Dell 800 Service manual

Dell Latitude D800 Service Manual
Dell™ Latitude™ D800 Service Manual
Before You Begin
System Components
Memory Module, Mini PCI Card, Modem, and Modules
Hard Drive
Bluetooth™ Card
Fan
Docking Doors
Keyboard
Display Assembly
Video Card
Microprocessor Thermal-Cooling Assembly
Palm Rest
Microprocessor Module
Flashing the BIOS
Reserve Battery
System Board
Speakers
Base Latch
Pin 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.
Information in this document is subject to change without notice.
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Before You Begin: Dell Latitude D800 Service Manual
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Before You Begin
Dell™ Latitude™ D800 Service Manual
Preparing to Work Inside the Computer
Recommended Tools
Computer Orientation
Screw Identification
Preparing to Work Inside the Computer
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. Read and follow applicable
instructions in safety instructions in the System Information Guide that
came with the computer.
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.
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 microprocessor by
its edges, not by its pins.
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 scratching the
computer cover.
2. Save any work in progress and exit all open programs.
3. Turn off the computer and all attached devices.
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Before You Begin: Dell Latitude D800 Service Manual
NOTE: Ensure that the computer is off and not in a power management mode.
If you cannot shut down the computer using the computer operating system,
press and hold the power button for 4 seconds.
4. If the computer is connected to a docking station, undock it.
5. Disconnect the computer from the electrical outlet.
6. To avoid possible damage to the system board, wait 10 to 20 seconds and then
disconnect any attached devices.
7. Disconnect all other external cables from the computer.
8. Remove any installed PC Cards from the PC Card slot.
9. 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.
10. Slide and hold the battery-bay latch release on the bottom of the computer, and
then remove the battery from the bay.
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Before You Begin: Dell Latitude D800 Service Manual
11. Remove any installed memory modules, Mini PCI cards, and modules, including
a second battery if one is installed.
12. Remove the hard drive.
Recommended Tools
The procedures in this manual require the following tools:
●
#1 Phillips screwdriver
●
¼-inch flat-blade screwdriver
●
Small plastic scribe
●
Flash BIOS update program floppy disk or CD
Computer Orientation
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Before You Begin: Dell Latitude D800 Service Manual
1
back
2
right
3
front
4
left
Screw Identification
When you are removing and replacing components, photocopy "Screw Identification"
as a tool to lay out and keep track of the screws. The placemat provides the number
of screws and their sizes.
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Before You Begin: Dell Latitude D800 Service Manual
Optional Module:
Modem:
Hard Drive:
(1 each)
(1 each)
(1 each)
Fan:
Keyboard:
Display Assembly:
(2 each)
(2 each)
(2 each)
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Before You Begin: Dell Latitude D800 Service Manual
Display Bezel:
Display Panel:
Display Latch:
(display bumpers, 8 each)
(9 each)
(2 each)
Video Card
Palm Rest:
Speakers:
(4 each)
(2 each)
(1 each)
(8 each)
(13 each)
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Before You Begin: Dell Latitude D800 Service Manual
System Board:
(3 each)
(2 each)
(1 each)
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Before You Begin: Dell Latitude D800 Service Manual
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System Components: Dell Latitude D800 Service Manual
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System Components
Dell™ Latitude™ D800 Service Manual
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: Unless otherwise noted, each procedure in this document assumes
that a part can be replaced by performing the removal procedure in reverse
order.
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System Components: Dell Latitude D800 Service Manual
1 display assembly
10 battery
2 display cable
11 release latch
3 center control cover
12 hard drive
4 keyboard
13 fan
5 palm rest
14 speakers
6 system board
assembly
15 microprocessor
7 optical drive
16 thermal cooling assembly
8 reserve battery
17 system board support
9 computer base
18 video card
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
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Memory Module, Mini PCI Card,
Modem, and Modules
Dell™ Latitude™ D800 Service Manual
Memory Module
Mini PCI Card
Modem
Modules
Memory Module
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 "Preparing to Work Inside the Computer."
2. Turn the computer over, loosen the captive screw from the memory module
cover, and lift the cover.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
1 captive screw
2 memory module cover
NOTICE: To prevent damage to the memory module connector, do not use
tools to spread the inner metal tabs that secure the memory module.
