LD Systems U3047 HHD2 Dual Wireless Microphone System with Two Dynamic Handheld Microphone (470 to 490 MHz) - Manual (Page 6)

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4 VOL
Rotary knob to adjust the output volume.
5 IR INTERFACE
Infra-red interface for synchronising the receiver’s radio channel with the transmitter.
6 ASC
To synchronise the transmitter with the radio channel set in the receiver, position the infra-red port of the transmitter directly in line with the infra-red
interface of the receiver and switch on the transmitter and receiver (distance about 10 cm, IR interface of the hand transmitter is below the status LED,
IR interface of the pocket transmitter on the front side). Now press the ASC button to start the synchronisation process. A red LED indicator will light up
in the window of the IR interface during the process. After a few seconds, the process is completed and one of the LED indicators ANTENNA A and B will
light up (= wireless connection exists).
7 LEVEL INDICATOR
5-segment LED chain to display the audio signal level.
8 ANTENNA A - B
Indicator LEDs for the antenna systems A and B. The antenna system with the stronger radio signal is activated and the corresponding indicator LED
lights up.
9 RECEPTION ANTENNAS A - B
For optimum reception, please position the antennas in an upward-facing V-position.
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10 DC SOCKET
Low-voltage socket for the power supply to the device. Please use only the supplied mains adapter.
11 CABLE STRAIN-RELIEF
Cable strain relief for power adapter cable.
12 UNBALANCED OUTPUT
Unbalanced audio output via 6.3mm jack socket.
13 INSTRUMENT/LINE (UNBALANCED OUTPUT)
Switch for level and impedance-matching to instruments or line inputs of an amplifier or mixer. Using a suitable tool (e.g. a ballpoint pen), push the
switch into the depressed INSTRUMENT position for connection to the input of an instrument amplifier (guitar or bass amp) and for connection to
the line-input of a mixer or amplifier, select the non-depressed position LINE.