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LightSPEED
FP 100
Infrared Wireless Microphone System
User Manual
Page 2
FP100 User Manual
FP 100 User Manual
CONGRATULATIONS!
Congratulations on your purchase of the FP 100 Infrared Wireless
Microphone System! This simple, yet powerful technology adds the
benets of Classroom Audio to an existing amplier and speakers. This
system will seamlessly integrate into a sophisticated A/V control system.
With its small footprint, the FP 100 can mount in any discrete location—
whether it is an audio visual cabinet or below-ceiling tray.
The FP 100 is a compact, two-channel receiver that allows the use of up to
two wireless microphones simultaneously in the classroom. A standard IR
sensor provides high quality reception in rooms up to 1600 square feet. By
connecting additional infrared sensors to the receiver, the coverage area
can be expanded to provide optimal reception in varying room sizes and
congurations.
The LT-71 LightMic™ is a two-channel, rechargeable microphone that is
clipped to a lavaliere cord and worn around the neck for teacher use, or
it can be used as a standard handheld microphone for students to pass
around when speaking.
FP 100 User Manual | i
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SAFETY INSTRUCTIONS
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
The lightning ash with arrowhead symbol
within an equilateral triangle is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product’s
enclosure, that may be sufcient magnitude to
constitute a risk of electric shock.
The exclamation point within an equilateral
triangle is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
1.Read Instructions—All the safety
and operation instructions should
be read before this LightSPEED
product is operated.
2. Retain Instructions—The safety and
operating instructions should be
kept for future reference.
3.Heed Warning—All warnings
on this LightSPEED product and
in these instructions should
be followed.
FP 100 User Manual
FP 100 User Manual
7. Power Sources—This LightSPEED
product should be connected to a
power supply only of the type
described in these operation
instructions or as marked on this
LightSPEED product.
8. Power Cord Protection—Power supply
cords should be routed so that
they are not likely to be walked upon
or pinched by items placed upon or
against them.
9. Object and Liquid Entry—Care
should be taken so that objects do not
fall onto and liquids are not spilled into
the inside of this LightSPEED product.
0. Damage Requiring Service—This
1
LightSPEED product should be
serviced only by qualied service
personnel. The user should not
attempt to service this
LightSPEED product.
1. Prevent Electric Shock—do not use
1
this polarized plug with an extension
cord, receptacle or other outlet
unless the blades can be fully
inserted to prevent blade exposure.
4.Follow Instructions—All operating
and other instructions should
be followed.
5. Water and Moisture—This
LightSPEED product should not be
used near water.
6. Heat—This LightSPEED product
should be situated away from heat
sources such as radiators, etc.
ii | FP 100 User Manual
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FP100 User Manual
FP 100 User Manual
TABLE OF CONTENTS
FP 100 INFRARED WIRELESS MICROPHONE SYSTEM
Safety Instructions ................................................................................................... ii
System Components ................................................................................................ 1
Controls and Connections ........................................................................................ 2
Front and Top Panel Controls ................................................................................ 2
Rear Panel Controls .................................................................................................. 3
LightMic Controls and Connections .......................................................................... 4
Optional Handheld Controls and Connections .......................................................... 5
System Installation .................................................................................................. 6
Unpacking Your System ........................................................................................ 6
Location of the Receiver ........................................................................................ 6
FP 100 Audio Connection ...................................................................................... 6
FP 100 Mixed Audio Connection ........................................................................... 8
IR Sensor Installation ............................................................................................... 9
Suspended Ceiling Mount ..................................................................................... 9
Wall/Solid Ceiling Mount ....................................................................................... 9
Finalizing Receiver Connections ............................................................................. 10
Final Check ......................................................................................................... 10
Initial Set-Up .......................................................................................................... 11
Initial Set-Up: Optional HM-70 Handheld Mic ......................................................... 12
Charging the LightMic ............................................................................................ 13
Charging the HM-70 Handheld Mic ......................................................................... 14
Troubleshooting Guide ............................................................................................ 15
Daily Use Instructions ............................................................................................. 16
Tips on Classroom Audio ........................................................................................ 17
Warranty Statement ............................................................................................... 17
System Specications ............................................................................................ 18
Individual Components and Optional Accessories .................................................. 19
User Notes ............................................................................................................. 20
FP 100 User Manual | iii
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SYSTEM COMPONENTS
FP 100 Infrared Wireless Microphone System
SR-70F Infrared
Sensor
Power Supply
FP 100 User Manual
Sensor Cable
LT-71 LightMic™
Transmitter
Audio Patch Cable
Helpful
Hint
1 | FP 100 User Manual
Charger
Optional HM-70 Handheld Microphone
Keep ALL packaging materials. If the system must
be returned, using the original packing material
will be quick, convenient and prevent damage.
Page 6
CONTROLS AND CONNECTIONS
FP100 User Manual
1
3
3
4
Front and Top Panel Controls
1. CH. A VOLUME: sets the nominal
volume level of the teacher
microphone (transmitter switched
to CH A). Rotating the adjustment
knob clockwise increases the
output level.
2. CH. B VOLUME: sets the nominal
volume level of the optional
second microphone (transmitter
switched to CH B). Rotating
the adjustment knob clockwise
increases the output level.
3. IR INDICATORS (IR): These lights
will glow red when the
corresponding transmitter is
turned on and being received.
This light conrms the FP 100 is
receiving a steady infrared signal.
4. AF INDICATORS (IR): These lights
ash green when audio (voice)
from the microphone is detected.
2
5
6
5. DC POWER INPUT: Plug the 24V
power supply into this jack.
6. CH. A AUDIO OUTPUT: This
balanced audio output can be
connected to a microphone or line
input on a mixer/amplier to
amplify the audio signal from the
CH. A transmitter.
7. CH. B / MIXED AUDIO OUTPUT:
This balanced audio output sends
the audio from the microphone set
to CH. B. Both CH. A and CH. B
transmitters (depending on the
position of the B/MIX switch) are
ouput to a microphone or line input
on a mixer/amplier.
8. B/MIX SWITCH: This switch
determines the audio source
that is output through the CH.B/
MIXED Audio Output jack. When
the switch is set to ‘MIX’ (default),
both the CH. A and CH. B signal are
output through this jack.
7
8
FP 100 User Manual | 2
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REAR PANEL CONTROLS
FP 100 User Manual
1
1. SENSOR SHORT: This LED glows
when there is a short in one of
the sensor cables.
2
2. SENSOR INPUT: The IR sensor
cable connects to the sensor input
jacks. Connect additional sensors to
the FP 100 to cover large or
odd-shaped rooms.
3 | FP 100 User Manual
Page 8
FP100 User Manual
LT- 71
LT- 71
LIGHTMIC CONTROLS AND CONNECTIONS
4
5
6
1. ON/OFF/MUTE Switch: This switch,
located on the side of the LightMic,
turns the unit on or off/mute.
2. Channel Select Switch (CH A/B):
This switch allows for selection
between Channel A or B. If you are
using a single microphone/
transmitter for your system, we
recommend using Channel A.
3. Power/Charge LED Indicator: The
light glows blue when the LightMic
is powered ON, red when plugged
into the charging cable.
4. External Microphone Input (MIC):
Use the 3.5 mm MIC jack for the
optional TK-250 headset microphone
(part# MC-TK250LTM).
1
2
3
5. Auxiliary (AUX): Plug a laptop, MP3
player or other audio source into
this jack to wirelessly transmit the
audio signal to be played through
the FP 100.
6. Charger Input (CHARGER): Plug
the charging cable from the FP 100
into this jack for daily charging.
The LED on the front will glow red
to indicate charging.
FP 100 User Manual | 4
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FP 100 User Manual
OPTIONAL HANDHELD CONTROLS AND CONNECTIONS
3
1
4
6
NiMH
2
5
1. ON/OFF/MUTE Switch: This switch,
located on the side of the LightMic,
turns the unit ON or OFF/MUTE.
2. Channel Select Switch (CH A/B):
Located in the battery compartment,
the switch is set to Channel B at
the factory.
3. Power/Charge LED Indicator: The
light glows red when the LightMic
is powered ON.
4. Charger Input (CHARGER): Plug
the charger into this jack for daily
charging. The LED on the front
will glow red to indicate charging.
5 | FP 100 User Manual
5. Infrared Emitters: Avoid covering
the emitters as you grip the HM-70
or this could interrupt signal
transmission from the microphone
to the receiver.
6. Volume Gain Switch: Located in
the battery compartment,
microphone volume can be
increased by gently turning the
screw. Optimum volume level is
pre-set at the factory and no
adjustment should be necessary.
Page 10
SYSTEM INSTALLATION
FP100 User Manual
Unpacking Your System
Ensure that you have received all of
the components of your system.
• FP 100 Receiver and power
supply
• LT-71 LightMic™ Transmitter
• SR-70F Infrared Sensor
and cable
• Transmitter Wall Charger
• Audio Patch Cable
FP 100 Audio Connection
1. Locate the audio patch cable
2. Strip the cable’s rubber insulation ½”
and then strip the outer sheath of the
signal wire leaving ¼” exposed.
Location of the Receiver
Place the FP 100 on a at surface like a
cabinet, shelf, or tray.
• Select a location that is close to a
standard wall electrical outlet.
• Sensor Cable will be routed back to
the receiver, so select a location that
is free from obstructions that may
make routing wire difcult. (Example:
under a whiteboard or bulletin board.)
FP 100 User Manual | 6
Page 11
FP 100 User Manual
SYSTEM INSTALLATION (cont’d)
3. Insert the stripped wires into the marked openings, left and right, in
the Euro-block.
Euro-block
4. Secure the inserted wires by tightening the retaining screws.
7 | FP 100 User Manual
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FP100 User Manual
SYSTEM INSTALLATION (cont’d)
4. Ensure the B/MIX switch is pushed to the right to select the MIXED output.
5. Connect the ¼˝ connector into the
audio or microphone input on the
existing amplier.
FP 100 Mixed Audio Connection (Not Recommended)
This method allows for individual control of each microphone channel from the
amplier being used.
a. Obtain a second balanced audio cable.
b. Strip the wire to reveal the positive, negative, and grounded conductors.
c. Fasten the wire to the available CH A euro-block connector using a small screw
driver (observe the proper polarity).
FP 100 User Manual | 8
Page 13
IR SENSOR INSTALLATION
Sensor Placement in the Classroom
Sensor location is very important for optimum performance
of the FP 100 IR Wireless Microphone System.
• BEST: On the ceiling at or near the middle of the
classroom.
• GOOD: High and centered on the long wall.
• AVOID: Locations in corners, on walls at heights
lower than 7 feet, or in places where the signal
could be obstructed.
FP 100 User Manual
< GOOD
< BEST
Suspended Ceiling Mount
1. Lift the ceiling tile nearest the
grid rail in your desired sensor
location. Guide one side of the
C-clip over one edge of the grid
rail. Providing rm support to the
back of the grid rail with one hand
(to prevent bending), rmly and
carefully snap the second side of
the C-clip over the edge of the rail.
2. Uncoil sensor wire. Connect one
end of the sensor cable to the plug
on the sensor. Loosely secure wire
overhead and route it back to the
FP 100.
3. Connect the other end of the
sensor cable into one of the sensor
inputs on the back of the FP 100.
Wall/Solid Ceiling Mount
wall
mounting
strip
c-clip
sensor jack
1. Screw the plastic mounting
strip to a place high on the
wall or in the middle of the solid
ceiling. Mount the strip horizon tally as shown above.
2. Firmly snap the C-clip on the back
of the IR sensor onto the plastic
mounting strip with the sensor
plug hanging down (if a wall
mount) or toward the receiver
location (if ceiling mount).
3. Uncoil the sensor wire. Screw one
end of the sensor cable to the
plug on the sensor. Route the
wire back to the FP 100,
securing it along the way.
4. Connect the other end of the
sensor cable to one of the sensor
inputs on the FP 100.
9 | FP 100 User Manual
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FP100 User Manual
FINALIZING RECEIVER CONNECTIONS
1. Ensure all top panel volume
controls are turned fully
counterclockwise.
3. Ensure sensor cable is attached
securely.
