dell latitude cpx hcpx j series User Manual

							



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							____________________
Information in this document is subject to change without notice.
© 2000 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. 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.
February 2000     P/N 64PTN  Rev. A00 
						

							v


Recommended Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Preparing to Work Inside Your Computer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Before Working Inside Your Computer  . . . . . . . . . . . . . . . . . . . . . . . . 2
Screw Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Disconnecting Interface Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Removing a Cable from a ZIF Interface Connector  . . . . . . . . . . . . . . . 5
Replacing a Cable into a ZIF Interface Connector  . . . . . . . . . . . . . . . . 5
Field-Replaceable Parts and Assemblies   . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Removing and Replacing Field-Replaceable Parts and Assemblies  . . . . . . . 10
Hard-Disk Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Removing the Hard-Disk Drive Assembly  . . . . . . . . . . . . . . . . . . . . . 11
Replacing the Hard-Disk Drive Assembly  . . . . . . . . . . . . . . . . . . . . . 11
Modular Bay Devices (Diskette Drive, CD-ROM Drive, DVD-ROM Drive, 
CD-RW Drive, SuperDisk LS-120 Drive, Battery, or Travel Module)  . . . . 12
Memory Module Cover  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Removing the Memory Module Cover  . . . . . . . . . . . . . . . . . . . . . . . 12
Memory Modules  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Removing the Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Replacing the Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Keyboard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Removing the Keyboard Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Replacing the Keyboard Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Microprocessor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Removing the Microprocessor Module . . . . . . . . . . . . . . . . . . . . . . . 18
Replacing the Microprocessor Module  . . . . . . . . . . . . . . . . . . . . . . . 19
Display Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Removing the Display Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
14.1-Inch Display Assembly Bezel and LCD Panel  . . . . . . . . . . . . . . . . . 21
Removing the 14.1-Inch Display Assembly Bezel . . . . . . . . . . . . . . . 21
Removing the14.1-Inch LCD Panel  . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Removing the 14.1-Inch LCD Flex Cable . . . . . . . . . . . . . . . . . . . . . . 22
Replacing the 14.1-Inch LCD Flex Cable  . . . . . . . . . . . . . . . . . . . . . . 23
Replacing the 14.1-Inch LCD Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 24 
						

							vi
12.1-Inch Display Assembly Bezel and LCD Panel  . . . . . . . . . . . . . . . . . 25
Removing the 12.1-Inch Display Assembly Bezel . . . . . . . . . . . . . . . 25
Removing the 12.1-Inch LCD Panel Inverter   . . . . . . . . . . . . . . . . . . 26
Removing the 12.1-Inch LCD Flex Cable . . . . . . . . . . . . . . . . . . . . . . 26
Replacing the 12.1-Inch LCD Flex Cable  . . . . . . . . . . . . . . . . . . . . . . 26
Replacing the 12.1-Inch LCD Panel Inverter  . . . . . . . . . . . . . . . . . . . 27
Replacing the 12.1-Inch LCD Panel   . . . . . . . . . . . . . . . . . . . . . . . . . 28
Display Assembly Latch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Palmrest Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Removing the Palmrest Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Reserve Battery   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Removing the Reserve Battery  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Modem Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Removing the Modem Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Replacing the Modem Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
System Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Removing the System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Replacing the System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Thermal Cooling Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Module Latch Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37


	

Figure 1. Computer Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Main Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 3. Screw Identification  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 4. Disconnecting a Cable from an Interface Connector  . . . . . . . . 5
Figure 5. Exploded View—Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 6. Hard-Disk Drive Assembly Removal . . . . . . . . . . . . . . . . . . . . 11
Figure 7. Modular Bay Device Removal . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8. Memory Module Removal  . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 9. Removing the Keyboard Assembly Screws  . . . . . . . . . . . . . . 14
Figure 10. Keyboard Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 11. Keyboard and Track Stick Cables and Connectors  . . . . . . . . . 16
Figure 12. Microprocessor Module Removal . . . . . . . . . . . . . . . . . . . . . . 18
Figure 13. Display Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 14. 14.1-Inch Display Assembly Bezel  . . . . . . . . . . . . . . . . . . . . . 21
Figure 15. Display Assembly Bezel (bottom view) . . . . . . . . . . . . . . . . . . 23
Figure 16. 12.1-Inch Display Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 17. 12.1-Inch LCD Flex Cable  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 18. 12.1-Inch LCD Inverter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 19. Removing the Palmrest Assembly Screws . . . . . . . . . . . . . . . 30 
						

							vii
Figure 20. Palmrest Assembly Removal  . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 21. Modem Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 22. System Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 23. Thermal Cooling Assembly Removal. . . . . . . . . . . . . . . . . . . . 36
Figure 24. Module Latch Assemblies Removal  . . . . . . . . . . . . . . . . . . . . 37
Figure 25. Left Module Latch and Spring . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 1. Screw Placement Mat With Component Screw Counts 
and Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 2. Parts and Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 
						

							viii

	
	
A prerequisite for using this manual to service Dell computer systems is a basic 
knowledge of PCs and prior training in PC troubleshooting techniques. In addition 
to information provided in this manual, Dell provides the User’s 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, notices, and cautions, and 
they are used as follows:
NOTE: A NOTE indicates important information that helps you make better use 
of your computer.

	








	 
		 




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							support.dell.comDell Latitude CPt V/CPt S Series and CPx H/CPx J Series Ser vice Manual  1
	

	




















This manual provides instructions for removing and replacing field-replaceable 
components, assemblies, and subassemblies in your Dell Latitude portable 
computer. Unless other wise noted, each procedure in this manual assumes 
that a part can be replaced by performing the removal procedure in reverse 
order.
It is recommended that you use a book or something similar to support the 
display assembly when it is open nearly 180 degrees. 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 
other wise specified.

	



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right side
 left side back of computer
 front of computer 
						

							2 Dell Latitude CPt V/CPt S Series and CPx H/CPx J Series Ser vice Manual

	
The procedures in this manual require the following tools:

Number 1 magnetized Phillips-head screwdriver

Small flat-blade screwdriver

Small plastic scribe

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1. Save any work in progress and close all open application programs.
2. Turn off the computer and any attached peripherals.
NOTE: Make sure the computer is turned off and not in suspend-to-disk or 
hibernate mode. If you cannot shut down the computer using the com-
puter’s operating system, press and hold the power button for 4 seconds.
3. If the computer is docked in a C/Dock Family Expansion Station or C/Port 
Family Advanced Port Replicator (APR), undock the computer. 
4. Disconnect the computer and any attached peripherals from their electrical 
outlets to reduce the potential for personal injury or shock. Also disconnect 
any telephone or telecommunications lines from the computer.
5. Disconnect all other external cables from the computer.
6. Remove any installed PC Cards or plastic blanks from the PC Card slot.
7. Remove any installed devices in the modular device bay.