LightSpeed Technologies 780iR user manual Troubleshooting Guide

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Troubleshooting Guide

Please go through this checklist before calling LightSPEED Service Department.

Battery Check:

•Confirm batteries are charged each night. With proper charging, batteries will last about one school year.

•Transmitters are charged via a jumper cable from the back of the LES 780iR. Make sure plugs are secured and in the proper jacks.

•Confirm the green charging light located on the front of the LightMic is on while charging.

•Ensure the LightMic is turned off while charging.

Hearing Static or Buzzing:

•If using two LightMics, check that they are not set to the same channel. If so, select a different channel for one of the LightMics.

•Keep the LES 780iR at least 6 feet away from computers.

Low Volume:

•Check volume level on the LES 780iR and adjust as necessary.

•Check volume level on each of the speakers (on back panel) and adjust as necessary.

Sound Fades In and Out

(Drop Out):

•Test LightMic with fully charged batteries. LED light on front of mic will glow bright red.

No Sound From Speaker:

•Confirm the LightMic and the LES 780iR are turned on and have matching channels. Check both A VOLUME and B VOLUME to ensure they are set correctly.

•Confirm amplifier power supply is the correct type—if in doubt, call LightSPEED. In addition, confirm that the power supply is connected securely in the wall outlet and into the DC POWER connector

on the back of the 780iR.

•Turn the 780iR on. Confirm that the POWER light located on the front panel switch is on.

•Turn the LightMic on and confirm that the corresponding red IR light, located on the front panel of the LES 780iR, lights. When speaking into the LightMic, the green AF light will flash/flutter with your voice volume.

•Confirm that the batteries in the transmitter are fully charged. When they are, the red indicator will glow steadily.

•Confirm that the speaker wires are in the correct jacks on the back of the LES 780iR and confirm that the speaker switch for that speaker output is in the ON position. Also, confirm that the volume level for each connected speaker is set in the middle position (12 o’clock).

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Contents E R ’ S M a N U a L Front Panel Controls Rear Panel Controls System Operation LES 780iR Infrared Classroom Amplification System Page Follow instructions and mount speakerss System InstallationSuspended Ceiling Mount Clip the LightMic to the lavaliere Consult the troubleshooting guide for further assistancePage Page Check that System OperationLT-70 LightMic Microphone/Transmitter This is not covered by the warranty Ensure the LES 780iR is switched on Two-color LED indicator is located Channel Select Switch This switchOr Channel B. This switch is set to Power/Charge LED Indicator ThisHM-70 Operating Instructions Rechargeable batteries are pre-installedInput from External Audio Equipment For properly Tips on Using Classroom AmplificationFive-Year Limited Warranty to Original Purchaser All your repair/replacement needsInputs Amplifier SpecificationsOverall System Specifications Receiver SpecificationsKeep the LES 780iR at least 6 feet away from computers Troubleshooting GuideOptional Noise-canceling Headset Microphone to Individual Components and Optional AccessoriesRechargeable AA Battery Nickel Metal Hydride Power Supply/Battery Charger for 780iRWall-Mounting Shelf

780iR specifications

LightSpeed Technologies has engineered the 780iR, a standout product that combines cutting-edge innovation with functionality tailored for modern audio and communication needs. Designed with precision, the 780iR is ideal for educational spaces, corporate environments, and public venues where clear and effective communication is paramount.

One of the most notable features of the 780iR is its advanced infrared transmission technology. This technology ensures that audio signals are transmitted with minimal interference, providing crystal-clear sound quality. The infrared system is particularly beneficial in environments prone to electronic interference, as it operates in a spectrum that avoids typical RF congestion. This makes the 780iR an excellent choice for schools and organizations striving for reliable audio performance.

The 780iR also boasts exceptional adaptability with multiple channel options, allowing users to select the best frequency for their specific setting. This is especially useful in larger venues where multiple audio systems might operate simultaneously. Users can effortlessly switch channels to maintain optimal performance, avoiding potential overlaps and disruptions.

Another strong suit of the 780iR is its user-friendly interface. With straightforward controls, educators and presenters can easily adjust volume levels, select channels, and manage audio settings without needing extensive technical knowledge. This accessibility ensures a seamless experience, allowing users to focus on delivering their message rather than grappling with complicated technology.

In terms of design, the 780iR is both sleek and durable. Constructed with resilient materials, it is built to withstand the rigors of frequent use in various environments. Its compact design allows for easy placement in different locations, be it mounted on walls or positioned on desks.

Additionally, the 780iR is compatible with various audio sources, including microphones and other audio devices, enhancing its versatility. This compatibility enables seamless integration into existing audio-visual setups, making it a valuable addition to any technology ecosystem.

In summary, LightSpeed Technologies’ 780iR represents a fine blend of advanced technology and practical application, making it an excellent investment for those seeking superior audio performance in diverse settings. With its infrared transmission, user-friendly controls, adaptable channels, robust construction, and compatibility with multiple devices, the 780iR stands out as a leader in modern communication technology. Whether in classrooms, conference rooms, or public spaces, the 780iR delivers unparalleled clarity and reliability, ensuring that every voice is heard.
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