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USB 1389 - 1390 - 1391 - 1392
Class-AB Power amplifiers
SOLUCIÓN DE PROBLEMAS
el Indicador de operación no da luz
• verifique todos los limitadores del amplificador
• verifique limitador principal cerca de la pila
• verifique cables positivos y negativos de la pila
• verifique voltaje a distancia
Indicador de operación da luz pero no hay sonido
• verifique control de la instensidad del sonido en radio
• v
erifique regulador GAIN del amplificador
• v
erifique cables RCA y sus conexiones
• verifique cables de altavoces y sus conexiones
respuesta de los bass es baja
• un cable de altavoz puede estar desconectado
• el control de la instensidad de los bass está puesta a nivel baja
• la unidad activa de crossover está reglada mal
• el amplifiacdor conmuta
• una conexión de tierra con chasis y amplificador mala
el amplificador conecta y desconecta
• los conectadores de cables y pila están oxidados
• v
oltaje baja de la pila
• el cable a distancia está conectado mal.
Un canal no funciona
• v
erifíque conexión de RCA de este canal
• verifíque conexión altavoz de este canal
• el regulador de balanza no está puesto en la posición central
v
erifique altav
oces de este canal
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47


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