NAVIGATION SYSTEM (for HDD) DVD Image Signal Circuit between Radio Receiver and Navigation ECU

DESCRIPTION

This circuit sends a DVD image signal from the radio receiver assembly to the display and navigation module display.

WIRING DIAGRAM

A01630BE20

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    1. Disconnect the J106 radio receiver assembly connector.

    2. Disconnect the J124 display and navigation module display connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J106-8 (NTSC) - J124-9 (VV+) Always Below 1 Ω
      J106-22 (GND) - J124-20 (VV-) Always Below 1 Ω
      J106-8 (NTSC) - Body ground Always 10 kΩ or higher
      J106-22 (GND) - Body ground Always 10 kΩ or higher
      J106-7 (SLD) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT RADIO RECEIVER ASSEMBLY (DVD IMAGE SIGNAL)


    1. A015YQKE15

      Reconnect the J106 radio receiver assembly connector.

    2. Check the waveform according to the table below.

    3. A015ZVKE10
      Text in Illustration
      *1

      Component with harness connected

      (Radio Receiver Assembly)
      *2 Synchronization Signal
      *3 Video Waveform

      Oscilloscope waveform

      Item Content
      Measurement terminal J106-8 (NTSC) - Body ground
      Measurement setting 200 mV/DIV., 10 μs/DIV.
      Condition DVD is played on multi-display

      Tech Tips

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


    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

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