Sound Signal Circuit between Multi-display Controller and Television Display

AUDIO / VISUAL: REAR SEAT ENTERTAINMENT SYSTEM: Sound Signal Circuit between Multi-display Controller and Television Display

Sound Signal Circuit between Multi-display Controller and Television Display

DESCRIPTION

This is the sound signal circuit from the multi-display controller to the television display.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK TELEVISION DISPLAY ASSEMBLY




(a) Disconnect the R19 display 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:






NG -- CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER - TELEVISION DISPLAY ASSEMBLY)
OK -- REPLACE TELEVISION DISPLAY ASSEMBLY
2. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER - TELEVISION DISPLAY ASSEMBLY)




(a) Disconnect the R33 controller connector.
(b) Disconnect the R19 display connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MULTI-DISPLAY CONTROLLER