Service manual

Troubleshooting Your Computer: Dell Latitude CP
No boot sector on hard-disk
drive
The operating system may be
corrupted.
Reinstall your operating system.
See the documentation that came
with your operating system.
No timer tick interrupt A chip on the system board may
be malfunctioning.
Run the System Set test group in
the Dell Diagnostics. (For
instructions, see
Running the
Dell Diagnostics.)
Non-system disk or disk
error
The diskette in drive A or your
hard-disk drive does not have a
bootable operating system
installed on it.
If you are trying to boot from the
diskette, replace it with one that
has a bootable operating system.
If you are trying to boot from the
hard-disk drive, see
Troubleshooting the Hard-Disk
Drive.
Not a boot diskette There is no operating system on
the diskette.
Boot the computer with a diskette
that contains an operating system.
Optional ROM bad
checksum
The optional ROM apparently
failed.
Call Dell for technical assistance.
(For instructions, see Getting
Help.)
Sector not found The operating system cannot
locate a sector on the diskette or
hard-disk drive. You probably
have a bad sector or corrupted
FAT on the diskette or hard-
disk drive.
Run the appropriate utility to
check the file structure on the
diskette or hard-disk drive. If a
large number of sectors are
defective, back up the data (if
possible), and then reformat the
diskette or hard-disk drive.
Seek error The operating system cannot
find a specific track on the
diskette or hard-disk drive.
If the error is on the diskette
drive, try another diskette in the
drive. If the error persists, see
Troubleshooting the Diskette
Drive. If the error is on the hard-
disk drive, see
Troubleshooting
the Hard-Disk Drive.
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