AUDIO AND VISUAL SYSTEM Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier

DESCRIPTION

The radio receiver sends a sound signal to the stereo component amplifier through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier, 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 or speakers.

WIRING DIAGRAM

A01612ZE03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER)


    1. A0160NZE03

      Disconnect the connectors from the radio receiver and stereo component amplifier.

    2. A0163BKE01

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-9 (L+) - P30-3 (L+) Always Below 1 Ω
      J66-19 (L-) - P30-2 (L-) Always Below 1 Ω
      J66-8 (R+) - P30-5 (R+) Always Below 1 Ω
      J66-18 (R-) - P30-4 (R-) Always Below 1 Ω
      J66-10 (SLD) - P30-6 (SLD) Always Below 1 Ω
      J66-9 (L+) - Body ground Always 10 kΩ or higher
      J66-19 (L-) - Body ground Always 10 kΩ or higher
      J66-8 (R+) - Body ground Always 10 kΩ or higher
      J66-18 (R-) - Body ground Always 10 kΩ or higher
      J66-10 (SLD) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here