Dell Inspiron Lm Service Guide

							Removing and Replacing Parts 4-5
Keep holding the latch with one hand while pulling the device (diskette 
drive, secondary battery, or CD-ROM) straight out of the options bay with 
the other.
Figure 4-6.  Diskette Drive, Secondary Battery, or CD-ROM 
Removal
7. Remove any PC Cards   
To remove a PC Card from the top connector, press the top eject button 
(identified by an arrow pointing up). To remove a PC Card from the bottom 
connector, press the bottom eject button (identified by an arrow pointing 
down). If you are removing a type III card, press the bottom eject button.
Figure 4-7.  PC Card Removal  
						

							4-6 Dell Latitude LM Systems Service Manual
ZIF Connectors 
Some of the computer’s interface connectors are zero insertion force (ZIF) con-
nectors. These connectors are not removable; they must be released to 
disconnect a cable from them.  
To disconnect an interface cable from a ZIF connector, follow these steps: 
1. Insert a small flat-blade screwdriver under the movable part of the 
connector.
For most ZIFs, carefully pry up first one end of the movable part of the con-
nector and then the other end. Some ZIFs (keyboard connector on the main 
board) may need to be lifted in the center. 
.
Figure 4-8.  Releasing a ZIF Connector
2. Pull up gently 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, follow these steps: 
1. Use the 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. CAUTION:  ZIF connectors are fragile. To avoid breaking the connec-
tors, touch them carefully. Do not apply too much pressure to the
movable part of the connector when opening or closing it.  
						

							Removing and Replacing Parts 4-7
Exploded Views of Components and Assemblies 
.
Figure 4-9.  Exploded View—Computer 
LCD panel 
assembly
keyboard
bottom 
assembly
diskette drive,
secondary battery, 
or CD-ROM
hard-disk drive
main battery heat sinklatch (2)
power/ 
suspend 
indicator 
						

							4-8 Dell Latitude LM Systems Service Manual
Figure 4-10.  Exploded View—LCD Assembly    
front bezel
LCD panel
power/suspend indicator
inverter board
inverter board connectormicrophone
latch
back bezel 
LCD panel flex cable
stiffener
hinge (2) 
						

							Removing and Replacing Parts 4-9
.
Figure 4-11.  Exploded View—Top Assembly  
keyboard flex 
cable
keyboard
LCD flex- 
cable cover
power button keyboard screw 
cover (2)
hinge 
cover
touch pad 
button (2)
touch pad 
touch-pad 
button boardinfrared lens
infrared 
board
plastic housing (2) status-display 
panel boardpanel board 
cable speaker (2) touch pad 
bracket heat sink
top 
assembly
spring 
						

							4-10 Dell Latitude LM Systems Service Manual
.
Figure 4-12.  Exploded View—Bottom Assembly   
main boardpower board
audio board
cache boardI/O panel door
I/O bracket
bottom 
assembly
memory module 
cover processor board 
						

							Removing and Replacing Parts 4-11
Factory Repair Parts and Assemblies
This section contains a parts list and procedures for removing and replacing fac-
tory components and subassemblies. This information is provided for reference 
only. Dell does not recommend removal and replacement of these parts in the 
field.
Table 4-1 lists the factory repair parts and assemblies available for the com-
puter. Some parts may only be available as part of a kit or assembly. The 
subsections that follow provide instructions for removing and replacing these 
parts and assemblies. An asterisk (*) identifies those parts or assemblies that are 
replaceable by a customer.
     
.
Table 4-1.  Factory Repair Parts and Assemblies   
Part or Assembly Name Order Name
AC Adapter/Power Cables
AC Adapter, service kit*CUS,ADPT,AC,EXT,16.2V,34W,
LMP
AC Adapter
*ADPT,AC,EXT,16.2V,34W,LMP
Cable, power, U.S. CORD,PWR,110V,6F,AC ADPT,US
Cable, power, Australia CORD,PWR,220V,6F,AC ADPT,AUS
Batteries
Battery, main, 42-WH*BTRY,MAIN,42WHR,LIION,LMP
Battery, secondary
*BTRY,2ND,LIION,LMP
Board Assemblies
Board assembly, 100-MHz, service 
kitSVC,SYS,PLN,LMP100SD
Main board  SYS,PLN,3.3V STN LCD,LMP
Processor board, 100-MHz   CRD,PRCR,LMP100
Card, cache CRD,L2,CACHE,LMP
Heat sink, microprocessor, 
subassemblySUBASSY,HTSNK,CPU,LMP
Board, power supply CRD,CONV,DC-DC,LMP
Insulator, main board INSUL,MYLAR,PWA,LMP
* Customer-replaceable unit (CRU) 
						

