Lexus ES: Sound Quality is Bad Only when CD is Played (Volume is Too Low)
Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Audio / Video / Audio And Visual System (for Hv Model) / Sound Quality is Bad Only when CD is Played (Volume is Too Low)
CAUTION / NOTICE / HINT
NOTICE:
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Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
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When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC may be stored.
- The radio receiver assembly may not operate normally.
PROCEDURE
| 1. | REPLACE CD AND RECHECK |
(a) Replace the CD with a new or known good one and check that the malfunction disappears.
OK:
Malfunction disappears.
| OK |  | END |
|
| 2. | CHECK NOISE CONDITION |
(a) Check that noise is output from the speakers when a disc is inserted and is being read.
OK:
Noise is output.
| OK | | REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY |
| NG | | REPLACE RADIO RECEIVER ASSEMBLY |
READ NEXT:
Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier
DESCRIPTION The radio receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit. The sound signal that has been sent is amplified by the stereo component ampli
Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the radio receiver assembly via this circuit. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS AND
Speaker Circuit
DESCRIPTION If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers. Thus sound cannot be heard from the speakers even if there is
SEE MORE:
Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL FRONT NO. 4 SPEAKER ASSEMBLY (for 17 Speakers) NOTICE: Do not touch the speaker cone. (a) Engage the 2 guides to temporarily install
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of
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