Inspection Procedure 10

Inspection Procedure 10: Sound of a DVD can be played, but no image is played.

CAUTION: Whenever the audio visual navigation unit is replaced, ensure that the power supply circuit and the grounding circuit are normal. (Check that the voltage is 10 V or more.)

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

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

DIAGNOSIS

STEP 1. Check the DVD.

Check that the DVD is free of dirt or scratch.

Q: Is the check result normal?

YES : Go to step 2.

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

STEP 2. Temporarily replace the DVD with another DVD, and check the trouble symptom.

Check if the new DVD is played normally when it is inserted.

Q: Is the check result normal?

YES : Replace the used DVD.

NO : Go to step 3.

STEP 3. 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 that the service data log for drive is displayed.
3. Check that the service data log for monitor is displayed.
4. Check that the service data log for 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 4.

YES (The service data log for monitor or HDD is displayed.) : Abnormalities relating to high or low temperature may be present. Check if the DVD image is displayed on the monitor within the temperature range where the navigation and menu screens can be displayed. If the image is not displayed, go to Step 4.

NO : Go to step 4.

STEP 4. 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 5.

NO : Replace the audio visual navigation unit.

STEP 5. Temporarily replace the audio visual navigation unit, and check the trouble symptom.

After temporary replacement of the audio visual navigation unit, check if the DVD image is displayed.

Q: Is the check result normal?

YES : Replace the audio visual navigation unit.

NO : Replace the DVD.