TeachLogic Spectrum IMA-840, Руководство по установке

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Spectrum
™
Power Button Lights/Standby Function
18
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Power Button Operation
The main power button on the amplifier’s front panel has multiple indications as shown in the table below.
Red, solid
Off state; power is still supplied to USB port on back
panel used to charge microphones
Blue, solid On
Blue flashing Page received and audio sources muted
Amber, solid In Standby (or “Sleep”) mode. See below
Red, flashing Muted by Fire Alarm Mute Input
Purple,
System in Ducked mode with all line inputs lowered in
volume to allow microphones to be better heard. The
Sapphire mic on Channel A can trigger this “Teacher
Priority” mode with a press of its priority button (toggles
mode on and off)
Green/Red flashing
Indications of Security Alert pulse mode (see section
above)
Green Flashing Security Alert activated
System Standby Function
Standby Mode is a feature that reduces power consumption after the amplifier has not been used to amplify audio
signal for a period of two hours. After entering the automatic standby mode, the amplifier displays an amber light
at power button.
Normal ON mode may be resumed by
1. speaking into a microphone that is on,
2. sending an audio signal into one of the line inputs *such as a projector or flat panel audio signal), or
3. pressing the power button once.
It may take a few seconds for the normal mode to resume after one of these actions is taken. A page signal can
also “wake” the amplifier, but to hear the full first page of a morning, be sure to wake it first with one of the methods
above since, or the initial several seconds may be missed if there are no other paging speakers provided to deliver
the page audio.