Infiniti G37 Coupe. Manual - part 65

 

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Infiniti G37 Coupe. Manual - part 65

 

 

AV

MULTI AV SYSTEM

AV-13

< FUNCTION DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

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• AV control unit is connected with display and serial communication, and it transmits the required signal of

display and display control and receives the response signal from front display. Also, it is connected with sat-
ellite radio by serial communication, and it transmits the operating signal and receives the display signal.

NOTE:
AV control unit can perform CONSULT-III self-operating function and on board self-diagnosis.
• CONSULT-III self-diagnosis: refer to 

AV-26, "CONSULT - III Function (MULTI AV)"

.

• On board self-diagnosis: refer to 

AV-19, "Diagnosis Description"

.

SATELLITE RADIO SYSTEM

• Satellite radio tuner is controlled by communication signal and request signal with AV control unit.
• Audio signal (satellite radio) is received by satellite antenna and transmitted to AV control unit. AV control

unit is output the audio signal (satellite radio) to each speaker.

AUXILIARY INPUT SYSTEM

• Image and sound can be output from an external device by connecting a device with auxiliary input jacks.
• Operation can be performed with multifunction switch and steering switch. Multifunction switch transmits

operation signal to AV control unit with communication.

JPNIA0578GB

JSNIA0207GB

AV-14

< FUNCTION DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

MULTI AV SYSTEM

Component Parts Location

INFOID:0000000001559119

1.

Tweeter LH

2.

Door speaker LH

3.

Antenna amp.

4.

Rear speaker LH

5.

Satellite radio tuner

6.

Rear speaker RH

7.

Satellite radio antenna

8.

Door speaker RH

9.

Tweeter RH

10. Display unit

11. Steering switch

12. Preset switch

13. Auxiliary input jacks

14. AV control unit

15. Multifunction switch

A.

Within rear pillar finisher LH

B.

Trunk room RH

JPNIA0466ZZ

AV

MULTI AV SYSTEM

AV-15

< FUNCTION DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

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Component Description

INFOID:0000000001559120

Part name

Description

AV CONTROL UNIT

• It is the master unit of the MULTI AV system, and it is connected to each con-

trol unit by communication. It operates each system according to communi-
cation signals from the AV control unit.

• AV control unit includes audio function and vehicle information function.
• It is connected to ECM and unified meter and A/C amp via CAN communica-

tion to obtain necessary information for the vehicle information function.

• It is connected to BCM via CAN communication transmitting/receiving for the 

vehicle settings function.

• It inputs the illumination signals that are required for the display dimming con-

trol.

• It inputs the signals for driving status recognition (vehicle speed, reverse and 

parking brake). 

• Auxiliary image signal is input from the auxiliary input jacks.

DISPLAY UNIT

• Display image is controlled by the serial communication from AV control unit.
• RGB image signal is input from AV control unit (RGB, RGB area and RGB 

synchronizing). 

• Synchronizing signal (HP, VP) is output to AV control unit.
• Auxiliary image signal is input from the AV control unit.

DOOR SPEAKER

• Outputs sound signal from AV control unit.
• Outputs high, mid and low range sounds.

REAR SPEAKER

• Outputs sound signal from AV control unit.
• Outputs high, mid and low range sounds.

TWEETER

• Outputs sound signal from AV control unit.
• Outputs high range sound.

MULTIFUNCTION SWITCH

• Operation panel is equipped with the centralized switch where audio and 

auxiliary input operations are integrated.

• Connected with preset switch via cable, and operation signal is transmitted 

to AV control unit via AV communication. 

PRESET SWITCH

• Operation panel is equipped with the centralized switch where audio and air 

conditioner operations are integrated.

• Connected with multifunction switch via cable, and operation signal is trans-

mitted to AV control unit via AV communication.

• The CD ejection operating signal is performed by hardwire.

STEERING SWITCH

• The operation of Audio, etc. can be performed.
• Steering switch signal (operation signal) is output to AV control unit.

AUXILIARY INPUT JACKS

The image signal of the auxiliary input is output via the AV control unit to the 
display, and it outputs the sound signal to the AV control unit.

ANTENNA AMP.

• Radio signal received by glass antenna is amplified and transmitted to AV 

control unit.

• Power (antenna amp ON signal) is supplied from AV control unit.

SATELLITE RADIO TUNER

• Inputs the satellite radio signal from satellite radio antenna and outputs the 

sound signal to the AV control unit.

• It is controlled with the AV control unit and serial communication (communi-

cation signal and request signal).

SATELLITE RADIO ANTENNA

Receives the satellite radio signal and outputs it to the satellite radio tuner.

AV-16

< FUNCTION DIAGNOSIS >

[BASE AUDIO WITHOUT NAVIGATION]

AUDIO SYSTEM

AUDIO SYSTEM

System Diagram

INFOID:0000000001559121

System Description

INFOID:0000000001559122

The audio system is equipped with the following functions. Each function can be operated with the multifunc-
tion switch, preset switch or steering switch. It indicates the operation status of AUDIO to the display.

FUNCTION DESCRIPTION

Operating signal

Operation of the audio system can be performed with the multifunction switch, preset switch or steering
switch.
• Operating signal is transmitted to AV control unit with AV communication when it is operated by multifunction

switch or preset switch. The CD ejection operating signal is performed by hardwire.

• Operating signal is transmitted to AV control unit with steering switch signal when it is operated by steering

switch.

Screen display

• The display switching of the screen is performed with the communication signal between the display and the

AV control unit.

• The image signal to display operating condition is performed with RGB signal, RGB area signal and RGB

image synchronizing signal.

AM/FM Radio Mode

• AM/FM radio tuner is built into AV control unit.
• Audio signal is received by glass antenna, next it is amplified by antenna amp, and finally it is input to AV

control unit. AV control unit outputs the audio signal to each speaker.

CD Mode

• CD function is built into AV control unit.
• AV control unit outputs the audio signal to each speaker when inserting the CD to AV control unit.

JSNIA0208GB

Function

AM/FM radio

CD

 

 

 

 

 

 

 

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