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 the E25 navigation receiver assembly connector.

(b) Disconnect the Q13 television display assembly connector.

(c) 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 the Q13 television display assembly connector.





(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









NOTICE:
The video waveform changes according to the image output from television display assembly to navigation receiver assembly, but the synchronization signal does not change.

Text in Illustration





NG -- REPLACE TELEVISION DISPLAY ASSEMBLY Removal

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures