NAVIGATION SYSTEM (for DVD) DVD Image Signal Circuit between Navigation ECU and Multi-display

DESCRIPTION

This circuit sends a DVD image signal from the display and navigation module display to the multi-display.

WIRING DIAGRAM

A003W2JE02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    1. Disconnect the H61 display and navigation module display connector.

    2. Disconnect the H20 multi-media module wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H61-10 (NTSF) - H20-2 (NTS1) Always Below 1 Ω
      H61-21 (SGD1) - H20-7 (SGN1) Always Below 1 Ω
      H61-10 (NTSF) - Body ground Always 10 kΩ or higher
      H61-21 (SGD1) - Body ground Always 10 kΩ or higher
      H61-22 (SLD1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT MULTI-MEDIA MODULE WIRE


    1. A003XI8E05

      Disconnect the H20 multi-media module wire connector.

    2. A003VTLE05

      Disconnect the DC1 multi-media module wire connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H20-2 (NTS1) - DC1-4 (NTS1) Always Below 1 Ω
      H20-7 (SGN1) - DC1-16 (SGN1) Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Multi-media Module Wire)

    NG

    REPLACE MULTI-MEDIA MODULE WIRE Click here

    OK

  3. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY (DVD IMAGE SIGNAL)


    1. A003WJ9E37

      Reconnect the H61 display and navigation module display connector.

    2. Check the waveform according to the table below.

    3. A003YNAE30
      Text in Illustration
      *a

      Component with harness connected

      (Display and Navigation Module Display)
      *b Synchronization Signal
      *c Video Waveform

      Oscilloscope waveform

      Item Content
      Measurement terminal H61-10 (NTSF) - Body ground
      Measurement setting 200 mV/DIV., 50 μs/DIV.
      Condition DVD is played on multi-display

      Tech Tips

      The video waveform changes according to the image output from the display and navigation module display to the multi-display, but the synchronization signal does not change.


    NG

    REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Click here

    OK

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