LES 780iR INFRARED CLASSROOM AMPLIFICATION SYSTEM L I G H T S P E E D TE C H N O L O G I E S , 11509 SW TU A L AT I N , HERMAN OR INC. RD 97062 800.732.8999 WWW.LIGHTSPEED-TEK.
User Notes Table of Contents LES 780iR Infrared Classroom Amplification System: Overview Record your system serial numbers and purchase information. This is helpful when ordering additional components, accessories, and/or warranty service. standard components serial number LES 780iR LES 780iR System Components System Installation: 1. Unpacking 4. Receiver/Amplifier 3 3. Speaker(s) b. Wall or Solid Ceiling Mount 6. LightMic Microphone/Transmitter 7.
LES 780iR Infrared Classroom Amplification System: Individual Components and Optional Accessories Overview The LES 780iR Infrared Classroom Amplification System includes the LES 780iR receiver/amplifier, LT-70 Light Mic™ microphone/transmitter, SR-70 infrared sensor and speaker package. This system allows teachers to speak at a normal conversational level while being heard clearly by every student in the classroom.
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. • 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. • Transmitters are charged via a jumper cable from the back of the LES 780iR. Make sure plugs are secured and in the proper jacks.
System Installation 1. Unpacking Your System • Ensure that you have received all of the components to your system. • Locate the speaker installation instruction sheet that is packed with your speakers. • Keep ALL packaging materials. If the system must be returned, it will be quick, convenient and undamaged. 2. Location Before installing the system, take time to consider the placement of your components. • Infrared (IR) Sensor: Consider areas of dark color in the room as they reflect less infrared light.
Tips on Using Classroom Amplification Five-Year Limited Warranty to Original Purchaser These helpful suggestions are provided to maximize the successful use of your new LES 780iR Infrared Classroom Amplification System. The LightSPEED LES 780iR Infrared Classroom Amplification System is warranteed against malfunction due to defects in materials and workmanship for a period of five years beginning at the date of the purchase. Batteries and the optional TK250 Headset Microphone are guaranteed for one year.
6. LightMic Microphone/ [ note: ] For testing purposes, basic instructions for wearing and operating the LightMic are provided below. For more detailed instructions, refer to page 11. The system can generate feedback (a squealing or howling sound) if there is too much volume or the equalization (EQ) levels are incorrectly set. Adjust the three EQ level knobs if necessary to eliminate feedback and to obtain a natural sound. Transmitter • Clip the LightMic to the lavaliere.
Front Panel Controls HM-70 Operating Instructions Charging Rechargeable batteries are pre-installed. a. Turn off the HM-70 by sliding the power switch all the way down. b. Connect one end of the charging cable to one of the MIC CHARGE jacks on the back panel of the LES 780iR. Connect the other end of the charging cable to the charging jack on the side of the HM-70. The power indicator LED will glow green when the charging cable is connected and charging correctly. c.
Rear Panel Controls 1 2 1. SPEAKERS (1-6) Volume Controls: These knobs control the output volume of each corresponding speaker. The volume level is preset in the middle position at the factory. LightSPEED recommends leaving the volumes at this level for uniform sound throughout the classroom. 2. SPEAKER OUTPUT (1-6): These 1/4” jacks are used to connect speaker cable from the loudspeakers to the LES 780iR. 3 7 6 3.
System Operation: Operating the LightMic a. The LightMic has a built-in microphone. Once the transmitter is switched on, the microphone is activated. b. The LightMic may be used as a handheld mic or a hands-free pendent style microphone by clipping the LightMic on the supplied lavaliere cord. Place the lavaliere cord around your neck, and adjust the length so the top of the LightMic rests on the collar bone. c. On the side of the LightMic is the Channel select switch. Slide the switch to the “A” position.
LT-70 LightMic™ Microphone/Transmitter: Charging the LightMic Controls and Connections Microphone External Microphone Connector (MIC) Clip 4 5 Charging Connector (CHARGER) The rechargeable NiMH batteries must be fully charged before regular classroom operations. 3 Power/ Charge LED Indicator 1. ON/OFF Switch: This switch, located on the side of the LightMic, turns the unit on or off. The red triangle-shaped LED on the front of the LightMic will light when power is on. 2.
