NAVIGATION SYSTEM Display Signal Circuit between Multi-display and Radio Receiver

DESCRIPTION

This is the DVD display signal circuit from the radio receiver to the multi-display.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - MULTI-DISPLAY)

   
   

   1. 

      Disconnect the multi-display connector and radio receiver connector.

   2. 

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

      Standard Resistance
      Tester Connection Condition Specified Condition J62-2 (GND) - J52-4 (SGD1) Always Below 1 Ω J62-1 (NTSC) - J52-1 (NTSC) Always Below 1 Ω J62-3 (SLD) - J52-5 (SGND) Always Below 1 Ω J62-1 (NTSC) - Body ground Always 10 kΩ or higher J62-2 (GND) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

2. INSPECT RADIO RECEIVER (OUTPUT SIGNAL)

   
   

   1. 

      Reconnect the radio receiver connector.

   2. 

      Measure the waveform according to the table below.

      OK
      Tester Connection Condition Specified Condition J52-1 (NTSC) - Body ground DVD display is ON A waveform synchronized with display signals is output

      Tech Tips

      The waveform pattern may differ from that shown in the illustration due to differences in oscilloscope settings. A normal radio receiver operating condition can be determined if any waveform is output.

      Oscilloscope wave

      Terminal: J52-1 (NTSC) - Body ground

      Setting: 200 mV/DIV. 10 μs/DIV.

      Condition: DVD display is on.

   
   

   NG

   REPLACE RADIO RECEIVER Click here

   OK

   PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here