TeachLogic Matrix IMA-120 User manual

Ampli er
Audio Mixer
Infrared Microphone Receiver
MatrixTM
CLASSROOM AUDIO SYSTEM
INSTALLER AND OPERATIONS MANUAL
P/N UMM-120

owner’s manual
Matrix

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
TeachLogic system. You can be assured that this
󰀨ullls all specications 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 condence by
your selection of our product. It is TeachLogic’s
intent to uphold that condence by providing factory
assistance and dealer support.
We hope you will take the time to review this manual
to familiarize yourself with the product operation and
features. This manual will help you learn to use and
gain the maximum benet of the system.
TeachLogic, LLC
Longmont, Colorado, USA
teachlogic.com
1-760-631-7800
[e-mail]
www.teachlogic.com
Matrix

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
is product should not be operated near water.
Heat Environment
Do not subject this product to excessive heat conditions.
Power Source
is product must be connected to an AC power source
per the voltage input specied and marked on the power
supply.
Power Cord Caution
Power cable should be routed clear of foot trac 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 qualied
technician.
Electric Shock
Do not adapt or modify the AC power plug thus liing
the earth ground connection.
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
certifications
TeachLogic systems are
manufactured using lead-
free processes and are free
of materials harmful to the
environment. ey conform
to the most stringent new
European guidelines for
consumer products (RoHS).

transmitter
table of contents
About Infrared ........................................................
Product Description ...............................................
Matrix System Description IMA-120 ..................
Sapphire Microphone/Trasmitter IRT-60 ..........
Handheld Microphone/Transmitter IRH-35 ....
Drop-in Charger BRC-60/Ceiling Sensor ICS-55
Installation of Ceiling Sensor ..............................
Installation of Ceiling Speakers ..........................
Installation of Wall Mount Speakers .................
System Wiring .......................................................
Page Pass rough ................................................
Page Pass Illustrations...........................................
RS-232 Features .....................................................
RS-232 Codes..........................................................
CPS-120 Touch Control Panel ...........................
Security Alert Features.........................................
Bluetooth ................................................................
Operation of Wirless Microphone......................
Trouble Shooting ..................................................
System Specications ...........................................
Five Year Limited Warranty ................................
1
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3
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10-11
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16-17
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22-23
24
owner’s manual
Matrix

a brief word about infrared
Infrared is a light ray that is below the visible spectrum,
just like the soun 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 icker in a programmed sequential pattern
(called modulating the light beam). e modulated
infrared beam is detected by the receiving diode and is
electronically decoded. e 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? e 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 icker in sync with your speech. e
sensor detects the sequential signal and the electronic
circuitry in the Matrix converts that sequential signal
into a line level analog audio signal. Now that audio signal
can be fed into an amplier. e amplier magnies the
electronic signal and sends it to the speakers. is causes
the speaker cone to move in sync with your voice. e
speaker replicates your voice and disperses your voice
evenly throughout the room.
1
IR transmission
e IR transmitter
transmits directly to the
sensor. However; due
to the strength of the IR
transmitter, the infrared
signal will bounce o the
walls, ceiling and oor for
reception thus providing
continuous connectiv-
ity throughout the room.
Benet: 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
2
Matrix
product description
e Matrix 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.
e addition of a Matrix 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. e wireless
function permits 360° connectivity throughout the
classroom regardless of body position or orientation.
e system is comprised of an infrared detecting sensor(s)
installed in the ceiling. e sensor collects the IR wireless
signal from the microphone/transmitter and sends a
composite signal to the receiver. e receiver transforms
the composite signal into an analog audio signal which
is fed to the multi-media amplier. e amplier powers
the speakers for even voice reinforcement throughout the
room.
e microphone / transmitter can be the Sapphire or
Handheld. e rechargeable batteries will provide 6 –
8 hours of service per charge. e drop-in charger will
recharge the batteries overnight, ready for another day’s
use.
Reliable
performance.
Use with
confidence.

3
front of IMA-120 receiver/amplifier
back of IMA-120 receiver/amplifier
Power on/o Indicator
Page sensitivity control
Bass/Treble equalizer ±12 dB
CH 1 Mic Volume Control
CH 2 Mic Volume Control
Speaker Output - Two Channel Four
pin Phoenix connector
Page Pass rough 2 pin Phoenix
Impedence selector 25V 70V 100V
Security Alert - Com, N.O.,N.C.
Two Sensor Inputs (RCA)
UPGRADE input Micro USB
RS-232 Switch (O/On)
RJ-45 Control Panel Jack
Power Input: 19 VDC 3.4A
Line 1 Volume Control
Line 2 Volume Control
Line Out Volume Control
Line 1 Input (3.5mm)
Line 2 Input (3.5mm)
Line Output (3.5mm)
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1
Matrix system
e Matrix 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 / amplier (IMA-120). e receiver/amplier
processes the signal and produces an analog signal of your voice for output to the
sound eld speaker system.
8910
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6
5
4
3
2
1
89
11
AUX2
IN
AUX1
IN
87654321
Remote Panel Port
CNONMOC
No Ethernet
IMA-120 rev 2018.10.24

owner’s manual
4
Matrix
infrared microphone/transmitters
e infrared microphone/transmitter is comprised of a microphone input, signal processing
circuits and several emitting diodes that transmit the vocal signal to the sensor.
e microphone/transmitter can be the Sapphire or Handheld. e 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.
e drop-in battery chargers are specically designed to recharge lithium & NiMH batteries
at an optimum rate for Matrixum operating capacity and extended service life. Charger will
automatically start charging the batteries upon insertion and will shi to a maintenance charge
when batteries are fully charged.
e 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 lter, the Sapphire can function as
a pass around hand mic.
e 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. e 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 battery
• 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/o󰀨 ” power
• Channel “A” or “B” selectable
• Three level microphone volume
switch
• (Normal, -3dB, -6dB)
• Auxiliary input (3.5mm)
• Wear with a lanyard or slide
directly on neckline collar
(IRT-60) sapphire transmitter

5
IRH-35 handheld transmitter
e Handheld Microphone Transmitter (IRH-35) is most
applicable for student use or direct presentation. It has
an “on/o” switch and a battery level indicator LED;
Green=useable charge, Red=low battery. e transmitter
has 10 emitting diodes: 8 around the bottom of the
handle, and 2 toward the top of the handle. e metal
housing provides low handling noise and insures durable
longevity.
features
• Condenser microphone ele-
ment
• Power “on/o󰀨 ” switch
• Battery level indicator—LED
• Channel “A” or “B” selectable
• 10 high-power emitting diodes
• Diodes at top and bottom of
handle for increased
Coverage (2 Top aimed out, 6
Bottom 360°,
2 Bottom aimed down)
• 360º IR radiation for assured
connectivity
• Two “AA”, Duracell, recharge-
able NiMH batteries
IRT-60 remote control features
1. Moving the priority switch Up/Down will control the
volume of the line inputs.
2. A momentary tap of the priority switch will duck
down the line inputs 15dB. e receiver front panel
power switch changes to a blinking PURPLE. A second
tap will restore line input back to normal.
3. Hold in priority switch for 4 seconds closes the contact
closure on the Security Alert output. e receivers
front panel power switch changes to blinking GREEN.
Holding the button down for another 4 sec. returns the
contact to normal.

owner’s manual
6
Matrix
BRC-60 drop-in battery charger
is stylish desktop drop-in charging station makes it
convenient and easy to recharge both Sapphire Pendant
and Handheld Microphones. Charge one IRH-35
handheld transmitter and up to two IRT-60 Sapphire
transmitters simultaneously. Charging indicator lights
illuminate Red when charging, and Green when fully
charged. e power LED illuminates Blue when plugged
in.
ICS-55 ceiling sensor
sensor cable
e ceiling sensor is the preferred infrared sensor for
optimum performance. is is the unit that needs to
be installed on the ceiling. It comes with a mounting/
support bracket and 50 feet of plenum rated cable with
RCA connector on each end. e ideal location for the
dome sensor would be in the center of the ceiling. is
will provide a clear signal path for the IR transmission
from the transmitter to the dome sensor without
obstruction. In addition, you will have 360° coverage and
will minimize the transmission distance for more reliable
performance. It collects the infrared transmission signal
via 6 large detecting diodes.
A cable connects the sensor to the receiver. e cable is
dual-shielded with a male RCA connector on each end
and is plenum rated.
Green light indicates that
the sensor is receiving
power from the receiver.
power “on” LED

7
installation of ICS-55 ceiling sensor
e ideal location for the ceiling sensor is in the center of the ceiling. is will provide a
clear signal path for the IR transmission from the transmitter to the dome sensor without
obstruction. In addition, you will have 360º coverage and will minimize the transmission
distance for more reliable performance.

owner’s manual
4
Matrix
8
Optional:
Two Additional Speakers
installation of speakers
installing two SP-628 ceiling speakers
• Determine the listening area.
• Divide listening area into two quadrants
• Locate and identify the center most tile in each quadrant
• Lay ceiling tile face down on clean at surface
• Lay tile bridge on ceiling tile and center it
• Trace and cut the large hole using a keyhole or drywall
saw
• Strip the speaker cable ends, approx. ½"
• Route speaker wire from speaker opening to amplier
• Reinstall ceiling tile with tile bridge in place above the
hole
• Pull speaker cable back down through speaker hole
• With a pointed tool or paper clip, li up and remove
speaker grille
• Set speaker on top of ladder and connect speaker cable
connect
• Observe speaker polarity, connect Red wire to (+)
terminal and black wire to the (C) terminal
• With the mounting clamps folded back, position
speaker into speaker hole
• With a #2 Phillips screwdriver, tighten the quick clamps
• Reinstall speaker grille and remove any soil or
ngerprints
• Repeat same for other speaker
Two wall mount or ceiling speakers can be powered by the receiver/amplier. It has two ampliers
(25 watts ea.). One speaker will be connected to each amplier.
Optional: Two additional speakers can be powered by the amplier. Connect two speakers in
parallel. en bring a cable from each pair to the amplier. Connect one pair to each amplier.

