LightSpeed Technologies 850iR Stereo Amplifier User Manual
Contents
1. 00 00 DC POWER DC POWER CHARGERS E 800iX ADJ z eho or Ze mA lbaGinG INPUT 7 Connect the black AC power cable from the power supply to a wall outlet FINAL CHECK 1 Ensure all cables are appropriately routed out of walking paths and work areas to prevent safety hazards to individuals in the room 2 The amplifier packing material should be kept for warranty shipping purposes Dispose of remaining system packing material in the appropriate refuse containers Leave microphones charging so they are ready for use Microphones will need to be charged on a daily basis 850iR User Manual 10 1 Turn the 850iR switch to the ON LES 850iR Classroom Amplification System es POWER A VOLUME position The red LED on the switch will glow gt gt ty O O O O e WIRELESS MICROPHON 2 Slip the LT 71 LightMic with lanyard around the neck and position the top of the microphone just below the collarbone Note Positioning of the LightMic is critical lt lt for proper volume adjustment 3 Turn on the LightMic and set the operating TND O A channel to A This microphone will be Y EG By CORR designated as the Teacher Mic gt gt n While speaking in a normal voice gt gt Des Classroom Amplification System increase the A VOLUME level until ne NE E ee e O O your voice is barely audible Remember This equipment is designed to supplement and distribute the en2. SR 70F Infrared Sensor free from obstructions that may make and cable routing wire difficult Example under a whiteboard or bulletin board e LT 71 LightMic Transmitter e Charging Cradle and cable s e Speaker s and speaker wire IR Sensor Placement Sensor location is very important for optimum performance of the 850iR Classroom Amplification System e BEST On the ceiling at or near the middle of the classroom e GOOD High and centered on the long wall e AVOID Locations in corners on walls at heights lower than 7 feet or in places where the line of sight is or could be obstructed GY Heal Cine ES Fine tuning the Graphic Equalizer y 1 Verify that the EQ is set to match the recommended setting for the specific speakers installed in the classroom settings included with the speaker install guide Walk around room near speakers and listen for squealing or feedback Lower the 2K5 and or 4K sliders if a high pitched squealing is present Lower the 400 or 700 sliders if a low pitched ring is present Reduce volume if feedback is still present 3 850iR Users Manual IR SENSOR INSTALLATION Suspended Ceiling Mount Wall Solid Ceiling Mount O 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 Providing firm support to the back of the grid rail with one hand to prevent bending firmly and
3. System requires a 3 5 mm to 3 5 mm patch cable part CA MMC3535 not included Q AUDIO INPUTS OO TVNCR RL CD DVD En 9 PAGING INPUT VOL COMPUTER Connect a patch cable from the ALD s microphone jack or AUX input to the 3 5 mm audio jack labeled ALD OUT on the back of the 850IR LightSPEED Adjust the volume control on the ALD s receiver to maximum output NOTE This is to set the maximum allowable signal from the 850IR With the 850iR and ALD turned on speak into the LightMic and slowly adjust the corresponding ADJ volume control until the appropriate audio level is attained in the ALD s receiver headphones 15 850iR User Manual OPERATING THE OPTIONAL HM 70 HANDHELD MIC LightSPEED MUTE Center Position The Channel A B switch is located inside the battery compartment The switch is set to Channel B at the factory 1 Slide the power switch on the side of the HM 70 all the way up The power indicator LED will glow red and stay on 2 The center position of the power switch is MUTE When in this mode the HM 70 is transmitting a signal but no audio can be heard through the system This is useful if you wish to temporarily turn audio off during a private conversation 3 Grip the barrel of the HM 70 in the center section just below the power switch Avoid gripping the HM 70 around the bottom covering the infrared emitters circling the base Thi
