| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Audio/Visual/Telematics | Section: Audio/Video | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000001XKE00QX |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DESCRIPTION (2008 LX570) | ||
|
Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier |
DESCRIPTION
This circuit sends a signal to the stereo component amplifier to mute noise. Therefore, the noise produced by changing the sound source ceases.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) |
|
(a) Disconnect the F1 receiver connector. |
(b) Disconnect the F18 amplifier connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F1-7 (MUTE) - F18-1 (MUTE) |
Always |
Below 1 Ω |
|
F1-7 (MUTE) - Body ground |
Always |
10 kΩ or higher |
|
|
2. |
CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY (OPERATION) |
(a) Replace the stereo component amplifier with a normal one and check if it operates normally
.
OK:
The audio system operates normally.
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