3-30 Dell Latitude XPi CD Reference and Troubleshooting Guide2. Change the INFRARED DATA PORT option to theappropriate settings, and then reboot the system.Is the problem resolved?Yes. The problem is resolved.No. Go to step 3.3. Insert the Dell Diagnostics Diskette into drive A,reboot the computer, and run the Serial/InfraredPorts Test Group in the Dell diagnostics. (SeeChapter 4, “Running the Dell Diagnostics.”) Dothe tests complete successfully?The Serial/Infrared Ports Test Group checks thebasic functions of the computer’s infrared logic.Yes. The infrared ports are functioning properly.There may be a problem with the infrared applica-tion program or with the external device. Check thedocumentation that came with the application pro-gram and with the external device.No. Call Dell for technical assistance. (See Chap-ter 5, “Getting Help,” for instructions.)Troubleshooting Audio FunctionsThis section provides a procedure for troubleshooting thecomputer’s sound functions.Make a copy of the Diagnostics Checklist found in Chap-ter 5, and fill it out as you complete the followingprocedure:1. Press <FN >< END >. Do the built-in speakers emit abeep?Yes. All sound functions had been muted. Pressing< FN >< END > turns the sound back on. The problem isresolved.No. Go to step 2.2. Press < FN ><END > again. Then press<FN ><PAGE UP > several times. Can you hearsound coming from the built-in speakers?Yes. The volume was too low. Pressing the< FN >< PAGE UP > key combination increases thevolume. The problem is resolved.No. Go to step 3.3. Insert the Dell Diagnostics Diskette into drive A,reboot the computer, and run the Audio TestGroup in the Dell diagnostics. (See Chapter 4,“Running the Dell Diagnostics.”) Do the testscomplete successfully?The Audio Test Group checks the functionality ofthe audio controller.Yes. The controller is functioning properly. If theproblem persists, call Dell for technical assistance.(See Chapter 5, “Getting Help,” for instructions.)No. Call Dell for technical assistance. (See Chap-ter 5, “Getting Help,” for instructions.)