LT-70 LightMic™ Microphone/Transmitter: Charging the LightMic Controls and Connections Microphone External Microphone Connector (MIC) Clip 4 5 Charging Connector (CHARGER) The rechargeable NiMH batteries must be fully charged before regular classroom operations. 3 Power/ Charge LED Indicator 1. ON/OFF Switch: This switch, located on the side of the LightMic, turns the unit on or off. The red triangle-shaped LED on the front of the LightMic will light when power is on. 2.
System Operation: Operating the LightMic a. The LightMic has a built-in microphone. Once the transmitter is switched on, the microphone is activated. b. The LightMic may be used as a handheld mic or a hands-free pendent style microphone by clipping the LightMic on the supplied lavaliere cord. Place the lavaliere cord around your neck, and adjust the length so the top of the LightMic rests on the collar bone. c. On the side of the LightMic is the Channel select switch. Slide the switch to the “A” position.
Rear Panel Controls 1 2 1. SPEAKERS (1-6) Volume Controls: These knobs control the output volume of each corresponding speaker. The volume level is preset in the middle position at the factory. LightSPEED recommends leaving the volumes at this level for uniform sound throughout the classroom. 2. SPEAKER OUTPUT (1-6): These 1/4” jacks are used to connect speaker cable from the loudspeakers to the LES 780iR. 3 7 6 3.
Front Panel Controls HM-70 Operating Instructions Charging Rechargeable batteries are pre-installed. a. Turn off the HM-70 by sliding the power switch all the way down. b. Connect one end of the charging cable to one of the MIC CHARGE jacks on the back panel of the LES 780iR. Connect the other end of the charging cable to the charging jack on the side of the HM-70. The power indicator LED will glow green when the charging cable is connected and charging correctly. c.
6. LightMic Microphone/ [ note: ] For testing purposes, basic instructions for wearing and operating the LightMic are provided below. For more detailed instructions, refer to page 11. The system can generate feedback (a squealing or howling sound) if there is too much volume or the equalization (EQ) levels are incorrectly set. Adjust the three EQ level knobs if necessary to eliminate feedback and to obtain a natural sound. Transmitter • Clip the LightMic to the lavaliere.
Tips on Using Classroom Amplification Five-Year Limited Warranty to Original Purchaser These helpful suggestions are provided to maximize the successful use of your new LES 780iR Infrared Classroom Amplification System. The LightSPEED LES 780iR Infrared Classroom Amplification System is warranteed against malfunction due to defects in materials and workmanship for a period of five years beginning at the date of the purchase. Batteries and the optional TK250 Headset Microphone are guaranteed for one year.
System Installation 1. Unpacking Your System • Ensure that you have received all of the components to your system. • Locate the speaker installation instruction sheet that is packed with your speakers. • Keep ALL packaging materials. If the system must be returned, it will be quick, convenient and undamaged. 2. Location Before installing the system, take time to consider the placement of your components. • Infrared (IR) Sensor: Consider areas of dark color in the room as they reflect less infrared light.
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. • 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. • Transmitters are charged via a jumper cable from the back of the LES 780iR. Make sure plugs are secured and in the proper jacks.
LES 780iR Infrared Classroom Amplification System: Individual Components and Optional Accessories Overview The LES 780iR Infrared Classroom Amplification System includes the LES 780iR receiver/amplifier, LT-70 Light Mic™ microphone/transmitter, SR-70 infrared sensor and speaker package. This system allows teachers to speak at a normal conversational level while being heard clearly by every student in the classroom.
User Notes Table of Contents LES 780iR Infrared Classroom Amplification System: Overview Record your system serial numbers and purchase information. This is helpful when ordering additional components, accessories, and/or warranty service. standard components serial number LES 780iR LES 780iR System Components System Installation: 1. Unpacking 4. Receiver/Amplifier 3 3. Speaker(s) b. Wall or Solid Ceiling Mount 6. LightMic Microphone/Transmitter 7.
LES 780iR INFRARED CLASSROOM AMPLIFICATION SYSTEM L I G H T S P E E D TE C H N O L O G I E S , 11509 SW TU A L AT I N , HERMAN OR INC. RD 97062 800.732.8999 WWW.LIGHTSPEED-TEK.