Mute Signal Circuit between Navigation Receiver Assembly and Television Display Assembly

AUDIO / VIDEO: REAR SEAT ENTERTAINMENT SYSTEM: Mute Signal Circuit between Navigation Receiver Assembly and Television Display Assembly

Mute Signal Circuit between Navigation Receiver Assembly and Television Display Assembly

DESCRIPTION

The navigation receiver assembly controls the volume according to the mute signal the television display assembly.
The mute signal is sent to reduce noise and popping sound generated switching the mode, etc.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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





(a) Disconnect the U2 television display assembly connector.
(b) Disconnect the I25 navigation receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(d) Reconnect the television display assembly connector.
(e) Reconnect the navigation receiver assembly connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. INSPECT TELEVISION DISPLAY ASSEMBLY





(a) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPLACE TELEVISION DISPLAY ASSEMBLY
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE