Dell Inspiron 4000 Service Manual page 41

HINT: After replacing the system board assembly, be sure to enter the system's service tag number into the BIOS of the replacement system board
assembly.
7. Insert the floppy disk or CD that accompanied the replacement system board assembly into the appropriate drive, and turn on the computer. Follow the
instructions on the display screen.
Module Latch Assemblies
Removing the Module Latch Assemblies
NOTICE: Disconnect the computer and any attached devices from electrical outlets, and remove any installed batteries.
NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.
NOTICE: Read "Preparing to Work Inside the
1. Remove the hard drive assembly.
2. Turn the computer over and remove the
3. Remove the display assembly.
4. Remove the palm rest assembly.
5. Remove the left module latch button from the bottom case assembly by squeezing the snap tabs.
Apply pressure to the module latch and spring while unsnapping the snap tabs to prevent the module latch assembly from coming loose from the case. If
the module latch assembly does come loose from the case:
a. Reinsert the spring onto the slider on the module latch, and reinstall the module latch into the holding features on the inside of the case.
HINT: The latch will not function properly if the slider is oriented incorrectly.
b. Ensure that the slider is inserted in its respective hole, that the side of the latch with the two bumps is facing the back of the case, and that the
surface with the wear ribs is facing the bottom of the case.
6. Snap in the new latch button from the bottom of the base, making certain its snap tabs are fully engaged in the module latch.
7. Ensure that the newly installed latch moves smoothly and freely when pushed and released.
8. Repeat steps 5 through 7 for the latch on the right side.
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Computer" before performing the following procedure.
keyboard assembly.