Audio System - Diagnostic Tips
Group:ELECTRICAL
Number:
02-90-005
Date:
JUNE, 2002
Model:
ALL
Subject:
AUDIO SYSTEM DIAGNOSTIC TIPS
DESCRIPTION:
This bulletin provides a basic guide to assist in diagnosing Hyundai audio Systems. Detailed operational information regarding each specific model of radio is described in the vehicle's owner's 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 customer's audio system, 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 from what the customer has assumed.
RADIO DIAGNOSTIC HINTS:
^ Verify the customer's comments 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 vehicle where the radio is known to operate properly.
^ Test the radio outdoors with the hood of the vehicle closed (not under fluorescent 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 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.
^ Make sure the speaker connectors are properly connected to the speakers.
^ Replacing the radio should only be done thorough diagnosis shown.
RADIO DIAGNOSTIC PROCEDURES
AUDIO SYSTEM RECEPTION:
A customer may comment about a characteristic of FM reception that is really not a problem, but the normal operation of FM radios.
^ Before testing a customer's radio for reception, find three 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.
^ Most aftermarket window tint films will interfere with the reception on vehicles with in-glass antennas. The factory tint does not affect reception.
CASSETTE PLAYER DIAGNOSTIC HINTS:
Verify the customer's comments 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 unit using a known good, pre-recorded tape.
^ Verify that any customer recorded tapes are made with good quality blank tapes. The use of 90 minutes or longer blank tapes is not recommended.
^ 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 diagnosis.
CASSETTE PLAYER DIAGNOSTIC PROCEDURES
COMPACT DISC PLAYER DIAGNOSTIC HINTS
^ Verify the customer's comments 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 diagnosis.
COMPACT DISC PLAYER DIAGNOSTIC PROCEDURES
If a CD player malfunction occurs, an error code will appear on the LED display. The following list describes each error code and a diagnostic step to assist in correcting the malfunction.
AUDIO FAULT CODES
NOTE:
Some customer recorded CDs (CDR, CDRW) may not play properly on some Hyundai radios. Paper labels should never be used in Hyundai radios. The heat in the radios can cause the labels to separate from the CD, causing the CD mechanism to lock up. Radio replacements where there is CD label residue in the CD player are not warrantable.
WARRANTY INFORMATION:
Normal warranty procedures apply (see the Labor Time Standard LTS).
The warranty covers defects in workmanship or materials. Foreign objects or labels trapped inside the tape or CD players are not covered under warranty.