MULTI AV SYSTEM : System Description

Multi AV system means that the following systems are integrated.

FUNCTION NAME
Audio function
DVD playback function
Bluetooth™ hands-free phone function
Mobile entertainment system
Auxiliary input function
Rear view monitor function
Vehicle information function
Auto Light adjustment system

COMMUNICATION SIGNAL

• AV control unit function 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 with front display unit and serial communication, and it transmits the required signal of display and display control and receives the response signal from front display unit.

CAN COMMUNICATION

• AV control unit is connected by CAN communication, and it receives data signal from ECM and combination meter. It computes and displays fuel economy information value with the obtained information.
• The AV control unit, which has the vehicle setting function, transmits and receives data on vehicle setting condition via CAN communication with the BCM.
• AV control unit receives steering angle signal from steering angle sensor via CAN communication and performs control of predictive course line in rear view monitor image.

AUDIO FUNCTION

The audio system is equipped with the following functions.

FUNCTION
AM/FM radio
CD
Music Box (flash memory)
USB connection

Operating Signal

Audio system operation can be performed with 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 disk eject signal is transmitted to AV control unit by hardwire, when disk eject switch is operated.
• Operating signal is transmitted to AV control unit with steering switch signal when it is operated by steering switch.
• Operation status of audio is indicated at front display by RGB image signal, RGB area signal, and RGB image synchronizing signal.

AM/FM Radio Function

• AM/FM radio tuner is built into AV control unit.
• AM/FM radio wave is received by radio antenna, next it is amplified by antenna amp., and finally it is input to AV control unit.
• FM radio wave is received by FM sub antenna, and it is transmitted to the AV control unit directly.
• AV control unit outputs audio signal to each speaker.

CD Mode

• CD function is built into AV control unit.
• AV control unit outputs audio signal to each speaker when CD is inserted to AV control unit.
• For further information about CD function specifications, refer to "AV CONTROL UNIT ".

Music Box Mode

• Music CD data is stored on flash memory that is built into AV control unit, and it can be played.
• AV control unit outputs music (sound signal) that is stored on flash memory to each speaker.
• For further information about music box function specifications, refer to "AV CONTROL UNIT ".

USB Connection Function

• Connecting iPod® or USB memory allows the driver to play iPod® music files or USB memory-stored music files.
• Sound signals of music files stored in iPod® or USB memory is transmitted from the USB connector to the AV control unit.
• AV control unit outputs sound signal to each speaker.
• iPod® is recharged when connected to USB connector.
• Compliant USB memory and data recorded are limited.
  USB MEMORY SPECIFICATIONS
  
  

  USB memory	USB1.1
  File system	FAT16
  	FAT32

• Only files that meet the following conditions will be played.
  FILES REFERENCE CHART
  
  

  	Music file
  File format	"MP3", "WMA"
  File extension	".mp3", ".wma"
  Maximum file size	2GB

  NOTE:

  • iPod® is a trademark of Apple inc., registered in the U.S. and other countries.
  • Image signals cannot be received from iPod® or USB memory.
  • Use the enclosed USB harness when connecting iPod® to USB connector.

DVD PLAYBACK FUNCTION

• DVD is played by inserting DVD into the AV control unit.
• DVD image signals are transmitted to the front display unit, and DVD sound signals are transmitted to each speaker.
• DVD image signals and sound signals are transmitted to the rear display unit. The rear display unit transmits the sound signals to the headphone via infrared communication.
• For further information about DVD function specifications, refer to "AV CONTROL UNIT ".

MOBILE ENTERTAINMENT SYSTEM

Image and sound (DVD, USB memory-stored video data, and auxiliary input) played by AV control unit can be enjoyed in rear seat using rear display unit and headphone.

Operating Signal

• The mobile entertainment system can be controlled by one of the remote controller.
• It receives the operation signal of the remote controller by the remote control receiver built into rear display unit, and then transmits it to the AV control unit.

Headphone Sound

Headphone sound signals are transmitted to infrared communication between rear display unit and headphone.

Screen rear display

• Image signal output from AV control unit is transmitted to the rear display unit.
• The rear display unit receives the composite image signal (DVD, USB memory-stored video data, and auxiliary input) from the AV control unit.
• The rear display unit switches composite images through the communications with the AV control unit via AV communication.