3. If you are replacing a memory module, remove the existing module.
NOTICE: Handle memory modules by their edges, and do not touch the
components on a module.
a. Use your fingertips to carefully spread apart the securing clips on each end
of the memory module connector until the module pops up.
b. Remove the module from the connector.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
1 securing clips (2 per
connector)
2 memory module
NOTICE: If you need to install memory modules in two connectors, install a
memory module in the connector labeled "DIMMA (Slot 1)" before you install a
module in the connector labeled "DIMMB."
4. Ground yourself and install the new memory module:
a. Align the notch in the module with the slot in the center of the connector.
b. Slide the edge of the module firmly into the connector, and rotate the
module down until you feel a click. If you do not feel the click, remove the
module and reinstall it.
NOTE: If the memory module is not installed properly, the computer does not
boot. The Num Lock and Scroll Lock lights blink about ten times.
5. Replace the cover and screw.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
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.
6. Insert the battery into the battery bay, or connect the AC adapter to your
computer and an electrical outlet.
7. Turn on the computer.
As the computer boots, it detects the additional memory and automatically updates
the system configuration information.
Mini PCI Card
If you ordered a Mini PCI card at the same time that you ordered your computer, Dell
has already installed the card for you.
CAUTION: Before working inside your 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.
NOTICE: Handle components and cards by their edges, and avoid touching pins
and contacts.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Turn the computer over, and loosen the captive screw on the Mini PCI
card/modem cover.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
1 captive screw
2 Mini PCI card/modem
cover
3. If a Mini PCI card is not already installed, go to step 4. If you are replacing a
Mini PCI card, remove the existing card:
a. Disconnect the Mini PCI card from any attached cables.
b. Release the Mini PCI card by spreading the metal securing tabs until the
card pops up slightly.
c. Lift the Mini PCI card out of its connector.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
1 Mini PCI card connector
2 Mini PCI card
3 antenna cables (2)
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.
4. Align the Mini PCI card with the connector at a 45-degree angle, and press the
Mini PCI card firmly into the connector, and press down until you feel a click.
5. Connect the antenna cables to the Mini PCI.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
1
Mini PCI card
2
antenna cables (2)
6. Replace the cover and tighten the screw.
Modem
CAUTION: Before working inside your 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.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
NOTICE: Handle components and cards by their edges, and avoid touching pins
and contacts.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Turn the computer over, and loosen the captive screw from the Mini PCI
card/modem cover.
1 captive screw
2 Mini PCI card/modem
cover
3. If a modem is not already installed, go to step 4. If you are replacing a modem,
remove the existing modem:
a. Remove the screws securing the modem to the system board, and set it
aside.
b. 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.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
1 modem cable
2 modem
3 pull-tab
4 screw
5 system board connector
NOTICE: The cable connectors are keyed for correct insertion; do not force the
connections.
4. Connect the modem cable to the modem.
NOTICE: To prevent damage to the modem, press the modem into the
connector directly over the connector.
5. Align the modem with the screw hole, and press the modem into the connector
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
directly over the connector on the system board.
Modules
Your computer ships with an optical drive installed in the module bay. However, the
device screw is not installed in the optical drive but packaged separately. When you
install your device in the module bay, you can install the device screw.
NOTE: You do not need to install the device screw unless you want to secure
the module inside the computer for security purposes.
If the Device Screw Is Not Installed
NOTICE: To prevent damage to devices, place them in a safe, dry place when
they are not installed in the computer. Avoid pressing down on them or placing
heavy objects on top of them.
1. Press the device latch release so that the latch release pops out.
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1
device latch release
2. Pull the device by the latch release to remove the device from the module bay.
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If the Device Screw Is Installed
1. 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 prevent damage to devices, place them in a safe, dry place when
they are not installed in the computer. Avoid pressing down on them or placing
heavy objects on top of them.
2. Close the display and turn the computer over.
3. Use a #1 Phillips screwdriver to remove the M2 x 3-mm screw from the bottom
of the computer.
1
device latch release
4. Press the device latch release so that the latch release pops out.
5. Pull the device by the latch release to remove the device from the module bay.
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Memory Module, Mini PCI Card, Modem, and Modules: Dell Latitude D800 Service Manual
NOTICE: Insert devices into the module bay before you dock and turn on the
computer.
