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:

Installation
HINT: Install the RH side by the same procedures with LH side. 1. INSTALL FRONT SPEED SENSOR LH (a) Install the speed sensor front LH with the bolt. Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) NOTICE: Keep the tip of the front speed sensor LH. (b) Install the sensor harness clamps with th ...

Locking and unlocking the back door
Entry function (vehicles with a smart key system) Carry the electronic key to enable this function. Press the unlock button to unlock all the doors. The door cannot be unlocked for 3 seconds after the door is locked. Lock the back door again when you leave the vehicle. The back ...

Room light assembly
ON-VEHICLE INSPECTION 1. ROOM LIGHT ASSEMBLY NO.2  Check that the resistance exists between the terminals. Resistance: Below 1 Ω 2. INTERIOR DOME LIGHT SWITCH ASSEMBLY  Check that there is resistance between the terminals at each switch position as shown in the cha ...

В© 2011-2024 Copyright www.tsienna.net