Rear Seat Entertainment System Sound Signal Circuit Between Video Terminal And Television Display

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - VIDEO [VIDEO ADAPTER] TERMINAL)

CHECK VIDEO (VIDEO ADAPTER) TERMINAL

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Disconnect the W14 television display assembly connector.
   

2. Disconnect the T1 video (video adapter) terminal connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   W14-18 (ADPI) - T1-8 (ADPG)	Always	Below 1 Ω
   W14-19 (SGN3) - T1-3 (VA-)	Always	Below 1 Ω
   W14-20 (L+) - T1-2 (VAL+)	Always	Below 1 Ω
   W14-21 (SNG6) - T1-7 (SG)	Always	Below 1 Ω
   W14-22 (R+) - T1-1 (VAR+)	Always	Below 1 Ω
   W14-18 (ADPI) - Body ground	Always	10 kΩ or higher
   W14-19 (SGN3) - Body ground	Always	10 kΩ or higher
   W14-20 (L+) - Body ground	Always	10 kΩ or higher
   W14-21 (SNG6) - Body ground	Always	10 kΩ or higher
   W14-22 (R+) - Body ground	Always	10 kΩ or higher

1. Remove the video (video adapter) terminal connector still connected (LandCruiser RM000003AWF04OX.html).
   

2. Using an oscilloscope, check the waveform between each terminal and the body ground according to the conditions as shown in the table below.
   

   Standard:

   Tester Connection	Condition	Specified Condition
   T1-1 (VAR+) - Body ground	External device playing, sound being produced	Waveform synchronized with sound is output
   T1-2 (VAL+) - Body ground

   Text in Illustration

   *a	Component with harness connected (Video [Video Adapter] Terminal)