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Dell Latitude 100L Service Manual
Dell™ Latitude™ 100L Service Manual
Memory, CD or DVD Drive, Modem, and Mini PCI Card
Microprocessor Thermal-Cooling Assembly
Pinout Assignments for I/O Connectors
Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.
Abbreviations and Acronyms
For a complete list of abbreviations and acronyms, see the Tell Me How help file.
If you purchased a Dell™ n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable.
Information in this document is subject to change without notice.
© 2004 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell, the DELL logo, TrueMobile, and Latitude are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft 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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
Model PP08L
March 2004 Rev. A00 file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/index.htm[2/4/2013 3:00:54 PM]
Before You Begin: Dell Latitude 100L Service Manual
Before You Begin
Dell™ Latitude™ 100L Service Manual
Before Working Inside Your Computer
This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:
You have performed the steps in "
Turning Off Your Computer " and "
Before Working Inside Your Computer
."
You have read the safety information in your Dell™ System Information Guide.
A component can be replaced by performing the removal procedure in reverse order.
Recommended Tools
The procedures in this document may require the following tools:
Small flat-blade screwdriver
Phillips screwdriver
Small plastic scribe
Hex nut driver
Flash BIOS update program floppy disk or CD
Turning Off Your Computer
NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your computer.
1. Shut down the operating system: a. Save and close any open files, exit any open programs, click the Start button, and then click Turn Off
Computer. b. In the Turn off computer window, click Turn off.
The computer turns off after the operating system shutdown process finishes.
2. Ensure that the computer and any attached devices are turned off. If your computer and attached devices do not automatically turn off when you shut down your operating system, press and hold the power button for 4 seconds. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/begin.htm[2/4/2013 3:00:58 PM]
Before You Begin: Dell Latitude 100L Service Manual
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
System Information Guide.
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card.
Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.
NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
NOTICE: When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself. Some cables have a connector with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.
NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.
1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.
2.
3. If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
4. Disconnect any telephone or telecommunication lines from the computer.
5. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
6.
Remove any installed PC Cards from the PC Card slot .
7. Close the display and turn the computer upside down on a flat work surface.
NOTICE: To avoid damaging the system board, you must remove the main battery before you service the computer.
8. Slide and hold the battery-bay latch release on the bottom of the computer, and then remove the battery from the bay. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/begin.htm[2/4/2013 3:00:58 PM]
Before You Begin: Dell Latitude 100L Service Manual
1
2 battery battery-bay latch release
7Y032
9. Remove any installed modules, including a second battery, if installed.
10. Remove the
Computer Orientation
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Before You Begin: Dell Latitude 100L Service Manual
3
4
1
2 front right back left
Screw Identification
When you are removing and replacing components, photocopy "
" as a tool to lay out and keep track of the screws. The placemat provides the number of screws and their sizes.
Hard Drive Door:
(2 each)
Modem to
System Board:
(2 each)
Optical Drive:
(1 each)
Keyboard to Computer Base:
(4 each)
EMI Shield:
(1 each)
Display Assembly to Back Panel:
(2 each)
Hinge Bracket to Computer Base:
(4 each)
Display Bezel:
(5 each)
Display Panel:
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Before You Begin: Dell Latitude 100L Service Manual
Display Latch:
(2 each)
Screw Covers (2 each)
Display Bumpers (3 each)
Top of Palm Rest to
Computer Base:
(2 each)
Palm Rest to
Base Plastics:
(12 each)
Palm Rest to
Battery Bay:
(1 each)
Battery Bay Shield to System Board:
(2 each)
System Board to
Base Plastics:
(2 each, hard drive cage)
(2 each, optical drive cage)
(2 each, chipset heat sink)
Left Antenna to Hard Drive and
Optical Drive Cages
(2 each)
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System Components: Dell Latitude 100L Service Manual
System Components
Dell™ Latitude™ 100L Service Manual
CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
NOTICE: Unless otherwise noted, each procedure in this document assumes that a part can be replaced by performing the removal procedure in reverse order.
