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:
Windshield Defrosting and
Defogging
Set the mode selector dial to the
position.
Set the temperature control dial to the
desired position.
Set the fan control dial to the desired
speed.
If dehumidified heating is desired, turn
on the air conditioner.
WARNING
Do not defog the windshield using the
pos ...
Rear Door Quarter Glass Removal/Installation
1. Fully lower the rear door glass.
2. Disconnect the negative battery cable..
3. Remove the rear door trim..
4. Remove the service hole cover.
5. Remove the hole plug.
6. Remove the screw.
7. Remove the bolt A and B.
8. Remove the rear door glass guide.
9. Remove the pin ...
Spark Plug Inspection [Mzr 2.3 Disi Turbo]
Specification
Spark plug type
L3BD-18110, L3YD-18110
Plug Gap Inspection
CAUTION:
To avoid possible damage to the tip, do not adjust the plug gap.
To prevent damaging the tip, use a wire type plug gap gauge when inspecting
the plug gap.
1. Measure the spark p ...
