NO SOUND OUTPUT IN CD MODE [CAR-NAVIGATION SYSTEM (DISPLAY-INTEGRATED TYPE)]
id0903l4103400
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Description |
No sound output in CD mode |
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POSSIBLE CAUSE
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• CD insertion direction mistaken (playback side and printed label side reversed)
• CD malfunction (such as scratches, dirt, burrs, or warp)
• CD malfunction (data type other than CDDA/MP3/WMA mixed in with disc)
• Car-navigation unit malfunction
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Diagnostic Procedure
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Step |
Inspection |
Action |
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1
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VERIFY MALFUNCTION SYMPTOM
• Set to the radio mode and verify that sound is output.
• Is sound output?
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Yes
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Go to the next step.
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No
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Follow the diagnostic procedure for the malfunction symptom “NO SOUND OUTPUT IN ALL MODES”.
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2
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VERIFY IF MALFUNCTION CAUSE IS CD INSERTION DIRECTION
• Verify the CD insertion direction when the malfunction occurred.
• Is the CD inserted with the printed label pointed up?
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Yes
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Go to the next step.
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No
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Explain to the customer the cautionary notes in the owner's manual (insert CD with printed label side pointed up).
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3
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VERIFY CD CONDITION
• Verify the disc condition.
• Is there any dirt and damage on the disc?
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Yes
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Remove dirt on the disc or replace with an undamaged disc.
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No
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Go to the next step.
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4
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DETERMINE IF MALFUNCTION CAUSE IS DISC
• Replace the CD with one not used when the malfunction occurred.
• Is playback possible?
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Yes
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Go to the next step.
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No
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Replace the car-navigation unit.
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5
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VERIFY IF DATA TYPE OTHER THAN CDDA/MP3/WMA IS MIXED IN DISC
• Verify the data content in the disc.
• Is there data other than CDDA/MP3/WMA data mixed in?
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Yes
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Replace with a disc containing only CDDA/MP3/WMA data and verify the malfunction symptom.
If the malfunction symptom is eliminated
• System is normal (explain to the customer that the cause was a disc containing data other than CDDA/MP3/WMA).
If the malfunction symptom is not eliminated
• Replace the car-navigation unit.
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No
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Replace the car-navigation unit.
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