4. al conversational speech level will provide an adequate signal It is not necessary to increase the intensity of your voice the amplification system provides adequate amplification approximately 5 10 dB above ambient room noises Avoid wearing jewelry that may rub or bump against the microphone Turn the LightMic off during private conversations with a student parent or other classroom visitor You can also cover the LED lens on top of the LightMic to block the signal Recharge batteries each night When recharged nightly operating time actual usage for the transmitters will last through a typical school day Avevesr Limited WATERY LightSPEED Classroom Amplification Systems are guaranteed against malfunction due to defects in materials and workmanship for a period of FIVE 5 YEARS beginning at the date of the purchase invoice If such malfunction occurs the product will be repaired or replaced at LightSPEED s option without charge during the period and under the limitations stipulated in the data sheet or the user s manual Limited exclusions specifically apply to all microphone elements rechargeable batteries battery chargers and their assemblies also external cables and wires Warranty on microphones microphone elements is limited to original manufacturer s warranty usually ONE 1 YEAR Warranty on LightSPEED NiMH AA rechargeable batteries is ONE 1 YEAR 3 Warranty on LightMic s internal microphone
5. carefully snap the second side of the C clip over the edge of the rail Uncoil sensor wire Connect one end of the sensor cable to the plug on the sensor Loosely secure wire overhead and route it back to the 850iR Connect the other end of the sensor cable into one of the sensor inputs on the back of the 850iR Speaker Installation 1 Locate the speaker installation instructions packed with your Speaker s Follow instructions and mount speaker s Return to this manual to complete the set up of your system sensor jack A Screw the plastic mounting strip to a place high on the wall or in the middle of the solid ceiling Mount the strip horizon tally as shown above Firmly snap the C clip on the back of the IR sensor onto the plastic mounting strip with the sensor plug hanging down if a wall mount or toward the receiver location if ceiling mount Uncoil the sensor wire Screw one end of the sensor cable to the plug on the sensor Route the wire back to the 850iR securing it along the way Connect the other end of the sensor cable to one of the sensor inputs on the back of the 850iR Speaker Install Instructions 850iR User Manual 4 FRONT PANEL CONTROLS we O O 1 POWER Switch POWER Indicator 3 AF Indicators AF These lights This switch is used to turn the flash green when audio voice 850iR ON switch up o
6. d user s voice so they are able to speak at a conversational tone Having the volume set too high will result in feedback and listener fatigue WIRELESS MICROPHONE VOLUME 5 Once initial volume level is set walk around the room and listen for audio dropout and overall audio quality Fine tuning the audio is accomplished by making minor adjustments to the 8 band Graphic Equalizer on the back panel of the See page 3 for hints on setting the EQ receiver amplifier 6 If a second student pass around microphone AN D was purchased with system repeat steps mm x 3 4 but set the operating channel to B gt gt ACHB OFF ON If a HM 70 was purchased see page 16 11 850iR User Manual CHARGING THE LIGHTMIC 1 Ensure That the LightMic is turned OFF y 2 Place the LightMic x into the cradle charger The LED on the cradle N charger will glow red indicating U DO00 charging has started gt LightSPEED 3 When the LightMic is charged the LED on the cradle charger will return to green yy The LightMic can be y left in charger for up to two weeks without degradation to battery life A full charge can be attained in 8 10 hours A fully charged LightMic will last up to eight hours 850iR User Manual 12 SYSTEM INTEGRATION DIAGRAM Video In IR Sensor Teacher s Microphone VGA Out lt IJ Audio Out Speaker s Video Out Audio Out LightSPEED amplifier con
