Display Signal Circuit Between Video Terminal and Television Display

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

Display Signal Circuit between Video Terminal and Television Display

DESCRIPTION

This is the display signal circuit from the video 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 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) Measure the waveform according to the table below.
OK:





HINT: The waveform pattern may differ from that shown in the illustration below due to differences in oscilloscope setting. A normal video terminal operating condition can be determined if any waveform is output.




(c) Oscilloscope waveform
(1) Terminal: NTSC - Body ground
Setting: 200mV/DIV, 10 micro s/DIV
Condition: DVD display is ON.

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