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LightSpeed Technologies 820iR User Manual

Classroom audio system
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820iR
Classroom Audio System
U s e r M a n u a l

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Summary of Contents for LightSpeed Technologies 820iR

  • Page 1 820iR Classroom Audio System U s e r M a n u a l...

  • Page 3: Table Of Contents

    Step 3d. Audio Input Connections Step 4. Audio Integration Step 5. Charging the REDMIKE Step 6. Operating the REDMIKE Audio Equalization of the 820iR Output to Personal Assistive Listening Device Using the REDMIKE to Amplify External Audio Equipment SECTION 3:...

  • Page 4: Overview

    SECTION 1: OVERVIEW SYSTEM COMPONENTS AND UNPACKING The standard configuration of the 820iR will contain: LES 820iR Classroom Amplification System A VOLUME B VOLUME TV/VCR CD/DVD ASSISTIVE LISTENING POWER WIRELESS MICROPHONE VOLUME AUDIO INPUT VOLUME ALD VOLUME 820iR Amplifier Power...
  • Page 5 NXQ (x 1) CNXQ (x 1) MCQ (x 1) 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 REDMIKE classroom microphone with battery BA-NH2A27 AA NiMH rechargeable sensing battery for REDMIKE...
  • Page 6 OPTIONAL COMPONENTS Optional equipment which may be part of your 820iR system: REDMIKE™ VC Volume Control Microphone REDMIKE Share Handheld Mic & Charger Cable LT-71 LT-71 LightMic and Charger Cable Optional Components REDMIKE VC microphone with battery REDMIKE Share handheld microphone with battery pack...

  • Page 7: Front Panel Controls

    1. POWER SWITCH/POWER 5. B VOLUME: Controls the volume INDICATOR: This switch is used level of the optional second to turn the 820iR ON (switch up), microphone that is switched to or OFF (switch down). When Channel B. Rotating the knob the POWER switch is in the ON clockwise increases output level.

  • Page 8: Rear Panel Controls

    1. SPEAKER OUTPUTS (1–4): These 5. 8-BAND GRAPHIC EQUALIZER: binding post connectors are The sliding controls adjust used to connect the 820iR to the the levels of the various audio speakers. Depending on speaker, frequencies. This allows the all outputs may not be used.
  • Page 9 REDMIKE CONTROLS AND CONNECTIONS 1. POWER BUTTON: Press this opening the compartment door, as button to turn the REDMIKE ON, it may tear, leaving fragments. press again to turn it OFF (mute). 5. AUDIO/MICROPHONE INPUT: 2. POWER/LOW BATTERY Use this input to plug in a laptop, INDICATOR: A BLUE light MP3 player or other audio indicates the REDMIKE is on and...
  • Page 10 CRADLE CHARGER CONTROLS AND CONNECTIONS 1. CHARGE INDICATORS: The light 2. DC POWER PORT: Connect the glows RED while the REDMIKE is DC power cord here. charging. When fully charged, the 3. OPTIONAL CHARGING PORT: light will glow GREEN. A blinking Plug the charging cord for the RED light indicates that no battery optional LT-71 or the REDMIKE...

  • Page 11: Set-Up & Use

    Media Cabinet Set-up Wall-mount Set-up The optional Lightspeed wall shelf (part #AC-800WB) is specifically designed to support the 820iR. Avoid Separated Set-ups Components should be housed together. Wires should be routed back directly to the amplifier.

  • Page 12: Ir Sensor Installation

    2. IR SENSOR INSTALLATION Sensor location is very important for optimum performance of the 820iR Classroom Audio System. • BEST: On the ceiling at or near the middle of the classroom. • GOOD: High and centered on the long wall.

  • Page 13: Suspended Ceiling Mount

    2. IR SENSOR INSTALLATION CONT’D Suspended Ceiling Mount Wall/Solid Ceiling Mount wall mounting strip c-clip 1. Lift the ceiling tile nearest the grid rail in your desired sensor location. Guide one side of the C-clip over one edge of the grid rail.
  • Page 14 DC Power Source Cable 3B. IR SENSOR CONNECTION 1. Ensure the power is still switched off. 2. Check the connection from the IR sensor to the 820iR. Ensure the sensor cable is securely attached. 820iR Receiver IR Sensor SENSOR INPUT...
  • Page 15 3C. SPEAKER CONNECTION(S) Next, connect the 820iR to the speakers. Then, be sure any auxiliary audio sources are connected to the corresponding labeled input on the 820iR. 1. Ensure the power switch is in the “OFF” position and all front panel volume controls are turned fully counter-clockwise.
  • Page 16 4. AUDIO INTEGRATION The next step in setting up your 820iR system is to connect it to the other multimedia devices in your classroom. You may have a computer, television, DVD/VCR player, a visual projection system or other devices. Below are instructions on how to integrate TV/VCR, CD/DVD or computer directly into the 820iR.

  • Page 17: Charging The Redmike

    REDMIKE incorporates alkaline protection into the microphone design. Always use a Lightspeed rechargeable sensing battery. Replacement AA NiMH batteries may only be purchased through Lightspeed Technologies (part # BA-NH2A27). Do not attempt to charge alkaline batteries. They can overheat and expand creating a significant hazard and damaging the microphone (this is not covered by warranty).

  • Page 18: Operating The Redmike

    6. OPERATING THE REDMIKE Once the REDMIKE is charged, follow these steps to set it up for use. 1. Turn the 820iR power switch to the ON position. The RED LED on the switch will glow. 2. Turn on the REDMIKE. The RED IR LED on the 820iR will light to indicate a signal is being received.
  • Page 19 AUDIO EQUALIZATION OF THE 820iR The 820iR uses a 4-band audio equalizer designed to optimize and fine-tune the microphone sound quality for the classroom. Below are some tips on proper system equalization: • The voice should be natural, very clear and without any audio feedback (ringing) •...
  • Page 20 NOTE: This is to set the maximum differ in connector size and shape. allowable signal from the 820iR. The Lightspeed LES-370 Personal 5. With the 820iR and ALD turned FM System requires a 3.5mm to on, speak into the REDMIKE and 3.5mm patch cable (part# CA- slowly adjust the ALD volume MMC3535, not included).
  • Page 21 To determine which REDMIKE is set to Channel B, you can look at the switch on the back of the mike or speak into one of the mics and watch which set of LED’s glow on the front panel of the 820iR (A Volume or B Volume correspond to Channels A or B).

  • Page 22: Optional Accessories

    SECTION 3: OPTIONAL ACCESSORIES OPTIONAL REDMIKE VC (Volume Control) Controls and Connections 1. POWER /MUTE BUTTON source to wirelessly transmit audio to be played through the 2. POWER/LOW BATTERY system. Alternatively, an external INDICATOR: A BLUE light microphone can be connected. indicates the REDMIKE VC is on 6.
  • Page 23 See page 20 and follow the same instructions for the REDMIKE. REDMIKE VC : Initial Set-up 1. Ensure the 820iR is ON. The blue REMEMBER: This equipment is designed to supplement and LED on the power button will glow.
  • Page 24 OPTIONAL LT-71: Controls and Connections LT-71 LT-71 1. ON/OFF/MUTE SWITCH 5. AUXILIARY (AUX): Plug a laptop, MP3 player or other audio source 2. CHANNEL SELECT SWITCH (CH into this jack to wirelessly transmit A/B): Use this to choose Channel the audio signal to be played A or B.
  • Page 25 LT-71: Charging 1. Ensure that the LT-71 is turned OFF. 2. Make sure the cradle charger is plugged into a wall outlet. Connect one end of the charging cable into the jack labeled CHARGER on the side of the LT-71 and plug the other end into the charging jack on the rear of the REDMIKE cradle charger.
  • Page 26 LT-71: Initial Set-up Once the LT-71 is charged, follow these steps to set it up for use. 1. Turn the 820iR power switch to the ON position. The RED LED on the switch will glow. 2. Turn on the LT-71 and set the operating channel to “B”.
  • Page 27 REDMIKE Share: Controls and Connections 1. POWER SWITCH 2. POWER/CHARGE INDICATOR: this light glows blue when turned on and turns off to indicate low battery level. When charging, the light glows red. 3. AUDIO INPUT: plug a laptop, MP3 player or other audio device into this jack to wirelessly transmit the audio signal to be played through the system.
  • Page 28 NOTE: If the system was purchased without a REDMIKE or REDMIKE VC, the REDMIKE Share will utilize the charger jacks on the back of the 820iR. AUDIO INPUT SENSOR INPUT TV/VCR CD/DVD 2.06/2.54...
  • Page 29 REDMIKE Share: Initial Set-up 1. Ensure the 820iR is ON. The RED LED on the power switch will glow. 2. Turn on the REDMIKE Share by sliding the switch to the top position. 3. Grip the barrel in the center section.
  • Page 30 (such as many DVD players) adjust the volume at the iRMC. C. If the first two options do not give optimum volume level, the last place to adjust the volume is the CH. B Volume on the 820iR.
  • Page 31 OPTIONAL IR MEDIA CONNECTOR AUDIO INTEGRATION The iRMC is designed to integrate with the 820iR and multiple audio sources, allowing other instructional technologies to be clearly heard throughout the classroom. Video In Projector Projector IR Sensor IR Transmission Teacher’s Microphone...

