Inspection Procedure 8

Inspection Procedure 8: CD/DVD cannot be played.

CAUTION: Before replacing the audio visual navigation unit, ensure that the power supply circuit, the ground circuit, and the communication circuit are normal. (Check that the voltage is 10 V or more.)

COMMENTS ON TROUBLE SYMPTOM
The CD/DVD or the audio visual navigation unit may be defective.

PROBABLE CAUSES
- Defective CD/DVD
- The audio visual navigation unit may be defective

DIAGNOSIS

STEP 1. Check the CD/DVD insertion surface.

Check if the CD/DVD is inserted with its correct surface facing upward.

Q: Is the check result normal?

YES : Go to step 2.

NO : Confirm the disc face, and insert it again. (If the disc is single-sided, its label should face up)

STEP 2. Check the CD/DVD.

- Check that the DVD has the correct region code.
- Check if the CD corresponds with the audio visual navigation unit.

Q: Is the check result normal?

YES : Go to step 3.

NO : Use the DVD with a correct region code. Or use the CD which corresponds with the audio visual navigation unit.

STEP 3. Check the CD/DVD.

Check that the CD/DVD is free of dirt or scratch.

Q: Is the check result normal?

YES : Go to step 4.

NO : Clean the disk, use a disk without scratches and burrs, or remove the burrs from the disk. Then, reinsert the disk.

STEP 4. Temporarily replace the CD/DVD with another one, and check the trouble symptom.

Check if another CD/DVD is played normally when it is inserted.

Q: Is the check result normal?

YES : Replace the used CD/DVD.

NO : Go to step 5.

STEP 5. Check the service data log for the MMCS service mode.

1. Display the service data log for the MMCS service mode. Service Mode
2. Check if the service data log for drive and HDD is displayed.

Q: Is the service data log displayed?

YES (The service data log for drive is displayed.) : Check for foreign materials or condensation. Repair if there is an abnormality, and then go to Step 6.

YES (The service data log for HDD is displayed.) : Abnormalities relating to high or low temperature may be present. Check if the audio visual navigation unit can be played at the operable temperature. If it cannot be played, go to Step 6.

NO : Go to step 6.

STEP 6. Perform "Network/Connect Line Check" in the MMCS service mode.

1. Display "Network/Connect Line Check" in the MMCS service mode. Service Mode
2. Check if "DVD Drive OK" is displayed.
3. Check if "HDD Drive OK" is displayed.

Q: Is the check result normal?

YES : Go to step 7.

NO : Replace the audio visual navigation unit.

STEP 7. Retest the system.

Check if the CD/DVD is played normally when it is inserted.

Q: Is the check result normal?

YES : The procedure is complete.

NO : Go to step 8.

STEP 8. Temporarily replace the audio visual navigation unit, and check the trouble symptom.

After temporary replacement of the audio visual navigation unit, check that the CD/DVD is played normally when it is inserted.

Q: Is the check result normal?

YES : Replace the audio visual navigation unit.

NO : Replace the CD/DVD.