							4-12 Dell Latitude LM Systems Service Manual
Board Assemblies (Continued)
Board assembly, 133-MHz, service 
kitSVC,SYS,PLN,LMP133ST
Main board  SYS,PLN,3.3V TFT LCD,LMP
Processor board, 133-MHz   CRD,PRCR,LMP133
Card, cache CRD,L2,CACHE,LMP
Heat sink, microprocessor, 
subassemblySUBASSY,HTSNK,CPU,LMP
Board, power supply CRD,CONV,DC-DC,LMP
Insulator, main board INSUL,MYLAR,PWA,LMP
Boards and Cards
Board, status display panel CRD,CNTRL,SPKR,LMP
Board, infrared CRD,IR,LMP
Board, audio CRD,AUDIO,LMP
Cable, audio board CBL,FLEX,JK,AUD,LMP
CD-ROM
CD-ROM, service kit*CUS,CD ROM,4X,LMP,SANYO
CD-ROM drive CD ROM,4X,LMP,SANYO
Diskette Drive Assembly
Diskette drive assembly*CUST,FD,INT/EXT,LMP
Diskette drive, internal/external FD,INT/EXT,LMP
Case, upper PLSTC,UPR,FD,LMP
Case, lower  PLSTC,LWR,FD,LMP
Cable, service kit
*CUST,CBL,FD,INT/EXT,LMP
Connector, cable CBL,FD,INT/EXT,LMP
* Customer-replaceable unit (CRU)
Table 4-1.  Factory Repair Parts and Assemblies (Continued)  
Part or Assembly Name Order Name 
						

							Removing and Replacing Parts 4-13
Hard-Disk Drive Assemblies
Hard-disk drive, 540-MB, service 
kit*CUS,HD,540MB,I,F2,12.5MM,NBK
Hard-disk drive, subassembly, 
540-MBSUBASSY,HD,540MB,LF2,
12.5MM,NBK
Hard-disk drive, 540-MB HD,540MB,I,F2,12.5MM,NBK
Bracket, hard-disk drive BRKT,HD,12.5MM,LMP
Screws, bracket SCR,3X.5X3,FLH,PNH,MS,ZPS,HD
Hard-disk drive, 810-MB, service 
kit*CUS,HD,810MB,12.5MM,NN,#1,
NBK
Hard-disk drive, 810-MB SUBASSY,HD,810MB,12.5MM,NN,
NBK
Hard-disk drive, 810-MB HD,810MB,I,F2,12.5MM,NN,#1,
NBK
Bracket, hard-disk drive BRKT,HD,12.5MM,LMP
Screws, bracket SCR,3X.5X3,FLH,PNH,MS,ZPS,HD
Hard-disk drive, 1.4-GB, service kit
*CUS,HD,1.4GB,12.5MM,NN,#1,
NBK
Hard-disk drive, 1.4-GB SUBASSY,HD,1.4GB,12.5MM,NN,
NBK
Hard-disk drive, 1.4-GB HD,1.4GB,I,F2,12.5MM,NN,#1,
NBK
Bracket, hard-disk drive BRKT,HD,12.5MM,NBK
Screws, bracket SCR,3X.5X3,FLH,PNH,MS,ZPS,HD
Keyboards
Keyboard, U.S. KYBD,87,LMP,US,SMK
Keyboard, Latin/Spanish KYBD,88,LMP,LTN/SPN,SMK
Keyboard, Japan KYBD,89,LMP,JPN,SMK
* Customer-replaceable unit (CRU)
Table 4-1.  Factory Repair Parts and Assemblies (Continued)  
Part or Assembly Name Order Name 
						

							4-14 Dell Latitude LM Systems Service Manual
LCD Assembly
LCD panel, active-matrix color 
display (TFT), 12.1”LCD,TFT,SVGA,12.1”,LMP,IBM
Board, TFT inverter CRD,INVRTR,TFT,LMP
Cable, TFT flex  CBL,LCD,FLEX,TFT,IBM,LMP
Bezel, TFT front BZL,LCD,LMP,IBM
Bezel, TFT back CVR,LCD,LMP,IBM
LCD panel, dual-scan color display 
(STN), 11.3”LCD,STN,SVGA,11.3”,LMP,
SANYO
Board, STN inverter CRD,INVRTR,STN,LMP
Cable, STN flex CBL,LCD,FLEX,STN,SANYO,LMP
Bezel, STN front BZL,LCD,LMP,SANYO
Bezel, STN back CVR,LCD,LMP,SANYO
Latch, LCD, right LTCH,PLSTC,RT,LCD,LMP
Latch, LCD, left LTCH,PLSTC,LF,LCD,LMP
Memory
Memory module, 8-MB, service kit*CUS,MEM,8M,LMP
Memory module, two 4-MB SIMM,4MB,LXP
Memory module, 16-MB, service 
kit
*
CUS,MEM,16M,LMP
Memory module, two 8-MB DIMM,8MB,2X32,TL,LXP
Memory module, 32-MB, service 
kit
*
CUS,MEM,32M,LMP
Memory module, two 16-MB DIMM,16MB,LXP
Miscellaneous Parts
Cover, front, hard-disk drive BZL,HDD,LMP
Cover, hinge/infrared lens, right CVR,PLSTC,IR,LMP
Cover, hinge, left CVR,HNG,LF,LMP
Cover, keyboard screws CVR,SCR,KYBD,LMP
* Customer-replaceable unit (CRU)
Table 4-1.  Factory Repair Parts and Assemblies (Continued)  
Part or Assembly Name Order Name