Service manual

Running the Dell Diagnostics: Dell Latitude CP
write to a SCSI device.
● Data on a SCSI device is corrupted or lost; these problems may be intermittent. Once
saved by a program, files cannot be properly recalled.
Subtests
The seven subtests in the SCSI Devices test group confirm the following drive functions:
● Internal Diagnostic Test
Causes the device to run its internal self-test.
● Seek Test
Checks the device's ability to search for a specified track on the device and to position
its read/write heads to all tracks.
● Read Test
Positions the read/write heads at each block of the device for reading data and verifies
that all tracks on the device can be read correctly.
● Write Test
Positions the read/write heads at each block of the device and verifies that all tracks on
the device can be written to correctly.
● Audio Output Test
Causes the drive to begin playing the first audio track on an audio CD. (To determine if
the test passed, listen to the audio output of the drive.)
NOTE: The Audio Output Test does not run automatically as part of the SCSI
Devices test group; you must select this subtest individually.
● Eject Removable Media Test
Causes a CD-ROM drive to eject its CD, or a SCSI tape drive to eject its tape cartridge.
● Display Information Test
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