Before You Begin: Dell Latitude C840 Service Manual
Before You Begin
Dell™ Latitude™ C840 Service Manual
Preparing to Work Inside the Computer
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 warrantly. Read and follow all safety instructions in "Safety and EMC
Instructions: Portable Computers" in your
System Information Guid
e.
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.
NOTE:
Before turning off the computer, ensure that the computer is not in a power-
management mode.
4. Ensure that the computer is undocked.
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 or plastic blanks from the PC Card slot.
9. Close the display and turn the computer upside down on a flat work surface.
file:///I|/SERVICE%20MANUALS/DELL%20MANUALS/LA...ok/Latitude/C840/C840_SERVICE_MANUAL/begin.htm (1 of 5)6/21/2004 1:36:09 AM