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Audio Visual, Navigation & Telephone System: Overview Nissan Quest III

Entertainment Systems 8 illustrations ~654 words

System Description

With the ignition switch in ACC or ON, power is supplied

  1. through 10A fuse [No. 4, located in the fuse block (J/B)]
  2. to audio unit terminal 10.

Ground is supplied through the case of the antenna amp.

When the radio switch is turned ON, antenna signal is supplied

  1. through audio unit terminal 5
  2. to the antenna amp. terminal 1.

Then the antenna amp. is activated.

The amplified radio signals are supplied to the audio unit through the antenna amp.

Refer to Owner's Manual for DVD entertainment system operating instructions.

Power is supplied at all times

  1. through 15A fuse [No. 22, located in the fuse block (J/B)]
  2. to DVD player terminal 16.

With the ignition switch in the ACC or ON position, power is supplied

  1. through 10A fuse [No. 4, located in the fuse block (J/B)]
  2. to DVD player terminal 15.

Power is also supplied

  1. from DVD player terminals 31 and 32
  2. to video monitor terminals 11 and 12.

Ground is supplied

  1. to DVD player terminal 22
  2. through body grounds B117 and B132.

Audio signals are supplied

  1. through DVD player terminals 1, 2, 3 and 4
  2. to audio unit terminals 34, 35, 36 and 37.

Video signals are supplied

  1. through DVD player terminals 23, 24, 28 and 29
  2. to front video monitor terminals 5, 6, 7 and 8 and rear video monitor (models with dual monitor system) terminals 5 and 8.

On dual monitor DVD entertainment systems, video signals are also supplied

  1. through DVD player terminals 25 and 30
  2. to rear video monitor terminals 6 and 7.

Scheme 1

Scheme 1: Schematic
Scheme 1: Schematic

CAN COMMUNICATION SYSTEM DESCRIPTION

Refer to , " CAN COMMUNICATION ".

Scheme 2

Scheme 2: Component Parts and Harness Connector Location
Scheme 2: Component Parts and Harness Connector Location

Scheme 3

Scheme 3: Schematic (With Monochrome Display Unit)
Scheme 3: Schematic (With Monochrome Display Unit)

Scheme 4

Scheme 4: Schematic (With Color Display Unit)
Scheme 4: Schematic (With Color Display Unit)

DESCRIPTION

  1. Diagnosis function consists of the self-diagnosis mode performed automatically.
  2. Self-diagnosis mode checks for connections between the units constituting this system, analyzes each individual unit at the same time, and displays the results on the LCD screen.
  1. Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/ADJUSTMENT mode operated manually.
  2. Self-diagnosis mode checks for connections between the units constituting this system, analyzes each individual unit at the same time, and displays the results on the LCD screen.
  3. CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and judgment by an operator (trouble that cannot be automatically judged by the system), to check/change the set value, and to display the History of Errors of the navigation system.

Note. Refer to NAVI System service information for system operation.

The navigation system periodically calculates the vehicle's current position according to the following three signals: Travel distance of the vehicle as determined by the vehicle speed sensor, turning angle of the vehicle as determined by the gyroscope (angular velocity sensor), and the direction of vehicle travel as determined by the GPS antenna (GPS information).

The current position of the vehicle is then identified by comparing the calculated vehicle position with map data read from the map DVDROM, which is stored in the DVD-ROM drive (map-matching), and indicated on the screen with a current-location mark.

Scheme 5

Scheme 5: System Description
Scheme 5: System Description

By comparing the vehicle position detection results found by the GPS and by map-matching, more accurate vehicle position data can be used.

The current vehicle position will be calculated by detecting the distance the vehicle moved from the previous calculation point and its direction.

Scheme 6

Scheme 6
Scheme 6

Refer to , " CAN COMMUNICATION ".

Scheme 7

Scheme 7: Component Parts Location
Scheme 7: Component Parts Location

Scheme 8

Scheme 8: Schematic
Scheme 8: Schematic
  1. Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/ADJUSTMENT mode operated manually.
  2. Self-diagnosis mode checks for connections between the units constituting this system, analyzes each individual unit at the same time, and displays the results on the LCD screen.
  3. CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and judgment by an operator (trouble that cannot be automatically judged by the system), to check/change the set value, and to display the History of Errors of the navigation system.

BASIC OPERATION

SymptomCauseRemedy
No image is shown.Display brightness adjustment is set fully to DARK side.Adjust the display brightness.
No guide sound is heard. Audio guide volume is too low or too high.Volume control is set to OFF, MIN or MAX.Adjust the audio guide volume.
Audio guidance is not available while the vehicle is driving on a dark green route.System is not malfunctioning.
Screen is too dark. Motion of the image is too slow.Temperature inside the vehicle is low.Wait until the temperature inside the vehicle reaches the proper temperature.
Small black or bright spots appear on the screen.Symptom peculiar to a liquid crystal display (display unit).System is not malfunction.

SYMPTOM CAUSE

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