Lightspeed Technologies, Inc.
Contents
1. LightSPEED t LES 39I SOUNDPAK SYSTEM LES 391 A A A USER GUIDE gt gt gt A 370T A TK 250 gt gt gt Welcome Your LightSPEED LES 391 SoundPak is a compact portable amplification system that will provide clear sound between an instructor and student The transmitter is conveniently stored in the carrying case of the LES 391 The instructor speaks into a lightweight comfortable headset microphone that is connected to a small transmitter Just plug in the mic turn on the transmitter and SoundPak and you re ready to go Did Get Everything The LES 391 SoundPak system is made up of the 380 receiver amplifier that fits into a carrying case with a compartment divider the 370T transmit ter the TK 250 headset microphone rechargable batteries 6 AA inside the SoundPak and one AA for the transmitter the BC 370 Wall Charger 370T the BC 1A Wall Charger LES 391 and this user guide Before You Begin This system ships with rechargable batteries For proper operation it is important that the batteries in both 370T and LES 391 be charged over night Power switches for both units should be in the OFF position during charging The 370T transmitter is recharged by using the BC 370 wall charger with charger cord The SoundPak is recharged by using the BC 1A wall char ger Optimum charging time is 8 10 hours Charging indicator LEDs should light when proper connecti2. that to which the television radio is connected e Consult LightSPEED for help Warranty ONE YEAR LIMITED WARRANTY TO ORIGINAL PURCHASER The LES 391 is guaranteed against malfunction due to defects in materials and workmanship for a period of one year beginning at the date of original purchase If such a malfunction occurs the product will be repaired or replaced at our option without charge during the period and under the limitations stipulated in the data sheet or this user s manual Limited exclu sions specifically apply to microphone elements and their assemblies also external cables wires and batteries Warranty on microphones microphone elements is limted to the original manufacturer s warranty If delivered prepaid to the LightSPEED warranty service center the unit will be returned prepaid 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 so the above exclusion may not apply to you Repair by other than LightSPEED or its authorized service agencies will void this guarantee Information on authorized service agencies is available from LightSPEED LightSPEED offers a 30 day money back guarantee on the purchase price of this product All shipping and handling costs are the responsibility of the purchaser
3. time If you are going to store these products for 5 or more days they should be charged for about 8 hours and then stored in a relatively cool location If the length of storage time is several weeks or more the batteries should then be recharged before using This system is shipped with Nickel Metal Hydride NiMH rechargable batteries They do not develop a memory problem like NiCad batteries but these batteries should not be fully discharged The best battery management is to charge the batteries for 8 to 10 hours and then unplug them from the charger It is okay to charge the system for short periods of time System Care 370T Care Cleaning the microphone jacks and battery contacts will help ensure that your system gives you years of reliable operation We recommend using a deoxidizer or contact cleaner every 2 or 3 months Battery Maintenance amp Care e When replacing batteries in the 370T or the recevier amplifier pay close attention to polarity matching to etc e Batteries should fit snugly against the contact points inside the battery compartment e Batteries are to be charged each night and over the weekends They should not be left charging over extended periods such as through the summer or during Christmas and spring breaks Prior to extended breaks systems should be fully charged and stored in a cool dry place After extended breaks re charge batteries prior to initial use Do not attempt
4. ng the student turn on the LES 391 power switch by rotating the Power Vol switch clockwise until it clicks on Continue to rotate the volume knob clockwise until the desired volume is achieved CAUTION If you increase volume too much feedback may occur a howling sound To eliminate this problem decrease the volume level and or move the TK 250 farther away from the LES 391 6 To conserve transmitter battery life the LES 391should be turned off when not being used Features Dual Channel The LES 391 comes equipped with two frequency channels Select the fre quency that works best for the classroom Be sure that both the 370T and the LES 391 are on the same frequency Microphone Input he LES 391 is equipped with a microphone jack on the top This supplies bias voltage in the event that it is needed Headphone Output he LES 391 has a headphone jack on the side of the unit that allows private listening Micro Link Compatibility he LES 391 frequencies are designed to be compatible with MicroLink frequencies of Phonak Group A hand held wireless microphone is available please contact Lightspeed for more information Troubleshooting Please go through this checklist before calling LightSPEED Technologies Service Department Note Most problems associated with wireless FM systems are directly related to low battery power Check the batteries and chargers Battery Check e Confirm batteries are cha
