50Hz~15KHz 0.5dB
176mV
263mV
12mv
4.5V (THD 0.5%)
4.5V (THD 0.5%)
10mv Volume maximal
8mv Volume minimum
Fault
Reason
Delete fault method
No power
Power plug not connect power jack
Put power plug into power jack
Power on but no voice
1.Music volume maybe in minimum
value
Adjust to proper volume
2.With incorrect signal choice
Please choose correct signal input
3.Signal line fall out
Correct signal line correctly
MIC no vice but
with music
1.MIC line in OFFstate
Please turn MIC switch to ON
2.MIC line broken
Repair or change a new one
3.MIC jack fall out
Connect MIC jack correctly
4.Pre level knob is on minimum state
Adjust level knob properly
5.MIC master volume is minimum
Adjust MIC jack correctly
No video
1.Not connect VIDEO OUT jack well
Connect TV jack VIDEO IN to
machine VIDEO OUT
Vocal no reverberation
EFFECT switch not turn on or
EFFECT volume is minimum
Turn on EFFECT switch and
adjust EFFECT volume
One channel no voice
1.input signal line fall out or not
connect well
Connect again
2. One channel speaker line fall out
Connect speaker line correctly
Can not use remote
control
Remote control without batteries or
with not enough batteries
Check remote control whether have
batteries or not enough batteries,
please install or change batteries
Technology specification
Testing when volume is maximal, input is 1KHz sine wave analog signal, output is 1V(RMS) and
connecting 10K ohms load.
MUSIC frequency response
Sensitivity of input music signal
Sensitivity of B GM signal
MIC input sensitivity
Highest output level in music signal
Highest output level in MIC signal
Output noise level
Output noise level
Power on but no sound
Power plug not connected
Check connection
2. Check input selection
Connect signal line correctly
3. MIC jack not connected
Adjust MIC volume
1. Not connected VIDEO OUT
Turn on EFFECT ON to machine
and adjust EFFECY volume
1. Check connection
2. One channel speaker
Remote control, Check Batteries
Replace with new batteries
MIC no voice
with music
(Volume Maximum)
(Volume Minimum)
FAULT DELETE
SPECIFICATIONS
REMOTE CONTROL
Mute button
Signal input choice button
Menu control button
Reverb control button
MIC volume control button
Anti-whistle function,with
0-3 three grades from
week to strong
Choose menu from up and
down button and adjust
menu parameter
Music volume control button
AUDIO INPUT SELECTOR
MUTE BUTTON
MENU SELECTOR BUTTON
REVERB CONTROL BUTTONS
MICROHONE VOLUME CONTROLS
ANTI FEEDBACK FUNCTION
UP/DOWN MENU SELECTOR
MUSIC VOLUME CONTROLS
two
eleven