1 display
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System Components: Dell Latitude 100L Service Manual
2 display flex cable
3 hinge cover
4 keyboard
5 palm rest
6 microprocessor thermalcooling assembly
7 EMI shield
8 battery bay shield
9 microprocessor
Y4006
5X932
F3534
1X475
9U777
11 base plastics
12 battery
J3285
13 CD or DVD drive
14 left antenna
15 hard drive
16 system board
17 modem
18 Mini PCI card
F3542
C1682
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Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
Memory, CD or DVD Drive, Modem, and Mini PCI Card
Dell™ Latitude™ 100L Service Manual
Memory
Removing the Memory Modules
CAUTION: Before working inside your Dell™ computer, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
NOTE: Memory modules purchased from Dell are covered under your computer warranty.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Turn the computer over, loosen the captive screw (labeled "M") in the memory module cover, and lift the cover away from the computer.
1 captive screw
2 memory module cover T1955
3. Use your fingertips to carefully spread apart the securing clips on each end of the memory module connector until the module pops up. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/upgrades.htm[2/4/2013 3:01:00 PM]
Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
4. Remove the module from the connector.
1 memory module
2 securing clips
Installing the Memory Modules
NOTE: If the memory module is not installed properly, the computer may not boot properly. No error message indicates this failure.
1. Align the notch in the module edge connector with the tab in the connector slot.
2. Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it clicks into place. If you do not feel the click, remove the module and reinstall it.
3. Replace the cover and tighten the captive screw.
NOTICE: If the memory module cover is difficult to close, remove the module and reinstall it. Forcing the cover to close may damage your computer.
4. Insert the battery into the battery bay, or connect the AC adapter to your computer and an electrical outlet. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/upgrades.htm[2/4/2013 3:01:00 PM]
Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
5. Turn on the computer.
As the computer boots, it detects the additional memory and automatically updates the system configuration information.
To confirm the amount of memory installed in the computer, click the Start button, click Help and Support, and then click
Computer Information.
CD or DVD Drive
Removing the CD or DVD Drive
CAUTION: Before working inside your Dell™ computer, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Turn the computer over, and remove the M2.5 x 8-mm screw (labeled "O") next to the memory module cover.
3. Loosen the captive screw (labeled "M") in the memory module cover, and lift the cover away from the computer.
1 captive screw
2 memory module cover T1955
4. Press the lever next to the memory module connectors in the direction of the arrow on the lever (towards the drive) to release the drive. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/upgrades.htm[2/4/2013 3:01:00 PM]
Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
1 lever
2 CD or DVD drive
3 M2.5 x 8-mm screw labeled "O"
5. Pull the drive out of the bay.
3R690
Installing the CD or DVD Drive
1. Slide the new drive into the bay until the drive is fully seated.
2. Replace the memory module cover and tighten the captive screw.
3. Replace the M2.5 x 8-mm screw next to the memory module cover.
Modem
Removing the Modem
CAUTION: Before working inside your Dell™ computer, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Turn the computer over, loosen the captive screw (labeled "C") in the modem/Mini PCI card cover, and lift the cover away from the computer. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/upgrades.htm[2/4/2013 3:01:00 PM]
Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
1 captive screw
2 modem/Mini PCI card cover 1X045
3. Remove the two M2 x 3-mm screws securing the modem to the system board, and set them aside.
4. Pull straight up on the attached pull-tab to lift the modem out of its connector on the system board and disconnect the modem cable.
1 modem cable connector
2 pull-tab
3 modem cable
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Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
Installing the Modem
1. Connect the modem cable to the modem.
NOTICE: The cable connectors are keyed for correct insertion; do not force the connections.
2. Align the modem with the screw holes, and press the modem into the connector on the system board.
3. Install the two M2 x 3-mm screws to secure the modem to the system board.
4. Replace the cover and tighten the captive screw.
Mini PCI Card
Removing the Mini PCI Card
CAUTION: Before working inside your Dell™ computer, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Turn the computer over, loosen the captive screw (labeled "C") in the modem/Mini PCI card cover, and lift the cover away from the computer.
1 captive screw
2 modem/Mini PCI card cover 1X045 file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/upgrades.htm[2/4/2013 3:01:00 PM]
Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
3. Disconnect the Mini PCI card from the attached cables.
1 antenna cables
2 metal securing tabs (2)
3 Mini PCI card connector
4 Mini PCI card
4. Use your fingertips to carefully spread apart the securing taps on each end of the Mini PCI card connector until the card pops up.
5. Lift the Mini PCI card out of its connector.
Installing the Mini PCI Card
NOTICE: To avoid damaging the Mini PCI card, never place cables on top of or under the card.
NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.
1. Align the Mini PCI card with the connector at a 45-degree angle, and press the Mini PCI card into the connector until it clicks. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/upgrades.htm[2/4/2013 3:01:00 PM]
Memory, CD or DVD Drive, Modem, and Mini PCI Card: Dell Latitude 100L Service Manual
1 antenna cables
2 Mini PCI card connector
3 Mini PCI card
2. Connect the antenna cables to the Mini PCI card.
NOTE: To prevent damage to the antenna cables, carefully fold the cables under the Mini PCI card before replacing the cover.
3. Replace the cover and tighten the captive screw.
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Hard Drive: Dell Latitude 100L Service Manual
Hard Drive
Dell™ Latitude™ 100L Service Manual
Removing the Hard Drive
CAUTION: If you remove the hard drive from the computer when the drive is hot, do not touch the metal housing of the hard drive.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your
System Information Guide.
NOTICE: To prevent data loss, shut down your computer before removing the hard drive. Do not remove the hard drive while the computer is on, in standby mode, or in hibernate mode.
NOTICE: Hard drives are extremely fragile; even a slight bump can damage the drive.
NOTE: Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Turn the computer over, and remove the two M2.5 x 5-mm hard drive screws.
1 M2.5 x 5-mm screws (2)
2 hard drive
63PDH
NOTICE: When the hard drive is not in the computer, store it in protective antistatic packaging. See "Protecting
Against Electrostatic Discharge" in your System Information Guide.
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Hard Drive: Dell Latitude 100L Service Manual
3. Slide the hard drive out of the computer.
Installing the Hard Drive
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your
System Information Guide.
1. Remove the new drive from its packaging.
Save the original packaging for storing or shipping the hard drive.
NOTICE: Use firm and even pressure to slide the drive into place. If you use excessive force, you may damage the connector.
2. Insert the drive into the bay, and push the hard drive until it is fully seated in the bay.
3. Replace and tighten the two M2.5 x 5-mm screws.
4. Use the Operating System CD to install the operating system for your computer.
5. Use the Drivers and Utilities CD to install the drivers and utilities for your computer.
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Keyboard: Dell Latitude 100L Service Manual
Keyboard
Dell™ Latitude™ 100L Service Manual
Removing the Keyboard
CAUTION: Before working inside your Dell™ computer, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Use a small flat-blade screwdriver or plastic scribe to lift the notched right edge of the hinge cover, and pry the cover loose from the hinges and computer base.
1 hinge cover
2 notched edge
Y4006
3. Lift the hinge cover up and away from the hinges and computer base.
4. Remove the four M2 x 3-mm keyboard screws. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/keyboard.htm[2/4/2013 3:01:02 PM]
Keyboard: Dell Latitude 100L Service Manual
1 M2 x 3-mm screws (4)
2 keyboard
3 keyboard connector
4 interface connector
4270E
5X932
NOTICE: The keycaps on the keyboard are fragile, easily dislodged, and time-consuming to replace. Be careful when removing and handling the keyboard.
5. Lift the top of the keyboard out of the computer base, and pull the keyboard out at an angle (towards the display).
6. Grasp the keyboard flex cable near the connector, and pull up on the flex cable to disconnect it from the interface connector on the system board.
7. Remove the keyboard from the computer base.
Installing the Keyboard
NOTICE: To avoid damage to the connector pins, press the keyboard connector evenly into the interface connector on the system board, and do not reverse the keyboard connector.
1. Connect the keyboard connector of the replacement keyboard to the interface connector on the system board. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/keyboard.htm[2/4/2013 3:01:02 PM]
Keyboard: Dell Latitude 100L Service Manual
1 M2 x 3-mm screws (4)
2 keyboard
3 keyboard connector
4 interface connector
4270E
5X932
2. Insert the four securing tabs on the keyboard into their respective slots in the palm rest, and lower the keyboard into the computer base.
Ensure that all four securing tabs are engaged before trying to completely seat the keyboard.
3. Replace the four M2 x 3-mm keyboard screws.
4. To replace the hinge cover, first insert the left side of the hinge cover into the notches. Snap down the hinge cover, and ensure that it is flush with the palm rest.
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EMI Shield: Dell Latitude 100L Service Manual
EMI Shield
Dell™ Latitude™ 100L Service Manual
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the one M2.5 x 8-mm screw (labeled "M2.5x8") that secures the EMI shield to the system board, and pull the
EMI shield out of the computer base.
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Display: Dell Latitude 100L Service Manual
Display
Dell™ Latitude™ 100L Service Manual
Display Assembly
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
5. Remove the
6. Close the display.
7. From the back of the computer, remove the two M2.5 x 5-mm screws.
8. Open the display assembly approximately 180 degrees, and support the display assembly so that it does not open past this position.
9. Pull straight up on the pull-tab that is attached to the display-feed flex cable to disconnect the cable from the system board.
10. Remove the two M2.5 x 5-mm screws from each hinge bracket. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/display.htm[2/4/2013 3:01:03 PM]
Display: Dell Latitude 100L Service Manual
1 pull-tab
2 display assembly
3 M2.5 x 5-mm screws (4)
4 hinge brackets (2)
5 computer base
63PDH
11. Lift the display assembly up and out of the computer base. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/display.htm[2/4/2013 3:01:03 PM]
Display: Dell Latitude 100L Service Manual
1 screw covers (2) display bumpers (3)
2 M2.5 x 5-mm screws (5)
3 display bezel
4 display panel
5 M2 x 3-mm screws (8)
6 top cover
7 display flex cable
5W601
9U288
63PDH
4270E
Display Bezel
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
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Display: Dell Latitude 100L Service Manual
3. Remove the
4. Use a plastic scribe to pry the two screw covers and three display bumpers out of the screw holes located on the front of the bezel.
5. Remove the five M2.5 x 5-mm screws located on the front of the bezel.
NOTICE: Carefully separate the bezel from the top cover to avoid damage to the bezel.
6. Starting at the bottom of the display panel, use your fingers to separate the bezel from the top cover and lift the inside edge of the bezel away from the top cover.
Display Panel
Removing the Display Panel
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
5. Remove the two M2 x 3-mm screws on the each side of the display panel.
6. Lift the display panel out of the top cover.
7. Press in both sides of the top flex-cable connector, and pull the top flex-cable connector away from the display connector. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/display.htm[2/4/2013 3:01:03 PM]
Display: Dell Latitude 100L Service Manual
1 pull-tab on bottom flex-cable connector
2 top flex-cable connector
3 display connector
4 inverter connector
5 display cable
8. Use the pull-tab to disconnect the bottom flex-cable connector from the inverter connector.
Installing the Display Panel
1. Connect the top flex-cable connector to the display panel connector.
2. Connect the bottom flex-cable connector to the inverter connector.
3. Lay the display panel in the top cover.
4. Route the display-feed flex cable so that it rests in the notch located in the bottom edge of the top cover.
5. Replace the four M2 x 3-mm screws that secure the display panel to the top cover.
. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/display.htm[2/4/2013 3:01:03 PM]
Display: Dell Latitude 100L Service Manual
Display Latch Assembly
Removing the Display Latch Assembly
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
5. Remove the two M2.5 x 5-mm screws that secure the display latch assembly to the top cover.
6. Lift the display latch assembly up and out of the top cover.
1 spring hook (top cover)
2 spring
3 spring hook (display latch)
4 display latch assembly
5 M2.5 x 5-mm screws (2)
6 top cover
63PDH
Installing the Display Latch Assembly
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Display: Dell Latitude 100L Service Manual
1. Attach one end of the spring to the spring hook on the left edge of the display latch, and attach the other end of the spring to the spring hook in the top cover.
2. Align the screw holes in the display latch assembly with the screw holes in the top cover.
3. Replace the two M2.5 x 5-mm screws that secure the display latch assembly to the top cover.
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Palm Rest: Dell Latitude 100L Service Manual
Palm Rest
Dell™ Latitude™ 100L Service Manual
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
5. Remove the
6. Remove the
7. Turn the computer over and remove the twelve M2.5 x 8-mm screws (not labeled).
8. Remove the M2.5 x 4-mm screw from the battery bay.
9. Turn the computer back over and remove the two M2.5 x 5-mm screws from the top of the palm rest. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/palmrest.htm[2/4/2013 3:01:04 PM]
Palm Rest: Dell Latitude 100L Service Manual
10. Disconnect the touch pad connector from the system board.
NOTICE: Carefully separate the palm rest from the base plastics to avoid damage to the palm rest.
11. Starting at the back center of the palm rest, use your fingers to separate the palm rest from the base plastics by lifting the inside edge of the palm rest.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/palmrest.htm[2/4/2013 3:01:04 PM]
Microprocessor Thermal-Cooling Assembly: Dell Latitude 100L Service Manual
Microprocessor Thermal-Cooling Assembly
Dell™ Latitude™ 100L Service Manual
Removing the Microprocessor Thermal-Cooling Assembly
Installing the Microprocessor Thermal-Cooling Assembly
Removing the Microprocessor Thermal-Cooling Assembly
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Disconnect the fan power cable from the system board.
5. Loosen in consecutive order the four captive screws, labeled "1" through "4," that secure the microprocessor thermalcooling assembly to the system board. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/thermal.htm[2/4/2013 3:01:05 PM]
Microprocessor Thermal-Cooling Assembly: Dell Latitude 100L Service Manual
1 captive screws (4)
2 fan power-cable connector
6. Pull up the microprocessor thermal-cooling assembly by the pull-tab to lift the assembly out of the system board.
Installing the Microprocessor Thermal-Cooling Assembly
NOTICE: Before you install the replacement microprocessor thermal-cooling assembly, remove the mylar that covers the thermal grease on the assembly.
1. If you are installing a replacement microprocessor thermal-cooling assembly, remove the mylar that covers the thermal grease on the assembly. If you are installing the assembly that you removed in the previous section: a. Wipe the thermal grease off of the microprocessor thermal-cooling assembly with a clean paper towel. b. Squeeze all of the contents of the thermal grease packet (provided with the kit) on to the microprocessor thermal-cooling assembly.
2. Place the back of the microprocessor thermal-cooling assembly under the palm rest, and lower the assembly onto the system board.
3. Connect the fan power cable to the system board.
4. Tighten the four captive screws, labeled "1" through "4," in consecutive order.
.
.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/thermal.htm[2/4/2013 3:01:05 PM]
Microprocessor Module: Dell Latitude 100L Service Manual
Microprocessor Module
Dell™ Latitude™ 100L Service Manual
Removing the Microprocessor Module
Installing the Microprocessor Module
Removing the Microprocessor Module
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
NOTICE: Press and hold the microprocessor down by applying slight pressure to the center of the microprocessor while turning the cam screw to prevent intermittent contact between the cam screw and microprocessor.
NOTICE: To avoid damage to the microprocessor, hold the screwdriver so that it is perpendicular to the microprocessor when turning the cam screw.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
microprocessor thermal-cooling assembly .
NOTICE: When removing the microprocessor module, pull the module straight up. Be careful not to bend the pins on the microprocessor module.
5. To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIF-socket cam screw counterclockwise until it comes to the cam stop.
The ZIF-socket cam screw secures the microprocessor to the system board. Take note of the arrow on the ZIF-socket cam screw.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/cpu.htm[2/4/2013 3:01:06 PM]
Microprocessor Module: Dell Latitude 100L Service Manual
1 ZIF-socket cam screw
2 ZIF socket
3 microprocessor module
4 pin-1 corner of microprocessor
5 triangle on system board
6. Use a microprocessor extraction tool to remove the microprocessor module.
Installing the Microprocessor Module
NOTICE: Ensure that the cam lock is in the fully open position before seating the microprocessor module. Seating the microprocessor module properly in the ZIF socket does not require force.
NOTICE: A microprocessor module that is not properly seated can result in an intermittent connection or permanent damage to the microprocessor and ZIF socket.
1. Align the pin-1 corner of the microprocessor module so that it points to the triangle on the system board, and insert the microprocessor module into the ZIF socket.
When the microprocessor module is correctly seated, all four corners are aligned at the same height. If one or more corners of the module are higher than the others, the module is not seated correctly.
