dell latitude cpt v series cpx h series User Manual

							






	

	
	

	
	 
						

							






	

	
	

	
	 
						

							____________________
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. 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.
September 1999     P/N 5169T  Rev. A00 
						

							v


Recommended Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Preparing to Work Inside Your Computer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Screw Identification and Tightening  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ZIF Connectors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Field-Replaceable Parts and Assemblies   . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Removing Field-Replaceable Parts and Assemblies  . . . . . . . . . . . . . . . . . . . 12
Hard-Disk Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Modular Bay Devices (Diskette Drive, CD-ROM Drive, DVD-ROM 
Drive, SuperDisk LS-120 Drive, Battery, or Travel Module)         . . . . . . . 13
Memory Module Cover  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Memory Modules  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Keyboard Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Microprocessor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacing the Microprocessor Module  . . . . . . . . . . . . . . . . . . . . . . . 20
Display Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Display Assembly Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
14.1-Inch Display LCD Panel    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Removing the 14.1-Inch LCD Flex Cable . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.1-Inch Display LCD Panel  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Reserve Battery   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Module Latch Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
System Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Thermal Cooling Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 
						

							vi


	

Figure 1. Computer Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Main Battery Assembly Removal  . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 3. Screw Identification  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 4. Disconnecting an Interface Cable . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 5. Exploded View—Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 6. Hard-Disk Drive Assembly Removal . . . . . . . . . . . . . . . . . . . . 13
Figure 7. Modular Bay Device Removal . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 8. Memory Module Removal  . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 9. Removing the Keyboard Assembly Screws  . . . . . . . . . . . . . . 16
Figure 10. Keyboard Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 11. Keyboard and Track Stick Cables  . . . . . . . . . . . . . . . . . . . . . . 18
Figure 12. Microprocessor Module Removal . . . . . . . . . . . . . . . . . . . . . . 19
Figure 13. Display Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 14. 14.1-Inch Display Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 15. 12.1-Inch Display Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 16. 12.1-Inch LCD Flex Cable  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 17. 12.1-Inch LCD Inverter  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 18. Removing the Palmrest Assembly Screws . . . . . . . . . . . . . . . 30
Figure 19. Palmrest Assembly Removal  . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 20. Module Latch Assemblies Removal . . . . . . . . . . . . . . . . . . . . 32
Figure 21. Left Module Latch and Spring . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 22. System Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 23. Thermal Cooling Assembly Removal  . . . . . . . . . . . . . . . . . . . 36

Table 1. Screw Placement Mat With Component Screw Counts 
and Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 2. Parts and Assemblies
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6 
						

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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-Series/CPx H-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 
the following conditions:

The computer and any attached peripherals are turned off, and the 
peripherals are disconnected from the 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 other wise 
specified.

	


right side
 left side back of computer
 front of computer 
						

							2 Dell Latitude CPt V-Series/CPx H-Series Service Manual

	
Most of the procedures in this manual require the use of one or more of the 
following tools:

Number 1 magnetized Phillips-head screwdriver

Small flat-blade screwdriver

Small plastic scribe

Processor extractor
	
Before you start to work on the computer, perform the following steps.

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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 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 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. Remove the power cable.
6. Disconnect all other external cables from the computer.
7. Remove any installed PC Cards.

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