  • Page 32: Troubleshooting

    SOLUTION: Follow these steps to produce sound from speakers. • Inspect the battery contacts. Clean and adjust if necessary. • Turn the 820iR on. Confirm that the POWER light located on the front PROBLEM: Hearing Static panel switch is on.
  • Page 33 TIPS TO OBTAIN OPTIMUM AUDIO PERFORMANCE • Speak in a natural voice. A normal conversational speech levelwill provide an adequate signal. It is not necessary to increase the intensity of your voice—the audio system provides adequate amplification (approximately 5 – 10 dB) above ambient room noises.

  • Page 34: Warranty

    SECTION 5: WARRANTY, SAFETY & SPECIFICATIONS FIVE-YEAR LIMITED WARRANTY Lightspeed Infrared Audio Systems 1. Warranty on infrared microphones and optional accessories are is FIVE (5) YEARS. warranted against malfunction due to 2. Warranty on Lightspeed defect in materials and workmanship rechargeable batteries, all external for a period of five (5) years from date cables and wires provided by...

  • Page 35: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS Read these instructions. 11. Only use attachments/ accessories specified by the Keep these instructions. manufacturer. Heed all warnings. 12. Use only with a cart, Follow all instructions. stand, tripod, bracket or table specified by the Do not use the apparatus manufacturer, or sold with near water.
  • Page 36 Technology Equipment EN 55024: EMC Immunity Standard EN 61000-3-2: Harmonics EN 61000-3-3: Voltage Fluctuation Lightspeed Technologies launched a formal product recycle program in Europe that complies with the European Union Directive 2002/96/EC on Waste Electrical and Electronic Equipment (“WEEE Directive”). Please visit our website at www.Lightspeed-tek.com for more...
  • Page 37 SYSTEM SPECIFICATIONS OVERALL SPECIFICATIONS Power Output 12 W per channel (24 W total) Amplifier Frequency Response 40 Hz to 20 kHz ±3 dB Carrier Frequencies (IR) 2.06/2.54; 3.2/3.7 MHz Signal-to-Noise Ratio > 73 dB Dynamic Range > 73 dB Maximum Deviation ±50 dB RECEIVER SPECIFICATIONS Receiver Type...
  • Page 40 LIGHTSPEE D TECHN OL OGIE S 1 1509 SW HERMAN RO AD / T U AL AT I N , OR 970 62 TOLL FRE E: 800.732. 89 99 / P H O NE: 5 03. 6 84. 55 38 / FAX: 5 03 .6 8 4.3 19 7 LIGHTS PEED-TEK .C OM MN0043US01-7...

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