AUDIO AMPLIFIER CONSTRUCTION

id092000819300

Main Amplifier

• Located in the rear package tray.

• A digital amplifier has been adopted.

• Converts music signals (analog voltage waves) output from an audio unit, into digital pulse signals, and then amplifies and outputs them.

Terminal Layout and Signal

Terminal

Signal

24-pin connector

1A
-
1B
AudioPilot control
1C
-
1D
AMP. mute
1E
Microphone (+)
1F
Right rear speaker input (-)
1G
Microphone (-)
1H
Right rear speaker input (+)
1I
Left rear speaker output (+)
1J
Left rear speaker input (-)
1K
Left rear speaker output (-)
1L
Left rear speaker input (+)
1M
Right rear speaker output (+)
1N
Right front speaker input (-)
1O
Right rear speaker output (-)
1P
Right front speaker input (+)
1Q
Left front speaker input (+)
1R
Left front speaker input (-)
1S
Left front speaker output (-)
1T
Left front speaker input (+)
1U
Right front speaker output (+)
1V
AMP control
1W
Right front speaker output (-)
1X
-

Terminal

Signal

8-pin connector

2A
B+
2B
power GND
2C
Center speaker output (-)
2D
Center speaker output (+)
2E
-
2F
-
2G
-
2H
-

Front Door Speaker Amplifier

• Located in the front door trim.

• A digital amplifier (switching amplifier) has been adopted.

• On/off digital signals are amplified and output, allowing power conservation and lower heat generation. Due to this, a radiating plate (heat sink) is not required, and downsizing of the amplifier has been achieved.

Terminal Layout and Signal

Terminal

Signal

12-pin connector

1A
Front speaker input (+)
1B
Front speaker input (-)
1C
-
1D
-
1E
-
1F
-
1G
-
1H
-
1I
-
1J
AMP. mute
1K
B+
1L
GND

Terminal

Signal

2-pin connector

2A
Front speaker output (+)
2B
Front speaker output (-)