Table of Contents
LES 780iR Infrared Classroom Amplification System:
Overview
LES 780iR System Components
System Installation:
1. Unpacking
2. Location
3. Speaker(s)
4. Receiver/Amplifier
5. IR Sensor Placement
a. Suspended Ceiling Mount
b. Wall or Solid Ceiling Mount
6. LightMic Microphone/Transmitter
7. Testing
Front Panel Controls
Rear Panel Controls
System Operation:
Powering the LES 780iR
LT-70 LightMic Microphone/Transmitter:
Controls and Connections
Charging the LightMic
Operating the LightMic
Adjusting Volume
Operating two microphone/transmitters simultaneously
Optional HM-70 Handheld Microphone/Transmitter:
HM-70 Overview
HM-70 Controls
HM-70 Operating Instructions:
Charging
Operation
Holding and Positioning
Input from External Audio Equipment
Output to Personal FM Transmitter
Speaker Control
Turning Speakers On and Off
Controlling the Volume of the Individual Speakers
Tips on Using Classroom Amplification
Five-Year Limited Warranty to Original Purchaser
Overall System Specifications
Troubleshooting Guide
Individual Components and Optional Accessories
User Notes
1
2
3
3
3
3
4
4
4
5
5
6
7
8
9
10
11
11
11
12
12
13
13
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14
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User Notes
Record your system serial numbers and purchase information. This is helpful when
ordering additional components, accessories, and/or warranty service.
serial number
optional
component
serial number
LT-70 LightMic
standard
components
SR-70 IR Sensor
Power Supply
LES 780iR
RCA Cables
Speakers
Wall-Mounting Shelf
n/a
HM-70 Handheld
Microphone
TK-250 Headset
Microphone
