the keyboard assembly. 3. Remove the palmrest assembly. 4. Remove the 5-mm screw securing the audio shield and the 5-mm screw securing the EMI drain wire. 5. Remove the audio board shield. 6. Disconnect the speaker wires from connectors JP1 and JP2 on the audio board. The connectors are fragile--do not pull on the speaker wires to disconnect them. 7 . Remove the two 5-mm screws on the left side and one 5-mm screw on the right side of the bottom case bracket.
8. Insert the end of a small flat-blade screwdriver into the slot in the vertical support in the center of the bottom case, and disengage the plastic retaining clip. 9. Lift the bottom case bracket from the computer.
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Dell Latitude CPi A Service Manual
NOTE: When you replace the bottom case bracket, follow these guidelines to prevent damage to the speaker wires:
Orient each speaker in the bottom case so that its wires are facing upwards. Route the speaker wires under their respective retaining clips on the bottom
case bracket.
#
module latch assemblies (2)
plungers (2)
springs (2)
module latches (2)
#!95 1. Remove the bottom case bracket. 2. Remove the left latch from the outside of the bottom case by unsnapping the slider-spring assembly. Keep pressure applied to the slider-spring assembly while unsnapping the latch to prevent the slider-spring assembly from coming loose from the case. If the slider-spring assembly does come loose from the case: a. Carefully reinsert the spring onto the plunger on the slider, and reinstall the slider-spring assembly into the holding features on the inside of the case.
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b. Ensure that the plunger is inserted in its respective hole, that the side of the slider with the two bumps is facing the rear of the case, and that the surface with the wear ribs is facing the bottom of the case (see Figure 25). 3. Snap in the new latch from the bottom of the base, making certain its snap features are fully engaged in the slider. 4. Ensure that the newly installed latch moves smoothly and freely when pushed and released. 5. Repeat steps 1 through 4 for the latch on the right side. 6. On the base plastic, find the molded label "P ASSY 89501"; then use a .N. permanent marker to write " A01" to the right of "89501." This revision mark indicates that the latch rework is complete.
bump side
wear ribs (2)
'9"!
*!
1. Remove the bottom case bracket. 2. If you are replacing the left speaker, carefully remove the speaker wires from the retaining clips along the bracket's edges. 3. Remove the speaker from the bottom case bracket. NOTE: When you replace the speaker, follow these guidelines to prevent damage to the speaker wires:
Orient the speaker in the bottom case so that the speaker wires are facing
upwards.
Route the speaker wires under their retaining clips on the bottom case
bracket.
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Dell Latitude CPi A Service Manual
*
thermal cooling assembly 3.5-mm screws (2)
system board assembly
air flow duct
5-mm screws (2)
3.5-mm screw bottom case assembly
, ! 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. 1. Remove the back cover assembly. 2. Remove the keyboard assembly. 3. Remove the palmrest assembly.
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0
%
*-
$
4. Remove the two 3.5-mm screws securing the TCA to the microprocessor module. 5. Remove the TCA from the microprocessor module. 6. If a processor hold-down clip is attached to the processor module fence, remove the clip. Your computer may have a one- or two-slot hold-down clip. One tab locks the one-slot hold-down clip to the fence. Two tabs lock the two-slot clip to the fence. To remove the clip, perform the following steps to bend the tabs away from the fence: a. Insert a small flat-blade screwdriver into one of the slots at the top of the clip (see Figure 27). b. Bend the tab away from the fence by carefully tipping the screwdriver away from the processor module. c. If your computer has a two-slot hold-down clip (see Figure 27), repeat substeps a and b for the second slot . d. Lift the clip off the fence and discard it.
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Dell Latitude CPi A Service Manual
processor-module fence slot one-slot hold-down clip
processor-module fence slots
two-slot hold-down clip
0.!%.-!.$
7 . Remove the three screws that secure the processor module to the system board.
