AUDIO AND VISUAL SYSTEM (w/o Multi-display) 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 receiver assembly through this circuit.

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

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

WIRING DIAGRAM

A019MSME01

INSPECTION PROCEDURE

PROCEDURE


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


    1. Disconnect the G44 No. 1 stereo jack adapter assembly connector.

    2. Disconnect the G9 and G52 radio receiver assembly connectors.

    3. A019P9TE75
      A019N46E88
      A019L5UE01

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G44-9 (AUXO) - G9-19 (ADPG) Always Below 1 Ω
      G44-6 (ARO) - G9-15 (VAR+) Always Below 1 Ω
      G44-7 (ALO) - G9-17 (VAL+) Always Below 1 Ω
      G44-8 (ASGN) - G9-16 (VA-) Always Below 1 Ω
      G44-10 (AGND) - G9-18 (AGND) Always Below 1 Ω
      G44-2 (UDO-) - G52-2 (US1-) Always Below 1 Ω
      G44-3 (UDO+) - G52-3 (US1+) Always Below 1 Ω
      G44-5 (UJSS) - G52-5 (USG1) Always Below 1 Ω
      G44-9 (AUXO) - Body ground Always 10 kΩ or higher
      G44-6 (ARO) - Body ground Always 10 kΩ or higher
      G44-7 (ALO) - Body ground Always 10 kΩ or higher
      G44-8 (ASGN) - Body ground Always 10 kΩ or higher
      G44-10 (AGND) - Body ground Always 10 kΩ or higher
      G44-2 (UDO-) - Body ground Always 10 kΩ or higher
      G44-3 (UDO+) - Body ground Always 10 kΩ or higher
      G44-5 (UJSS) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)
      *b

      Front view of wire harness connector

      (to Radio Receiver Assembly)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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