Audio System - Diagnostic Tips

9233hyundai01

Group: BODY ELECTRICAL


Number: 92-90-003


Date: APRIL, 1992


Model: ALL


Subject:
AUDIO SYSTEM DIAGNOSTIC TIPS


The purpose of this bulletin is to provide a basic troubleshooting guide to assist in diagnosing Hyundai audio systems. Detailed operational information regarding each specific model of radio is described in the vehicle's owners manual. Additional information is available in Hyundai Shop Manuals in the "Audio" portion of the Body Electrical section, as well as the "Sound" or "Audio" System portion of the Electrical Troubleshooting Manual.

Note:
Before diagnosing a customers complaint, be sure you are familiar with the operation and features of the various Hyundai audio systems. At times, the operation of Hyundai audio systems may be different than the customer has come to expect.





GENERAL TROUBLESHOOTING HINTS - RADIO

^ Verify the customer's complaint and make sure the customer understands the operation of the radio.

^ Compare operation of the radio in the customer's vehicle with an identical radio in a known good vehicle.

^ Test the radio outdoors with the hood of the vehicle closed (not under flourescent lights).

^ Check the radio and antenna grounding.

^ Ensure that the antenna cable is fully inserted into the radio and antenna connectors. Check the antenna to ensure it is securely attached to the vehicle, and that it is completely screwed into the base.

^ Check that the radio connector at the back of the radio case is fully inserted. Visually inspect all connector pins and receptacles.

^ Check that the speaker connectors are properly connected to the speakers.

^ Replacing the radio should only be done following thorough troubleshooting of the suspect unit.

AUDIO SYSTEM RECEPTION

Sometimes a customer may complain about a problem in FM reception that is really no problem at all. The customer may simply be noticing the normal characteristics of FM radios.

- Before testing a cutomers radio for a reception problem, find 3 strong local stations for comparison to the customer's selected station.

- The range of FM is less than that of AM. If the car is moving away from the station's transmitter, the signal will tend to fade out.





CASSETTE PLAYER - GENERAL TROUBLESHOOTING HINTS

- Verify the customer's complaint and make sure the customer understands the operation of the cassette player.

- Check inside the tape slot for foreign objects (old cassette labels, keys, coins, etc.).

- Test the suspect unit using a known good, pre-recorded tape.

- Inform customers that they must keep the cassette units clean. Commercial head cleaners are available at reasonable prices for head and capstan cleaning.

- Replacing the radio unit should only be done following thorough troubleshooting of the suspect unit.





COMPACT DISC PLAYER - GENERAL TROUBLESHOOTING HINTS

- Verify the customer's complaint and make sure the customer understands the operation of the CD player.

- Test the unit using a known good compact disc.

- Replacing the unit should only be done following thorough troubleshooting of the suspect unit.