RGB Synchronizing Signal Circuit

RGB SYNCHRONIZING SIGNAL CIRCUIT

Description

Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with
AV control unit.


Diagnosis Procedure

Regarding Wiring Diagram information, With Color Display Without Navigation System Bose Audio.

1. CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect display unit connector M141 and AV control unit connector M154.
3.Check continuity between display unit harness connector M141
(A) terminal 19 and AV control unit harness connector M154 (B)
terminal 41.





4.Check continuity between display unit harness connector M141
(A) terminal 19 and ground.





Are continuity results as specified?
YES- GO TO 2.
NO- Repair harness or connector.

2. CHECK RGB SYNCHRONIZING SIGNAL






1.Connect display unit connector M141 and AV control unit connector M154.
2.Turn ignition switch ON.
3.Check signal between display unit harness connector M141 terminal 19 and ground.





Are voltage readings as specified?
YES- Replace display unit. With Color Display.
NO- Replace AV control unit. With Color Display.