9
Optional:
Two Additional Speakers
installing SP-2000 wall mount speakers
• First observe the shape of the room: ceiling height, door
locations, windows, mounting surface, and seating area
• Ordinary installation would be to locate the speakers
on each side wall approximately even with the front row
of listeners
• Mount the speakers 6–7 feet above the oor
• Install the mounting brackets in the vertical (up/down)
orientation
• Mount brackets using the appropriate hardware
• Insert speaker with the tweeter in upper position
• Secure speaker in bracket with the hand fasteners
• Orient each speaker toward the center of that half of the
listening area
• Strip speaker cable ends ½” and connect to speaker
• Observe speaker polarity: Connect (+) wire (with printed
writing) to (+) terminal and (-) wire (unprinted &
textured) to the (-) terminal
• Route speaker cable to the receiver/amplier in a safe,
least visible, tidy manner
final connection of the system
With receiver/amplier located, speaker and sensor cables
neatly routed, we are ready to complete the installation.
• Cut the speaker wire to the appropriate length
• Strip about 3/8” o the end of each speaker wire.
• Twist the wire and if you have a soldering iron, tin
the wire ends
• Unplug the phoenix connector, insert (+) wire (with
printed writing) into either outside (+) terminal. Plug
the other (-) wire into center (-).
• Tighten set screws.
• Repeat for other pair and insert plug rmly into
speaker receptacle
• Plug power supply into AC outlet

owner’s manual
10
Matrix
wired in parellel
87654321
Remote Panel Port
CN ON MOC
No Ethernet
AUX2
IN
AUX1
IN
Lesson Capture
Recorder
Computer
Secruity Alert
Panel
Classroom
Paging Speaker
From
Page System
Ceiling Speakers
Ceiling Speakers
Ceiling Sensor
Infrared Transmitter
“Sapphire” IRT-60
Drop-in Charger
CPS-120 RS-232
Wall Control Panel
MP3 Player
MATRIX IMA-120 Wiring Diagram

11
system wiring
wired in parellel
87654321
Remote Panel Port
CN ON MOC
No Ethernet
AUX2
IN
AUX1
IN
Lesson Capture
Recorder
Computer
Secruity Alert
Panel
Classroom
Paging Speaker
From
Page System
Ceiling Speakers
Ceiling Speakers
Ceiling Sensor
Infrared Transmitter
“Sapphire” IRT-60
Drop-in Charger
CPS-120 RS-232
Wall Control Panel
MP3 Player
MATRIX IMA-120 Wiring Diagram

transmitterowner’s manual
page over-ride/page pass through
12
Matrix
e page over-ride feature allows you to connect the TeachLogic amplier to the school
paging/intercom system for muting purposes. A simple connection between the in-
classroom paging speaker (typically 25v, 70v or 100v) and the TeachLogic page input
will mute all the inputs and pass the page to the speakers connected to the TeachLogic
amplier
(a) Unplug the 2 pin green Phoenix connector
Connect the speaker cable from the paging system to the 2 pin
Phoenix connector of the Page input
Reconnect the 2 pin green Phoenix connector
(b) Determine the signal level of the paging system (25v, 70v, or 100v)
Set the slide switch to the appropriate speaker level setting
With the TeachLogic amplier turned ON, send a page signal
through the page input
(c) Adjust the page input SENSITIVITY control, located on front panel,
so that an incoming page/intercom signal will override any audio
(mics, line, etc) plugged into the TeachLogic amplier.

13
blank page
page input - source impedence selector
speaker output - phoenix connector
 g u r e ( a )
 g u r e ( c )
gure (b)
page sensitivity control

transmitterowner’s manual
14
Matrix
RS-232 connection
RS-232 features
e RS-232 feature allows the user to
remotely operate the line level media
inputs via the wall panel controller.
Audio levels very oen need to be adjusted
when switching from computer audio to
DVD players and other audio sources.
Such operations as level UP, DOWN and
MUTE are easily accomplished via the
eight button controller and touch rotary
dial, as shown here. is allows the
receiver/amplier to be placed in an area
or compartment that is not easily assessed
by the user. No Codes or set up is required
for this touch panel to operate. It is pre
programmed right out of the box.
note
When touch panel is not
connected, RS-232 switch must
be in "OFF" position for amplier
controls to function.