Service manual

Troubleshooting Your Computer: Dell Latitude CP
The Serial/Infrared Ports test group and the Parallel Ports test group check the basic
functions of the system board's I/O port logic. Also, if a parallel printer is connected to
the parallel port, the Parallel Ports test group tests the communication link between the
system board's I/O port logic and the printer.
Do the tests complete successfully?
Yes. The problem may be with the external device. Check the documentation that came
with the device for any troubleshooting procedures.
No. Call Dell for technical assistance. See
Getting Help, for instructions.
6. The problem may be with the external device.
Troubleshooting the Infrared Port
This section provides a procedure for troubleshooting the computer's infrared port. Make a
copy of the Diagnostics Checklist found in
Getting Help, and fill it out as you complete the
following procedure.
NOTE: Before beginning this procedure, check the infrared settings in Windows 95. Select
the Start button, and point to Settings and then to Control Panel. Double-click the Infrared
icon.
1. Check the setting for the Infrared Data Port option in the System Setup program. Is the
setting correct?
For information on the System Setup program, see
Using the System Setup Program. Is
the Infrared Data Port option set correctly for the external device with which you are
communicating? You may need to check the documentation that accompanied the
device to determine the proper setting.
Yes. Go to step 3.
No. Go to step 2.
2. Change the Infrared Data Port option to the appropriate setting, and then reboot the
system.
Is the problem resolved?
file:///I|/SERVICE%20MANUALS/DELL%20MANU...0REF%20AND%20TROUBLESHOOTING/TROUBLE.HTM (44 of 45)6/21/2004 1:38:41 AM