BLUETOOTH™ HANDS-FREE PHONE FUNCTION

• TEL adapter unit is controlled with AV communication from AV control unit.
• When the cellular phone is connected to the TEL adapter unit via TEL antenna in Bluetooth™ communication, hands-free phone communication can be performed.
• Simply operating the steering switch without releasing hands from the steering wheel allows the driver to make a phone call or receive a phone call.
• When a Bluetooth™ communication compliant phone is registered to the TEL adapter unit, hands-free phone communication can be performed. Five units of Bluetooth™ communication devices can be registered to the TEL adapter unit.
• The content of the memory (telephone book) of the cellular phone can be recorded in the TEL adapter unit.
• TEL adapter unit has the on board self-diagnosis function. Refer to "ON BOARD DIAGNOSIS FUNCTION ".
  BLUETOOTH SPECIFICATIONS
  
  

  Bluetooth™ compliant profile	HFP1.5
  	Core specification 2.0 + EDR

When A Call Is Originated

• Spoken voice sound output from the microphone (microphone signal) is input to TEL adapter unit.
• TEL adapter unit outputs to cellular phone with Bluetooth™ communication as a TEL voice signal.
• Voice sound is then heard at the other party.

When Receiving A Call

• Voice sound is input to own cellular phone from the other party.
• TEL voice signal is input to TEL adapter unit by establishing Bluetooth™ communication from cellular phone, and the signal is output to front speaker.

AUXILIARY INPUT FUNCTION

• Image and sound can be output from an external device by connecting a device with front auxiliary input jacks.
• AUX image signals are transmitted to front and rear display unit via AV control unit
• AUX sound signals are transmitted to each unit as follows:
  • To each speaker via AV control unit.
  • To the rear display unit via AV control unit, and headphone sound signals are transmitted to infrared communication between rear display unit and headphone.

REAR VIEW MONITOR FUNCTION

Operation Description

• When the selector lever is shifted to the reverse position, the rear view monitor image is displayed.
• When the selector lever is shifted to any position other than the reverse position, the original image (the image displayed before the rear view monitor image) is displayed.

Camera Image Operation Principle

• The AV control unit that receives the reverse signal input supplies power to the rear view camera and gives input of image signal.
• The AV control unit outputs the rear view camera image to the front display when the reverse signal is inputted.
• The AV control unit generates the warning message, side distance guiding lines and the predictive course lines on the image from the rear view camera, and transmits the rear view camera image signal to the front display unit.

Side Distance Guide Lines and Predictive Course Lines Display Function at Rear View Monitor Display

• The side distance guide lines and the predictive course line that indicate the vehicle route according to the steering angle are displayed at the rear view monitor display to allow the driver to more easily judge distances between the vehicle and objects and help the driver back into a parking space.
• The AV control unit receives the steering angle signal from the steering angle sensor via CAN communication and draws a predictive course line according to the steering angle signal.
• When the predictive course line are displayed, the side distance guide lines are displayed translucently.
• The predictive course line are not displayed when the steering is in the neutral position.
• The predictive course line can be displayed/not displayed by selecting "Settings" - "Others" - "Camera" - "Predictive Course Lines"
  Fig 1: Display Side Distance Guide Lines And Predictive Course Lines Display Function

  Courtesy of NISSAN MOTOR CO., U.S.A.

Precautions for Side Distance Guide Lines and predictive course line Display on the Rear View Monitor Display Side distance guide lines and predictive course line on the display may be different from actual lines depending on vehicle conditions and road conditions.

Precautions for road conditions

• Since guide lines and predictive course line are drawn based on the road, a different distance may be displayed if a protruding block is present nearby.
  Fig 2: Precautions For Road Conditions

  Courtesy of NISSAN MOTOR CO., U.S.A.

Precautions for block

• Since guide lines and predictive course line are drawn based on the road, a different distance may be displayed if a protruding block is present nearby.
  Fig 3: Precautions For Block

  Courtesy of NISSAN MOTOR CO., U.S.A.

VEHICLE INFORMATION FUNCTION

• Status of audio, climate control system, fuel economy, maintenance and navigation are displayed.
• AV control unit displays the fuel consumption status while receiving data signal through CAN communication from ECM and combination meter.

Vehicle Setting Function

The AV control unit transmits and receives data signals via CAN communication with the BCM, allowing the following vehicle settings.

• To turn on the automatic interior room lamp (ON/OFF) when the door is unlocked
• To adjust the auto light sensitivity (+/-)
• To operate the intermittent wiper linked with the vehicle speed (ON/OFF)
• Vehicle setting initialization
  NOTE: The setting items vary depending on the vehicle specification

AUTO LIGHT ADJUSTMENT SYSTEM

When the light switch is in the 1st or 2nd position, the dimming of the display is judged according to a dimming signal transmitted from BCM to the AV control unit. Display illuminance is independent of vehicle exterior illuminance detected by the auto light detecting sensor even when the light switch is in 1st or 2nd position.