Dell Latitude CPi User Guide - Page 202

Subtests, Why Run a Serial/Infrared Ports Test?, Eject Removable Media

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disc or from the drive. When you encounter problems, first try using a different CD. If the problem recurs, run the IDE CD-ROM Drives test group. These are the most common symptoms that might prompt you to test an IDE CD-ROM drive: Seek errors are reported by the operating system or application programs. An error message appears on the screen stating that the computer cannot read from an IDE CD-ROM drive. Subtests The five subtests in the IDE CD-ROM Drives test group confirm the following drive functions: Drive Controller Test Causes the drive to execute its internal self-test. Seek Test Checks the drive's ability to search for each block on the device. Read Test Positions the read heads at each block of the device for reading data and verifies that all blocks on the device can be read 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 IDE CD-ROM Drives test group; you must select this subtest individually. Eject Removable Media Checks the drive's ability to eject the CD tray. Serial/Infrared Ports Test Group The subtests in the Serial/Infrared Ports test group check the computer's interface with external devices (such as a serial mouse or a printer). The subtests in this test group are not intended as a diagnostic test for the external device itself. Why Run a Serial/Infrared Ports Test? It may not be immediately evident whether the port or the external device is faulty. In both cases, the external device (such as a serial mouse or a printer) might behave erratically or not operate at all. Eliminate incorrect system configuration information settings, peripheral malfunctions, and software errors as potential causes of infrared (IR) port problems, before you run the subtests in the Serial/Infrared Ports test group to check your hardware.

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disc or from the drive. When you encounter problems, first try using a different CD. If the problem recurs, run
the IDE CD-ROM Drives test group.
These are the most common symptoms that might prompt you to test an IDE CD-ROM drive:
Seek
errors are reported by the operating system or application programs.
An error message appears on the screen stating that the computer cannot read from an IDE CD-ROM
drive.
Subtests
The five subtests in the IDE CD-ROM Drives test group confirm the following drive functions:
Drive Controller Test
Causes the drive to execute its internal self-test.
Seek Test
Checks the drive's ability to search for each block on the device.
Read Test
Positions the read heads at each block of the device for reading data and verifies that all blocks on the
device can be read 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 IDE CD-ROM Drives
test group; you must select this subtest individually.
Eject Removable Media
Checks the drive's ability to eject the CD tray.
Serial/Infrared Ports Test Group
The subtests in the Serial/Infrared Ports test group check the computer's interface with external devices
(such as a serial mouse or a printer). The subtests in this test group are not intended as a diagnostic test for
the external device itself.
Why Run a Serial/Infrared Ports Test?
It may not be immediately evident whether the port or the external device is faulty. In both cases, the external
device (such as a serial mouse or a printer) might behave erratically or not operate at all. Eliminate incorrect
system configuration information settings, peripheral malfunctions, and software errors as potential causes of
infrared (IR) port problems, before you run the subtests in the Serial/Infrared Ports test group to check your
hardware.