AUDIO AMPLIFIER [WITH CENTER DISPLAY]
2016 – MX-5 – Body and Accessories
AUDIO AMPLIFIER [WITH CENTER DISPLAY]
Purpose, Function
-
The audio signal (analog voltage waveform) output from the unit equipped on the vehicle is converted into a digital pulse. The converted digital pulse signal is amplified, converted to an analog signal again, and sent to the speakers.
Construction
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The audio amplifier is located in the side shelf (RH).
Terminal Layout and Signal
|
Terminal |
Signal |
|
|
|
1A |
— |
|
1B |
— |
|
|
1C |
— |
|
|
1D |
— |
|
|
1E |
Front speaker input LH (-) |
|
|
1F |
Front speaker input LH (+) |
|
|
1G |
Front speaker input RH (-) |
|
|
1H |
Front speaker input RH (+) |
|
|
1I |
Rear speaker input LH (-) |
|
|
1J |
Rear speaker input LH (+) |
|
|
1K |
Rear speaker input RH (-) |
|
|
1L |
Rear speaker input RH (+) |
|
|
1M |
— |
|
|
1N |
— |
|
|
1O |
— |
|
|
1P |
— |
|
|
|
2A |
— |
|
2B |
— |
|
|
2C |
Passenger-side headrest speaker output RH (+) |
|
|
2D |
Audio amplifier control |
|
|
2E |
Passenger-side headrest speaker output RH (-) |
|
|
2F |
Top lock switch input |
|
|
2G |
Passenger-side headrest speaker output LH (+) |
|
|
2H |
Pulse width modulation (PWM) control |
|
|
2I |
Passenger-side headrest speaker output LH (-) |
|
|
2J |
— |
|
|
2K |
Driver-side headrest speaker output RH (-) |
|
|
2L |
HS-CAN_H |
|
|
2M |
Driver-side headrest speaker output RH (+) |
|
|
2N |
HS-CAN_L |
|
|
2O |
Driver-side headrest speaker output LH (+) |
|
|
2P |
Driver-side headrest speaker output LH (-) |
|
|
|
3A |
B+ |
|
3B |
Ground |
|
|
3C |
Tweeter output RH (+) |
|
|
3D |
Tweeter output RH (-) |
|
|
3E |
Woofer output (+) |
|
|
3F |
Woofer output (-) |
|
|
3G |
Tweeter output LH (+) |
|
|
3H |
Tweeter output LH (-) |
|
Operation
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The audio amplifier amplifies the audio signal sent (1) from the tuner and amp unit (TAU) and sends (2) it to the speakers.
-
The speakers produce (3) audio based on the audio signal sent from the TAU.
Fail-safe
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Not applicable