TeachLogic Spectrum IMA-840, Руководство по установке

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Spectrum
™
Final Setup
17
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Final Setup
Now that the system is installed and connected, turn the system “ON” and test its performance.
The testing will be done using an IR (infrared) microphone (Sapphire™ or Handheld) to confirm good
connectivity.
AMPLIFIER
• Connect power supply to amplifier, then plug into outlet.
• Turn the amplifier ON by pushing the power button. The “TL” illuminates solid blue when the amplifier is
powered ON.
• Confirm there is power to the IR ceiling sensor: A green LED on edge of sensor should be illuminated
that indicates it is receiving power.
• Set all gain/volume dials to mid scale (12 o’clock position)
IRT-60 (SAPPHIRE) MICROPHONE SETUP
• Confirm "Ch A" volume dial is at mid scale (12 o’clock position)
• Slide gain/volume control switch on Sapphire to "Normal" setting.
• Press and hold power mic button until the LED light illuminates.
• Observe Sapphire power LED. Solid blue indicates power is on and mic is transmitting.
• Observe amplifier Ch A indicator LED. It should be green, indicating a connection between the
microphone and ceiling sensor.
•
If using two IRT-60 microphones in the same room, one must be changed to channel B to avoid
interference. Watch the how-to video on teachlogic.com/resources .
Note: Next steps should be performed with a second person as the listener
• Stand under or in front of a speaker.
• Hold the microphone with the top at your collarbone and observe the speaker volume in the room by
speaking in a natural voice.
•
Raise the volume on Ch A until feedback begins, then reduce volume to an acceptable level and until
indications of feedback have stopped.
• Walk around the room while talking into microphone to confirm good connectivity and sound levels and
lack of feedback under/in front of each speaker.
IRH-35 HANDHELD MICROPHONE SETUP
• Confirm "Ch B" volume control is set to mid-scale (12 o’clock position)
• Power on microphone using ON/OFF switch.
• Observe LED above mic switch. Solid green indicates power is on and ready to use.
• Observe amplifier Ch B indicator LED. It should be green, indicating a connection between the
microphone and IR ceiling sensor.
• Hold the microphone about 3 inches from the mouth, above chin level and perform voice test.
• Raise the volume on “Ch B” until feedback begins, then reduce volume to eliminate all feedback.
• Walk around the room while talking into the microphone to confirm good connectivity and sound
under/in front of each speaker without feedback.
Once complete, charge microphones so they are ready for use.