7. er supply only of the type described in these operation instructions or as marked on this LightSPEED product Power Cord Protection Power supply cords should be routed so that they are not likely to be walked upon or pinched by items placed upon or against them Object and Liquid Entry Care should be taken so that objects do not fall onto and liquids are not spilled into the inside of this LightSPEED product Damage Requiring Service This LightSPEED product should be serviced only by qualified service personnel The user should not attempt to service this LightSPEED product Prevent Electric Shock do not use this polarized plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure 850iR User Manual i LES 850iR Classroom Amplification System BOWER AVOLUME IR AF POSITION THE LIGHTMIC Remove the LightMic from the charger and place it around your neck Adjust the neck strap so the top of the microphone rests just below your collarbone TURN ON THE LIGHTMIC CHARGE BATTERIES Turn the microphone ON using Return the LightMic to the cradle the ON OFF switch on the side of charger and recharge the LightMic the LightMic and speak normally at the end of the day ii 850iR User Manual Safety Instructions Daily Use Instructions 850iR Classroom Amplification System System Components System Installat
8. ion Unpacking Your System Location of the Receiver Amplifier IR Sensor Placement IR Sensor Installation Suspended Ceiling Mount Wall Solid Ceiling Mount Speaker Installation Front Panel Controls Rear Panel Controls LightMic Controls and Connections lea a E oo 0 o eee E AAN eee 10 Finalizing Receiver Amplifier Final Check System Operation Charging the LightMic System Integration Diagram Input from External Audio Equipment Output to Personal FM Transmitter Operating the Optional HM 70 Handheld Mic Charging the HM 70 Tips on Classroom Amplification Warranty Statement Troubleshooting Guide System Specifications Individual Components and Optional Accessories User Notes User Notes User Notes User Notes 850iIR CLASSROOM AMPLIFICATION SYSTEM 850iR Receiver Amplifier Optional HM 70 Handheld Microphone Congratulations on your purchase of the 850iR Classroom Amplifica tion System This simple yet power ful technology provides crystal clear sound throughout the classroom allowing every child to hear every word every time As the teacher speaks into the LightMic pendant style transmitter his or her voice is transmitted to the 850iR and then amplified through the loudspeaker s The standard system includes the 850iR infrared receiver amplifier LT 71 LightMic transmit ter SR 70 infrared sensor and speaker package 1 850iR User Manual SR 70F R Sensor LT 71 LightMic Transmitter The 850iR
9. is FIVE 5 YEARS Prepaid shipping label provided by LightSPEED factory or an authorized warranty service center Warranty does not extend to finish appearance items or malfunctions due to abuse or operation other than specified conditions nor does it extend to incidental or consequential damages Repair by other than LightSPEED or its authorized service agencies will void this guarantee Information on authorized service agencies is available from LightSPEED Technologies Inc Our Service Department 800 732 8999 6 30 a m 5 p m PST will handle all your repair replacement needs 850iR User Manual 18 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 e Confirm batteries are charged e Turn the 850iR on Confirm that each night Make sure the LT 71 is turned off while charging so that it will attain a full charge Full charge will last eight hours Make sure the charge cord is connected to the cradle charger Inspect the battery contacts Clean and adjust if necessary Hearing Static e Ensure sensor is in optimum location refer to sensor placement in manual A single sensor will cover a 1600 sa ft enclosed classroom Ensure that no other LT71 HM70 is the POWER light located on the front panel s
10. is a two channel receiver amplifier that allows the use of up to two microphones simultaneously and up to three additional audio input sources such as TV VCR DVD CD MP3 etc In addition LightSPEED offers various speaker options that are included with your system to provide optimal sound in rooms of all shapes and sizes The LT 71 LightMic is a wireless pen dant style transmitter This two chan nel rechargeable unit is clipped to a lavaliere cord and worn around the neck for teacher use or it can be used like a standard handheld microphone for the students to pass around when speaking SYSTEM COMPONENTS 850IR Infrared Receiver Amplifier Sensor Cable JUUUUL SR 70F Infrared Sensor Charging Cradle LT 71 LightMic Transmitter Speakers and _ Speaker Wire Optional HM 70 Handheld Microphone 4 Helpful Keep ALL packaging materials If the system must be returned it will be quick convenient y Hint and undamaged 850iR User Manual 2 SYSTEM INSTALLATION Unpacking Your System Location of the Receiver Amplifier e Ensure that you have received Place the 850iR on a flat surface like a all of the components of bookcase countertop or optional Light your system SPEED wall shelf part AC 800WB e B50iR Receiver Amplifier e Select a location that is close to a standard wall electrical outlet and power supply e Wires will be routed back to the amplifier so select a location that is e
11. o to 3 5 mm mono MC TK250LTM 21 850iR User Manual USER NOTES Record your system serial numbers and purchase information This is helpful when ordering additional components accessories and or warranty service Components Serial Number 850iR Microphones Sensors Speakers Purchase Information Your School Organization District 850iR User Manual 22 USER NOTES 23 850iR User Manual fF 8501R User Manual USER NOTES 850iR User Manual 24 USER NOTES 25 850iR User Manual LightSPEED Technologies Inc 11509 SW Herman Rd Tualatin OR 97062 800 732 8999 www lightspeed tek com S LightSPEED
12. r OFF from the microphone is detected switch down When the POWER 4 A VOLUME Controls the volume switch is in the ON position the level of the teacher microphone POWER light will glow red that is switched to Channel A IR Indicators IR These lights will Rotating the knob clockwise glow red when the corresponding increases output level microphone is turned on This light confirms the 850IR is receiving a steady infrared signal 5 850IR User Manual 5 B VOLUME Controls the volume level of the optional second microphone that is switched to Channel B Rotating the knob clockwise increases output level AUDIO INPUT VOLUME COMPUTER Controls the volume of audio coming from a computer connected to the rear panel COMPUTER INPUT jack TV VCR Controls the volume of the source connected to the rear panel TV VCR INPUT CD DVD Controls the volume of the source player connected to the rear panel CD DVD INPUT 850iR User Manual 6 REAR PANEL CONTROLS 1 SPEAKER OUTPUTS 1 4 These 4 CHARGERS These jacks charge the binding post connectors are used to connect the 850iR to the loudspeakers Depending on the speaker package all the outputs may not be used SPEAKER ON OFF These individual speaker switches can be used to turn off the audio in a specific area of the classroom where there may be a learning group or quiet time DC POWER Plug the 24 V power supply into this jack Ligh
13. s could interrupt signal trans mission from the microphone to the receiver Speak directly into the microphone at a normal level Slowly increase the B VOLUME until you can just hear your voice Slide the switch to the OFF position to turn off the HM 70 Make sure the power indicator light is off 850iR User Manual 16 CHARGING THE HM 70 HANDHELD MIC 1 Ensure the HM 70 Handheld 3 The power indicator light next to Microphone is turned OFF ON OFF switch on the side of the unit The 850iR can be left on but must be connected to AC power in order to charge the microphone Connect the loose end of the charging cable into the jack labeled CHARGER on the side of the HM 70 Connect the larger end of the charging cable to one of the CHARGERS jacks on the back of the 850iR The HM 70 s rechargeable batteries are factory installed A Helpfu int 17 850iR User Manual the power switch glows green when the cable is connected and charg ing correctly The light goes out when fully charged Batteries will charge in 8 to 12 hours A fully charged battery will run for up to 8 hours of continuous operation 4 The HM 70 can remain charging for up to 10 days Overcharging will shorten battery life The HM 70 does not use a cradle for charging The charging cable must be plugged directly into the charging jack in the transmitter TIPS ON CLASSROOM AMPLIFICATION Speak in a natural voice A norm
14. sa Classroom Amplification System ER User Manual S LightSPEED SAFETY INSTRUCTIONS h CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated danger ous voltage within the product s enclosure that may be sufficient magnitude to constitute a risk of electric shock The exclamation point within an equilateral triangle is intended to alert the user to the pres ence of important operating and maintenance servicing instructions in the literature accom panying the appliance Read Instructions All the safety and operation instructions should be read before this LightSPEED product is operated Retain Instructions The safety and operating instructions should be kept for future reference Heed Warning All warnings on this LightSPEED product and in these instructions should be followed Follow Instructions All operating and other instructions should be followed Water and Moisture This Light SPEED product should not be used near water Heat This LightSPEED product should be situated away from heat sources such as radiators etc Power Sources This LightSPEED product should be connected to a pow
15. system which adds up to additional two microphone channels PAGING INPUT and AD When the optional PageFirst sensor is connected to this input the audio being amplified through the 850iR will mute as an announcement is made through the school PA system ensuring important messages are never missed 10 8 BAND GRAPHIC EQUALIZER The Sliding controls adjust the levels of the various audio frequencies This allows the installer to properly equalize the system to produce optimum sound quality SENSOR INPUT The IR sensor cable connects to either of these two inputs Connect additional sensors to the 850iR to cover large or odd Shaped classrooms SENSOR SHORT This LED glows red when there is a short in the sensor or cable 850iR User Manual 8 LIGHTMIC CONTROLS AND CONNECTIONS JUUUUU gt LightSPEED ON OFF MUTE Switch This switch located on the side of the LightMic turns the unit on or off mute Channel Select Switch CH A B This switch allows for selection between Channel A or B If you are using a single microphone transmit ter for your system we recommend using Channel A Power Charge LED Indicator The light glows blue when the LightMic is powered ON External Microphone Input MIC Use the 3 5 mm MIC jack for the optional TK 250 headset microphone part MC TK250LTM 9 850iR User Manual JUUUUU 5 Auxiliary AUX Plug a laptop MP3 player or other audio so
16. t 800 732 8999 6 30 a m 5 p m PST 19 850iR User Manual SYSTEM SPECIFICATIONS Power Output 12 W per channel 48 W total Amplifier Frequency Response 40 Hz to 20 kHz 3 dB Carrier Frequencies IR Signal to Noise Ratio Dynamic Range Maximum Deviation naaa 50 dB Receiver Type Receiver Sensitivity Image and Spurious Rejection Dimensions W x D x H Audio Distortion Built in Microphone Uni directional Electret Battery Power 1 year warranty 2 AA NiMH Rechargeable Mic Level 3 5 mm Line Level 3 5 mm Up to 1600 square feet per sensor 50 ft Plenum rated Mounting Ceiling clip Wall bracket Dimensions W x D x H 4 25 Diam x 2 0 H 850iR Users Manual 20 INDIVIDUAL COMPONENTS OPTIONAL ACCESSORIES Part Number Description RX 850 Infrared receiver amplifier mixer w built in charger LightMic rechargeable microphone transmitter w lavaliere cord batteries and charging cable Handheld microphone transmitter w batteries and charging cable Rechargeable AA battery Nickel Metal Hydride AC TCC7 Charging cable for LT 71 and HM 70 microphones Lavaliere cord for LT 71 PS 24V 2 5 Power supply battery charger for 850iR Infrared sensor with cable and wall or ceiling mounting bracket AC 71CC Cradle charger Contact LightSPEED at 800 732 8999 for loudspeaker information Optional Accessories Noise canceling headset microphone to be used with LT 71 Audio patch cable 2 5 mm mon
17. tMic s and optional handheld microphone with the supplied charg ing cable s and charging cradle ALD AUX AUDIO OUT These output jacks send audio signal to external equipment such as a recorder or an assistive listening device like the LES 370 Personal FM System ADJ These controls adjust the output level of the audio being sent out of the receiver amplifier via the ALD AUX AUDIO OUT jacks PageFirst Emergency Page Priority This optional feature interfaces with an independent classroom paging system When the page is broadcast the system is muted ensuring important and emergency school wide messages are never missed How it works PageFirst sensor clip is hung around the lead wires attached to the in room paging speaker The clip is hard wired to the 850iR As a page is broadcast the sensor clip detects the audio signal though induction and immediately mutes the 850iR When the page is over the audio to the 850iR returns to normal For full installation instructions refer to the install sheet included with the optional PageFirst sensor 7 850iR User Manual PAGING INPUT 7 AUDIO INPUTS e COMPUTER Accepts stereo signal from computer via 3 5 mm cable e TV VCR Accepts stereo signal from TV VCR via RCA cable e CD DVD Accepts stereo signal from CD DVD player via RCA cable 800iX INPUT This input jack allows for interface with the LightSPEED 800iX wireless microphone
18. trols the volume of each source individually one volume control for each source 13 850iR User Manual INPUT FROM EXTERNAL AUDIO EQUIPMENT Below are instructions on how to connect an external audio device like a TV VCR CD DVD or computer COMPUTER e D e e Fr AUDIO INPUT UE 1 Turn the audio input volume controls on the front panel all the way down fully counterclockwise 0 fal ren CP AUDIO INPUTS 0 2 E 00 2 Connect a patch cable not included from the audio source in the corre sponding audio input jacks on the back of the 850iR COMPUTER AUDIO INPUT VOLUME 3 With both the 850iR and audio source power on adjust the corresponding volume control on the front panel until the desired level is achieved NOTE Be careful to not overdrive the volume to the loudspeaker s as this can cause potential damage 850iR User Manual 14 OUTPUT TO PERSONAL FM TRANSMITTER 1 Turn the ALD Assistive Listening Device volume control on the back panel all the way down fully counterclockwise AUDIO INPUTS VOL D VOL COMPUTER GP D ADJ ES ALD OUT AUX OUT D ADJ pi Q L ivwcr Pt coov R SENSOR INPU DC POWER CHARGERS x D s E ww n o FF ON 24vpc PAGING INPUT 2 Determine the size and type of audio input jack on the device as many manufacturers products differ in connector size and shape The LightSPEED LES 370 Personal FM
19. urce into this jack to wirelessly transmit the audio signal to be played through the 850iR Charger Input CHARGER A charging cradle comes standard with the 850iR for daily charging of the LightMic If desired the LightMic can also be charged directly from the cable by plugging it into this charging jack INITIAL SET UP FINALIZING RECEIVER AMPLIFIER CONNECTIONS 1 Ensure the power switch is in the OFF position 2 Ensure speaker wire and all front panel volume controls are turned connections are secure fully counter clockwise Y and not frayed Each speaker switch located ROC a to the right of the POWER e A VOLUME B VOLUME speaker jack should be y Page A in the ON position gt OO ee ES LightSPEED D h N WIRELESS MICROPHONE VOLUME 3 Connect the charging cables to yellow charging jacks labeled CHARGERS The loose end will be connected to the cradle charger input jack or directly to microphone Y V AUDIO INPUTS Y VOL D vo COMPUTER 0 0 ADJ ALD OUT AUX OUT a ADJ D SHORT a a CD DVD SENSOR INPUTS O DC POWER CHARGERS H Q INPUT a Ana mi Q D cP OFF ON gt 4vpc lt PAGING INPUT 4 Connect any auxiliary audio sources to corresponding labeled input gt gt 5 Ensure sensor cable is attached securely 6 Connect DC end of power supply CA 9 AUDIO INPUTS ADJ ALD OUT AUX OUT Aou COMPUTER to the black power jack labeled 0 o 2
20. witch is on Confirm signal is being received at the amplifier The IR signal light will be lit red indicating a Signal is being received Confirm microphone is function ing Next to the IR signal light is the AF signal light This light will flicker green as audio is picked up by the microphone indicating activity Ensure speaker switch on the amplifier is in the ON position for each speaker that is connect ed to the amplifier Check con nections on both the amplifier operating on the same channel and speaker Confirm that the speaker wires are connected correctly to the back of the 850iR refer to speaker install guide and make sure that the speaker switch for that output jack is in the ON position If an external microphone is in use try another LightMic that is known to be working if available to isolate the problem If static persists with known good microphone the LT 71 input jack has damage and will need service Low Volume or Feedback e 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 a
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