Phonic MU 1705, Руководство пользователя

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PHONIC CORPORATION
Page 15 MU1705 USER’S MANUAL
INITIAL SET UP
This procedure is very important. Even if you don’t
like to read manuals, please read this section.
After you connect up the system, you are ready
to set the initial set up for every input channel.
The match ing of every input trim to the signal
source is crucial; every detail will affect the fi nal
output of the mixer. Basically, the input sen si tiv i ty
adjustment for the channel fader and out put fad er
are the main factors. You should try to set only
as much mi cro phone trim as required to achieve
good bal ance between signals. If the in put trim is
set too low, you will not get enough gain on the
faders to push the signal up to an ad e quate level.
If the in put trim is set too high, the channel fader
will need to be pulled down in compensation, but
it leaves a great er risk of feed back because small
fader movements will have a very sig nifi cant ef fect
on output level. Certainly, the limited fader travel
path will not be successful in the mixing pro ce dure.
Please use the following set up procedure. Don’t
use the old way: turning the out put up until they
clip and then backing off.
Set all faders and trim controls all the way
off.
Any condenser microphones should be con-
nect ed before the +48V phantom pow er is
switched on.
Set power amplifi er levels to 70%.
Set the Headphones lev el to about 50%.
If you want to hear what you’re doing later,
plug your headphones into the phones
output socket.
Depress the MUTE button.
Push in the PFL button.
Set EQ control to the cen ter position.
Set PAN and BALANCE knobs to the center
position.
You need headphones to continue.
Apply a typical performance level signal,
mon i tor ing the level on the LED meter.
Adjust the in put trim until the meter shows
around the 0dBu position, with occasional peaks
to the fi rst red LED at max i mum source level.
This al lows enough head room to ac coMUo date
peaks and the max i mum level for normal op-
eration. You can lis ten to them through your
headphones.
For microphone sources, the gain control ad just -
ment will de pend on what kind of mi cro phone
you use, normally turn the trim clock wise to 2~3
o
’
clock. But please ask the sing er to per form
outloud, don ’ t whisper, if they do not sing at
a normal level while you ’ re doing the sound
check, you might drive the mix er to over load
or pro duce feedback, be cause you set the gain
too high during the ini tial set up.
Repeat this procedure on all other channels.
When more channels are added to the mixer,the
LED meters may move up to the red section,
adjust the overall lev el using the master fad ers
INITIAL SET UP