2. Ensure audio output connection(s) are
securely connected into the FP 100 and the
mixer/amplier. Make sure the CH.B/MIX
switch is in the appropriate setting based on
your output method (see pg. 11 for
more info).
4. Ensure DC barrel end of the power
supply is connected to the DC input
on the FP 100.
5. Ensure AC adaptor end of the power
supply is connected to a standard
110 VAC electrical wall outlet.
FINAL CHECK
1. Ensure all cables are appropriately routed out of walking paths and work areas to
prevent safety hazards to individuals in the room.
2. The receiver packing material should be kept for warranty shipping purposes.
Dispose of remaining system-packing material in the appropriate refuse containers.
Leave microphones charging so they are ready for use.
Microphones will need to be charged on a daily basis.
FP 100 User Manual | 10
Page 15
FP 100 User Manual
INITIAL SET-UP
1. Slip the LT-71 LightMic with lanyard around your
neck and position the top of the microphone
just below your collarbone.
Positioning of the LightMic is critical for
proper volume adjustment.
2. Turn on the LightMic and
set the operating channel
to “A.” This microphone
will be designated as the
“Teacher Mic.”
3. Set the volume on the mixer/amplier at a normal level. This will be the primary
control the teacher will use to turn the microphone volume(s) up and down.
4. While speaking in a normal voice, increase the
A VOLUME level until your own voice is
barely audible.
Remember: this equipment is designed to
supplement and distribute the teacher’s voice
so he or she is able to speak at a normal,
conversational tone. Having the volume set too
high will result in feedback and listener fatigue.
5. If a second student pass-around microphone
was purchased, set the volume level for that
transmitter as indicated above, using the B
VOLUME control.
6. Once the normal level is set on the FP 100, the user will now use the
mixer/amplier volume control to adjust the microphone up or down during
normal classroom operation.
11 | FP 100 User Manual
>>
Page 16
FP100 User Manual
INITIAL SET-UP: OPTIONAL HM-70 HANDHELD MIC
ON
MUTE
(Center Position)
1. Slide the power switch on the side
of the HM-70 all the way up. The
power indicator LED will glow red
and stay on.
2. The center position of the power
switch is MUTE. When in this
mode, the HM-70 is transmitting
a signal, but no audio can be
heard through the system. This is
useful if you wish to temporarily
turn audio off during a private
conversation.
OFF
3. Grip the barrel of the HM-70 in the
center section just below the power
switch. Avoid gripping the HM-70
around the bottom, covering the
infrared emitters circling the base.
This could interrupt signal
transmission from the microphone
to the receiver.
4. Speak directly into the microphone
at a normal level. Slowly increase
the B VOLUME until you can just
hear your voice.
5. Slide the switch to the OFF position
to turn off the HM-70. (Make sure
the power indicator light is off.)
The Channel A/B switch is located
inside the battery compartment.
The switch is set to Channel B at
the factory.
FP 100 User Manual | 12
Page 17
CHARGING THE LIGHTMIC
1. Ensure that the LightMic is turned OFF.
FP 100 User Manual
2. Make sure the wall charger is plugged into a wall outlet.
charging plugs into the jack labeled CHARGER on the side of the LT-71.
The LT-71’s rechargeable batteries are factory installed.
the LightMic will glow red when charging.
3. Leave the LightMic plugged in overnight
(8–10 hrs.) to obtain a full charge.
Connect one of the
The LED on the front of
Helpful Hint
Do not attempt to charge alkaline batteries. They can
overheat and expand, creating a signicant hazard and
damaging the LightMic. (This is not covered by the warranty.)
13 | FP 100 User Manual
Page 18
FP100 User Manual
CHARGING THE HM-70 HANDHELD MIC
1. Ensure the HM-70 handheld
microphone is turned OFF (ON/OFF
switch on the side of the unit).
2. Make sure the wall charger is
plugged into an electrical outlet.
Connect one of the charging plugs
into the jack labeled CHARGER on
the side of the HM-70. The HM-70’s
rechargeable batteries are factory
installed.
Helpful
Hint
3. The power indicator light next to
the power switch glows green
when the cable is connected and
charging correctly. The light goes
out when fully charged. Batteries
will charge in 8 to 12 hours. A fully
charged battery will run for up to 8
hours of continuous operation.
