DESCRIPTIONS AND FUNCTIONS
7MUSIC VOLUME CONTROL
This control knob allows the user to adjust the volume of the music output.
8MASTER MICROPHONE VOLUME CONTROL This control knob adjusts the overall volume of all microphones.
9ECHO VOLUME CONTROL
This control knob adjusts the volume of the microphone echo effect.
10VFD DISPL AY PANEL
This panel display all input information and key control information.
11FEEDBACK 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.
12FEEDBACK 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
13INPUT 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.
14KEY 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.
15ECHO TONE (BASS/MID/TREBLE) CONTROLS These controls are used to boost or cut the low, mid and high frequency responses of the echo sound.
16AUTO / 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.
17REMOTE CONTROL SENSOR
The infrared control signal from the remote control commander is to be received through this sensor.