Wiring Of Power Amplifier - ABK PA7212 User Manual

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Fire Protection/Public Address System
3 FM antenna
Connects an FM antenna.
4 AM antenna
Connects an AM antenna. Please note the ground
terminal when connecting.
5 Short OUT interface
The short OUT interface is used to provide
short-circuit signal to devices requiring short-circuit
signal. The short-circuit signal is controlled by the
timer power supply.
6 Timer power output socket
This socket offers an AC220V voltage to other
device, which is controlled manually or by time
schedule.
7 Timer power supply fuse
In case of fuse blowing, please replace the fuse with a
new one with the same specifications. If this failure
still exists, please check the circuit for failure.
8 AC220V output power fuse
In case of fuse blowing, please replace the fuse with a
new one with the same specifications. If this failure
still exists, please check the circuit for failure.
9 AC220V power socket
The power socket is used to connect to the mains for
power supply of the system.
10 AUX1/MIC1 IN selector switch
The AUX1 and MIC1 use a common input channel. If
the switch is turned to the AUX position, the line
signal is input; if the switch is turned to the MIC
position, the microphone signal is input.

Wiring of Power Amplifier

1 Wiring diagram of zone output
The output voltage of each zone is 100V. To
connect the zone output, refer to the right
diagram and note that the HOT and COM
terminals are different. Speakers connected
to zones should
transformer.
Caution: Make sure that the power supply
is turned off when wiring.
Zone 1
be provided with
If signals from line and microphone are input to one
channel at the same time, select the selector switch to
adjust the volume of one of the signals.
11 AUX OUT interface
This interface is used to connect to an audio monitor,
such as a power amplifier.
12 AUX1 IN interface
This interface is used to connect to an audio source,
such as a CD player, tuner and cassette.
13 MIC2 IN interface
14 AUX2/MIC2 IN selector switch
The AUX2 and MIC2 use a common input channel. If
the switch is turned to the AUX position, the line
signal is input; if the switch is turned to the MIC
position, the microphone signal is input.
15 AUX2 IN interface
This interface is used to connect to an audio source,
such as a CD player, tuner and cassette.
16 AUX3 IN interface
This interface is used to connect to an audio source,
such as a CD player, tuner and cassette.
17 MIC3 IN interface
18 AUX3/MIC3 IN selector switch
The AUX3 and MIC3 use a common input channel. If
the switch is turned to the AUX position, the line
signal is input; if the switch is turned to the MIC
position, the microphone signal is input.
Speaker with
transformer
SP1 SP2 SP3 SP4 SP5 SP6
COM COM COM COM
5
Multi-function Player
Zone 6
Speaker with
transformer
COM COM
PA7235