All LightSPEED microphone transmitters
can remain charging for up to 10 days.
Overcharging will not create a hazard, but
will shorten battery life.
FP 100 User Manual | 14
Page 19
FP 100 User Manual
TROUBLESHOOTING GUIDE
Note: Most problems are directly related to low battery power. Please run through
the “Battery Check” items rst. For remaining troubleshooting, use known good,
fully-charged batteries.
Battery Check
• Conrm batteries are charged
each night.
• Make sure the LT-71 is turned off
while charging so that it will attain a
full charge. Full charge will last eight
hours.
• Make sure the charge cord is
connected to the cradle charger.
• Inspect the battery contacts. Clean
and adjust if necessary.
Hearing Static
• Ensure sensor is in optimum location
(refer to sensor placement in
manual). A single sensor will cover a
1600 sq. ft. enclosed classroom.
• Ensure that no other LT71/HM70 is
operating on the same channel.
• If an external microphone is in use,
try another LightMic that is known
to be working (if available) to isolate
the problem. If static persists with
“known good” microphone, the LT-71
input jack has damage and will need
service.
Low Volume or Feedback
• Ensure microphone is positioned
appropriately, just below the collar
bone. If a headset microphone is in
use, the end of the mic boom should
be positioned at the corner of the
mouth.
• Check volume level on the amplier/
mixer (or wall-mounted controller). If
the volume is set too high, feedback
WILL occur—adjust accordingly.
• Check volume levels on the FP 100.
The screwdriver adjust controls
should be set at a normal level so
that volume is appropriate for the
classroom when the corresponding
mixer/amplier volume level is at
mid-range. Adjust the levels up or
down accordingly.
No Sound
• Conrm the transmitter is on as
indicated by a Blue LED on the
LightMic or a Red LED on the HM-70
Handheld mic.
• Conrm signal is being received at
the FP 100. The IR signal light will be
lit (red) indicating a signal is being
received.
• Conrm microphone is functioning.
Next to the IR signal light is the AF
signal light. This light will icker
(green) as audio is picked up by the
microphone indicating activity.
• Ensure the IR sensor is receiving
power as indicated by a red LED on
one side of the unit—this should be
easily visible from the ground.
• If no indicator lights are present on
the FP 100, ensure it is receiving
power. Unplug the DC power jack
and re-connect. If the receiver is
receiving power, the IR and AF lights
will ash on when reconnected to a
power source.
• Ensure the separate mixer/amplier
is operating properly as a stand-
alone system.
If you review these instructions and still have questions, write down the serial
number and model number of your system and call LightSPEED Technical
Services at 800.732.8999, 5 a.m. – 5 p.m. PST.
15 | FP 100 User Manual
Page 20
DAILY USE INSTRUCTIONS
A CH B
OFF
ON
POSITION THE LIGHTMIC
Unplug the LightMic from the charger and place it
around your neck. Adjust the neck strap so the top of
the microphone rests just below your collarbone.
FP100 User Manual
TURN ON THE LIGHTMIC
Turn the microphone ON using
the ON/OFF switch on the side of
the LightMic
and speak nor-
mally.
Set the
channel switch
to A.
CHARGE BATTERIES
Plug the LightMic into the Wall Charger
to recharge at the end of the day.
FP 100 User Manual | 16
Page 21
FP 100 User Manual
TIPS ON CLASSROOM AUDIO
Speak in a natural voice. A normal conversational speech level
will provide an adequate signal. It is not necessary to increase
the intensity of your voice—the audio system provides
adequate amplication (approximately 5 – 10 dB) above
1
2
3
4
ambient room noises.
Avoid wearing jewelry that may rub or bump against
the microphone.
Turn the LightMic off during private conversations with a student,
parent, or other classroom visitor. You can also cover the LED
lens on top of the LightMic to block the signal.
Recharge batteries each night. When recharged nightly, operating
time (actual usage) for the transmitters will last through a typical
school day.
