Display Signal Circuit Between Television Display Assembly and Navigation Receiver Assembly

NAVIGATION: NAVIGATION SYSTEM: Display Signal Circuit between Television Display Assembly and Navigation Receiver Assembly

Display Signal Circuit between Television Display Assembly and Navigation Receiver Assembly

DESCRIPTION

This circuit sends a DVD image signal from the television display assembly to the navigation receiver assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - TELEVISION DISPLAY ASSEMBLY)





(a) Disconnect navigation receiver assembly connector E6 and television display assembly connector Q13.





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






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT TELEVISION DISPLAY ASSEMBLY





(a) Reconnect television display assembly connector Q13.
(b) Measure the waveform according to the table below.
OK:





HINT: The waveform pattern may differ from that shown in the illustration below due to differences in the oscilloscope setting. A normal television display assembly operating condition can be determined if any waveform is output.





(c) Oscilloscope waveform
(1) Terminal: Q13-11 (NTS1) - Body ground
Setting: 200 mV/DIV., 10 micro s/DIV.
Condition: DVD display is ON.
NG -- REPLACE TELEVISION DISPLAY ASSEMBLY
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE