Service manual

Troubleshooting Your Computer: Dell Latitude CP
communication port options set correctly for the peripheral devices connected to the
computer?
Yes. Go to step 3.
No. Continue to step 2.
2. Change the Serial Port and Parallel Mode options to the appropriate settings; then
reboot the system.
Is the problem resolved?
Yes. You have fixed the problem.
No. Continue to step 3.
3. Check the contents of the initialization and start-up files. (See Installing and Configuring
Software.)
Are the port configuration commands correct?
Yes. Go to step 5.
No. Continue to step 4.
4. Change the necessary statements in the start-up files.
If the port problem is confined to a particular application program, see the application
program's documentation for specific port configuration requirements.
Is the problem resolved?
Yes. You have fixed the problem.
No. Continue to step 5.
5. Insert the Dell Diagnostics Diskette into drive A, reboot the computer, and run the Serial/
Infrared Ports test group and/or the Parallel Ports test group. (See
Running the Dell
Diagnostics.)
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