Five-year Limited Warranty
LightSPEED Classroom Audio Systems are guaranteed against malfunction due to defects
in materials and workmanship for a period of FIVE (5) YEARS, beginning at the date of
the purchase invoice. If such malfunction occurs, the product will be repaired or replaced
(at LightSPEED’s option) without charge during the warranty period.
1. Warranty on infrared microphones is FIVE (5) YEARS.
2. Warranty on LightSPEED NH1 AA rechargeable batteries, all external cables and wires
provided by LightSPEED is one (1) year.
3. Prepaid shipping labels are provided by LightSPEED factory or an authorized warranty
service center for warranty repairs.
4. Warranty does not extend to nish, appearance items, or malfunctions due to abuse
or operation other than specied conditions, nor does it extend to incidental or
consequential damages. Repair by other than LightSPEED or its authorized service
agencies will void this guarantee. Information on authorized service agencies is
available from LightSPEED Technologies, Inc.
Our Service Department (800.732.8999, 5 a.m. – 5 p.m., PST)
will handle all your repair/replacement needs.
17 | FP 100 User Manual
Page 22
FP100 User Manual
SYSTEM SPECIFICATIONS
OVERALL SPECIFICATIONS
Standard Carrier Frequencies (IR) 2.06/2.54 MHz
Alternative Carrier Frequencies (IR) 3.2/3.7 MHz
Frequency Stability ± 3%
Maximum Deviation ±50 Hz
Dynamic Range > 73 dB
Signal-to-Noise Ratio > 73 dB
Frequency Response 100 Hz – 10 kHz
Audio Output Level 0 – 1.0 V
RECEIVER SPECIFICATIONS
Receiver Type Superheterodyne
Receiver Sensitivity 6 µV for 60 dB S/N
Image and Spurious Rejection > 70 dB
Reception Selectivity 40 kHz
Squelching Mute Level 3.2 µV
Sensor Inputs (F-connector) 2 Input
Sensor Short Indicator Yes
Power Supply (UL Listed) 24 V / 250 mA
Weight
Dimensions (W x D x H)
TRANSMITTER SPECIFICATIONS
Audio Distortion < 1 %
Built-in Microphone Unidirectional Electret
Battery Power (1-year warranty) 2 AA NiMH Rechargeable
Inputs Mic Level 3.5 mm
Line Level 3.5 mm
Dimensions (W x D x H) 1.375” x .75” x 4.625”
Weight 3.7 oz.
IR SENSOR SPECIFICATIONS
Working Range Up to 1600 square feet
Cable 6 ft./50 ft., Plenum-rated
Mounting Ceiling clip/Wall bracket
Dimensions 4.25” (Diam.) x 2.0” (H)
Weight 4.5 oz.
FP 100 User Manual | 18
Page 23
FP 100 User Manual
INDIVIDUAL COMPONENTS & OPTIONAL ACCESSORIES
Part Number
Description
RX-FP100
LT71
BA-NH1
AC-LTCB
PS-24V-250
SR70F
BC-TXLT
Infrared microphone receiver
LightMic rechargeable microphone/transmitter
w/lavaliere cord, batteries and charging cable
Rechargeable AA battery (Nickel Metal Hydride)
Lavaliere cord for LT-71
Power supply
Infrared sensor with cable and wall or ceiling mounting
bracket
Wall Charger
Optional Accessories
HM70
AC-71CC
MC-TK250LTM
SPEAKERS
19 | FP 100 User Manual
Handheld microphone/transmitter w/batteries and
charging cable
Cradle charger
Noise-canceling headset microphone to be used
with LT-71
Contact LightSPEED at 800.732.8999 for loudspeaker
information
Page 24
USER NOTES
FP100 User Manual
Record your system serial numbers and
purchase information. This is helpful
when ordering additional components,
accessories, and/or warranty service.
Components
FP 100
Microphones
Sensors
Speakers
Purchase Information
Your School/Organization
Serial Number
District
Purchase Date
Invoice
FP 100 User Manual | 20
Page 25
USER NOTES
FP 100 User Manual
21 | FP 100 User Manual
Page 26
AC-MN100
LightSPEED Technologies, Inc.
11509 SW Herman Rd
Tualatin, OR 97062
800.732.8999
www.lightspeed-tek.com
MK-MN0010608-0
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