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Macrom 42.24 Manual

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MACROM SPAGNOLO 42.15 - 42.17 17 FEBBRAIO 1993 35
REGULACIONES E INTERRUPTORES
INTERRUPTOR DE SELECCION DE ENTRADA
a) MODO "ESTEREO". Seleccionen la posición “ST” al utilizar
el amplificador como un sistema estéreo de 2 canales.
Nota: También en este caso es posible la conexión del canal
central L+ R-.
b)MODO "L- MONO". Seleccionen la posición “L- MONO” al
utilizar el amplificador con un solo canal de entrada.
NOTA: Conecten los cables procedentes de un solo altavoz a
los bornes (L+ R-) para obtener una conexión BTL (de puente).
Si desean una imágen estereofónica habrá que emplear otro
42.14/42.16 conectado del mismo modo con el otro altavoz.
L (MONO) ST L+R
L (MONO) ST L+R
c) MODO "L+R". Seleccionen el interruptor en posición “L+R” al
utilizar el amplificador para un sistema de subwoofer que
utiliza los canales derecho y izquierdo. Las dos entradas se
mezclarán así, obteniendo una sola señal monofónica en
salida repartida por los dos canales o por un solo canal con el
doble de la potencia si el subwoofer está conectado al canal
central (L+ R).
L (MONO) ST L+R
35
CONTROL DE REGULACION DE LA GANANCIA EN ENTRADA
La posición central sirve para seleccionar la sensibilidad de la
entrada a 500 mV, que corresponde a la salida de preamplificación
de los productos MACROM.
Toda vez que deseen conectar el amplificador a una unidad
principal, que no sea MACROM, pero que tenga salidas
preamplificadas tipo RCA, hay que hacer lo siguiente:
a) coloquen el control del volúmen de su unidad principal a 3/4
de la salida máxima.
b) ajusten después el control de ganancia de entrada empleando
un desatornillador y regulen la ganancia en entrada de 0,1 a
2 Voltios para obtener la presión sonora máxima, pero sin
distorsiones.
GAIN
CONTROL
0.5V
0.1V2 V
GAIN
CONTROL
0.5V
0.1V2 V
… 34 …


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