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Halo A 31 Owner's Manual
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12Front Panel OperationOn-Off ButtonPush once to turn on the A 31. When the A 31 is turned on the blue glow around the On-Offbutton will be brighter, the red P badge will glow brighter and then the 3 channel indicatorswill illuminate blue. Push again to turn off the A 31. The front panel On-Off button will bedisabled when the Turn On Options switch is set to Audio or 12V.Whenever the A 31 is turned on, the soft blue glow behind its On-Off button will changeto red for a few seconds as its internal circuits stabilize. Then the red glow is replacedby a brighter blue glow to indicate normal operation. If the glow remains red after turn onor while the amp is playing, it indicates activation of the A 31’s protection circuits and nosound will be heard from the speaker.The A 31 protects itself from external conditions such as excessive heat, load impedancethat is too low, or a short-circuited speaker connection or wire. After you correct the fault,the A 31 will resume operation. If the A 31 remains “in protection” after it has cooled downand you’ve confirmed there are no external faults, it could indicate an internal problem.Please contact Parasound’s Technical Service Department.Channel IndicatorsWhen all three blue channel indicators are lit, the A 31 is operating normally. If one or moreof the indicators do not light even though the amp is turned on there is a fault in your system.In the case of a fault first check that there is no short circuit with your speaker wire orspeakers.Hi Temp IndicatorThis indicator is near the right side of the panel recess. It will glow red if any channeloverheats. The On-Off button will also glow red if the A 31 overheats. If such a conditionoccurs you must provide for better ventilation around the amplifier or check speakers forfaulty operation that is causing the A 31 to over heat. |
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