AUDIO AND VISUAL SYSTEM > Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

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DESCRIPTION

The stereo jack adapter sends an external device sound signal to the radio receiver through this circuit.
The sound signal that has been sent is amplified by the radio receiver, 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 receiver or speakers.

WIRING DIAGRAM


E160795E04


INSPECTION PROCEDURE

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


    E176040E01

  1. Disconnect the D63 radio receiver assembly connector.

  1. Disconnect the D64 stereo jack adapter connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D63-19 (AUXI) - D64-4 (AUXO)
    		Always
    		Below 1 Ω
    D63-17 (ALI) - D64-1 (ALO)
    D63-15 (ARI) - D64-2 (ARO)
    D63-16 (ASGN) - D64-3 (ASGN)
    D63-18 (AGND) - D64-5 (AGND)
    D63-19 (AUXI) - Body ground
    		Always
    		10 kΩ or higher
    D63-17 (ALI) - Body ground
    D63-15 (ARI) - Body ground
    D63-16 (ASGN) - Body ground

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Radio Receiver Assembly)
    *2
    		Front view of wire harness connector
    (to Stereo Jack No. 1 Adapter Assembly)

  1. Reconnect the radio receiver assembly connector.

  1. Reconnect the stereo jack No. 1 adapter assembly connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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