Dell Inspiron 4000 - Manual (Page 39)

1. Remove the hard drive assembly .
2. Remove the keyboard assembly .
3. Turn the computer over and remove the display assembly .
4. Remove the palm rest assembly .
5. Remove the thermal cooling assembly .
6. Disconnect the speaker interface cable connectors.
7. Remove the speaker assemblies by pulling them straight up and out of the bottom case assembly.
Replacing the Speaker Assembly
1. To replace the speaker assembly, place the mounting ring over the front palm rest screw post.
2. Slide the speaker assembly down into the bottom case assembly.
System Board Assembly
The system board's BIOS chip 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 that provides a utility for transferring the service tag number to the replacement system
board assembly.
HINT: The left speaker has an in-line connector, and its cable is shorter than the right speaker.
HINT: Speakers face out in the bottom case assembly holders.