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Hard Drive: Dell Latitude D800 Service Manual
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Hard Drive
Dell™ Latitude™ D800 Service Manual
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 working inside your computer, read 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 "Preparing to Work Inside the Computer."
2. Turn the computer over. Use a standard #1 Phillips screwdriver to remove the
M3 x 3-mm screw.
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Hard Drive: Dell Latitude D800 Service Manual
1
M3 x 3-mm screw
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."
3. Slide the hard drive out of the computer.
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Bluetooth™ Card: Dell Latitude D800 Service Manual
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Bluetooth™ Card
Dell™ Latitude™ D800 Service Manual
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
If you ordered a Bluetooth card with your computer, the card is already installed.
1. Remove the hard drive.
2. Pull the Bluetooth card connector out of the system board connector.
3. Pull the cable to remove the Bluetooth card from the computer.
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Bluetooth™ Card: Dell Latitude D800 Service Manual
1 Bluetooth card
2 system board connector
3 Bluetooth card
connector
4 cable
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Fan: Dell Latitude D800 Service Manual
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Fan
Dell™ Latitude™ D800 Service Manual
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the two M2.5 x 12 screws from the fan cover.
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Fan: Dell Latitude D800 Service Manual
1 M2.5 x 12-mm screws
(2)
2 fan cover
3. Lift the fan out of the computer.
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Docking Doors: Dell Latitude D800 Service Manual
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Docking Doors
Dell™ Latitude™ D800 Service Manual
Removing the Docking Doors
CAUTION: Before working inside your computer, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Gently bend the docking covers and lift them away from the computer base.
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Docking Doors: Dell Latitude D800 Service Manual
Installing the Docking Doors
Slide the side of the docking covers with the spring over the longer posts.
1 docking doors with
spring
2 longer post
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Keyboard: Dell Latitude D800 Service Manual
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Keyboard
Dell™ Latitude™ D800 Service Manual
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Turn the computer right-side up and open it.
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Keyboard: Dell Latitude D800 Service Manual
1
display
2
center control cover
3
computer base
3. Remove the center control cover:
a. Open the display all the way (180 degrees) so that it lies flat against your
work surface.
b. Starting on the left side of the computer, use a plastic scribe or flat-blade
screw driver to pry up the center control cover.
c. Disconnect the center-control-cover flex cable from the system board
connector using the pull-tab.
d. Lift the centrol control cover away from the computer, and lay it aside.
1 center control cover
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Keyboard: Dell Latitude D800 Service Manual
2 system board connector
4. Remove the keyboard:
a. Remove the two M2.5 x 6-mm screws across the top of the keyboard.
NOTICE: The keycaps on the keyboard are fragile, easily dislodged, and timeconsuming to replace. Be careful when removing and handling the keyboard.
b. Rotate the keyboard up and slide it forward.
c. Hold the keyboard up and slightly forward to allow access to the keyboard
connector.
d. Pull up on the keyboard connector tab to disconnect the keyboard
connector from the system board.
1 M2.5 x 6-mm screws (2)
2 keyboard
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Keyboard: Dell Latitude D800 Service Manual
3 palm rest
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Display Assembly: Dell Latitude D800 Service Manual
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Display Assembly
Dell™ Latitude™ D800 Service Manual
Display Assembly
Display Bezel
Display Panel
Display Assembly
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
NOTICE: You must remove the display assembly before you remove the palm
rest.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Turn the computer over and remove the two M2.5 x 12-mm screws labeled "D"
on the bottom of the computer.
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Display Assembly: Dell Latitude D800 Service Manual
3. Turn over the computer and open the display.
4. Remove the central control cover.
5. Disconnect the display cable using the pull-tab, and release the cable from the
four cable-routing clips.
6. Lift the display out of the computer.
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Display Assembly: Dell Latitude D800 Service Manual
1 display
2 display cable connector
3 computer base
4 pull-tab
5 connector
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Display Assembly: Dell Latitude D800 Service Manual
1 display bumpers (8)
4 display panel
2 M2.5 x 6-mm screws (8)
5 top cover
3 display bezel
6 M2 x 3-mm screws (9)
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Display Assembly: Dell Latitude D800 Service Manual
Display Bezel
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the central control cover.
