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Pasos de operación del amplificador
When all connections to the amplifier are made, turn all rotary controls down and switch on the power and a power "ON" LED
will illuminate. Turn BASS and TREBLE controls to the 12 o'clock position (pointing straight up) and turn MASTER rotary
control up part way for testing.
Ensure a signal is being fed to one of the line inputs 1, 2, 3, 4, 5, 6 or 7 and gradually increase the volume control for that
channel until the output is heard through the speakers. Turn up the MASTER to the maximum required volume level and
reduce the channel volume control if necessary.
Note: The initial test can be made using the built-in USB/SD/FM audio player. The output of the amplifier is represented on the
level meter LEDs and care should be taken that the Red "0" LED is only lit momentarily during use. Anything longer than a
short flash of this LED may be indicating distortion or clipping of the output signal and the MASTER should be turned down.
If a microphone is connected to MIC2-4 input, make sure it is switched on and if it requires phantom power, make sure this
feature is enabled. Gradually increase its volume control whilst speaking into the microphone until the required volume level is
reached. The microphone should not be able to "hear" the speakers, which can cause feedback (squealing or howling noise).
If the VOX feature is enabled, audio playback through channels 2-6 will be reduced in volume automatically when speaking
into MIC 1, use its attenuator to increase or decrease the mute level.
In addition to channel and MASTER volume controls, there are BASS and TREBLE EQ controls to adjust the tone of the
overall output. At the 12 o'clock position, these controls are applying no effect to the signal (no boost or cut). Moving the BASS
control clockwise boosts the low frequencies in the audio, whilst moving it anticlockwise will cut these low frequencies.
Likewise, moving the TREBLE control clockwise boosts the high frequencies in the audio, whilst moving it anticlockwise will
cut these high frequencies. Adjust these EQ controls to suit the type of audio signal or compensate for the room acoustics.
Reproducción del USB/SD
Inserte una memoria USB en el Puerto USB y / o una tarjeta SD en la entrada de la tarjeta SD.
1.
Pulse el botón CD / USB / SD para asegurarse de que el reproductor esté configurado para reproducir desde el dispositivo de
2.
memoria requerido. Presione el botón PLAY / PAUSE para reproducir la pista actual y presione nuevamente para pausar
según sea necesario.
La búsqueda y reproducción de pistas es la misma que se ha descrito anteriormente en el apartado de módulo musical.
3.
Radio FM
1.
Pulse el botón de selección de FM para cambiar a la función de sintonizador de FM.
Utilice los botones "Previous" o "Next" para seleccionar un canal almacenado.
2.
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