Service manual

Troubleshooting Your Computer: Dell Latitude CP
Look and Listen
Looking at and listening to your computer is important in determining the source of a problem.
Look and listen for the indications described in Table 3-1. If looking and listening to the
computer does not resolve the problem, see the next subsection, "
System Setup Options."
Table 3-1. Boot Routine Indications
Look for: Action
An error message See Messages and Codes.
The power indicator If the computer's power indicator does not come on, see
Troubleshooting a Power Failure.
The keyboard indicators If the Num Lock, Caps Lock, and Scroll Lock indicators
flash simultaneously after the boot routine, see
System
Flash Codes found.
Press the <Num Lock>, <Caps Lock>, and <Scroll Lock>
keys to toggle their respective keyboard indicators on and
off. If the indicators do not light up, run the Keyboard test
group in the Dell Diagnostics. (For instructions, see
Running the Dell Diagnostics.)
The drive access indicator The drive access indicator should flicker when you access
data on the diskette drive, hard-disk drive, or CD-ROM
drive. If the power indicator, drive access indicator, and
battery indicator flash simultaneously, see System Flash
Codes.
A series of flashing lights See Messages and Codes.
file:///I|/SERVICE%20MANUALS/DELL%20MANUA...20REF%20AND%20TROUBLESHOOTING/TROUBLE.HTM (4 of 45)6/21/2004 1:38:41 AM