Sound Signal Circuit between Multi-display Controller and Head-phone Terminal

AUDIO / VISUAL: REAR SEAT ENTERTAINMENT SYSTEM: Sound Signal Circuit between Multi-display Controller and Head-phone Terminal

Sound Signal Circuit between Multi-display Controller and Head-phone Terminal

DESCRIPTION

This is the sound signal circuit from the multi-display controller to the headphone terminal.
HINT: Only vehicles with a disc player have this circuit.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK REAR SEAT CONSOLE BOX




(a) Disconnect the R16 box 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 - REAR SEAT CONSOLE BOX)
OK -- REPLACE REAR SEAT CONSOLE BOX
2. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER - REAR SEAT CONSOLE BOX)




(a) Disconnect the R30 controller connector.
(b) Disconnect the R16 box 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