PHONIC MM1805
Manual de Usuario

l Set the CTRL RM Level and Headphone level to about 50%. l If you want to hear what you�re doing later, plug your headphone into the phone output socket, or hook up your control room amplifier system to the Control Room outputs. l Release the channel on button, the LED will not light. But please ask the singer to perform alive, don�t whisper while you�re making sound check, or else ...... l Push in the PFL button, the LED should light. l Set EQ control and Graphic EQ at center position. l Set PAN and BALANCE knobs at center position. l You need a headphone to continue. l Apply a typical performance level signal, monitoring the level on the LED meter. l Adjust the input trim until the meter show in the amber section, with occasional peak to the first red LED at maximum source level. This allows enough headroom to accommodate peak and the maximum level for normal operation; you can listen to them through your headphone. l For �+4� line level audio signals, you may not need to turn it at all. l For �-10� sources, you may need to turn the trim a little bit higher. l For microphone sources, the trim control adjustment will depend on what kind of the microphone you use, normally turn the trim clockwise around 2~3 o�clock. But please ask the singer to perform alive, don�t whisper, if they didn�t wake up while you�re doing the sound check, when they are back to alive, you might drive the mixer overload or produce the feedback, because you set the gain too high during the initial set up. l Repeat this procedure on every other channel, when more channels are added to the mixer, the meters LED may move up to the red section, adjust the overall level using the master faders if necessary.

2.4 BALANCED/UNBALANCED SYSTEM
Unbalanced/Balanced Connection
Most of the mistakes in audio installations are incorrect & defective audio connections. Most of the mistakes in audio installations are incorrect and defective audio connections. In order to perfectly complete your installation, please pay special attention to the following section unless you are already familiar with balanced/unbalanced operation.

What is an unbalanced system?
You can find this system in most of home audio-video system. The connector uses one conductor to carry the signal, and the other conductor for ground. Normally for lower level signal, the signal conductor is shielded by the ground conductor.

What is a balanced system?
Balanced system transmits the signal via 2 conductors plus one ground shielding conductor. The 2 signal conductors carry the same signal but out of phase. For the balanced input stage, the amplifier will boost the difference of the 2 signal conductors and remove the identical part of the 2 signal

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