5. on is made BC 370 Wall Charger with 370T BC 1A Wall Charger with SoundPak Daily Set Up IT S EASY 1 After being fully charged remove the charging cords from the 370T and the LES 391 2 Check that the frequency on the 370T and the LES 391 match for example both set on A or both set on B These channel switches are located on the side of the 370T and on the top of the LES 391 3 Insert the TK 250 plug into the mic jack on the top of the 370T and position the TK 250 along the left jaw line Proper positioning is achieved by running the headband over the top of the left ear around the back of the head not over the top and then over the right ear The microphone element should be about an inch from the left corner of the mouth with the rounded portion of the element under the wind screen facing towards the mouth The TK 250 boom is adjustable If the headband needs to be resized this can be done by grasping both ends of the wire headband and either stretching it farther apart or rolling the loop into a tighter circle The band is made of steel wire and should easily adjust to various head sizes 4 Rotate the volume knob on the 370T to approximately mid way you may need to adjust this later depending on the volume of the teachers voice Slide the power switch all the way to the left to the ON position note the center MUTE position un With the front of the LES 391 TK 250 Headset Microphone faci
6. rged each night With proper charging batteries should last about one school year e Confirm charging LED is on while charging e Be sure the 370T and LES 391 are turned off while charging Hearing Static Test the 370T with a fully charged AA battery Confirm the the TK 250 cable is inserted securely into the 370T Check battery contacts Clean if necessary If static occurs only when wiggling the TK 250 cord determine whether the static is coming from the cable or the 370T jack by firmly holding the plug into the jack and moving the cord along its length If you have access to another microphone try it in the 370T If it works your original microphone may need to be repaired If the system checks out okay and you still hear some occasional static or popping you may be experiencing radio frequency interference RFI If the microphone is okay and you think it may be interference try switching the channel to the other frequency and see if the interference goes away Confirm that your frequency is not being duplicated by another wireless FM system within the building Continued RFI may require exchanging your system for one with a different frequency Low Volume Check volume level on LES 391 and adjust as necessary Clockwise adjustment of the volume knob will increase volume If volume is too low check to be sure that the batteries are properly charged in the 370T and the SoundPak Sound Fades In and Out Drop Out Te
7. st the 370T with a fully charged AA battery Make sure the batteries in the LES 391 are properly charged as well Check volume level on the 370T Normal levels should be achieved with the volume knob set in the middle If the teacher has a quiet voice it may need to be set at a higher level No Sound From Speaker Check the LES 391 volume level Confirm the 370T and SoundPak have matching frequencies A with A or B with B Confirm the TK 250 cable is securely inserted into the 370T Confirm the 370T power switch is turned on and that its power LED is lit Confirm that the LES 391 is turned on and that the power LED is lit Confirm that there are no headphones plugged into the headphone jack Do not attempt to charge alkaline batteries they can overheat and expand creating a significant hazard and damaging equipment Maintenance The LES 391 system is designed to be durable and trouble free for many years of use The largest maintenance issue is improper battery management Both the 370T battery and the LES 391 batteries need to be charged daily in order for the system to operate properly Correct charging procedure also has a great impact on the overall useful life of the batteries In order to allow the charger to completely charge the battery the 370T and LES 391 power switches need to be in the OFF position during charging The 370T and LES 391 should not be left plugged into the chargers for ex tended periods of
8. to charge alkaline batteries they can overheat and expand creating a significant hazard and damaging equipment If you have gone through this checklist and are still having problems write down the serial number and model number of your system and call LightSPEED Technical Services at 800 732 8999 or email at info lightspeed teck com FCC Notice This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment This equipment has been tested and found to comply with the limits of a Class B Digital Device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation If this equipment causes harmul interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the television radio antenna e Increase the separation between the 370T and television radio e Connect the equipment into an outlet on a circuit different from
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