3. Remove the display assembly.
4. Use a plastic scribe to pry the eight display bumpers out of the screw holes
located on the front of the bezel.
5. Remove the eight M2.5 x 6-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 (by the Dell™ logo), use your fingers
to separate the bezel from the top cover by lifting the inside edge of the bezel
away from the top cover.
Display Panel
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by touching an unpainted metal surface on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
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Display Assembly: Dell Latitude D800 Service Manual
2. Remove the central control cover.
3. Remove the display assembly.
4. Remove the display bezel.
5. Remove the nine M2 x 3-mm screws from the display panel.
6. Lift the display panel, and rotate the display panel out of the top cover.
7. Remove the yellow tape from the top display connector.
8. Press in the tabs on both sides of the top display-cable connector, and pull the
display cable connector away from the top flex-cable connector.
1 top flex-cable connector
2 top display-cable
connector
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Display Assembly: Dell Latitude D800 Service Manual
3 tabs
9. Use the pull-tab to disconnect the bottom flex-cable connector from the inverter
connector.
1 top flex-cable connector
2 top display-cable
connector
3 pull-tab on bottom flexcable connector
10. Remove the yellow tape from above the bottom flex-cable connector.
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Display Assembly: Dell Latitude D800 Service Manual
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Video Card: Dell Latitude D800 Service Manual
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Video Card
Dell™ Latitude™ D800 Service Manual
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the keyboard.
3. Remove the display.
4. Remove the four M2.5 x 6-mm screws from the video card.
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Video Card: Dell Latitude D800 Service Manual
1 M2.5 x 6-mm screws (4)
2 video card
5. Lift the video card out of the computer.
Back to Contents Page
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Microprocessor Thermal-Cooling Assembly: Dell Latitude D800 Service Manual
Back to Contents Page
Microprocessor Thermal-Cooling
Assembly
Dell™ Latitude™ D800 Service Manual
Removing the Microprocessor Thermal-Cooling
Assembly
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
NOTICE: Disconnect the computer and any attached devices from electrical
outlets, and remove any installed batteries.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the keyboard.
3. Remove the fan.
NOTE: You can remove the microprocessor thermal-cooling assembly with the
fan attached.
4. Loosen in consecutive order the four captive screws, labeled "1" through "4,"
that secure the microprocessor thermal-cooling assembly to the system board.
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Microprocessor Thermal-Cooling Assembly: Dell Latitude D800 Service Manual
1 captive screws (4)
2 microprocessor thermalcooling assembly
5. Rotate the microprocessor thermal-cooling assembly up toward the side of the
computer and away from the system board.
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Microprocessor Thermal-Cooling Assembly: Dell Latitude D800 Service Manual
Installing the Microprocessor Thermal-Cooling
Assembly
1. Place the left side of the microprocessor thermal-cooling assembly under the
palm rest and rotate the assembly onto the system board.
2. Tighten the four captive screws, labeled "1" through "4," in consecutive order.
Back to Contents Page
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Palm Rest: Dell Latitude D800 Service Manual
Back to Contents Page
Palm Rest
Dell™ Latitude™ D800 Service Manual
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the keyboard.
NOTICE: You must remove the display assembly before you remove the palm
rest; the display hinges pass through the back of the palm rest.
3. Remove the display assembly.
4. Remove the mircoprocesser thermal-cooling assembly.
5. Remove the video card.
6. Remove the 13 M2.5 x 12-mm screws from the bottom of the computer.
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Palm Rest: Dell Latitude D800 Service Manual
1 M2.5 x 12-mm screws
(13)
7. Remove the two M2.5 x 4-mm screws from the top of the palm rest.
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Palm Rest: Dell Latitude D800 Service Manual
1 M2.5 x 4-mm screws (2)
2 top of the palm rest
8. Disconnect the touch pad connector from the system board.
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Palm Rest: Dell Latitude D800 Service Manual
1 back center of the palm
rest
2 touch pad connector
3 system board connector
4 computer base
NOTICE: Carefully separate the palm rest from the computer base to avoid
damage to the palm rest.
