TeachLogic Spectrum III User Manual
owner’s manual
Infrared Wireless Microphone System
Spectrum III
owner’s manual
notes
Date of Purchase:
Model Number:
Serial Number:
Notes:
Spectrum III
owner’s manual
thank you
Congratulations on the purchase of your new
Spectrum III Infrared Wireless Microphone Sound
System. You can be assured that the Spectrum III
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 Spectrum III
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.
contact
If you should encounter
some unresolved issue,
please contact TeachLogic
customer service department for further assistance.
Brian Van Waay
President
1
•800•588• 0018
sales @teachlogic.com
1
•760•631•1283
www.teachlogic.com
4
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.
certifications
US CA
Listed
TeachLogic systems are
manufactured using leadfree processes and are free
of materials harmful to the
environment. They conform
to the most stringent new
European guidelines for
consumer products (RoHS).
caution
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
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.
Spectrum III
owner’s manual
transmitter
table of contents
About Infrared .....................................................
Product Description ............................................
Spectrum III System Description IMA-820........
Sapphire Microphone/Trasmitter IRT-60 .........
Handheld Microphone/Transmitter IRH-35 .....
Drop-in Charger BRC-55/Ceiling Sensor ICS-55
Installation of Ceiling Sensor .............................
Installation of Ceiling Speakers .........................
Installation of Wall Mount Speakers .................
System Wiring ...................................................
Page Pass Through .............................................
1
2
3
4
5
6
7
8
9
10-11
12
Fire Alarm ............................................................
RS-232 Features ..................................................
Security Alert Features .......................................
Operation of Wireless Microphone ..................
Trouble Shooting .................................................
System Specifications ......................................
Five Year Limited Warranty ...................................
13
14
15
16
17
18-19
20
6
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.
“What’s said in
the room, stays in
the room”.
Infrared will not
penetrate a solid surface
thus preventing any
transmission from
going out of the room.
a brief word about infrared
Infrared is a light ray that is below the visible
spectrum, just like the sound 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.
So how does this apply to the infrared
communication 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 Spectrum III 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.
1
Spectrum III
owner’s manual
product description
The Spectrum III is an infrared wireless microphone
system that can be added to any sound system. It
can be a supplement to an existing multi-media
system to expand it's utilization to provide voice
reinforcement.
The addition of a Spectrum III system to your
multi-media system will transform your classroom
sound system 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
receiver. The receiver transforms the composite
signal into an analog audio signal which is fed to
the multi-media amplifier. The amplifier powers the
speakers for even voice reinforcement throughout
the room.
The microphone / transmitter can be the Sapphire
or Handheld. The rechargeable batteries will
provide 6 – 8 hours of service per charge. The dropin charger will recharge the batteries overnight,
ready for another day’s use.
2
Reliable
performance.
Use with
confidence.
2
Spectrum III system
CH A CH B
AUX
LESSON
CAPTURE
OUTPUT
INPUT
DVD COMPUTER
MP3
Spectrum III
INPUTS
COMPUTER
DVD
SENSOR
POWER
19V DC
3.4A MAX
EQUALIZER
SPEAKER OUTPUT
B
+
_
123
+
_
RS232
SECURITY ALERT
FIRE ALARM
AC/DC 5-24V
1KHZ
300
100
MIC
1 Tx
2 Gnd
3 Rx
COM
N/O
N/C
COMP/ANTI-HUM
4ohm load = 25watts/amp
10KHZ
3KHZ
ON
OFF
AUX
SENSITIVITY
ALS
PAGE INPUT OUTPUT
100V
70V
25V
5 VOLT
OUTPUT
A
+
_+_
INPUTS
COMPUTER
DVD
SENSOR
POWER
19V DC
3.4A MAX
EQUALIZER
SPEAKER OUTPUT
B
+
_
123
+
_
RS232
SECURITY ALERT
FIRE ALARM
AC/DC 5-24V
1KHZ
300
100
MIC
1 Tx
2 Gnd
3 Rx
COM
N/O
N/C
COMP/ANTI-HUM
4ohm load = 25watts/amp
10KHZ
3KHZ
ON
OFF
AUX
SENSITIVITY
ALS
PAGE INPUT OUTPUT
100V
70V
25V
5 VOLT
OUTPUT
A
+
_+_
The Spectrum III system is comprised of a microphone / transmitter, either
the Sapphire (IRT-60), or Handheld (IRH-35) for voice transmission to a
ceiling sensor (ICS-55) that sends the signal to the receiver / amplifier (IMA-
820). The receiver/amplifier processes the signal and produces an analog
signal of your voice for output to the sound field speaker system.
2
1
3
front of IMA-820 receiver/amplifier
Aux Volume Control
1
Power on/off
2
CH A Microphone Volume Control
3
CH B Microphone Volume Control
4
DVD Volume Control
5
Computer Volume Control
1
2
6
MP3 Volume Control
7
MP3 Input (3.5mm)
8
Lesson Capture Volume Control
9
Lesson Capture Output (3.5mm)
10
3
4
10
11 12 13 141516 17 18
back of IMA-820 receiver/amplifier
1
Speaker Output - Two Channel
Four pin Phoenix connector
2
Fire Alarm - AC/DC 5-24 volt
3
Page Pass Through 2 pin Phoenix
4
Sensitivity control
5
Impedence selector
6
Five band digital equalizer
7
Two Sensor Inputs (RCA)
8
5 Volt USB for BRC-55 charger
9
Power Input: 19 VDC 3.4A
±12 dB
10
ALS gain control
1 1
ALS Input 3-5mm
12
RS-232 Tx,Gnd,Rx -3 pin
13
Security Alert - Com,N/O,N/C -3pin
14
Aux-Mic Input Selector
15
Aux-Mic Input 3.5mm
16
Computer Input 3.5mm
17
Computer Anti hum ON/OFF
18
DVD dual Mono Inputs (RCA)
4
5
6
5
6
9
7
8
10
8
7
9
3
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