9
INPUT LEVEL Switch
Used to select the level that matches the output level
used by the external equipment being connected. If
connecting a microphone directly to this unit, switch
to “Mic -40 dBm.”
PHANTOM Power Switch
Switch this on when connecting microphones that
require phantom power (48 V). Switch it off when
connecting other types of microphones, or other
devices and equipment.
* Set the phantom power switch to the proper position
BEFORE connecting microphones or other devices.
* You can damage a connected device by having the
phantom power switch set to “ON” when the device you
have connected actually does not need phantom power.
Please check the switch setting before making
connections.
The pin assignments for the input/output jack are
shown in the following diagram. Before connecting,
check the pin assignments on the device being
connected. The phone jack accepts a standard TRS(tip/
ring/sleeve) phone plug, and is used for balanced
input/output. (Unbalanced input/output is also
supported.)
2
1
3
1
1: GND
2: HOT
3: COLD
2
3
HOT
COLD
GND
Making the Connections
As shown in the diagram, connect any peripheral
equipment, then plug in the AC adaptor. By connecting
the AC adaptor, the power is turned on. The Power
indicator lights while power is on.
* Switch the phantom power on or off before making any
connections.
* To prevent malfunction and/or damage to speakers or
other devices, always turn down the volume, and turn off
the power on all devices before making any connections.
* Once the connections have been completed, turn on
power to your various devices in the order specified. By
turning on devices in the wrong order, you risk causing
malfunction and/or damage to speakers and other
devices.
AF-70 —> Mixer etc.
* This unit is equipped with a protection circuit. A brief
interval (a few seconds) after power up is required
before the unit will operate normally.
Example 1
Meeting Rooms/Classrooms
Powered Mixer
AC Adaptor
(Including)
Example 2
Karaoke/Public Address/Presentations
Karaoke System
Public Address System
AC Adaptor
(Including)
