Infiniti EX35. Manual - part 69

AV

RGB (B: BLUE) SIGNAL CIRCUIT

AV-57

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

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RGB (B: BLUE) SIGNAL CIRCUIT

Description

INFOID:0000000003508400

Transmit the image displayed with AV control unit with RGB signal to the display unit.

Diagnosis Procedure

INFOID:0000000003508401

1.

CHECK CONTINUITY RGB (B: BLUE) SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect display unit connector and AV control unit connector.

3.

Check continuity between display unit harness connector and AV control unit harness connector.

4.

Check continuity between display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB (B: BLUE) SIGNAL

1.

Connect display unit connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

Check signal between display unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace display unit.

NO

>> Replace AV control unit.

Display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M71

18

M83

38

Existed

Display unit

Ground

Continuity

Connector

Terminal

M71

18

Not existed

(+)

(

−

)

Condition

Reference value

Display unit

Connector

Terminal

M71

18

Ground

Start confirmation/adjustment 
mode, and then display color bar by 
selecting “Color Spectrum Bar” on 
DISPLAY DIAGNOSIS screen.

SKIB2237J

AV-58

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

RGB SYNCHRONIZING SIGNAL CIRCUIT

RGB SYNCHRONIZING SIGNAL CIRCUIT

Description

INFOID:0000000003508402

Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with
AV control unit.

Diagnosis Procedure

INFOID:0000000003508403

1.

CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect display unit connector and AV control unit connector.

3.

Check continuity between display unit harness connector and AV control unit harness connector.

4.

Check continuity between display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB SYNCHRONIZING SIGNAL

1.

Connect display unit connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

Check signal between display unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace display unit.

NO

>> Replace AV control unit.

Display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M71

19

M83

41

Existed

Display unit

Ground

Continuity

Connector

Terminal

M71

19

Not existed

(+)

(

−

)

Reference value

Display unit

Connector

Terminal

M71

19

Ground

SKIB3603E

AV

RGB AREA (YS) SIGNAL CIRCUIT

AV-59

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

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RGB AREA (YS) SIGNAL CIRCUIT

Description

INFOID:0000000003508404

Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display
unit.

Diagnosis Procedure

INFOID:0000000003508405

1.

CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect display unit connector and AV control unit connector.

3.

Check continuity between display unit harness connector and AV control unit harness connector.

4.

Check continuity between display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK RGB AREA (YS) SIGNAL

1.

Connect display unit connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

Check signal between display unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace display unit.

NO

>> Replace AV control unit.

Display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M71

9

M83

43

Existed

Display unit

Ground

Continuity

Connector

Terminal

M71

9

Not existed

(+)

(

−

)

Condition

Reference value

(Approx.)

Display unit

Connector

Terminal

M71

9

Ground

At RGB image is displayed

5.0 V

At AUX image is displayed

PKIB4948J

AV-60

< COMPONENT DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

Description

INFOID:0000000003508406

In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images dis-
played with AV control unit such as the image quality adjusting menu, etc.

Diagnosis Procedure

INFOID:0000000003508407

1.

CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect display unit connector and AV control unit connector.

3.

Check continuity between display unit harness connector and AV control unit harness connector.

4.

Check continuity between display unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK HORIZONTAL SYNCHRONIZING (HP) SIGNAL

1.

Connect display unit connector and AV control unit connector.

2.

Turn ignition switch ON.

3.

Check signal between display unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace AV control unit.

NO

>> Replace display unit.

Display unit

AV control unit

Continuity

Connector

Terminal

Connector

Terminal

M71

8

M83

45

Existed

Display unit

Ground

Continuity

Connector

Terminal

M71

8

Not existed

(+)

(

−

)

Reference value

Display unit

Connector

Terminal

M71

8

Ground

SKIB3601E