Sound Signal Circuit Between Navigation Receiver Assembly and Stereo Jack Adapter

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter
- Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

DESCRIPTION

The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the navigation receiver assembly through this circuit.

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

WIRING DIAGRAM

1. w/ USB Audio System





2. w/o USB Audio System





INSPECTION PROCEDURE

PROCEDURE

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

(a) Disconnect the L41 navigation receiver assembly connector.

(b) Disconnect the z20 No. 1 stereo jack adapter assembly connector (w/ USB Audio System).





(c) Disconnect the z19 No. 1 stereo jack adapter assembly connector (w/o USB Audio System).

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

Standard Resistance:

w/ USB Audio System





w/o USB Audio System





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures