REAR SEAT ENTERTAINMENT SYSTEM Display Signal Circuit between Video Terminal and Television Display

DESCRIPTION

This is the display signal from the video (video adapter) terminal to the television display assembly.

WIRING DIAGRAM

B001DTRE01
*a Shielded
*b Video (VIdeo Adapter) Terminal
*c Television Display Assembly

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - VIDEO [VIDEO ADAPTER] TERMINAL)


    1. Disconnect the W14 television display assembly connector.

    2. Disconnect the T1 video (video adapter) terminal connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      W14-18 (ADPI) - T1-8 (ADPG) Always Below 1 Ω
      W14-24 (VD+) - T1-5 (VV+) Always Below 1 Ω
      W14-25 (VG) - T1-6 (VV-) Always Below 1 Ω
      W14-23 (SGN5) - Body ground Always 10 kΩ or higher
      W14-18 (ADPI) - Body ground Always 10 kΩ or higher
      W14-24 (VD+) - Body ground Always 10 kΩ or higher
      W14-25 (VG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK VIDEO (VIDEO ADAPTER) TERMINAL


    1. B001HKIE03
      Text in Illustration
      *a

      Component with harness connected

      (Video [Video Adapter] Terminal)

      Remove the video (video adapter) terminal connector still connected Click here.

    2. Using an oscilloscope, check the waveform.

      Measurement Condition
      Item Content
      Terminal No. (Symbol) T1-5 (VV+) - Body ground
      Tool Setting 0.2 V/DIV., 0.2 μs./DIV.
      Condition External device playing, VTR displayed
      OK
      Waveform is as shown in the illustration.

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPLACE VIDEO (VIDEO ADAPTER) TERMINAL Click here