TeachLogic IMA-320 Manual de usuario

owner’s manual

Infrared Wireless Microphone System

owner’s manual

Forum

notes

Date of Purchase:

Model Number:

Serial Number:

Notes:

contact

thank you

If you should encounter

some unresolved issue,

please contact TeachLogic

customer service depart-

ment for further assistance.

owner’s manual

Congratulations on the purchase of your new Forum

Infrared Wireless Microphone Sound System. You

can be assured that the Forum fulﬁlls all

speciﬁcations and was produced to very high

quality control standards. TeachLogic incorporates

the latest state of the art technology, employs the

most advanced manufacturing methodology and

uses only premium quality components to assure

many years of reliable performance. We appreciate

your conﬁdence by your selection of our product. It

is TeachLogic’s intent to uphold that conﬁdence by

providing factory assistance and dealer support.

We hope you will take the time to view this manual

to familiarize yourself with the product operation

and features. This manual will help you learn to use

and gain the maximum beneﬁt of the Forum

system. The manual provides a basic explanation on

the principles and advantages of infrared

transmission. Followed by the system description,

operation and installation instructions, the manual

will conclude with maintenance and troubleshooting

procedures.

Brian Van Waay

President

1•800•588•0018

sales@teachlogic.com

1•760•631•1283

www.teachlogic.com

Forum

safety instructions

Read Instructions

All safety and operation instructions should be read

before operating this TeachLogic product.

Retain Instructions

Safety and operating instructions should be kept

for future reference.

Water & Moisture

This product should not be operated near water.

Heat Environment

Do not subject this product to excessive heat

conditions.

Power Source

This product must be connected to an AC power

source per the voltage input speciﬁed and marked

on the power supply.

Power Cord Caution

Power cable should be routed clear of foot trafﬁc

and supported clear of kinking or abrasion.

Object Protection

Locate the operating unit so it will not be subjected

to falling objects or water entry.

Internal Service

User should not attempt to service this product.

All internal service must be accomplished by a

qualiﬁed technician.

Electric Shock

Do not adapt or modify the AC power plug thus

lifting the earth ground connection.

certifications

Listed

US CA

TeachLogic systems are

manufactured using lead-

free processes and are free

of materials harmful to the

environment. They conform

to the most stringent new

European guidelines for

consumer products (RoHS).

Recycle—Do not dispose

rechargeable batteries in

trash. Actually it is unlawful

to do so in CA, NY & ME.

Contact: Earth911.com

1-800-CLEANUP

Save our resources and

don’t contaminate.

Go Green

caution

transmitter

-9

table of contents

About Infrared ............................................................

Product Description ...................................................

Forum System Description IMA-320 ........................

Sapphire Microphone/Transmitters IRT-55 .............

Handheld Microphone/Transmitter IRH-35 .............

Drop-in Chargers BRC-55/Ceiling Sensor ICS-55 ...

Installation of Ceiling Sensor .....................................

Instalation of Wall and Ceiling Speakers ..................

System Wiring ............................................................

Operation of Wireless Microphone .........................

Troubleshooting ..........................................................

General Speciﬁcations ...............................................

Microphone Speciﬁcations ........................................

Five Year Limited Warranty .......................................

8-9

10-11

owner’s manual

Forum

a brief word about infrared

Infrared is a light ray that is below the visible

spectrum, just like the sound spectrum extends

beyond your hearing ability. An example of infrared

transmission is the remote control for your TV set.

When a button is pressed, a beam of infrared light

is emitted by a Light Emitting Diode (LED) from the

remote control. It is detected by a receiving diode

in your TV set. When you press a certain command

on your control, the internal electronics cause the

infrared light to ﬂicker in a programmed sequential

pattern (called modulating the light beam). The

modulated infrared beam is detected by the

receiving diode and is electronically decoded. The

decoded signal activates the circuitry to perform

the command function on your TV set.

Sohowdoes this applytotheinfraredcommunication

system you are about to start using? The

microphone/transmitter has several Light Emitting

Diodes (LED) that emit infrared light beams to the

sensor located in the corner of the room. Now

when you talk into the microphone, the microphone

element modulates the light beam, causing it to

ﬂicker in sync with your speech. The sensor detects

the sequential signal and the electronic circuitry in

the Forum converts that sequential signal into a line

level analog audio signal. Now that audio signal can

be fed into an ampliﬁer. The ampliﬁer magniﬁes

the electronic signal and sends it to the speakers.

This causes the speaker cone to move in sync with

your voice. The speaker replicates your voice and

disperses your voice evenly throughout the room.

IR transmission

The IR transmitter

transmits directly to the

sensor. However; due to

the strength of the IR

transmitter, the infrared

signal will bounce off the

walls, ceiling and ﬂoor for

reception thus providing

continuous connectivity

throughout the room.

Beneﬁt: total freedom

of movement within the

room with no restriction

of orientation.

Infrared will not

penetrate a solid surface

thus preventing any

transmission from

going out of the room.

