Sound Signal Circuit Between Video Terminal and Television Display

AUDIO / VISUAL: REAR SEAT ENTERTAINMENT SYSTEM: Sound Signal Circuit between Video Terminal and Television Display

Sound Signal Circuit between Video Terminal and Television Display

DESCRIPTION

This is the sound signal circuit from the video (video adapter) terminal to the television display assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - VIDEO TERMINAL)




(a) Disconnect the connectors from the video (video adapter) terminal and television display assembly.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT VIDEO TERMINAL




(a) Reconnect the video (video adapter) terminal connector.
(b) Using an oscilloscope, check the signal waveform between each terminal and body ground according to the conditions in the table below.
HINT: An external device system is playing (when the video (video adapter) terminal is used).

Signal waveform:






NG -- REPLACE VIDEO TERMINAL
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE