47. POWER SUPPLY INPUT SOCKET
Connect the power supply unit to this socket
．
Make sure the power supply unit is not
plugged into mains before connecting to the mixer
．
48. POWER ON/OFF SWITCH
This switch turn on and off the power of the unit
．
Usually Set Up
Even if you do not like to read manual
．
Please read this section
．
This procedure is Very important
．
even if you do not like to read manual
．
please read
this section
．
Alter you connected up the system, you are ready to set the initial set up
for every input channel, the matching of every input trim to the signal source is
crucial
．
Every detail will affect the final output of the mixer
．
Basically, the input
sensitivity adjustment, channel fader, groups and output fader is the main factors
．
You
should try to set only as much microphone trim as required to achieve good balance
between signals
．
It the input gain is set too low, you will not get enough gain on the
faders to push the signal up to adequate level
．
if the input gain is set too high, the
channel fader will need to be pulled down in compensation, but leave the greater risk of
feedback because a small fader movements will have a very significant effect on output
level
．
Certainly, the limited fader travel path will not successful in the mixing
procedure
．
Please use the following set up procedure, do not use the old way: turning
the output up until they clip and then backing off
But please ask the singer to perform alive; do not whisper while you are making sound
check, or elas
Follow the procedure for each channel in use
Set all faders and gain controls all the way off.
Phantom powered microphone should be connected before the+48V is switched on.
Set power amplifier level to 70
％
.
Set the CTRL RM level and Headphone level to about 50%.
If you want to hear what you are doing later
．
Plug your headphone into the phone
output socket
，
or hook up your control room amplifier system to the Control Room
outputs.
