Service manual

Running the Dell Diagnostics: Dell Latitude CP
● When you press a touch pad or mouse button, the function of the button continues - the
button seems to be stuck.
● If the response, when you press a touch pad or mouse button, is different from the usual
response or the response you anticipated, the button contact may be damaged.
● A touch pad or mouse button does not work at all.
● The cursor does not respond on the screen in accordance with the movements you
make with the touch pad or external mouse.
Subtests
There are no subtests for the Mouse test.
Diskette Drives Test Group
The subtests in the Diskette Drives test group allow you to test diskette drives of all capacities.
NOTE: Before running the Diskette Drives test group, install a CD-ROM drive in the
modular bay and attach the diskette drive to the parallel connector on the back of the
computer. The subtests in the test group will fail if you do not have a diskette drive
attached to the parallel connector.
Why Run a Diskette Drives Test?
Very often, a diskette drive problem may first appear to be a diskette problem. A box of
defective diskettes might produce faulty-drive error messages. The test results can be
confusing, so you should run the subtests in the Diskette Drives test group more than once
using diskettes from different sources.
Another possible cause of diskette drive problems is human error - for example, typing a
command in an incorrect form (usually called a syntax error). Be sure you have entered the
command properly.
When the diskette and command syntax are eliminated as causes, the following symptoms
usually suggest a drive problem and warrant running a subtest in the Diskette Drives test
group:
● An error message appears on the screen stating that the computer cannot read from or
write to a diskette.
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