Listen Technologies LP-3CV-072, LR-200-072, LA-161, LA-123 90 LT-803-072 Block Diagram, Power

Page 27

LT-803-072 Block Diagram

POWER

On Off

115/230VAC 50/60 Hz

Functions controlled by

the CPU Module

Universal Power

Supply (provided)

ANTENNA

BNC

12VDC, 1.3A

Power Supply

 

 

 

 

 

 

 

 

 

 

CPU Module

Down

 

MONITOR

 

 

 

 

 

Volume

 

 

 

Listen LCD

 

 

 

 

 

Display Backlit

 

 

 

 

 

 

Compression Ratio

 

 

 

 

(internal adjustment)

 

 

 

MIX Level

 

 

 

 

 

VU Meter

 

 

 

Transmitter

Pre-emphasis

 

Processing

 

RF Board

 

 

 

 

 

 

 

 

 

MIX LEVEL

Green LED

 

Low

Mid

High

 

On

Off

 

 

 

 

 

LT-LT-803-800072

Input 1 VU Meter

12VDC

RF POWER

PROCESS

CONTOUR

Input 2 VU Meter

Input Level

Front Panel

Mic Line

Mic

Phantom Pwr

Female XLR 1/4’

Combo Connector

2/Tip 3/Ring 1/Sleeve

Input Level

Select Mic-Phantom Pwr, Mic, Line

Input Level

Select Mic-Phantom Pwr, Mic, Line

+10dBu

Phono

OFF ON

-10dBu

Phono

400Hz

Test Tone Button

Front Panel

Red LED

INPUT 1

INPUT 2

MIX OUTPUT

TEST TONE

21

Image 27
Contents Page Page Page Page Value Package Table of Contents Page Page Page Value Package Contents Value Package Design Guide Table of ContentsPage Frequency Modulation FM Technology Overview Input Source System OverviewKey Concepts in Value Package Setup Input 1 Connecting the audio sourceInput 2 Connect the audio source Mix Level Using Multiple inputsFind transmission channels Monitor JackTest Tone Rear mounted antenna Antenna placement rearAlternative Options for Value Package Setup Remote antennaReceiver Options Rack Mounting the Transmitter Design Guide Design Guide Page Page Page LT-803-072 User’s Manual Table of Contents LT-803-072 Package ContentsListen Configurations Page Architectural Specification LT-803-072 SpecificationsPower LT-803-072 Block DiagramLT-803-072 Quick Reference Input Level IndicatorsMount LT-803-072s in Rack if desired LT-803-072 Setup InstructionsConnect Power Unpack the ProductConnect Audio Inputs Set RF powerLock on Channel Power Unit OnLT-803-072 Operating Instructions Select a ChannelTest Tone if necessary Adjust Audio Input LevelAdjust Mix Level Adjusting the Contour knobProcess Mode Antennas Accessories for LT-803-072Design Guide Page Page Page LR-200-072 Package Contents LR-200-072 User’s Manual Table of ContentsPage Specifications LR-200-072 LR-200-072 SpecificationsLR-200-072 Block Diagram LR-200-072 Quick Reference Remove the product LR-200-072 Setup InstructionsOpen the front access door Select Battery TypeChannel Select Place Batteries in UnitConnect an Earphone or Headset Turn the Unit On Adjust the volume controlAccessories Accessories for LR-200-072LR-200-072 LR-LT200-800-072 Page Page Page Supplementary Information Table of Contents Page Battery Charging Information Charging with a drop-in chargerCharging with the LA-202 Frequency Chart Troubleshooting TroubleshootingAm using another manfactures receiver with the LT-803-072 Frequently Asked Questions Frequently Asked QuestionsCompliance Notice Compliance Notice and FCC StatementWarranty Warranty and Contact InformationSupplementary SupplementaryLT-800 Listen Technologies Corporation All Rights Reserved

LA-123 90, LA-161, LT-803-072, LR-200-072, LP-3CV-072 specifications

Listen Technologies offers a range of innovative assistive listening solutions tailored to improve the audio experience for individuals in various settings. Among its popular devices are the LR-200-072, LP-3CV-072, LA-161, LA-123 90, and LT-803-072. Each of these products features advanced technology designed to enhance auditory comprehension, ensuring that all users can fully participate in events or activities.

The LR-200-072 is a lightweight, portable, and easy-to-use portable receiver. Its digital tuning provides clear sound reproduction, while the wide frequency response ensures that users hear every detail. The LR-200-072 supports multiple channels, allowing users to easily switch between audio sources in environments such as auditoriums and theaters. With its long-lasting battery, this receiver is ideal for extended use in any setting.

The LP-3CV-072, on the other hand, is a powerful transmitter that excels in broadcasting audio to multiple receivers, such as the LR-200-072. Featuring adjustable transmission power, the LP-3CV-072 ensures a strong and reliable signal, even in challenging environments. Its compact design and robust construction make it suitable for various applications, including conferences, language interpretation, and public announcements.

The LA-161 is a high-performance antenna that enhances the range and signal quality of Listen Technologies’ systems. This antenna is specifically designed to work seamlessly with the LR-200-072 and LP-3CV-072, optimizing the performance of the entire system. Its durable construction ensures reliability under various environmental conditions, while its design facilitates effortless installation.

For individuals who require additional assistance, the LA-123 90 is a versatile loop hearing device that helps users with hearing aids or cochlear implants. The LA-123 90 generates an electromagnetic field, allowing compatible devices to capture sound via the telecoil. This device ensures unobtrusive and clear audio transmission, significantly enhancing communication and understanding.

Lastly, the LT-803-072 is a robust and effective transmitter that offers multiple channels and a wide frequency range. This device is designed for compatibility with various Listen Technologies receivers, ensuring users can enjoy uninterrupted audio experiences. The LT-803-072 is particularly useful in settings like educational institutions, conferences, and places of worship, where clear audio is essential for engagement.

Together, these devices from Listen Technologies demonstrate a commitment to improving accessibility and enhancing the audio experience for individuals in various environments. Their advanced features, reliable technologies, and user-friendly designs set them apart as leaders in assistive listening solutions.