Dell Inspiron 2500 Parts Manual

							Removing and Replacing Parts113
Removing the Palm Rest Assembly 
 NOTICE: Disconnect the computer and attached devices from electrical 
outlets and remove any installed battery.
 NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or 
by periodically touching an unpainted metal surface on the computer.
1
Follow the instructions in Preparing to Work Inside the Computer.”
2Remove the hard drive and the fixed optical drive.
3Remove the keyboard assembly.
4Remove the hinge cover.
5Remove the display.
 NOTICE: To avoid damaging the palm rest assembly, you must first remove 
the display assembly.
6
Turn the computer over.
7Remove the nine 20-mm screws (labeled with a “circle P”) that secure 
the palm rest assembly to the computer. 
pull loop 
						

							114Removing and Replacing Parts
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8Turn the computer over.
9Use the pull loop to disconnect the palm rest flex cable from the 
touch-pad connector on the system board.
10Carefully lift out the palm rest assembly.
20-mm screw (9) 
						

							Removing and Replacing Parts115
LED Board
 NOTICE: Disconnect the computer and attached devices from electrical 
outlets and remove any installed battery.
 NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or 
by periodically touching an unpainted metal surface on the computer.
Removing the LED Board
1Follow the instructions in Preparing to Work Inside the Computer.”
2Remove the hinge cover.
3Remove the two 4-mm screws.
4Lift the LED board out of connector.
4-mm screws (2) 
						

							116Removing and Replacing Parts
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 Replacing the LED Board
1Align the two screw holes with the two mounting holes on the bottom 
case assembly, and press the board into its connector.
2Replace the two 4-mm screws.
System Board Assembly
 NOTICE: Disconnect the computer and attached devices from electrical 
outlets and remove any installed battery.
 NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or 
by periodically touching an unpainted metal surface on the computer.
4-mm captive-
washer screws (3)
system board assembly
bottom case assembly 
						

							Removing and Replacing Parts117
The system board’s BIOS contains the system service tag number, which is 
also visible on a bar-code label on the bottom of the computer. The 
replacement kit for the system board assembly includes a floppy disk or CD 
that provides a utility for transferring the service tag number to the 
replacement system board assembly.
 NOTICE: After replacing the microprocessor module, update the BIOS using 
a flash BIOS update program floppy disk or CD that came with the 
replacement microprocessor.
Removing the System Board
1Follow the instructions in Preparing to Work Inside the Computer.”
2Remove the hard drive and fixed optical drive.
3Remove any installed Mini PCI cards.
4If migrating the memory, remove all installed memory modules.
5Remove the keyboard assembly.
6Remove the hinge cover.
7Remove the display assembly.
8Remove the palm rest assembly.
9Remove the video memory cache card, if present.
10Remove the microprocessor thermal cooling assembly.
11If migrating the microprocessor, remove the microprocessor module.
12Remove the three 4-mm captive-washer screws from the system board.
13Remove the 20-mm screw from the center of the LED board.
14If migrating the LED board, remove it.
15Lift the front of the system board and work it out of the back panel. 
						

							118Removing and Replacing Parts
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							Removing and Replacing Parts119
Battery and Media Bay Latch 
Assemblies
 NOTICE: Disconnect the computer and attached devices from electrical 
outlets and remove any installed battery.
 NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or 
by periodically touching an unpainted metal surface on the computer.
spring
 latch buttons (2)
bottom case assembly location of 
snap tabs (2)
bumps 
wear ribs 
(2 on underside)
slider  
						

							120Removing and Replacing Parts
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Removing and Replacing the Battery and Media Bay Latch 
Assemblies
1Follow the instructions in Preparing to Work Inside the Computer.”
2Remove the keyboard assembly.
3Remove the hinge cover.
4Remove the display assembly.
5Remove the palm rest assembly.
6Remove a latch button from the bottom case assembly by squeezing 
the snap tabs in the center of the latch.
Apply downward pressure to the tabs while squeezing them together 
(tweezers work well) to eject the latch button from the bottom of the 
case without loosening the upper latch assembly (spring and slider). If 
the upper latch assembly does come loose:
aReinsert the spring onto the slider, and reinstall both pieces in the 
latch housing on the inside of the case.
bEnsure that the slider is inserted so that the side with the two 
bumps is facing the back of the case, and the surface with the wear 
ribs is facing the bottom of the case.
7Hold the upper latch assembly in place while you snap the new latch 
button in from underneath the base, making certain the snap tabs are 
fully engaged in the slider.
8Ensure that the newly installed latch assembly moves smoothly and 
freely when pushed and released. 
						

							Removing and Replacing Parts121
Fa n  A s s e m b l y
 NOTICE: Disconnect the computer and attached devices from electrical 
outlets and remove any installed battery.
 NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or 
by periodically touching an unpainted metal surface on the computer.
Removing the Fan Assembly
1Follow the instructions in Preparing to Work Inside the Computer.”
2Remove the system board.
3Remove the three 4-mm screws from the fan assembly.
4Disconnect the two fan cables from the system board.
5Pull the fan assembly away from the back-panel bracket.
 NOTICE: When reconnecting the fan cables, connect the shorter cable to the 
connector closest to the fan assembly. Route both cables so that they will not be 
pinched by the thermal cooling assembly.
RJ-11/RJ-45 Board
 NOTICE: Disconnect the computer and attached devices from electrical 
outlets and remove any installed battery.
4-mm screws (3)fan cables 
						

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 NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or 
by periodically touching an unpainted metal surface on the computer.
Removing the Protective Covers From the RJ-11 and RJ-45 
Connectors
1Follow the instructions in Preparing to Work Inside the Computer.”
2Remove one or both of the plastic connector covers (one or both of the 
covers may be installed) by slipping a nonmarring tool into the cutout 
at the top and pivoting the tool up to disengage the inner securing tab.
To replace a connector cover, orient the cover notch-side-up and snap it into 
the connector cutout.
connector covers (2)