233

9.CD can not eject after inserted

(1) Check if the CD box power supply is NORMAL

1

Turn the ignition switch to ACC

2

Check the continuity between the CD box terminals under each operating condition as shown in the table

below

Standard:

3

 Check the voltage between terminals under each operating condition as shown in the table below.

Standard:

Normal: Replace CD, DVD box

Abnormal: Check if the head unit side C socket voltage output is NORMAL

(2) Check if the head unit side C socket voltage output is NORMAL

1

Turn the ignition switch to ACC

2

Check the continuity between the magnet head unit C socket terminals under each operating condition as

shown in the table below

Standard:

3

 Check the voltage between terminals under each operating condition as shown in the table below.

Standard:

Normal: Replace the signal wire connecting magnet head unit and CD box

Abnormal: Check the radio assembly (+B, ACC, GND)

(3) Check the radio assembly (+B, ACC, GND)

1

Check the continuity between terminals under each operating condition as shown in the table below.

Standard:

Tester Connection

Condition

Standard Status

+B - GND

Constant Status

10～14V

ACC - GND

Ignition switch ACC or ON

10～14V

Tester connection

Condition

Standard Status

GND

Constant Status

Continuity

Tester connection

Condition

Standard Status

GND

Constant Status

Continuity

Tester connection

Condition

Standard Status

GND

Constant Status

Continuity

Tester Connection

Condition

Standard Status

+B - GND

Constant Status

10～14V

ACC - GND

Ignition switch ACC or ON

10～14V

234

2

Check the voltage between terminals under each operating condition as shown in the table below.

Abnormal:

Repair or replace wire harness and connector

Normal: Check and replace radio assembly

10. Power coming in, but CD player not operating.

(1) Press CD player "OPEN" to see if CD ejects.

No  CD does not eject for inspection after being inserted

Yes Check if the right CD is inserted

(2) Check if the proper CD is inserted

1

Check if the proper CD is inserted

2

Make sure the working CD is music and it is not distorted, cracked, dirty, scratched or defected.

Standard: Working  music CD

Description:

Semi-transparent CD or CD of strange shape can not be played.

Music CD recorded in PC CD-ROM and recorded CD-R can not be played.

Adapter is not needed to play 8cm CD.

Abnormal: There is something wrong with CD

Normal: Check and insert a proper CD

(3) Check and insert a proper CD

1

Check and insert a proper CD.

2

Check if CD is installed in reverse order.

Standard: No

Abnormal: Install the disc correctly

Normal: Clean the disc

Tester Connection

Condition

Standard Status

+B - GND

Constant Status

10～14V

ACC - GND

Ignition switch ACC or ON

10～14V

235

(4) Replace it with another CD and re-check.

Replace the faulty CD with working CD to see if the same fault re-occurs.

Standard: The fault is cleared

Abnormal: There is something wrong with CD

Normal: Check if the radio auto-research function works

(5) Check if the radio auto-research function works

Perform the radio auto-research function

Standard: The fault is cleared.

Abnormal:  Go to  Step (9)

Normal: Has sudden temperature change occurred inside vehicle?

(6) Has sudden temperature change occurred inside vehicle?

Check if sudden temperature change has occurred inside vehicle

Standard: Sudden temperature change has occurred inside vehicle.

Description:

Formulation of dew condensation inside the CD player is due to temperature changes. CD may not play.

Normal: Formulation of dew condensation due to temperature changes (Leave it for a while before

using it)

Abnormal: Check the signal wire between the radio and disc box

(7) Check the signal wire for short circuit or open circuit.

Yes Replace the signal wire

No

Replace the disc box

(8) Replace the disc box

Standard: The faulty is cleared

Normal: Box faulty

Abnormal: Check the radio assembly (+B, ACC, GND)

(9) Check the radio assembly (+B, ACC, GND)

1

Check the continuity between terminals under each operating condition as shown in the table below.

Standard:

2

Check the voltage between terminals under each operating condition as shown in the table below.

Standard:

Tester Connection

Condition

Standard Status

+B - GND

Constant Status

10～14V

ACC - GND

Ignition switch ACC or ON

10 ～14V

Tester connection

Condition

Standard Status

GND

Constant Status

Continuity

236

Abnormal: Repair or replace wire harness and connector

Normal: Check and replace radio assembly

11. Sound quality poor only when playing CD (Volume faint)

(1) Replace it with another CD and re-check

Normal:  CD failure

Abnormal: Replace the disc box

(2) Replace the disc box

Normal: Box damaged

Abnormal: Check and replace radio assembly

12.CD sound jump

(1) Disc cleaning

If the disc gets dirty, clean the disc by wiping the surface from the center to outside in the radial directions

with a soft cloth.

Notice:

Do not use a conventional record cleaner or anti--static preservative.

Standard: The fault is cleared.

Normal: The disc is dirty

Abnormal: Replace it with another CD and re-check.

(2) Replace it with another CD and re-check.

Standard: The fault is cleared.

Normal:  CD  failure

Abnormal: Check when it will happen

(3) Check when it will happen

Check where sound jump will happen

Standard: Drive on bumpy road

Normal: Replace CD box

Abnormal: Compare with other vehicles of the same model

(4) Compare with other vehicles of the same model

Compare with other vehicles of the same model of no fault. Check for any difference when faulty

occurs.

Standard: No difference is found.

Normal: Make sure there is no difference

Abnormal: Check CD box installation

(5) Check CD box installation

Check CD box installation