9
5. DISPLAY SCREEN OPERATION INSTRUCTIONS
Note:
1
.
Turn
off
the
power
switch,Please
wait
about
5
seconds
before
turning
on
again.Continuous
rapid
turning
on
and
off
the
power
switch
,
it
will
lead
to
equipment
failure
.
2
.
Even
the
switch
is
in
the
off
status
,
there
will
be
a
little
current
in
equipment
.
If
it
won’t
use
the
equipment
in
a
long
time
,
please
unplug
the
power
cord
from
the
wall
AC
socket
.
4.
1.Turning the volume knob to the left,Connect the microphone and microphone input interface.
2.Turning the volume knob in the right position.
3.Facing the microphone and Speak loudly, turn the volume knob to the right, until the output signal
no longer distortion.If input is high but output is low voice, and then increase the volume by using
the volume knob.If the speaker volume is very high, then reduce the volume by using the volume
knob.
Microphone using:
5.Shutdown the system:
1
.
Turning the volume knob to the left until the minimum position.
2
.
Turning off the panel power switch of the professional power amplifier, at 0ff.In turn shutoff
processor equipment and audio source equipment.
6. TROUBLESHOOTING
Failure phenomena
Failure cause
1. Power switch is not opened
1 Power line is cut off
2. The protection function of the equipment is
not activated
.
2. All lines are connected, but there is
no sound.
1. The power switch is not opened or the power
plug is bad contacted.
2. The fuse is burnt
3. The volume knob is not opened or turned down
to a extra low level
4. There is no audio signal input
5. There is short-circuit in the speaker line.
3. The sound suddenly disappears in
normal status.
1. The equipment is in very high temperature to
make it into protection status.
2. The connection wire is bad contact.
4. Low sound
The equipment is set to be low impedance
connection, but the speakers connected is
with high impedance.
5. Sound is distorted
The input level of Mic or external equipment
is too high
