AUDIO AND VISUAL SYSTEM (w/o DVD Player) Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

• The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the radio and display receiver assembly via this circuit.

  The sound signal that has been sent is amplified by the radio and display receiver assembly and then is sent to the speakers.

  If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the radio and display receiver assembly or speakers.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)

   
   

   1. Disconnect the I155 radio and display receiver assembly connector.

   2. Disconnect the I146 No. 1 stereo jack adapter assembly connector.

   3. 

      Text in Illustration

      *a	Front view of wire harness connector (to Radio and Display Receiver Assembly)
      *b	Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)

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

      Standard Resistance

      Tester Connection Condition Specified Condition I155-25 (ADPG) - I146-9 (AUXO) Always Below 1 Ω I155-11 (AGND) - I146-10 (AGND) Always Below 1 Ω I155-26 (VAR+) - I146-6 (ARO) Always Below 1 Ω I155-28 (VAL+) - I146-7 (ALO) Always Below 1 Ω I155-27 (VA-) - I146-8 (ASGN) Always Below 1 Ω I155-25 (ADPG) - Body ground Always 10 kΩ or higher I155-11 (AGND) - Body ground Always 10 kΩ or higher I155-26 (VAR+) - Body ground Always 10 kΩ or higher I155-28 (VAL+) - Body ground Always 10 kΩ or higher I155-27 (VA-) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here