How to Diagnose the Trouble Related to the CD or Cassette

How to diagnose the trouble when the memory of the radio disappears

1.	Confirm the voltage of battery. Is the voltage of the battery normal? YES - Go to 6. NO - Go to 2.

2.	Charges the battery, then measure a voltage again. Is the voltage of the battery normal? YES - Go to 3. NO - Replace the battery.n

3.	Connect the battery positive cable with negative cable, and remove the center panel from the dashboard.

4.	Disconnect the 20P connector from the audio unit.

5.	Check for voltage between the audio unit 20P connector No. 2 terminal and ground.   Is there battery voltage? YES - Go to 6. NO - Repair open in the wire or inspect the audio unit connector.n

6.	Push either of preset buttons, and confirm whether a symptom occurs. Does a symptom occur? YES - Replace the audio unit.n NO - Check it again because it thinks about a transient trouble.n

How to diagnose the trouble when you can't remove the cassette or CD from the drive even pressing the EJECT button

1.	Push the EJECT button, and confirm whether a CD or a cassette is discharged normally or not. Are you discharged normally? YES - Operation is normal.n NO - Go to 2.

2.	Confirm whether it is completely discharged from the audio unit. Are you discharged from the audio unit so that it may be stuck? YES - Go to 3. NO - Replace the audio unit when you can't discharge it completely from the audio unit.n

3.	Change it for another CD or the cassette, and reconfirm. Does the same symptom occur? YES - Replace the audio unit.n NO - Replace the CD or cassette.n

How to diagnose the trouble at the time of the error indication of the audio unit

1.	Insert a CD or a cassette, and confirm whether a symptom reappears. Do you indicate an error? YES - Go to 2. NO - Operation is normal.n

2.	Exchange it for another CD or cassette, and reconfirm it. Does a symptom occur? YES - Replace the audio unit.n NO - Replace the CD or cassette.n

How to diagnose a trouble for the sound of the CD or the cassette to be interrupted halfway

1.	Insert a CD or a cassette, and confirm whether a symptom reappears. Did a symptom reappear again? YES - Go to 2. NO - Operation is normal.n

2.	Confirm whether there is a wrong point in the CD or the cassette. Is there a wrong point in the CD or the cassette? YES - Insert and reconfirm a normal CD or a cassette.n NO - Go to 3.

3.	It is the flat ground and confirm whether a symptom occurs. Does a symptom occur? YES - Replace the audio unit.n NO - Operation is normal.n

How to diagnose the trouble when sound doesn't come out at all

1.	Only a specific speaker confirms whether sound doesn't come out. Only the specific speaker doesn't sound come on? YES - Go to 2. NO - Go to 5.

2.	Confirm whether there is a wrong point in the speaker which sound doesn't come out in. Is there a wrong point in the speaker? YES - Reconfirm it after you replace a speaker.n NO - Go to 3.

3.	Confirm the connector connection condition of the speaker. Is a connector connected with the speaker securely? YES - Go to 4. NO - Reconfirm it because it thinks about a transient trouble.n

4.	Do a continuity check after you remove the connector of the audio unit and the connector of the speaker. Is there continuity? YES - Go to 5. NO - Repair in the wire.n

5.	Check the connection condition of the connector of the audio unit. Is a connector connected with the audio unit securely? YES - Replace the audio unit.n NO - Reconnect a connector with the audio unit again, and confirm it.n

The way whose it is small too mach and that or the sound of the speaker diagnoses the trouble when sound to be distorted.

1.	Confirm whether a symptom occur in all the CD or the cassette. Does a symptom occur? YES - Go to 2. NO - Replace the CD or cassette.n

2.	Confirm whether there is wrong point in the speaker. Is there a wrong point in the speaker? YES - Replace the speaker.n NO - Replace the audio unit.n