Lightspeed 705iR User manual

705iR
Portable Audio System
Lightspeed Technologies, Inc.
11509 SW Herman Rd
Tualatin, OR 97062
800.732.8999
www.lightspeed-tek.com User Manual
AC-MN705
MK-MN0020908-1
DAILY REDMIKE USE
TURN ON THE REDMIKE
CHARGE BATTERIES
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 amplication (approximately 5 – 10 dB) above
ambient room noises.
Avoid wearing jewelry that may rub or bump against
the microphone.
Turn the REDMIKE off during private conversations with a
student, parent, or other classroom visitor. You can also cover
the LED lens on top of the REDMIKE 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.
1
2
3
4
START OF THE DAY
Turn the
microphone
ON using the
ON/OFF switch
on the side of
the REDMIKE
and speak
normally. Set
the channel
switch to A.
Return the
REDMIKE to
the cradle
charger and
recharge the
REDMIKE at
the end of
the day.
Remove the REDMIKE
from the charger and
place it around your
neck. Adjust the neck
strap so the top of the
microphone rests just
below your collarbone.

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705iR User Manual
CONGRATULATIONS!
Congratulations on your purchase of the 705iR Portable Infrared
Audio System! Please take a moment to review this manual, as it will help
you operate this easy-to-use system, and maximize your investment by
caring for and maintaining each component.
The 705iR is a lightweight, multi-purpose, portable audio system powered
by rechargeable batteries or AC power. It is designed to allow teachers to
speak in normal conversational tones and yet be heard clearly by every
student in the classroom.
The 705iR comes standard with the REDMIKE™ pendant-style
classroom microphone. The system may be used with two microphones
accommodating team teaching or student interaction. The second
microphone can be an additional REDMIKE, LT-71 or the HM-70 handheld
microphone.

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705iR User Manual
1. Read Instructions—All 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 Warnings—All warnings on
this Lightspeed product and in these
instructions should be followed.
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.
7. Power Sources—This Lightspeed
product should be connected
to a power supply only of the
type described in the 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 Lightspeed product.
10.Damage Requiring Service—This
Lightspeed product should be serviced
only by qualied service personnel.
The user should not attempt to service
this Lightspeed product.
11.Prevent Electric Shock—Do not use
this polarized plug with an extension
cord, receptacle or other outlet unless
the blades can be fully inserted to
prevent blade exposure.
SAFETY INSTRUCTIONS AND CERTIFICATIONS
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
RISK OF ELECTRIC SHOCK DO NOT OPEN
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 sufcient 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.
CAUTION

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705iR User Manual
TABLE OF CONTENTS
705iR PORTABLE CLASSROOM AUDIO SYSTEM
Safety Instructions and Certications ........................................................................ii
SECTION 1: System Overview ................................................................................. 1
System Components ............................................................................................. 2
705iR Controls and Connections............................................................................ 3
REDMIKE Controls and Connections ...................................................................... 5
Cradle Charger Connections.................................................................................. 6
Optional LT-71 Controls and Connections .............................................................. 7
Optional HM-70 Controls and Connections ............................................................ 8
SECTION 2: Set-up................................................................................................... 9
Unpacking Your System .................................................................................................... 10
Positioning the 705iR ........................................................................................................ 11
SECTION 3: Initial Set-up, Charging and Optional Features ................................12
Initial Set-Up: REDMIKE ........................................................................................13
Initial Set-Up: Optional LT-71 ................................................................................14
Initial Set-Up: Optional HM-70 ..............................................................................15
Charging the 705iR...............................................................................................16
Charging the REDMIKE .........................................................................................17
Charging the Optional LT-71 .................................................................................18
Charging the Optional HM-70 ...............................................................................19
Output to Personal FM Transmitter .......................................................................20
SECTION 4: Troubleshooting, Daily Use and Warranty.........................................21
Troubleshooting Guide..........................................................................................22
Daily Use Instructions...........................................................................................23
Tips on Classroom Audio ......................................................................................24
Warranty Statement .............................................................................................24
System Specications ..........................................................................................25
Individual Components and Optional Accessories ................................................26
User Notes............................................................................................................27

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SECTION 1
System Overview

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SYSTEM COMPONENTS
Keep ALL packaging materials. If the system must be returned, using the
original packing material will be quick, convenient and prevent damage.
705iR Receiver/Amplier,
Power Supply, and Carry Bag
REDMIKE Classroom
Microphone
Optional LT-71
LightMic and
Charger Cable
Optional HM-70 Handheld
Microphone and Charger Cable
Charging Cradle and Power Supply
LT- 71
Helpful Hint
705iR
CHA CHB TREBLE BASS AUX AUX
POWER IN OUT

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705iR CONTROLS AND CONNECTIONS
Top Panel
1. CH A POWER: This knob turns on
the power for the 705iR and
controls the Channel A volume.
We recommend using Channel A if
you are using a single microphone
for your system. Turn the knob
clockwise to increase volume.
2. The LED light located above the
CH A POWER knob turns red
momentarily when the system
power is turned ON.
When a transmitter/microphone
set to Channel A is turned on, the
Channel A LED glows green to
indicate your transmitter’s signal is
being received by the amplier.
3. CH B VOLUME: This knob controls
the volume for Channel B. You must
rst turn the 705iR ON with the
CH A POWER knob, then turn the
CH B VOLUME knob clock-wise to
increase volume. Use Channel B
when using a second microphone.
4. The LED above CH B VOLUME
turns green to indicate a signal is
being received from a microphone/
transmitter set to Channel B.
5. TREBLE: This knob controls the
high-frequency sound of the 705iR.
Classroom Audio System.
6. BASS: This knob controls the low-
frequency sound of the 705iR.
7. AUX IN VOLUME: This knob
controls the volume level of an
external audio source that is
plugged into the AUX IN jack. An
example would be a computer, iPod,
or CD player.
8. AUX INPUT JACK: This 3.5 mm jack
is used to connect to an external
audio source.
9. AUX OUTPUT JACK: This 3.5 mm
jack provides a line-level audio
output that can be connected
to a personal FM system or tape
recorder.
10. AUX OUT VOLUME: This knob
controls the audio level going to
external equipment when plugged
into the AUX OUT jack. For example,
a personal FM transmitter or tape
recorder.
1 2 3 4 5 6 7 8 9 10

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705iR CONTROLS AND CONNECTIONS (cont’d)
Rear Panel
11. TRANSMITTER CHARGING
JACKS: This connector is used to
connect the charging cable to the
optional LightMic transmitter or
the optional HM-70 handheld
microphone for daily battery
recharging.
12. EXTERNAL IR SENSOR JACK:
This jack is provided for
connection of an additional
sensor (for larger or
odd-shaped rooms).
13. CHARGING LED: This LED glows
red when the 705iR battery is
charging and glows green when
fully charged.
14. DC POWER INPUT JACK:
This input connects to the 16 V
AC/DC adaptor that comes with
the 705iR. The adaptor is used to
either charge the internal battery
pack or power the 705iR with
AC power.
EXT SENSOR
www.Lightspeed-tek.com
800-732-8999
DC POWER
CHARGER OUT
11
14
13
12

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1. POWER BUTTON: Press this button
to turn the REDMIKE ON, press
again to turn it OFF (mute).
2. POWER/LOW BATTERY INDICATOR:
A BLUE light indicates the REDMIKE
is on and fully charged. A RED light
indicates a charge is needed.
3. BATTERY COMPARTMENT: To
access the battery compartment,
slide the door downward.
The battery should only be
replaced by a Lightspeed AA
rechargeable sensing battery
(part # BA-NH2A27).
4. AUDIO/MICROPHONE INPUT: Use this
input to plug in a laptop, MP3 player
or other audio source to wirelessly
transmit audio to be played through
the system. Alternatively, an external
microphone can be connected.
5. CHANNEL SELECT SWITCH (CH A/B):
This switch allows for selection between
Channel A or B. If you are using a single
microphone, we recommend using
Channel A.
6. CHARGER CONTACTS (+ -): These
contacts interface with the charging
tabs in the BC-RMCC cradle charger
for daily charging. Simply place the
REDMIKE in the charger.
REDMIKE CONTROLS AND CONNECTIONS
1
2
3
4
5
6

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1. CHARGE INDICATORS: The light
glows RED while the REDMIKE is
charging. When fully charged, the
light will glow GREEN.
2. DC POWER PORT: Connect the DC
power cord here.
3. OPTIONAL CHARGING PORT: Plug the
charging cord for the optional LT-71 or
the HM-70 microphones here.
CRADLE CHARGER CONTROLS AND CONNECTIONS
1
2
3

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1. ON/OFF/MUTE Switch: This switch
turns LT-71 ON or OFF (mute).
2. Channel Select Switch (CH A/B):
This switch allows for selection
of Channel A or B. If you are
using a single microphone, we
recommend using Channel A.
3. Power/Charge Indicator: The
light glows BLUE when the LT-71
is powered ON, RED when being
charged.
4. External Microphone Input (MIC):
Use the 3.5mm MIC jack for the
optional TK-250 headset microphone
(part# MC-TK250LTM).
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 system.
6. Charger Input (CHARGER): Plug
the charging cable from the
charger into this jack for daily
charging. The LED on the front will
glow RED to indicate charging.
OPTIONAL LT-71 CONTROLS AND CONNECTIONS
LT- 71
LT- 71
1
2
4
5
63

