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Home >> Lexus >> 2012 >> IS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio Entertainment System (W/O Navigation) (Multi-Display) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/o Navigation System with Multi-display) >> Circuit Tests >> DVD Image Signal Circuit between Radio Receiver and Multi-display >> Procedure

DVD Image Signal Circuit between Radio Receiver and Multi-display: Procedure

  1. CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - RADIO RECEIVER ASSEMBLY) 
    1. Disconnect the radio receiver assembly connector.
    2. Disconnect the 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) - J102-9 (VV+) Always Below 1 Ω
      J106-22 (GND) - J102-20 (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: Go to next step 

  2. INSPECT RADIO RECEIVER ASSEMBLY 
    1. Reconnect the radio receiver assembly connector.
      Fig 1: Radio Receiver Assembly Connector
      GTY394512Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the waveform according to the table below.
      Fig 2: Waveform
      GTY395143Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      OSCILLOSCOPE WAVEFORM

      Item Content
      Measurement terminal J106-8 (NTSC) - 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 radio receiver assembly to the display and navigation module display, but the synchronization signal does not change.

      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Radio Receiver Assembly)
      *b Synchronization Signal
      *c Video Waveform

    NG → See step   3 

    OK → See step   4 

  3. REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL 
  4. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE