AUDIO AND VISUAL SYSTEM 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 multi-media module receiver assembly through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier assembly or multi-media module 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 stereo component amplifier assembly, multi-media module receiver assembly or speakers.

WIRING DIAGRAM

A01EQ6TE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY)


    1. Disconnect the F77 multi-media module receiver assembly connector.

    2. Disconnect the k1 No. 1 stereo jack adapter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F77-16 (ADPG) - k1-8 (AUXO) Always Below 1 Ω
      F77-7 (VAR+) - k1-5 (ARO) Always Below 1 Ω
      F77-8 (VAL+) - k1-6 (ALO) Always Below 1 Ω
      F77-15 (VA-) - k1-7 (ASGN) Always Below 1 Ω
      F77-5 (AGND) - k1-9 (AGND) Always Below 1 Ω
      F77-16 (ADPG) - Body ground Always 10 kΩ or higher
      F77-7 (VAR+) - Body ground Always 10 kΩ or higher
      F77-8 (VAL+) - Body ground Always 10 kΩ or higher
      F77-15 (VA-) - Body ground Always 10 kΩ or higher
      F77-5 (AGND) - 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