NAVIGATION SYSTEM(for Navigation Receiver Type) 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 via this circuit.

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

WIRING DIAGRAM

Figure 1. w/ Video Function

B004ONKE24
*1 (Shielded)
*2 No. 1 Stereo Jack Adapter Assembly
*3 Navigation Receiver Assembly

Figure 2. w/o Video Function

B004ONKE25
*a (Shielded)
*b No. 1 Stereo Jack Adapter Assembly
*c Navigation Receiver Assembly

PROCEDURE


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


    1. Disconnect the F92 navigation receiver assembly connector.

    2. Disconnect the F38 No. 1 stereo jack adapter assembly connector (w/ Video Function).

      Disconnect the F39 No. 1 stereo jack adapter assembly connector (w/o Video Function).

    3. Figure 3. w/ Video Function

      B004PQLC01
      *a

      Front view of wire harness connector

      (to Navigation Receiver Assembly)
      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

      Figure 4. w/o Video Function

      B004QI5C04
      *a

      Front view of wire harness connector

      (to Navigation Receiver Assembly)
      *b

      Front view of wire harness connector

      (to No. 1 Stereo Jack Adapter Assembly)

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

      Standard Resistance (w/ Video Function)
      Tester Connection Condition Specified Condition
      F92-25 (ADPG) - F38-9 (ADPG) Always Below 1 Ω
      F92-11 (AGND) - F38-11 (AGND) Always Below 1 Ω
      F92-26 (VAR+) - F38-6 (VAR+) Always Below 1 Ω
      F92-28 (VAL+) - F38-7 (VAL+) Always Below 1 Ω
      F92-27 (VA-) - F38-8 (VA-) Always Below 1 Ω
      F92-25 (ADPG) or F38-9 (ADPG) - Body ground Always 10 kΩ or higher
      F92-11 (AGND) or F38-11 (AGND) - Body ground Always 10 kΩ or higher
      F92-26 (VAR+) or F38-6 (VAR+) - Body ground Always 10 kΩ or higher
      F92-28 (VAL+) or F38-7 (VAL+) - Body ground Always 10 kΩ or higher
      F92-27 (VA-) or F38-8 (VA-) - Body ground Always 10 kΩ or higher
      Standard Resistance (w/o Video Function)
      Tester Connection Condition Specified Condition
      F92-25 (ADPG) - F39-8 (ADPG) Always Below 1 Ω
      F92-11 (AGND) - F39-9 (AGND) Always Below 1 Ω
      F92-26 (VAR+) - F39-5 (VAR+) Always Below 1 Ω
      F92-28 (VAL+) - F39-6 (VAL+) Always Below 1 Ω
      F92-27 (VA-) - F39-7 (VA-) Always Below 1 Ω
      F92-25 (ADPG) or F39-8 (ADPG) - Body ground Always 10 kΩ or higher
      F92-11 (AGND) or F39-9 (AGND) - Body ground Always 10 kΩ or higher
      F92-26 (VAR+) or F39-5 (VAR+) - Body ground Always 10 kΩ or higher
      F92-28 (VAL+) or F39-6 (VAL+) - Body ground Always 10 kΩ or higher
      F92-27 (VA-) or F39-7 (VA-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR