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 assembly.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR

   
   

   1. 

      Disconnect the display and navigation module display connector.

   2. 

      Disconnect the multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition G5-10 (NTSF) - G2-4 (NTSC) Always Below 1 Ω G5-21 (SGD1) - G2-16 (SG) Always Below 1 Ω G5-10 (NTSF) - Body ground Always 10 kΩ or higher G5-21 (SGD1) - Body ground Always 10 kΩ or higher G5-22 (SLD1) - Body ground Always 10 kΩ or higher

      Text in Illustration

      *1	Front view of wire harness connector (to Display and Navigation Module Display)
      *2	Front view of wire harness connector (to Multi-display Assembly)

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

2. INSPECT DISPLAY AND NAVIGATION MODULE DISPLAY

   
   

   1. 

      Reconnect the display and navigation module display connector.

   2. 

      Text in Illustration

      *1	Component with harness connected (Display and Navigation Module Display)
      *2	Synchronization Signal
      *3	Video Waveform

      Measure the waveform according to the table below.

      Oscilloscope waveform

      Item	Content
      Measurement terminal	G5-10 (NTSF) - Body ground
      Measurement setting	200 mV/DIV., 10 μs/DIV.
      Condition	DVD display is ON

      Note

      The video waveform changes according to the image output from the display and navigation module display to the multi-display assembly, 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