LightSpeed Technologies 820iR User manual

User Manual
820iR
Classroom Audio System
ASSISTIVE LISTENING
LES 820iR Classroom Amplification System
ALD VOLUME
AUDIO INPUT VOLUME
WIRELESS MICROPHONE VOLUME
IR AP IR AP

TABLE OF CONTENTS
SECTION 1: 4 System Components and Unpacking
Overview 6 Optional Components
7 820iR Front Panel Controls
8 820iR Rear Panel Controls
9 REDMIKE Controls and Connections
10 Cradle Charger Controls and Connections
SECTION 2: 11 Step 1. Location of the Amplifier
Set-up & Use 12 Step 2. IR Sensor Installation
14 Step 3a. Connect the Power Supply
14 Step 3b. IR Sensor Connection
14 Step 3c. Speaker Connection(s)
15 Step 3d. Audio Input Connections
16 Step 4. Audio Integration
17 Step 5. Charging the REDMIKE
18 Step 6. Operating the REDMIKE
19 Audio Equalization of the 820iR
20 Output to Personal Assistive Listening Device
21 Using the REDMIKE to Amplify External
Audio Equipment
SECTION 3: 22 REDMIKE VC: Controls and Connections
Optional Accessories 23 Charging
23 Initial Set-Up
24 LT-71: Controls and Connections
25 Charging
26 Initial Set-Up
27 REDMIKE Share: Controls and Connections
28 Charging
29 Initial Set-Up
30 iR Media Connector: Initial Setup
31 Audio Integration
31 Other Optional Accessories
SECTION 4: 32 Troubleshooting Guide
Troubleshooting 33 Tips to Maintain Optimal Audio Performance
SECTION 5: 34 Warranty Statement
Warranty &
Specifications
35 Safety Instructions, Warnings & Certifications
37 System Specifications

4
1. Overview 2. Setup & Use 3. Optional
Accessories 4. Troubleshooting 5. Warranty, Safety
& Specifications
Amplifier Power
Supply
SECTION 1:
OVERVIEW
SYSTEM COMPONENTS AND UNPACKING
The standard configuration of the 820iR will contain:
SR70 Infrared Sensor
and Cable
Charging Cradle and
Power Supply
REDMIKE®
Classroom
Microphone
820iR
POWER
A VOLUME B VOLUME TV/VCR CD/DVD ASSISTIVE LISTENING
IR IR AF AF
WIRELESS MICROPHONE VOLUME AUDIO INPUT VOLUME ALD VOLUME
LES 820iR Classroom Amplification System

5
1. Overview 2. Setup & Use 3. Optional
Accessories 4. Troubleshooting 5. Warranty, Safety
& Specifications
Speakers and Speaker Wire
Systems can be configured with a variety of different speaker types,
including the following:
Standard Components
RX-820 Infrared receiver/amplifier/mixer
PS-24V-2.5 24V/2.5A power supply for 820iR
IR-SR70F Infrared sensor with mounting bracket
CA-PC50F 50’ plenum-rated sensor cable
RMT REDMIKE classroom microphone with battery
BA-NH2A27 AA NiMH rechargeable sensing battery for REDMIKE
AC-RMLC2 REDMIKE lavaliere cord
BC-RMCC REDMIKE cradle charger
PS-5V-1.0 5V/1.0A power supply for cradle charger
SPEAKERS Contact Lightspeed at 800.732.8999 for speaker info
NXQ (x 1)
WMQ (x 4)
DRQ (x 4)
MCQ (x 1)
CNXQ (x 1)

6
1. Overview 2. Setup & Use 3. Optional
Accessories 4. Troubleshooting 5. Warranty, Safety
& Specifications
OPTIONAL COMPONENTS
Optional equipment which may be part of your 820iR system:
REDMIKE™ VC
Volume Control
Microphone
REDMIKE Share
Handheld Mic &
Charger Cable
LT-7 1
LT-71 LightMic
and Charger
Cable
Optional Components
RMV REDMIKE VC microphone with battery
RMS REDMIKE Share handheld microphone with battery pack
LT71 LightMic microphone with batteries
BA-NH2A27 AA NiMH rechargeable sensing battery for REDMIKE
BA-NH2APK NiMH rechargeable battery pack for REDMIKE Share
BA-NH1 AA NiMH rechargeable battery for LT71 (2 per microphone)

7
1. Overview 2. Setup & Use 3. Optional
Accessories 4. Troubleshooting 5. Warranty, Safety
& Specifications
POWER
A VOLUME B VOLUME
TV/VCR CD/DVD ASSISTIVE LISTENING
IR IR AF AF
WIRELESS MICROPHONE VOLUME
AUDIO INPUT VOLUME ALD VOLUME
LES 820iR Classroom Amplification System
POWER
A VOLUME B VOLUME
TV/VCR CD/DVD ASSISTIVE LISTENING
IR IR AF AF
WIRELESS MICROPHONE VOLUME
AUDIO INPUT VOLUME ALD VOLUME
LES 820iR Classroom Amplification System
FRONT PANEL CONTROLS
1. POWER SWITCH/POWER
INDICATOR: This switch is used
to turn the 820iR ON (switch up),
or OFF (switch down). When
the POWER switch is in the ON
position, the red POWER light will
glow.
2. IR INDICATORS (IR): These
lights will glow red when the
corresponding microphone is
turned on. This light confirms the
820iR is receiving the infrared
signal.
3. AF INDICATORS (AF): These
lights flash green when audio
(voice) from the microphone is
detected.
4. A VOLUME: Controls the volume
level of the teacher microphone
that is switched to Channel A.
Rotating the knob clockwise
increases output level.
5. B VOLUME: Controls the volume
level of the optional second
microphone that is switched to
Channel B. Rotating the knob
clockwise increases output level.
6. AUDIO INPUT VOLUME:
• TV/VCR: Controls the volume of
a TV/VCR connected to the
TV/VCR INPUT.
• CD/DVD: Controls the volume
of a CD/DVD player connected
to the CD/DVD INPUT.
7. ASSISTIVE LISTENING VOLUME:
Controls the volume level of an
assistive listening device.
1
45
6 7
2
2
3

8
1. Overview 2. Setup & Use 3. Optional
Accessories 4. Troubleshooting 5. Warranty, Safety
& Specifications
SPEAKER OUTPUTS
250 400 700 1K 1K4 2K5 4K
6K3
+10
0
-10
AUDIO INPUT
CHARGERS
DC
POWER
TV/VCR CD/DVD
L L
R R
24V
DC
SENSOR INPUT
SENSOR
SHORT
2.06/2.54
SPEAKER OUTPUTS
250 400 700 1K 1K4 2K5 4K
6K3
+10
0
-10
AUDIO INPUT
CHARGERS
DC
POWER
TV/VCR CD/DVD
L L
R R
24V
DC
SENSOR INPUT
SENSOR
SHORT
2.06/2.54
1. SPEAKER OUTPUTS (1–4): These
binding post connectors are
used to connect the 820iR to the
speakers. Depending on speaker,
all outputs may not be used.
2. DC POWER: Plug the 24 V power
supply into this jack.
3. CHARGERS: These jacks can
be used to charge the optional
LightMic or handheld mic as an
alternative to connecting them to
the REDMIKE cradle charger.
4. AUDIO INPUTS:
• TV/VCR: Accepts stereo signal
from TV/VCR via RCA cable.
• CD/DVD: Accepts stereo signal
from CD/DVD player via RCA
cable.
5. 8-BAND GRAPHIC EQUALIZER:
The sliding controls adjust
the levels of the various audio
frequencies. This allows the
installer to properly equalize the
system to produce optimum sound
quality.
6. SENSOR INPUT: The IR sensor
cable connects to the sensor input.
Connect additional sensors to
the 820iR to cover large or odd-
shaped classrooms.
7. SENSOR SHORT: This LED glows
when there is a short in one of the
sensor cables.
REAR PANEL CONTROLS
1
23
6
7
5
4

9
1. Overview 2. Setup & Use 3. Optional
Accessories 4. Troubleshooting 5. Warranty, Safety
& Specifications
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. YELLOW PROTECTIVE TAB:
Slide the battery compartment
door open to remove this
disposable protective tab before
use. NOTE: do not attempt to
remove the tab without first
opening the compartment door, as
it may tear, leaving fragments.
5. 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.
6. 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.
7. 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
5
6
7
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4

10
1. Overview 2. Setup & Use 3. Optional
Accessories 4. Troubleshooting 5. Warranty, Safety
& Specifications
1. CHARGE INDICATORS: The light
glows RED while the REDMIKE is
charging. When fully charged, the
light will glow GREEN. A blinking
RED light indicates that no battery
is sensed, (REDMIKE Yellow
Protective Tab may not have been
completely removed—see page
5, item 4.) A blinking Green LED
means a non- Lightspeed battery
has been installed (possibly an
alkaline battery).
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 REDMIKE
Share microphones here.
CRADLE CHARGER CONTROLS AND
CONNECTIONS
1
2
3