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Display Signal Circuit between Television Display Assembly and Navigation Receiver Assembly





AUDIO / VIDEO: REAR SEAT ENTERTAINMENT 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 is the display signal circuit from the television display assembly to the navigation receiver assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK NAVIGATION RECEIVER ASSEMBLY

(a) Disconnect the D64 navigation receiver assembly connector.





(b) Using an oscilloscope, check the signal waveform between each terminal and the body ground according to the conditions, as shown in the chart below.

Signal Waveform (Reference)





OK:

Waveform is as shown in the illustration.

Text in Illustration





NG -- CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - TELEVISION DISPLAY)

OK -- REPLACE NAVIGATION RECEIVER ASSEMBLY Removal

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

(a) Disconnect the D64 navigation receiver assembly connector.

(b) Disconnect the U1 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 -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table
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