Infiniti G37 Coupe. Manual — part 93
AV
MULTI AV SYSTEM
AV-125
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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FUNCTION DIAGNOSIS
MULTI AV SYSTEM
System Diagram
INFOID:0000000001558983
NOTE:
The name MULTIFUNCTION SWITCH indicates the integration of PRESET SWITCH and MULTIFUNCTION
SWITCH virtually.
System Description
INFOID:0000000001558984
Multi AV system means that the following systems are integrated.
• AV control unit functions by transmitting/receiving data one by one with each unit (slave unit) that configures
them completely as a master unit by connecting between units that configure MULTI AV system with two AV
communication lines (H, L).
• Two AV communication lines (H, L) adopt a twisted pair line that is resistant to noise.
• AV control unit is connected by CAN communication, and it receives data signal from ECM, unified meter
and A/C amp. It computes and displays fuel economy information value with the obtained information. Trans-
JPNIA0404GB
System name
System explanation
AUDIO SYSTEM
VEHICLE INFORMATION SYSTEM
• Indicates the status of audio, climate control system, fuel econ-
omy and maintenance.
• AV control unit displays the fuel consumption status while re-
ceiving data signal through CAN communication from ECM,
unified meter and A/C amp and BCM.
HANDS-FREE PHONE SYSTEM
SATELLITE RADIO SYSTEM
Refer to “SATELLITE RADIO SYSTEM” shown below.
AUXILIARY INPUT SYSTEM
Refer to “AUXILIARY INPUT SYSTEM” shown below.
AV-126
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
MULTI AV SYSTEM
mitting/receiving of data signal is performed by BCM. Also, it transmits the required signal of vehicle setting
and receives the response signal.
• 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-145, "CONSULT - III Function (MULTI AV)"
.
• On board self-diagnosis: refer to
AV-136, "Diagnosis Description"
On board self-diagnosis of TEL adapter unit can be performed.
• Refer to
AV-148, "Diagnosis Description"
for on board self-diagnosis.
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. Audio signal
(satellite radio) is transmitted from AV control unit to BOSE amp. and transmitted from BOSE amp. to woofer
amp. and 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.
JSNIA0549GB
JSNIA0172GB
AV
MULTI AV SYSTEM
AV-127
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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Component Parts Location
INFOID:0000000001558985
1.
Center speaker
2.
Tweeter LH
3.
Door squawker LH
4.
Door woofer LH
5.
Rear speaker LH
6.
Antenna amp.
7.
BOSE amp.
8.
Woofer amp.
9.
Rear woofer LH
10. Satellite radio tuner
11. TEL adapter unit
12. Rear woofer RH
13. Rear speaker RH
14. Satellite radio antenna
15. Door woofer RH
16. Door squawker RH
17. Tweeter RH
18. Microphone
19. iPod adapter
20. Steering switch
21. Preset switch
22. Auxiliary input jacks
23. iPod connector
24. AV control unit
25. Multifunction switch
26. Display unit
A.
Within rear pillar finisher LH
B.
Trunk room LH
C.
Trunk room RH
D.
Rear view of the display
JPNIA0467ZZ
AV-128
< FUNCTION DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
MULTI AV SYSTEM
Component Description
INFOID:0000000001558986
Part name
Description
AV CONTROL UNIT
• It is the master unit of the MULTI AV system, and it is connected to each control
unit by communication. It operates each system according to communication
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 syn-
chronizing).
• Synchronizing signal (HP, VP) is output to AV control unit.
• Auxiliary image signal is input from AV control unit.
BOSE AMP.
Inputs power (amp ON) and sound signal from AV control unit, and outputs sound
signal to woofer amp. and each speaker.
WOOFER AMP.
Inputs power (amp ON) and sound signal from BOSE amp., and outputs sound
signal to rear woofer.
DOOR WOOFER
• Outputs sound signal from BOSE amp.
• Outputs low-pitched sound.
DOOR SQUAWKER
• Outputs sound signal from BOSE amp.
• Outputs midrange sound.
REAR SPEAKER
• Outputs sound signal from BOSE amp.
• Outputs high, mid and low range sounds.
TWEETER
• Outputs sound signal from BOSE amp.
• Outputs high range sound.
CENTER SPEAKER
• Outputs sound signal from BOSE amp.
• Outputs high, mid and low range sounds.
REAR WOOFER
• Outputs sound signal from woofer amp.
• Outputs low-pitched sound.
MULTIFUNCTION SWITCH
• Operation panel is equipped with the centralized switch where audio and aux-
iliary input operations are integrated.
• Connected with AV control unit 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 transmit-
ted to AV control unit via AV communication.
• The CD ejection operating signal is performed by hardwire.
STEERING SWITCH
• Operations such as audio and hands-free phone are possible.
• Steering switch signal (operation signal) is output to AV control unit.
MICROPHONE
• Used only when hands-free phone is operated.
• Outputs Mic. signal (TEL voice signal) to the TEL adapter unit.
• The power (Mic. power supply) is supplied from the TEL adapter unit.
AUXILIARY INPUT JACKS
The image signal of the auxiliary input is output via the AV control unit to the dis-
play, 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 con-
trol unit.
• Power (antenna amp ON signal) is supplied from AV control unit.
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