Service manual

Running the Dell Diagnostics: Dell Latitude CP
● A diskette cannot be properly formatted, or format error messages appear on the screen.
● Data on diskettes is corrupted or lost; these problems may be intermittent.
Subtests
The four subtests available in the Diskette Drives test group confirm the following drive
functions:
● Change Line Test
Checks for bent pins on the diskette drive controller and for defective lines on the
diskette cable
● Seek Test
Checks the drive's ability to search for a specified track on the diskette and to position
the read/write heads of the drive to all tracks
● Read Test
Positions the read/write heads at each cylinder of the diskette and verifies that all tracks
on the diskette can be read correctly
● Write Test
Positions the read/write heads at each cylinder of the diskette and verifies that all tracks
on the diskette can be written to correctly
Hard-Disk Drives (Non-SCSI) Test Group
The subtests in the Hard-Disk Drives (Non-SCSI) test group check the functionality of up to
two hard-disk drives of any capacity. The subtests check the storage capability of a drive as
well as the hard-disk drive controller (which affects the ability to read from and write to the
drive).
Why Run a Hard-Disk Drives Test?
If you check your hard-disk drive to determine the amount of available space, your operating
system will probably report problem areas. Problem areas on hard-disk drives are common,
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