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Mitsubishi L200. Manual - part 751

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-371

STEP 3. Confirming GPS signal reception
(1) Start the multivision display.

(2) Press the (1).

(3) Select (2).

(4) Wait for 5 minutes, and then check whether GPS

signal can be received.

Q: Can GPS signal be received?

YES :

The diagnosis is complete. (There is no

failure)

NO :

Go to Step 4.

STEP 4. Substitute a known good multivision
display, and check the trouble symptom.
(1) Temporarily replace the multivision display.
(2) Start the multivision display.

(3) Press the (1).

(4) Select (2).

(5) Wait for 5 minutes, and then check whether GPS

signal can be received.

Q: Is the check result normal?

YES :

Replace the multivision display.

NO :

Replace the GPS antenna.

Inspection Procedure 8: CD/DVD cannot be played.

CAUTION

Whenever the multivision display is replaced,
ensure that the power supply circuit and the
earthing circuit are normal. (Check that the volt-
age is 10 V or more.)

COMMENTS ON TROUBLE SYMPTOM
The CD/DVD or the multivision display may be
defective.

PROBABLE CAUSES

• Defective CD/DVD

AC804201

(1)

AC804200

(2)

AC803908

AC804201

(1)

AC804200

(2)

AC803908

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-372

• Malfunctions of multivision display

DIAGNOSIS PROCEDURE

STEP 1. Check if the error message is displayed
on the monitor.
(Refer to

P.54A-301

Q: Is the error message displayed on the monitor?

YES :

Refer to error massage (refer to

P.54A-

301

), take necessary steps. If the CD or

DVD is still not be played, go to Step 2.

NO :

Go to Step 2.

STEP 2. Check the CD/DVD insertion surface.
Check that the CD/DVD is inserted with the correct
surface facing up.

Q: Is the check result normal?

YES :

Go to step 3.

NO :

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/DVD.

• Check that the DVD has the correct region code.

• Check if the CD corresponds with the multivision

display.

Q: Is the check result normal?

YES :

Go to step 4.

NO :

Use a DVD with a correct region code. Or,
use a CD corresponds with the multivision
display.

STEP 4. 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 5.

NO :

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 /DVD with
another CD or DVD, and check the trouble
symptom.
Check that the new 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 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

P.54A-305

(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 7.

YES (The service data log for HDD is displayed.) :

Abnormalities relating to high or low
temperature may be present. Check that the
multivision display can play the disc at the
operable temperature. If it cannot be played
normally, go to Step 7.

NO :

Go to step 7.

STEP 7. Perform "Network/Connect Line Check"
in the MMCS service mode.
(1) Display "Network/Connect Line Check" in the

MMCS service mode. (Refer to

P.54A-305

(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 8.

NO :

Replace the multivision display.

STEP 8. Check of the troubles
Check that the new CD/DVD is played normally
when it is inserted.

Q: Is the check result normal?

YES :

The diagnosis is complete.

NO :

Go to step 9.

STEP 9. Temporarily replace the multivision
display, and check the trouble symptom.
After temporary replacement of the multivision dis-
play, check that the new CD/DVD is played normally
when it is inserted.

Q: Is the check result normal?

YES :

Replace the multivision display.

NO :

Replace the CD/DVD.

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-373

Inspection Procedure 9: Image of a DVD is played, but no sound is played.

CAUTION

Whenever the multivision display is replaced,
ensure that the power supply circuit and the
earthing circuit are normal. (Check that the volt-
age is 10 V or more.)
COMMENTS ON TROUBLE SYMPTOM
The DVD or the multivision display may be defective.

PROBABLE CAUSES

• Defective DVD

• Malfunctions of multivision display

DIAGNOSIS PROCEDURE

STEP 1. Check if the error message is displayed
on the monitor.
(Refer to

P.54A-301

Q: Is the error message displayed on the monitor?

YES :

Refer to error massage (refer to

P.54A-

301

), take necessary steps. If the DVD

sound is still not output, go to Step 2.

NO :

Go to Step 2.

STEP 2. Check whether other sounds are
emitted.
Check whether sound other than DVD is emitted.
(1) Check if the sound is output when the music

server is used.

(2) Check if the sound is output when the radio is

used.

(3) Check if the sound is output when the CD is

used.

Q: Is sound other than DVD emitted?

YES :

Go to Step 3.

NO :

Troubleshoot the MMCS. (Refer to

P.54A-

314

STEP 3. Check a DVD to be inserted.
Check if the sound is recorded in the DVD, using
other DVD players.

Q: Is sound data recorded in the DVD?

YES :

Go to Step 4.

NO :

Use a DVD containing sound data.

STEP 4. Check the DVD.
Check that the DVD is free of dirt or scratch.

Q: Is the check result normal?

YES :

Go to step 5.

NO :

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 DVD with
another DVD, and check the trouble symptom.
Check if the DVD is played normally when it is
inserted.

Q: Is the check result normal?

YES :

Replace the used DVD.

NO :

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

P.54A-305

(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 7.

YES (The service data log for HDD is displayed.) :

Abnormalities relating to high or low
temperature may be present. Check that the
multivision display can play the disc at the
operable temperature. If it cannot be played
normally, go to Step 7.

NO :

Go to step 7.

STEP 7. Perform "Network/Connect Line Check"
in the MMCS service mode.
(1) Display "Network/Connect Line Check" in the

MMCS service mode. (Refer to

P.54A-305

(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 8.

NO :

Replace the multivision display.

STEP 8. Check of playing method
Check whether the disc was played normally and not
with special playback (fast rewind, fast forward, slow,
pause). Also, check whether the mute mode was
selected. After that, check if the DVD is played nor-
mally when it is inserted.

Q: Is the check result normal?

MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS)

CHASSIS ELECTRICAL

54A-374

YES :

This diagnosis is complete.

NO :

Go to step 9.

STEP 9. Temporarily replace the multivision
display, and check the trouble symptom.
After temporary replacement of the multivision dis-
play, check that the new DVD is played normally
when it is inserted.

Q: Is the check result normal?

YES :

Replace the multivision display.

NO :

Replace the DVD.

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

CAUTION

PROBABLE CAUSES

• Defective DVD

• Malfunctions of multivision display

DIAGNOSIS PROCEDURE

STEP 1. Check if the error message is displayed
on the monitor.
(Refer to

P.54A-301

Q: Is the error message displayed on the monitor?

YES :

Refer to error massage (refer to

P.54A-

301

), take necessary steps. If the CD or

DVD is still not be played, go to Step 2.

NO :

Go to Step 2.

STEP 2. Check the DVD.
Check that the DVD is free of dirt or scratch.

Q: Is the check result normal?

YES :

Go to step 3.

NO :

Clean the disc, use a disc without scratches
and burrs, or remove the burrs from the
disc, and then reinsert the disc.

STEP 3. Temporarily replace the DVD with
another DVD, and check the trouble symptom.
Check if another DVD is played normally when it is
inserted.

Q: Is the check result normal?

YES :

Replace the used DVD.

NO :

Go to step 4.

STEP 4. Check the service data log for the MMCS
service mode.
(1) Display the service data log for the MMCS

service mode. (Refer to

P.54A-305

(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 error 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 5.

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 5.

NO :

Go to step 5.

STEP 5. Perform "Network/Connect Line Check"
in the MMCS service mode.
(1) Display "Network/Connect Line Check" in the

MMCS service mode. (Refer to

P.54A-305

(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 6.

NO :

Replace the multivision display.

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