Toyota RAV4 manuals

Toyota Sienna Service Manual: Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier

Toyota Sienna Service Manual / Audio / visual / Audio and visual system / Diagnostic trouble code chart / Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier

DESCRIPTION

This circuit sends a signal to the stereo component amplifier to mute noise. Because of that, the noise produced by changing the sound source ceases.

If there is an open in the circuit, noise can be heard from the speakers when changing the sound source.

If there is a short in the circuit, even though the stereo component amplifier is normal, no sound, or only an extremely small sound, can be produced.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT STEREO COMPONENT AMPLIFIER

INSPECT STEREO COMPONENT AMPLIFIER

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

Standard voltage

Standard voltage

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

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

  1. Disconnect the radio receiver connector R7 and stereo component amplifier connector S11.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 REPLACE STEREO COMPONENT AMPLIFIER

  1. Replace the stereo component amplifier and check if the audio system operates normally.

OK: The audio system operates normally.

REPLACE RADIO RECEIVER

Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
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 stereo component a ...

Mute Signal Circuit between Radio Receiver and Television Display Assembly
DESCRIPTION The radio receiver controls the volume according to the MUTE signal from the television display assembly. The MUTE signal is sent to reduce noise and a popping sound generated when ...

Other materials:

How to proceed with troubleshooting
HINT:  Use these procedures to troubleshoot the key reminder warning system.  The intelligent tester should be used in steps 3 and 5. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS 3 INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN) Use th ...

Initialization
1. RESET  Reset the power slide door system: The power slide door ECU records the fully open position of the power slide door in its memory and the power slide door fully opens and closes based on this memory. The power slide door cannot operate without this memory. In the case wh ...

Installation
1. INSTALL AIR CONDITIONING BLOWER ASSEMBLY (a) Install the air conditioning blower assembly with the 3 bolts. Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) NOTICE: Tighten the bolts in the order shown in the illustration to install the air conditioning blower assembly. 2. INSTALL AIR CONDITIO ...

В© 2011-2021 Copyright www.tsienna.net