Sound Signal Circuit between Disc Player Changer and Television Display Assembly

AUDIO / VIDEO: REAR SEAT ENTERTAINMENT SYSTEM: Sound Signal Circuit between Disc Player Changer and Television Display Assembly
- Sound Signal Circuit between Disc Player Changer and Television Display Assembly

DESCRIPTION

This is the sound signal circuit from the disc player assembly to the television display assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK TELEVISION DISPLAY ASSEMBLY

(a) Disconnect the U1 television display assembly 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:





Text in Illustration





NG -- CHECK HARNESS AND CONNECTOR (DISC PLAYER - TELEVISION DISPLAY)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

2. CHECK HARNESS AND CONNECTOR (DISC PLAYER - TELEVISION DISPLAY)

(a) Disconnect the D70 disc player assembly connector.

(b) Disconnect the U1 television display assembly 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 DISC PLAYER ASSEMBLY Removal