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OPTIONAL HM-70 CONTROLS AND CONNECTIONS
1
5
34
1. ON/OFF/MUTE Switch: This switch
turns the unit ON, OFF or 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 Indicator: The
light glows RED when the HM-70
is powered ON, GREEN when
charging.
4. Charger Input (CHARGER): Plug
the charging cable from the charger
into this jack for daily charging.
5. Infrared Emitters: Avoid covering
the emitters as you grip the HM-70
as this could interrupt signal
transmission from the microphone.
6. Volume Gain Adjustment:
Optimum volume level is
pre-set at the factory and no
adjustment should be necessary.
62
NiMH

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SECTION 2
Set-up

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Ensure that you have received all of the components of your system.
REDMIKE Classroom
Microphone
Optional LT-71
LightMic and
Charger Cable
Optional HM-70 Handheld
Microphone and Charger Cable
LT - 71
705iR
CHA CHB TREBLE BASS AUX AUX
POWER IN OUT
1. UNPACKING YOUR SYSTEM
705iR Receiver/Amplier,
Power Supply, and Carry Bag
Charging Cradle and Power Supply

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2. POSITIONING THE 705iR
The 705iR has a built-in speaker, which should be directed toward the area of the
classroom where the students are sitting. The unit can be placed on a table top or
bookshelf at a height of 36 to 60 inches.
The ideal position in the classroom is centered along the longest wall. However, due
to different classroom setups, this is not always possible. Here is a quick guide to
choosing a location:
• BEST: Centered on the longest wall.
• GOOD: Centered on the short wall.
• OKAY: In a corner.
• AVOID: Placing the unit directly in front of a window.
Best placement Okay placement
Good placement
Longest wall Short wall

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SECTION 3
Initial Set-up, Charging and
Optional Features

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3. Slip the REDMIKE with lanyard around the neck
and position the top of the microphone just below
the collarbone. NOTE: Positioning of the REDMIKE is
critical for proper volume adjustment.
4. While speaking in a normal voice slowly increase
the volume of the corresponding channel
on the 705iR until your voice is barely
audible. REMEMBER: This equipment
supplements the user’s voice so they
are able to speak in a conversational
tone. Having the volume set too high will
result in feedback and listener fatigue.
INITIAL SET-UP: REDMIKE
5. If asecond REDMIKE was
purchased, repeat steps 2-4.
NOTE: Each REDMIKE has its
Channel pre-set to either A or
B. No further adjustment is
necessary.
1. Turn the 705iR power knob clockwise.
The LED above the CH A POWER
switch will ash RED one time to
indicate the power is on.
2. Turn on the REDMIKE.
On the 705iR, the GREEN IR
LED above the CH A POWER
knob will light to indicate a
signal is being received.

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INITIAL SET-UP: OPTIONAL LT-71
A CH B OFF ON A CH B OFF ON
3. Slip the LT-71 with lanyard around the
neck and position the top of the micro-
phone just below the collarbone.
NOTE: Positioning of the LT-71 is critical
for proper volume adjustment.
1. Turn the 705iR power knob clockwise.
The LED above the CH A POWER
switch will ash RED one time to
indicate the power is on.
2. Turn on the LT-71 and
set the channel to
B. On the 705iR, the
GREEN IR LED above
the CH B knob will light
to indicate a signal is
being received.
4. While speaking in a normal voice,
increase the CH B volume level
until your voice is barely audible.
REMEMBER: This equipment is
designed to supplement and
distribute the user’s voice
so they are able to speak
in a conversational tone.
Having the volume set too
high will result in feedback
and listener fatigue.

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INITIAL SET-UP: OPTIONAL HM-70
3. Grip the barrel in the center section.
Avoid covering the infrared emitters
circling the base. This could interrupt
signal transmission.
1. Turn the 705iR power knob clockwise.
The LED above the CH A POWER
switch will ash RED one time to
indicate the power is on.
4. While speaking in a normal voice,
increase the CH B volume level
until your voice is barely audible.
REMEMBER: This equipment is
designed to supplement and
distribute the user’s voice
so they are able to speak
in a conversational tone.
Having the volume set too
high will result in feedback
and listener fatigue.
2. Turn on the HM-70 by
sliding the switch to the
top position. On the 705iR,
the GREEN IR LED above
the CH B knob will light to
indicate a signal is being
received. The HM-70 is set
to Channel B at the factory.

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EXT SENSOR
www.Lightspeed-tek.com
800-732-8999
DC POWER
CHARGER OUT
CHARGING THE 705iR
1. Ensure the power knob
(CH A POWER) on top of
the 705iR is turned off.
2. Plug the power supply/charger cable
into a standard AC outlet.
3. Plug the other end of the power supply/
charger into the DC power jack on the back of
705iR. The LED above the DC will glow RED. A
solid GREEN LED indicates the 705iR is
fully charged.
• Many users opt to only use the AC power. If this is the case it’s not
necesary to charge the battery.
• When fully charged, the circuit switches to a trickle charge, which will
not overcharge or damage the batteries.
• A fully charged 705iR can operate under battery power for up to 6 hours.
Helpful Hint