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Operation
Power Switch
The front panel switch is a master or "vacation" power switch . No matter which
turn-on mode you have selected, the master power switch will turn off all circuitry
including the sensing circuitry . If you will not be using the amplifier for an extended
period of time, turn the master power switch "Off" (push button switch out) . When
you would like to return to normal operation, turn the switch "On" (push button
switch in) .
IMPORTANT NOTES: Equipment is not completely disconnected from main
power source when power switch is in the "OFF" position .
Power LED
The power LED indicates that the AC cord is plugged into a working AC power
receptacle and that the power switch is in the "On" position .
Bicolor Status LED
The bicolor Status LED illuminates "blue" when the amplifier circuitry has been
turned on by the Turn-On circuits, and illuminates "red" to indicate activation of
the amplifier's built-in protection circuitry due to either a fault in the wiring or the
speaker, or with the amplifier itself .
Cleaning and Maintenance
The internal parts of the Proficient 4-Channel Amplifier are electronic and require
no maintenance . Once a year it is appropriate to twist the RCA connectors on
each input to remove corrosion and improve conductivity . You can clean the
amplifier with soft cloth or paper towel dampened with water or a mild detergent .
Do not use any spray-type, abrasive cleaners on the amplifier .
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Troubleshooting
