Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

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- Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter

DESCRIPTION

The stereo jack adapter sends the sound signal from an external device to the radio receiver through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier*1 or 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 stereo component amplifier*1, radio receiver or speakers.

* *1: for 13 Speakers

WIRING DIAGRAM

1. w/o USB Audio System





2. w/ USB Audio System





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER)

(a) Disconnect the stereo jack adapter and radio receiver connectors.





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

Standard Resistance:

w/o USB Audio System

w/o USB Audio System:

w/ USB Audio System

w/ USB Audio System:

*1: for 6 Speakers

*2: for 13 Speakers

Text in Illustration

Text in Illustration:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table