8 5 0 i R

U s e r

M a n u a l

TROUBLESHOOTING GUIDE

 

Note: Most problems are directly related to low battery power. Please run

through the “Battery Check” items first. For remaining troubleshooting,

use known good, fully-charged batteries.

 

 

Battery Check

No Sound From Speaker

Confirm batteries are charged

Turn the 850iR on. Confirm that

 

each night.

 

the POWER light located on the

Make sure the LT-71 is turned off

 

front panel switch is on.

 

 

 

while charging so that it will attain

Confirm signal is being received

 

a full charge. Full charge will last

 

at the amplifier. The IR signal

 

eight hours.

 

light will be lit (red) indicating a

Make sure the charge cord is

 

signal is being received.

 

 

 

connected to the cradle charger.

Confirm microphone is function-

Inspect the battery contacts. Clean

 

ing. Next to the IR signal light is

 

the AF signal light. This light will

 

and adjust if necessary.

 

 

 

flicker (green) as audio is picked

Hearing Static

 

 

up by the microphone indicating

Ensure sensor is in optimum

 

activity.

 

 

 

location (refer to sensor placement

Ensure speaker switch on the

 

in manual). A single sensor will

 

amplifier is in the “ON” position

 

cover a 1600 sq. ft. enclosed

 

for each speaker that is connect-

 

classroom.

 

ed to the amplifier. Check con-

Ensure that no other LT71/HM70 is

 

nections on both the amplifier

 

and speaker.

 

operating on the same channel.

 

 

 

 

If an external microphone is in use,

Confirm that the speaker wires

 

are connected correctly to the

 

try another LightMic that is known

 

 

 

back of the 850iR (refer to

 

to be working (if available) to isolate

 

 

 

speaker install guide) and make

 

the problem. If static persists with

 

 

 

sure that the speaker switch for

 

“known good” microphone, the

 

 

 

that output jack is in the ON

 

LT-71 input jack has damage and

 

 

 

position.

 

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 ampli- fier. If the volume is too high, feed- back WILL occur—adjust accordingly.

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, 6:30 a.m. – 5 p.m. PST.

19 850iR User Manual

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LightSpeed Technologies 850iR user manual Troubleshooting Guide, Battery Check No Sound From Speaker

850iR specifications

LightSpeed Technologies has introduced the 850iR, an innovative solution designed to enhance audio quality and communication in various environments such as classrooms, auditoriums, and corporate settings. This advanced audio system is known for its robust features and cutting-edge technologies, which cater to the increasing demand for effective communication and collaboration.

One of the standout features of the 850iR is its powerful amplification capabilities. With a high-efficiency digital amplifier, the system delivers clear and dynamic sound across a wide range of frequencies. This ensures that every word spoken is heard distinctly, minimizing the chances of miscommunication and enhancing the listening experience for all participants. The system is particularly beneficial in larger spaces where sound dispersion can be an issue.

The 850iR incorporates long-range infrared technology, allowing for reliable audio transmission without interference from other devices. This infrared system provides clarity and privacy, making it perfect for sensitive discussions or instructional settings. Users can experience high-quality sound without the distractions commonly associated with wireless audio technologies.

Another advanced feature of the 850iR is its user-friendly interface. The device is designed for easy operation, enabling users to control volume levels, switch between input sources, and adjust settings seamlessly. This intuitive design is crucial for educators and presenters who need to focus on delivering content rather than troubleshooting equipment.

Additionally, the 850iR supports multiple input options, including microphones, computers, and other audio sources. This versatility allows for diverse applications, whether it's delivering a lecture, conducting a meeting, or hosting a conference. The inclusion of dynamic feedback suppression further enhances audio quality by reducing unwanted echoes and background noise.

LightSpeed Technologies also emphasizes the importance of durability and reliability in the design of the 850iR. Constructed with high-quality materials, the system is built to withstand the rigors of daily use in busy environments. Its compact design allows for easy installation and portability, making it a practical choice for organizations that require flexibility.

In summary, the LightSpeed Technologies 850iR stands out as a sophisticated audio solution that combines advanced technologies, strong performance, and ease of use. By addressing the essential needs of modern communication, the 850iR significantly contributes to engaging and effective interactions in various settings. Its focus on quality audio and user experience ensures it remains a valuable tool for educators, presenters, and professionals alike.