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Home >> Lexus >> 2011 >> CT 200h L4-1.8L (2ZR-FXE) Hybrid >> Repair and Diagnosis >> Accessories and Optional Equipment >> Navigation System >> Testing and Inspection >> Component Tests and General Diagnostics >> Navigation System (For HDD) >> DVD Image Signal Circuit Between Navigation ECU and Multi-Display
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DVD Image Signal Circuit Between Navigation ECU and Multi-Display





NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HDD): DVD Image Signal Circuit between Navigation ECU and Multi-display
- DVD Image Signal Circuit between Navigation ECU and Multi-display

DESCRIPTION

This circuit sends a DVD image signal from the navigation computer sub-assembly to the multi-display.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR

(a) Disconnect the H61 navigation computer sub-assembly connector.

(b) Disconnect the H20 multi-media module wire 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 MULTI-MEDIA MODULE WIRE

(a) Disconnect the H20 multi-media module wire connector.





(b) Disconnect the DC1 multi-media module wire connector.





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

Standard Resistance:





Text in Illustration





NG -- REPLACE MULTI-MEDIA MODULE WIRE Disassembly
OK -- Continue to next step.

3. INSPECT NAVIGATION COMPUTER SUB-ASSEMBLY (DVD IMAGE SIGNAL)

(a) Reconnect the H61 navigation computer sub-assembly connector.





(b) Check the waveform according to the table below.

(c) Oscilloscope waveform









HINT
The video waveform changes according to the image output from the navigation computer sub-assembly to the multi-display, but the synchronization signal does not change.

Text in Illustration





NG -- REPLACE NAVIGATION COMPUTER SUB-ASSEMBLY Removal

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table
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