Audio2000's AKJ7404 Karaoke Machine User Manual


 
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MUSIC VOLUME CONTROL
This control knob allows the user to adjust the
volume of the music output.
MASTER MICROPHONE VOLUME CONTROL
This control knob adjusts the overall volume of
all microphones.
ECHO VOLUME CONTROL
This control knob adjusts the volume of the
microphone echo effect.
VFD DISPLAY PANEL
This panel display all input information and
key control information.
FEEDBACK CONTROL FREQUENCY
ADJUSTMENT (FREQ)
When the use of microphones causes feedback
(howling) results, turning the frequency
adjustment knob to match the feedback control
frequency to the howling frequency. The
feedback control frequency range is from
80Hz to 7.5KHz.
FEEDBACK CONTROL GAIN ADJUSTMENT
(GAIN)
When the use of microphones causes feedback
(howling) results, turning the gain adjustment
knob to adjust the amplitude (gain) of the
howling frequency. The feedback control gain
can be adjusted between -12dB and +12dB.
KEY CONTROL BUTTONS
b : Lowers the music key one step (each step is
1/4 note) each time this button is pressed.
: Resets the music key to its natural key.
# : Raises the music key one step (each step is 1/4
note) each time this button is pressed.
Note:The key will stay until it is changed further.
ECHO TONE (BASS/MID/TREBLE) CONTROLS
These controls are used to boost or cut the low, mid
and high frequency responses of the echo sound.
AUTO / MANUAL INDICATOR
This is to indicate the status of the AUTO ON OFF
switch on the rear panel. When the AUTO ON OFF
switch is set to ON, the LED indicator will be turned on.
When the AUTO ON OFF switch is set to OFF, the
LED indicator will be turned off.
REMOTE CONTROL SENSOR
The infrared control signal from the remote control
commander is to be received through this sensor.
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INPUT SELECTION BUTTONS
These buttons can be manually set only
when the AUTO ON OFF switch on the
rear panel is set to OFF.
When used, press any of these buttons to
select the desired music input source.
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DESCRIPTIONS AND FUNCTIONS