“What’s said in

the room, stays in

the room”.

owner’s manual

Forum

product description

The Forum is an infrared wireless microphone

sound system. It is the nucleus of the classroom

sound ﬁeld system which provides optimum voice

reinforcement.

The addition of a Forum sound ﬁeld system will

transform your classroom into a totally hands free,

voice re-enforcement system, resulting in reduced

voice fatigue, enhanced student listening and

improved student learning. The wireless function

permits 360° connectivity throughout the classroom

regardless of body position or orientation.

The system is comprised of an infrared detecting

sensor(s) installed in the ceiling. The sensor

collects the IR wireless signal from the microphone/

transmitter and sends a composite signal to

the mixer/ampliﬁer. The receiver transforms the

composite signal into an analog audio signal

which is fed to the Forum mixer. Two other audio

sources, such as; computer, DVD, VCR or Projector

can be plugged in to the Forum. The volume level

of each input will be controlled by the individual

volume control of each input. The audio will then

be fed to the speakers in the room for even voice

reinforcement throughout the room.

On the front panel of the Forum, there are two

3.5mm output jacks for interface with an assistive

listening system (ALS) and lesson capture (REC).

The microphone / transmitter can be one or two

Sapphires Pendant or a Handheld and a Sapphire

Pendant. The rechargeable batteries will provide

6 – 8 hours of service per charge. The drop-in

charger will recharge the batteries overnight, ready

for another day’s use.

Reliable

performance.

Use with

confidence.

front of IMA-320 receiver/amplifier

back of IMA-320 receiver/amplifier

Power on/off

CH A Microphone Volume Control

CH B Microphone Volume Control

DVD Volume Control

Comp/Aux Volume Control

Speaker Output - Two Channel Four

pin Phoenix connector

Three band digital equalizer ±12 dB

LO, MID, HI

Computer/Aux Input 3.5mm

Comp/Aux Input (3.5mm)

ALS Volume Control

ALS Output (3.5mm)

REC Volume Control

REC Output (3.5mm)

DVD gain ±12 dB

DVD dual Mono Inputs (RCA)

Two Sensor Inputs (RCA)

Power Input: 19 VDC 3.4A

Forum system

The Forum system is comprised of a microphone / transmitter, either the

Sapphire (IRT-55), and/or Handheld (IRH-35) for voice transmission to a

ceiling sensor (ICS-55) that sends the signal to the receiver / ampliﬁer (IMA-

320). The receiver/ampliﬁer processes the signal and produces an analog

signal of your voice for output to the sound ﬁeld speaker system.

Forum 232

CH A CH B

COMP/AUX

LESSON

CAPTURE

OUTPUT

INPUT

DVD

ASSISTIVE

LISTENING

OUTPUT

8910

Forum

CH A CH B

COMP/AUX

LESSON

CAPTURE

OUTPUT

INPUT

DVD

ASSISTIVE

LISTENING

OUTPUT

INPUTS

COMP/AUX DVD SENSOR

POWER

19V DC

3.4A MAX

SPEAKER OUTPUT

+_+_

MID

LOW

GAIN

4ohm load = 25watts/amp

124567

owner’s manual

Forum

infrared microphone/transmitters

The infrared microphone/transmitter is comprised of a microphone input, signal processing

circuits and several emitting diodes that transmit the vocal signal to the sensor.

The microphone/transmitter can be the Sapphire or Handheld. The rechargeable batteries

will provide 6–8 hours of service per charge. Place the microphone/transmitter in the charger

for overnight charge and it will be ready for another day’s use.

The drop-in battery chargers are speciﬁcally designed to recharge lithium & NiMH batteries

at an optimum rate for maximum operating capacity and extended service life. Charger will

automatically start charging the batteries upon insertion and will shift to a maintenance

charge when batteries are fully charged.

The Sapphire’s vocal clarity is unsurpassed. Its

high level output is achieved by the unidirectional

(Cardioid) microphone and a unique free air

suspension system. With a built-in breath ﬁlter, the

Sapphire can function as a pass around hand mic.

The strategic alignment of the emitting diodes

assures reliable connectivity throughout the room

without static or drop out.

With a tap on the power button, the microphone

is muted for private conversation—tap again to

restore to normal operation. The auxiliary input

allows wireless playback of your iPod™ through the

Sapphire. A three position slide switch provides

selection of low, medium, or high microphone

sensitivity.

features

•Elegant design

•Only 1.4 oz. including bat-

tery

•Long life “Lithium ion”

battery

•Rechargeable via USB cable

to computer

•Battery level indicator –

Back light under power

switch

•Momentary mute button,

backlight blinks in mute

mode

•Push “on/off” power

•Channel “A” or “B” select-

able

•Three level microphone vol-

ume switch (low, medium,

high)

•Auxiliary input (3.5mm)

•Wear with a lanyard or slide

directly on neckline collar

(IRT-55) sapphire transmitter

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