8. Use a processor extractor tool to remove the processor module. The tool fits on the left side of the module, in the notches. /
1
0
9. Remove the air flow duct. 10. Verify that the PC Card ejectors do not extend from the PC Card bay. 11. Remove the 2.5-mm screw from the center of the computer's left rear foot.
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12. Remove the following two screws from the system board assembly (see Figure 26):
The 5-mm screw near the reserve-battery cable connector The 5-mm screw near the microprocessor module
13. 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. If you are replacing the thermal cooling assembly with a new one, remove any lining present on the thermal pad before installing the new thermal cooling 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. When you reinstall the microprocessor module in the system board, make sure you press down evenly at all four corners of the module. 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. To ensure the microprocessor module is seated correctly, look at the holes on the processor-module fence. You should see no less than the top half of the holes all the way around the microprocessor module (see Figure 28). Install the three screws to secure the microprocessor module to the system board. Place a new processor hold-down clip (either a one-slot or two-slot clip) over the corner of the fence as shown in Figure 28. Press the clip down to lock it in place. Do not reuse the old clip.
processor hold-down clip (one-slot clip shown)
processor-module fence holes
1
!
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Dell Latitude CPi A Service Manual
+,
-
exhaust fan power cable connector (JFAN1) 12-mm screws (2) exhaust fan
2()5 1. Remove the back cover assembly. 2. Remove the keyboard assembly. 3. Remove the palmrest assembly. 4. Disconnect the exhaust fan power cable from connector J10 on the system board. 5. Remove the two 12-mm screws securing the exhaust fan, and then remove the exhaust fan. NOTE: When you replace the exhaust fan, orient the fan so that the fan label faces outward and the power cable is at the upper-right corner of the fan (when viewed from the back of the computer). (This prevents the fan wires from being pinched when you reassemble the computer.) Make sure that the wires are routed under the upper EMI shield.
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.'
5-mm screw
I/R board
4 :! 1. Remove the palmrest assembly. 2. Remove the 5-mm screw securing the I/R board to the system board assembly. 3. Lift the I/R board straight up from the system board assembly.
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Dell Latitude CPi A Service Manual
'
reserve battery
reserve battery cable connector (JBAT1)
2 (
$*!-
(
*3!#-
!
(
3!#
%$
To remove the reserve battery, perform the following steps: 1. Remove the back cover assembly. 2. Remove the keyboard assembly. 3. Remove the palmrest assembly. 4. Disconnect the reserve battery cable from connector JRBAT1 on the system board. 5. Remove the reserve battery from the bottom case bracket. a. Tear the reserve battery free from the foam pad. b. Remove the remnants of the foam pad from the system board assembly. NOTE: When you replace the reserve battery, first connect the reserve battery cable to the system board. Then position the reserve battery on the hard-disk drive bay so that there is minimal slack in the cable.
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42
Dell Latitude CPi A Service Manual
#
audio board removal, 31 audio shield removal, 30
'
ESD, 2 exhaust fan removal, 39
%
back cover assembly removal, 18 battery (in modular bay) removal, 30 bottom case assembly components, 28 illustrated, 29 bottom case bracket removal, 32
field-replaceable parts and assemblies illustrated, 12 list of, 5
(
hard-disk drive assembly removal, 13
CD-ROM drive removal, 30 I/R board removal, 40
) &
diskette drive removal, 30 display assembly bezel, removal, 23 removal, 21 top cover, removal, 28 keyboard assembly removal, 16
Index
1
*
LCD display hinge removal, 28 LCD panel removal, 24, 26
reserve battery removal, 41
screw identification and tightening, 3 sockets memory module, 15 speakers removal, 34 system board assembly removal, 35
+
main battery assembly removal, 2 memory module removal, 15 memory module cover removal, 14 modular bay devices removal, 30 module latch assemblies removal, 33 module latch assemblies removal, 33
tools, 2 touch-pad interface module removal, 20 travel module removal, 30
palmrest assembly removal, 19 power button removal, 21 preparing to work, 2
ZIF connectors, 4
2
Dell Latitude CPi A Service Manual