9. Use your fingers to separate the palm rest from the computer base.
Back to Contents Page
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Microprocessor Module: Dell Latitude D800 Service Manual
Back to Contents Page
Microprocessor Module
Dell™ Latitude™ D800 Service Manual
Removing the Microprocessor Module
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
NOTICE: Do not touch the processor die. Press and hold the microprocessor
down on the substrate on which the die is mounted 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 "Preparing to Work Inside the Computer."
2. Remove the keyboard.
3. Remove the fan.
NOTICE: To ensure maximum cooling for the microprocessor, do not touch the
heat transfer areas on the microprocessor thermal-cooling assembly. The oils in
your skin reduce the heat transfer capability of the thermal pads.
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.
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Microprocessor Module: Dell Latitude D800 Service Manual
5. To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIFsocket cam screw counterclockwise until it comes to the cam stop.
1 screwdriver
(perpendicular to
microprocessor)
2 ZIF-socket cam screw
3 ZIF socket
4 pin-1 corner
NOTE: The ZIF-socket cam screw secures the microprocessor to the system
board. Take note of the arrow on the ZIF-socket cam screw, which indicates the
direction to turn the cam screw.
6. Lift out the microprocessor module.
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Microprocessor Module: Dell Latitude D800 Service Manual
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 with the pin-1 corner of the
ZIF socket, and insert the microprocessor module.
NOTE: The pin-1 corner of the microprocessor module has a triangle that aligns
with the triangle on the pin-1 corner of the ZIF socket.
NOTICE: You must position the microprocessor module correctly in the ZIF
socket to avoid permanent damage to the module and the 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.
2. Tighten the ZIF socket by turning the cam screw clockwise to secure the
microprocessor module to the system board.
3. Perform the steps in "Removing the Microprocessor Module" in reverse order,
beginning with step 4.
4. Update the BIOS using a flash BIOS update program floppy disk or CD. For
instructions on how to flash the BIOS, see "Flashing the BIOS."
Back to Contents Page
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Flashing the BIOS: Dell Latitude D800 Service Manual
Back to Contents Page
Flashing the BIOS
Dell™ Latitude™ D800 Service Manual
1. Ensure that the AC adapter is plugged in and that the main battery is installed
properly.
2. Insert the flash 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 update is complete, the computer will
automatically reboot.
3. Press
during POST to enter the system setup program.
4. Press
and
to reset the computer defaults.
5. Press
, select Save changes and reboot, and press
configuration changes.
to save
6. Remove the flash BIOS update program floppy disk or CD from the drive and
restart the computer.
Back to Contents Page
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Reserve Battery: Dell Latitude D800 Service Manual
Back to Contents Page
Reserve Battery
Dell™ Latitude™ D800 Service Manual
CAUTION: Before working inside your Dell™ computer, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the battery.
3. Depress the battery latch and rotate it out to remove the reserve battery cover.
1 reserve battery cover
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Reserve Battery: Dell Latitude D800 Service Manual
4. Pull the reserve battery straight out of the computer base.
5. Disconnect the reserve battery cable connector from the speaker connector.
1
speaker connector
2
reserve battery
Back to Contents Page
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System Board: Dell Latitude D800 Service Manual
Back to Contents Page
System Board
Dell™ Latitude™ D800 Service Manual
Removing the System Board
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
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.
NOTICE: Disconnect the computer and any attached devices from electrical
outlets, and remove any installed batteries.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the keyboard.
3. Remove the display assembly.
4. Remove the palm rest.
5. Remove the video card.
6. Remove the microprocessor thermal-cooling assembly.
7. Remove the microprocessor.
8. Remove the two M2.5 x 6-mm screws from the system board support.
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System Board: Dell Latitude D800 Service Manual
1 M2.5 x 6-mm screws (2)
2 system board support
9. Disconnect the speaker cable.
10. Remove the three M2.5 x 4-mm screws.
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System Board: Dell Latitude D800 Service Manual
1 M2.5 x 4-mm screws (3)
2 system board
11. Remove the M2.5 x 12-mm screw labeled "circle B" from the computer base.
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System Board: Dell Latitude D800 Service Manual
1 M2.5 x 12-mm screw
(1)
12. Remove the system board from the computer base.
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System Board: Dell Latitude D800 Service Manual
1
system board
2
speaker connector
3
speakers
Installing the System Board
1. Perform all of the steps in "Removing the System Board" in reverse order.
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.
