AUDIO AMPLIFIER


id092000011200


Purpose

•  To ensure input voltage (5.5 V or more) to the DC-DC converter when the engine is restarted by the i-stop control, current control has been added to the audio amplifier.

Function

•  When the audio amplifier receives a boost request signal from the PCM, the output current to the speaker is controlled to 10A or less.

Construction

•  Positioned under the front seat (RH).
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Terminal Layout and Signal

L.H.D.

Terminal

Signal

1A
AMP control (SW B+)
1B
Vehicle speed signal
1C
Front door speaker input LH (-)
1D
Front door speaker input LH (+)
1E
Front door speaker input RH (-)
1F
Front door speaker input RH (+)
1G
Rear door speaker input LH (-)
1H
Rear door speaker input LH (+)
1I
Rear door speaker input RH (-)
1J
Rear door speaker input RH (+)
1K
1L
1M
1N
i-stop control
1O
AudioPilot® 2 microphone (+)
1P
AudioPilot® 2 microphone (-)
2A
2B
Rear door speaker output LH (-)
2C
2D
Rear door speaker output LH (+)
2E
Rear speaker output (+)
2F
2G
Rear speaker output (-)
2H
2I
Front center speaker output (+)
2J
Power ground (5HB)
2K
Front center speaker output (-)
2L
2M
Rear door speaker output RH (+)
2N
2O
Rear door speaker output RH (-)
2P
3A
B+
3B
Power ground
3C
Front door speaker LH and tweeter LH output (-)
3D
Front door speaker LH and tweeter LH output (+)
3E
Front door speaker RH and tweeter RH output (-)
3F
Front door speaker RH and tweeter RH output (+)
3G
Rear center speaker (4SD)/bass-box (5HB) output (-)
3H
Rear center speaker (4SD)/bass-box (5HB) output (+)

R.H.D.

Terminal

Signal

1A
AMP control (SW B+)
1B
Vehicle speed signal
1C
Front door speaker input RH (-)
1D
Front door speaker input RH (+)
1E
Front door speaker input LH (-)
1F
Front door speaker input LH (+)
1G
Rear door speaker input RH (-)
1H
Rear door speaker input RH (+)
1I
Rear door speaker input LH (-)
1J
Rear door speaker input LH (+)
1K
1L
AudioPilot®2
1M
1N
i-stop control
1O
AudioPilot® 2 microphone (+)
1P
AudioPilot® 2 microphone (-)
2A
2B
Rear door speaker output RH (-)
2C
2D
Rear door speaker output RH (+)
2E
Rear speaker output (+)
2F
2G
Rear speaker output (-)
2H
2I
Front center speaker output (+)
2J
Power ground (5HB)
2K
Front center speaker output (-)
2L
2M
Rear door speaker output LH (+)
2N
2O
Rear door speaker output LH (-)
2P
3A
B+
3B
Power ground
3C
Front door speaker RH and tweeter RH output (-)
3D
Front door speaker RH and tweeter RH output (+)
3E
Front door speaker LH and tweeter LH output (-)
3F
Front door speaker LH and tweeter LH output (+)
3G
Rear center speaker (4SD)/bass-box (5HB) output (-)
3H
Rear center speaker (4SD)/bass-box (5HB) output (+)


Operation

1.  The PCM sends a boost request signal to the DC-DC converter and audio amplifier when the engine is restarted by the i-stop control.

2.  When the audio amplifier receives a boost request signal, output current to the speaker is controlled to 10A or less.

Note
•  If the audio amplifier performs current control when the audio volume is 50 or more, the audio volume may decrease for approx. 0.3 s.

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Fail-safe

•  Function not equipped.