Composite Image Signal Circuit

COMPOSITE IMAGE SIGNAL CIRCUIT


Description

AV control unit that inputs the camera image signal and AUX image signal transmits the composite image signal to the display unit.




COMPOSITE IMAGE SIGNAL CIRCUIT


Diagnosis Procedure

1.CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT)
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector and display unit connector.
3. Check continuity between AV control unit harness connector and display unit harness connector.





4. Check continuity between AV control unit harness connector and ground.





Is inspection result normal?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO DISPLAY UNIT)
1. Connect AV control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between AV control unit harness connector and ground.





Is inspection result normal?
YES - Replace display unit.
NO - Replace AV control unit.