NOTICE: Hold the microprocessor down while turning the cam screw to prevent intermittent contact between the cam screw and microprocessor.
2. Tighten the ZIF socket by turning the cam screw clockwise to secure the microprocessor module to the system board.
3. Wipe the thermal grease off of the microprocessor thermal-cooling assembly with a clean paper towel.
4. Squeeze all of the contents of the thermal grease packet (provided with the kit) on to the microprocessor thermalcooling assembly.
5. Replace the microprocessor thermal-cooling assembly
.
. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/cpu.htm[2/4/2013 3:01:06 PM]
Microprocessor Module: Dell Latitude 100L Service Manual
.
8.
Update the BIOS using a flash BIOS update program CD.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/cpu.htm[2/4/2013 3:01:06 PM]
Speakers: Dell Latitude 100L Service Manual
Speakers
Dell™ Latitude™ 100L Service Manual
Removing the Speakers
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
The speakers are located on the left and right corners of the front of the base plastics. Take note of the speaker cable routing so that you can replace the cables properly under or between their routing clips.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
5. Remove the
6. Remove the
7. Remove the
8. Disconnect the speaker connector from the system board.
1 left speaker
2 routing clips (3)
3 speaker connector file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/speakers.htm[2/4/2013 3:01:06 PM]
Speakers: Dell Latitude 100L Service Manual
4 right speaker
NOTICE: Remove the speaker cables from their routing clips with care to avoid damaging the cables.
9. Remove the speaker cables from under or between their routing clips.
NOTICE: Handle the speakers with care to avoid damaging them.
10. Remove the speakers by pulling them straight up and out of the base plastics.
Installing the Speakers
1. Slide the speakers down into the base plastics.
NOTICE: Ensure that the speaker cables are under or between their routing clips.
NOTE: Speakers face out in the base plastics holders.
NOTE: The right speaker cable is longer than the left speaker cable.
2. Route the speaker cables under or between their routing clips.
3. Connect the speaker connector to the system board.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/speakers.htm[2/4/2013 3:01:06 PM]
System Board: Dell Latitude 100L Service Manual
System Board
Dell™ Latitude™ 100L Service Manual
Removing the System Board
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
The system board's BIOS chip contains the Service Tag sequence, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the system board includes a CD that provides a utility for transferring the Service Tag sequence to the replacement system board.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
5. Remove the
6. Remove the
7. Remove the
8. Remove the
9. Remove the
10. Remove the
11. Remove the
microprocessor thermal-cooling assembly .
12. Remove the
13. Remove the
14. Remove the two M2.5 x 5-mm screws from the battery bay shield, and remove the shield. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/sysboard.htm[2/4/2013 3:01:07 PM]
System Board: Dell Latitude 100L Service Manual
1 battery bay
2 battery bay shield
3 M2.5 x 5-mm screws (2) 63PDH
15. Remove the two M2.5 x 5-mm system board screws from the hard drive cage.
16. Remove the two M2.5 x 5-mm system board screws from the optical drive cage.
17. Remove the two M2.5 x 5-mm system board screws from the chipset heat sink. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/sysboard.htm[2/4/2013 3:01:07 PM]
System Board: Dell Latitude 100L Service Manual
1 M2.5 x 5-mm screws (2)
2 chipset heat sink
3 M2.5 x 5-mm screws (2)
4 optical drive cage
5 M2.5 x 5-mm screws (2)
6 hard drive cage
63PDH
63PDH
63PDH
18. Remove the two M2.5 x 6-mm screws that secure the left antenna to the hard drive and optical drive cages. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/sysboard.htm[2/4/2013 3:01:07 PM]
System Board: Dell Latitude 100L Service Manual
1 optical drive cage
2 M2.5 x 6-mm screws (2)
3 left antenna
4 hard drive cage
7270E
19. Remove the two hex nuts that secure the video connector to the base plastics.
20. Lift the front of the system board out and away from the base plastics. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/sysboard.htm[2/4/2013 3:01:07 PM]
System Board: Dell Latitude 100L Service Manual
Installing the System Board
1. Insert the video connector on the replacement system board through the back of the base plastics.
2. Replace the two hex nuts that secure the video connector to the base plastics.
3. Replace the two M2.5 x 6-mm screws that secure the left antenna, which is located between the hard drive and optical drive cages, to the system board.
4. Replace the two M2.5 x 5-mm screws that secure the optical drive cage to the system board.
5. Replace the two M2.5 x 5-mm screws that secure the hard drive cage to the system board.
6. Replace the two M2.5 x 5-mm screws that secure the chipset heat sink to the system board.
7. Replace the battery bay shield, and reinstall the two M2.5 x 5-mm screws that secure the shield to the system board.
9. Replace the microprocessor .
NOTICE: Before you replace the microprocessor thermal-cooling assembly, wipe the thermal grease off of the assembly with a clean paper towel. Squeeze all of the contents of the thermal grease packet (provided with the kit) on to the microprocessor thermal-cooling assembly.
10. Replace the microprocessor thermal-cooling assembly
.
12. Replace the display assembly
.
.
.
15. Replace the Mini PCI card ,
that you removed from the old system board.
16. Replace the CD or DVD drive
.
.
18. Insert the battery into the battery bay.
19. Connect the AC adapter to the computer and to an electrical outlet.
NOTICE: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer.
NOTE: After replacing the system board, enter the computer Service Tag sequence into the BIOS of the replacement system board.
20. Turn on the computer.
21. Insert the CD that accompanied the replacement system board into the appropriate drive, and turn on the computer.
Follow the instructions on the screen.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/sysboard.htm[2/4/2013 3:01:07 PM]
Flashing the BIOS: Dell Latitude 100L Service Manual
Flashing the BIOS
Dell™ Latitude™ 100L Service Manual
Flashing the BIOS From a Floppy Disk or a CD
Flashing the BIOS From the Hard Drive
If a BIOS update program floppy disk or CD is provided with the new system board, see "Flashing the BIOS From a Floppy
Disk or a CD." If you do not have a BIOS update program floppy disk or CD, see "Flashing the BIOS From the Hard Drive."
Flashing the BIOS From a Floppy Disk or a CD
1. Ensure that the AC adapter is plugged in and that the main battery is installed properly.
NOTE: If you use a BIOS update program CD to flash the BIOS, set up the computer to boot from a CD before inserting the CD.
2. Insert the BIOS update program floppy disk or CD, and turn on the computer.
Follow the instructions that appear on the screen. The computer continues to boot and updates the new BIOS. When the flash update is complete, the computer will automatically reboot.
3. Press <F2> during POST to enter the system setup program.
4. Press <Alt> and <F> to reset the computer defaults.
5. Press <Esc>, select Save changes and reboot, and press <Enter> to save configuration changes.
6. Remove the flash BIOS update program floppy disk or CD from the drive and restart the computer.
Flashing the BIOS From the Hard Drive
1. Ensure that the AC adapter is plugged in, the main battery is properly installed, and a network cable is attached.
2. Boot up the computer.
3. Locate the latest BIOS update file for your computer at support.dell.com.
4. Click Download Now to download the file.
5. If the Export Compliance Disclaimer window appears, click Yes, I Accept this Agreement.
The File Download window appears
6. Click Save this program to disk and then click OK.
The Save In window appears.
7. Click the down arrow to view the Save In menu, select Desktop, and then click Save. file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/bios.htm[2/4/2013 3:01:08 PM]
Flashing the BIOS: Dell Latitude 100L Service Manual
The file downloads to your desktop.
8. Click Close if the Download Complete window appears.
The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.
9. Double-click the file icon on the desktop and follow the instructions on the screen.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/bios.htm[2/4/2013 3:01:08 PM]
Base Plastics: Dell Latitude 100L Service Manual
Base Plastics
Dell™ Latitude™ 100L Service Manual
CAUTION: Before performing the following procedures, read the safety instructions in your System
Information Guide.
CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface.
1. Follow the instructions in "
Before Working Inside Your Computer
."
2. Remove the
3. Remove the
4. Remove the
5. Remove the
6. Remove the
7. Remove the
8. Remove the
9. Remove the
10. Remove the
11. Remove the
microprocessor thermal-cooling assembly .
12. Remove the
13. Remove the
14. Remove the
.
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/base.htm[2/4/2013 3:01:08 PM]
Pinout Assignments for I/O Connectors: Dell Latitude 100L Service Manual
Pinout Assignments for I/O Connectors
Dell™ Latitude™ 100L Service Manual
USB Connector
2
3
Pin
1
4
Signal
USB5V+
USBP–
USBP+
GND
Video Connector
6
7
4
5
8
2
3
Pin
1
Signal
CRT_R
CRT_G
CRT_B
NC
GND
GND
GND
GND
12
13
14
15
Pin
9
10
11
Signal
5V+
GND
MONITOR_DETECT–
DDC_DATA
CRT_HS
CRT_VS
DDC_CLK file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/pinouts.htm[2/4/2013 3:01:09 PM]
Pinout Assignments for I/O Connectors: Dell Latitude 100L Service Manual
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/pinouts.htm[2/4/2013 3:01:09 PM]
Mini Recommended Spares List: Dell Latitude 100L Service Manual
Mini Recommended Spares List
Dell™ Latitude™ 100L Service Manual
NOTE: The part numbers listed below are subject to change.
Bottom Base Parts
T1955
1X045
9U753
J3285
J3997
F3610
7Y032
9U777
CD
0X456
DVD
7W488
Floppy Drive
P3008
Hard Drive and Accessories
1E321
D0743
3E155
C2180
N1166
F2232
R1079
5W557
63PDH
8267R
Keyboard
5X932
Y4006 memory door modem/Mini PCI door rubber feet (5) bottom base plastic cover
14.1-inch display latch kit
15-inch display latch kit plastic battery latch kit
EMI shield
24X CD
8X DVD floppy drive, external
20-G HDD, 4200 RPM
20-G HDD, 5400 RPM
30-G HDD, 4200 RPM
40-G HDD, 4200 RPM
40-G HDD, 5400 RPM
60-G HDD, 4200 RPM
60-G HDD, 5400 RPM primary HDD carrier
HDD security screws (2) interposer board and connector
English, US-international, single pointing hinge cover file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/minirsl.htm[2/4/2013 3:01:09 PM]
Mini Recommended Spares List: Dell Latitude 100L Service Manual
LCD Display Assembly
N0623
N0924
J3997
F3610
3U721
F3528
H3272
M3343
P3547
J3280
9U288
XGA panel service kit, 14.1-inch
XGA panel service kit, 15-inch
14.1-inch display latch kit
15-inch display latch kit display bezel, 14.1-inch display bezel, 15-inch top cover, 14.1-inch top cover, 15-inch
14.1-inch flex cable (for 14.1-inch XGA panels only)
15-inch flex cable (for 15-inch XGA panels only) rubber display bumpers (3)
Memory
3Y180
3Y182
0K963
Modem
C1682
Processors
H3556
N4114
P1976
K4234
Speakers
9U767
128-MB DIMM (266)
256-MB DIMM (266)
512-MB DIMM (266) modem daughter card (MDC)
2.66 GHz, Intel® Pentium® 4
2.80 GHz, Intel Pentium 4
2.40 GHz, Intel Celeron®
2.60 GHz, Intel Celeron speakers
Microprocessor Thermal-Cooling Assembly
1X475 microprocessor thermal-cooling assembly kit (with fan)
System Board
F3542
Wireless
C2962
F2993 system board assembly
Kit, Modem, Wireless, GPRS, AWS, United
States
Kit, Modem, Wireless, GPRS, Vodafone,
United Kingdom file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/minirsl.htm[2/4/2013 3:01:09 PM]
Mini Recommended Spares List: Dell Latitude 100L Service Manual
H2667
H2668
J0846
K2552
X2973
Kit, Modem, Wireless, GPRS, Vodafone,
Sweden
Kit, Modem, Wireless, GPRS, O2 Micro,
United Kingdom
Card (circuit), Wireless, Mini PCI Card,
Broadcom, 2.4 GHz
Kit, Modem, Wireless, GPRS, Vodafone,
Ireland
Kit, Modem, Wireless, GPRS,
TrueMobile™, United States
file:///C|/Work%20Area%20-%20A/E%20DOC%20Posting/latc100l/en/Service%20Manual/minirsl.htm[2/4/2013 3:01:09 PM]
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