Lexus NX: Poor Sound Quality in All Modes (Low Volume)
Lexus NX Service Manual / Audio & Visual & Telematics / Audio / Video / Audio And Visual System / Poor Sound Quality in All Modes (Low Volume)
PROCEDURE
| 1. | CHECK AUDIO SETTINGS |
(a) Set treble, middle and bass to the initial values and check that the sound is normal.
OK:
The sound returns to normal.
HINT:
Sound quality adjustment measures vary according to the type of amplifier.
| OK | .gif) | END |
|
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| 2. | COMPARE WITH ANOTHER VEHICLE OF SAME MODEL |
(a) Compare with another vehicle of the same model which is not malfunctioning to see if there is any difference in the sound quality.
OK:
No difference is found.
| OK | | END |
| NG | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
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READ NEXT:
"No GPS signal" mark is displayed
CAUTION / NOTICE / HINT NOTICE: 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
Voice Guidance does not Function
CAUTION / NOTICE / HINT NOTICE: 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
Voice is not Recognized
PROCEDURE 1. CHECK CONDITION (a) While paying attention to the condition of the spoken voice command, perform a voice recognition operation. OK: Voice command is recognized normally. HINT:
SEE MORE:
Microphone Circuit
DESCRIPTION
The radio receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.
Using this circuit, the DCM (telematics transceiver) sends power to the telephone microphone assembly, and the telephone microphone assem
VC Output Circuit
DESCRIPTION The ECM constantly generates 5 V power source voltage from the auxiliary battery voltages supplied to the +B (BATT) terminal to operate the microprocessor. The ECM also provides this power source voltage to the sensors through the VC output circuit. When the VC circuit has a short circu
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