Mazda 3 Service Manual: Audio Unit
NOTE:
-
“iPod” is a registered trademark of Apple Inc. in the United States and other countries.
Purpose
-
The audio unit controls the CD, radio, exterior input devices (AUX/USB/iPod) and the display.
Function
-
Records the following items which the user has set.
|
Item |
Specification |
|
|
Preset memory |
AM |
6 |
|
FM1 |
6 |
|
|
FM2 |
6 |
|
|
SIRIUS (SAT1) |
6 |
|
|
SIRIUS (SAT2) |
6 |
|
|
SIRIUS (SAT3) |
6 |
|
-
The imbedded touch panel type display in the audio unit displays music information for CD and radio, and it also displays back camera images and the navigation screen.
-
The audio unit has the following functions:
USB/iPod applicable
-
A USB device such as USB memory or an iPod connected to the auxiliary jack/USB port can be controlled by the audio unit.
Specification
|
Item |
Specification |
||
|
Rated voltage |
(V) |
12 |
|
|
Frequency range |
AM |
(kHz) |
531—1602 |
|
FM |
(MHz) |
87.75—107.9 |
|
|
Amplifier maximum output |
(W) |
240.5 (external audio amplifier) |
|
|
Output impedance |
(ohm) |
4 |
|
|
Display |
Size |
(inches) |
480×272 (5.8) |
|
Type |
TFT *(Thin Film Transistor): Full-color |
||
* Short for Thin Film Transistor Used a lot with color LCDs.
Construction
-
An audio unit with AM/FM tuner/MP3/WMA (Windows Media Audio)/AAC (Advanced Audio Coding) applicable CD player is assembled in the audio panel.
Terminal layout and signal
Audio unit
|
Terminal |
Signal |
|
|
|
1A |
Front door speaker LH (+) |
|
1B |
B+ |
|
|
1C |
Front door speaker LH (-) |
|
|
1D |
Front door speaker RH (+) |
|
|
1E |
TNS (+) |
|
|
1F |
Front door speaker RH (-) |
|
|
1G |
TNS (–) |
|
|
1H |
Steering switch3 |
|
|
1I |
Vehicle speed signal |
|
|
1J |
AMP control |
|
|
1K |
— |
|
|
1L |
— |
|
|
1M |
R position signal |
|
|
1N |
Steering switch 1 |
|
|
1O |
CAN_H |
|
|
1P |
Steering switch 2 |
|
|
1Q |
CAN_L |
|
|
1R |
ACC |
|
|
1S |
Rear door speaker LH (+) |
|
|
1T |
AudioPilot®2 |
|
|
1U |
Rear door speaker LH (-) |
|
|
1V |
Rear door speaker RH (+) |
|
|
1W |
Power ground |
|
|
1X |
Rear door speaker RH (-) |
|
|
|
4A |
Bluetooth voice input RH (+) |
|
4B |
Bluetooth voice input RH (-) |
|
|
4C |
Bluetooth voice input LH (+) |
|
|
4D |
Bluetooth voice input LH (-) |
|
|
4E |
Audio voice input RH (+) |
|
|
4F |
Audio voice input RH (-) |
|
|
4G |
Audio voice input LH (+) |
|
|
4H |
Audio voice input LH (-) |
|
|
4I |
HS-CAN (+) |
|
|
4J |
HS-CAN (-) |
|
|
4L |
Microphone voice input (+) |
|
|
4N |
Microphone voice input (-) |
|
|
4P |
Microphone ground |
|
|
4R |
Microphone power supply |
|
|
4T |
Microphone detect |
|
|
4V |
— |
|
|
4W |
AUX detect |
|
|
4X |
AUX signal LH, RH (-) |
|
|
4Y |
AUX signal RH (+) |
|
|
4Z |
AUX signal LH (+) |
|
|
4AA |
— |
|
|
4AB |
— |
|
|
4AC |
— |
|
|
4AD |
— |
|
|
|
5A |
USB power supply |
|
5B |
USB data (+) |
|
|
5C |
USB power ground |
|
|
5D |
USB data (-) |
|
Antenna feeder connector
|
Terminal |
Signal |
|
|
|
3A |
ANT CONT |
|
3B |
Antenna |
|
Switch location
|
No. |
Switch name |
Function |
|
1 |
EJECT switch |
Ejects CD. |
|
2 |
AUDIO switch |
Switches to audio screen. |
|
3 |
PHONE switch |
Switches to Bucktooth dial screen. |
|
4 |
NAV switch |
Switches to navigation screen. |
|
5 |
POWER/VOLUME switch |
Audio power on/off and volume adjustment are possible. |
|
6 |
SETUP switch |
Switches to setting screen. |
|
7 |
SEEK/TRACK switch (up) |
|
|
8 |
SEEK/TRACK switch (down) |
|
|
9 |
TUNE/FILE AUDIO CONT switch |
|
Operation
-
For the audio unit operation, refer to the AUDIO SYSTEM.
Fail-safe
-
Function not equipped.
Audio System
NOTE:
“iPod” is a registered trademark of Apple Inc. in the United States and other
countries.
Outline
An Auxiliary jack/USB port unit has been adopted which can connect to com ...
Audio Unit Disassembly/Assembly
CAUTION:
When disassembling the audio unit, it could get scratched if it is placed
directly on the ground. When disassembling the audio unit, spread a soft cloth
underneath to perform th ...
Other materials:
Input/Turbine Speed Sensor Inspection [FS5 A EL]
CAUTION:
Water or foreign objects entering the connector can cause a poor connection
or corrosion. Be sure not to drop water or foreign objects on the connector
when disconnecting it.
On-Vehicle Inspection
1. Perform the following procedures.
a. Remove the battery cover..
b. ...
Electric Variable Valve Timing Actuator Inspection [Skyactiv G 2.0]
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
Do not disassemble the electric variable valve timing actuator because it
is a precision unit.
1. Remove the battery cover..
2. Disconnect the ne ...
Interior Light Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Insert a tape-wrapped fastener remover into the service hole and pry with
the screwdriver in the direction shown by the arrow to remove the lens.
3. Remove the interior light bulb.
4. Install in the reverse order of removal. ...
