Whenever the multivision display is replaced, ensure that the power supply circuit and the earthing circuit are normal. (Check that the voltage is 10 V or more.)
COMMENTS ON TROUBLE SYMPTOM
The CD or the multivision display may be defective.
PROBABLE CAUSES
Defective CD
Malfunctions of multivision display
DIAGNOSIS PROCEDURE
STEP 1. Check if the error message is displayed on the monitor.
(Refer to .)
Q.
Is the error message displayed on the monitor?
YES : Refer to error message (refer to ), take necessary steps. If the CD is still not be played, go to Step 2.
Go to Step 2.
STEP 2. Check the CD insertion surface.
Check that the CD is inserted with the correct surface facing up.
Q.
Is the check result normal?
Go to Step 3.
Check the disc insertion surface, and reinsert the disc. (In case of a single-sided disc, insert it with its label facing upward.)
STEP 3. Check the CD.
Check if the CD corresponds with the multivision display.
Q.
Is the check result normal?
Go to Step 4.
Use a CD corresponds with the multivision display.
STEP 4. Check the CD.
Check that the CD is free of dirt or scratch.
Q.
Is the check result normal?
Go to Step 5.
Clean the disc, use a disc without scratches and burrs, or remove the burrs from the disc, and then reinsert the disc.
STEP 5. Temporarily replace the CD with another CD, and check the trouble symptom.
Check that the new CD is played normally when it is inserted.
Q.
Is the check result normal?
Replace the used CD.
Go to Step 6.
STEP 6. Check the service data log for the MMCS service mode.
(1)Display the service data log for the MMCS service mode. (Refer to .)
(2)Check if the service data log for drive is displayed.
Q.
Is the service data log displayed?
Check for foreign materials or condensation. Repair if there is an abnormality, and then go to Step 7.
Go to Step 7.
STEP 7. Perform "Communications &
Connection Check" in the MMCS service mode.
(1)Display "Communications &
Connection Check" in the MMCS service mode. (Refer to .)
(2)Check if "CD Drive OK" is displayed.
Q.
Is the check result normal?
YES : Go to Step 8.
NO : Replace the multivision display.
STEP 8. Check of the troubles
Check that the new CD is played normally when it is inserted.
Q.
Is the check result normal?
The diagnosis is complete.
Go to Step 9.
STEP 9. Temporarily replace the multivision display, and check the trouble symptom.
After temporary replacement of the multivision display, check that the new CD is played normally when it is inserted.
.)
: Refer to error message (refer to 
Go to Step 2.
Go to Step 3.