LightSpeed Technologies 780iR user manual Input from External Audio Equipment

Input from External

Audio Equipment

Below are instructions on how to connect an external audio device like a TV/VCR, CD/DVD, cassette player, or projector.

1.Connect an RCA cable from the audio source to one of the four (4) AUDIO INPUT jacks on the back of the LES 780iR using an RCA-type male connector. If the audio source produces a stereo signal, a stereo to mono adapter is required (Part # AC-STM-ADPT).

2.With the LES 780iR on, adjust the cor- responding volume knob on the front to a desired level.

Output to Personal

FM Transmitter

1.Using a cable with a 3.5 mm connector at one end, connect the FM OUT or AUX OUT to the input jack of an FM transmitter, recorder, or other device.

It is important to determine the size and type of audio input jack on the device as many manufacturers’ products differ.

The LightSPEED LES-370 requires the CA-MMC3535 cable.

2.With the LES 780iR turned on, adjust the FM OUT or AUX OUT volume on the back of the LES 780iR to a desired level.

Speaker Control

The LES 780iR has six individual speaker outputs, each with its own on/off switch and volume control. By “zoning” or sepa- rating the classroom into different areas where audio may or may not be de- sired, the teacher has greater flexibility controlling the dispersion of sound throughout the room. Zoning is especially useful in large or odd-shaped classrooms.

While LightSPEED recommends leaving the speaker volume set in the middle position to maintain a uniform sound, there may be times when separate volume adjustments are necessary.

Turning Speakers On and Off

1.Ensure that the LES 780iR is turned off and that A and B VOLUME

are turned down.

2.Turn the corresponding SPEAKERS (1-6)/OFF switch(es) on the front panel to the on (up) position.

3.Turn the LES 780iR on and slowly turn up the level of A VOLUME. Walk around the classroom speaking into the mic at a normal level and ensure that the desired volume is coming from each speaker. Do the same with B VOLUME if using a second LightMic.

Controlling the Volume of

the Individual Speakers

An area of the classroom may contain a noise emitter such as an HVAC system. In this case, it may be necessary to turn up the volume of the affected speaker to overcome the noise in that area.

When his situation arises, the LES 780iR allows the user to fine tune the output level:

1.Locate the speaker volume control knobs on back panel (SPEAKER 1-6) above the speaker outputs.

2.If possible, have a second person stand by the speaker(s) needing adjustment.

3.Speak into the mic at a normal level and adjust the corresponding speaker volume control(s) (SPEAKER 1-6) to a desired level.

Turning speaker volume too high can result in feedback when walking under speaker.

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