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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1235 (Audio Visual, Navigation & Telephone System) >> Navigation System >> Color of RGB Image is Not Proper (All Screen Looks Bluish)

Color of RGB Image is Not Proper (All Screen Looks Bluish)

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK RGB HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect display control unit connector M95 and display unit connector M93.
    3. Check continuity between display control unit and display unit.
    4. Check continuity between display control unit and ground.
    • When the screen looks bluish. 
      Fig 1: Display Unit Connector M95 And Display Control Unit Connector M93 Terminals Continuity Specifications
      G02387245Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 2: Display Control Unit Connector M95 Terminals And Ground Continuity Specifications
      G02387246Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 3: Checking Continuity Between Display Control Unit And Display Unit
      G02387247Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK: GO TO 2.
    • NG: Repair harness or connector.
  2. CHECK RGB SIGNAL 
    1. Connect display control unit connector and display unit connector.
    2. Turn ignition switch ON.
    3. Display "Color bar" by "CONFIRMATION/ADJUSTMENT" mode.
    4. Check the following with CONSULT-II or oscilloscope.
    • When the screen looks bluish. 

      Voltage signal between display control unit connector M95 terminal 50 (R/L) and 47.

      Fig 4: Checking Voltage Signal Between Display Control Unit Connector M95 Terminal 50 (R/L) And 47
      G02387248Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG