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

for Preparation Click here


DESCRIPTION

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

WIRING DIAGRAM


E210162E02


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR

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

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

  1. 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


    E210158E05

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



    E210164E05

  1. Disconnect the DC1 multi-media module wire connector.

  1. 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)


    E176669E37

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

  1. Check the waveform according to the table below.



    E181025E30

  1. 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

    HINT:
    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.

    Text in Illustration 
    *a
    		Component with harness connected
    (Display and Navigation Module Display)
    *b
    		Synchronization Signal
    *c
    		Video Waveform



NG
REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY (Click here)
OK

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