2. Turn on the computer.
NOTE: After replacing the system board, enter the computer Service Tag
sequence into the BIOS of the replacement system board.
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System Board: Dell Latitude D800 Service Manual
3. Insert the floppy disk or CD that accompanied the replacement system board
into the appropriate drive. Follow the instructions that appear on the screen.
Back to Contents Page
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Speakers: Dell Latitude D800 Service Manual
Back to Contents Page
Speakers
Dell™ Latitude™ D800 Service Manual
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the keyboard.
3. Remove the display assembly.
4. Remove the palm rest.
5. Remove the system board.
NOTICE: Handle the speakers with care to avoid damaging them.
6. Remove the M2.5 x 3-mm screw from the speakers.
7. Remove the reserve battery from the speakers, and lift out the speakers.
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Speakers: Dell Latitude D800 Service Manual
1 speakers
2 M2.5 x 3-mm screw (1)
3 reserve battery
4 computer base
Back to Contents Page
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Base Latch: Dell Latitude D800 Service Manual
Back to Contents Page
Base Latch
Dell™ Latitude™ D800 Service Manual
CAUTION: Before performing the following procedures, read the safety
instructions in your System Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as
the back panel) on the computer.
1. Follow the instructions in "Preparing to Work Inside the Computer."
2. Remove the hard drive.
3. Remove the keyboard.
4. Remove the display assembly.
5. Remove the palm rest.
6. Remove the system board.
7. Remove the speakers.
8. Pull the base latch out and away from the computer base.
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Base Latch: Dell Latitude D800 Service Manual
1
base latch
2
computer base
Back to Contents Page
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Pin Assignments for I/O Connectors: Dell Latitude D800 Service Manual
Back to Contents Page
Pin Assignments for I/O Connectors
Dell™ Latitude™ D800 Service Manual
USB Connector
Video Connector
Parallel Connector
S-Video TV-Out Connector
Serial Connector
Dell D/Bay Connector
USB Connector
Pin
Signal
1
USB5V+
2
USBP–
3
USBP+
4
GND
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Pin Assignments for I/O Connectors: Dell Latitude D800 Service Manual
Video Connector
Pin
Signal
Pin
Signal
1
CRT_R
9
5V+
2
CRT_G
10
GND
3
CRT_B
11
MONITOR_DETECT–
4
NC
12
DDC_DATA
5
GND
13
CRT_HS
6
GND
14
CRT_VS
7
GND
15
DDC_CLK
8
GND
Parallel Connector
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Pin Assignments for I/O Connectors: Dell Latitude D800 Service Manual
Pin
Signal
Pin
Signal
1
STROBE–
10
ACK–
2
PD0
11
BUSY
3
PD1
12
PE
4
PD2
13
SLCT
5
PD3
14
AFD/3M–
6
PD4
15
ERROR–
7
PD5
16
INIT–
8
PD6
17
SLIN–
9
PD7
18-25
GND
S-Video TV-Out Connector
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Pin Assignments for I/O Connectors: Dell Latitude D800 Service Manual
S-Video
Pin
Signal
1
GND
2
GND
3
DLUMA-L
4
DCRMA-L
Composite Video
Pin
Signal
5
SP_DIF
6
DCMPS-L
7
SP_DIF
Serial Connector
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Pin Assignments for I/O Connectors: Dell Latitude D800 Service Manual
Pin
Signal
Pin
Signal
1
DCD
6
DSR
2
RXDA
7
RTS
3
TXDA
8
CTS
4
DTR
9
RI
5
GND
Dell D/Bay Connector
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Pin Assignments for I/O Connectors: Dell Latitude D800 Service Manual
Pin
Signal
Pin
Signal
1
USB_VCC
8
SMB_CLK
2
USB_D-
9
GND
3
USB_D+
10
SHIELD GND
4
USB_GND
11
SHIELD GND
5
PWR_SRC
6
SMB_DAT
13
SHIELD GND
7
MODPRES#
14
SHIELD GND
12
SHIELD GND
Back to Contents Page
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