Instruction/ maintenance manual of the product Listening Enhancement System LES 600 Series LightSpeed Technologies
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May 2002 1-800-732-8999 www .lightspeed-tek.com LightSPEED T echnologies, Inc. User Manual LES 600 Series Listening Enhancement System tm for Sound-Field Classr oom Amplification.
Several studies validated by the U.S. Department of Education and the Educational Audiology Association verify that poor classroom acoustics, high ambient noise, and temporary mild hearing loss among children place many students academically at risk.
4 LES 600 OPERA TING INSTRUCTIONS Power for Y our LES 600 Receiver/Amplifier 1 Check that: • Both front panel micr ophone volume controls (MIC 1 VOLUME and MIC 2 VOLUME) are set to minimum (turned fully counter -clockwise).
LES 600 OPERA TING INSTRUCTIONS 5 Power for Y our Belt-Pack T ransmitter & Micr ophone 1 Ensure the Belt-pack T ransmitter is turned OFF . 2 Y our Belt-pack T ransmitter has its internal rechargeable batteries already installed.
6 LES 600 OPERA TING INSTRUCTIONS 4 NiMH batteries will usually maintain their charge for a full day of normal classroom use. Always switch the T ransmitter OFF when not in use (lunch hour , quiet times, etc.
LES 600 OPERA TING INSTRUCTIONS 7 Positioning Y our Microphone After the microphone is connected to the belt-pack T ransmitter , position the microphone as described below: 1 Lavaliere Micr ophone : The lavaliere micr ophone should be hung around the neck as illustrated, r esting on your collar bone.
8 LES 600 OPERA TING INSTRUCTIONS 3 When speaking at a normal voice level, the green AF INDI- CA TOR on the Receiver/Amplifier fr ont panel should flash on and off as the voice level goes up and down.
3 The batteries will fully charge in about 8-12 hours. 4 When in normal use, it is best to leave batteries on the charger until used, since there is a small amount of discharge after 48 hours. However , do not leave battery(ies) plugged into the charger for mor e than 5 days as it will significantly shorten your battery life.
Connecting to Other Audio Equipment 10 LES 600 OPERA TING INSTRUCTIONS 8 When speaking at a normal voice level, the green AF indi- cator light (on the Receiver/Amplifier front panel) should flash on and off as the voice level goes up and down.
LES 600 OPERA TING INSTRUCTIONS 11 and T elex transmitters use 2.5mm and 3.5mm audio input jacks, respectively . W ith the Receiver/Amplifier turned ON, increase the Mixed Audio Output LEVEL ADJUST slowly clockwise until you reach a comfortable volume.
12 LES 600 OPERA TING INSTRUCTIONS These helpful suggestions are pr ovided to maximize the successful use of your new Classroom Amplification system: • Involve your students in this new process right fr om the beginning.
• T ur n the body-pack T ransmitter and/or the Hand-held Microphone OFF whenever leaving the classr oom. • Recharge batteries each night. Operating time (actual usage) f or the T ransmitter when using the rechar geable batteries should be more than adequate for a typical school day .
14 LES 600 OPERA TING INSTRUCTIONS Power Indicator: When power is switched on, the red POWER light will come on. Radio Frequency Indicator: The RF Indicator displays that the LES 600 is receiving a radio signal from the instructor’ s body-pack T ransmitter (or Hand- held Microphone).
Power and V olume Switch for Micr ophones: Rotating the Mic 1 V olume control or Mic 2 V olume control clockwise past the first “click” turns the LES 600 on. Continuing to rotate this knob clockwise will incr ease the volume of the wireless micr ophone through the speaker system.
17 & 19 16 LES 600 OPERA TING INSTRUCTIONS DC Power Connector: The Receiver/Amplifier requires a 15-volt, 2.4 Amp DC power supply . The center conductor is positive (+) polarity . Caution : Power supplies from dif ferent manufacturers have various output voltages, current ratings, and polarity .
LES 600 OPERA TING INSTRUCTIONS 17 Aux1 and Aux2 Input Jacks: The AUXILIAR Y INPUT jack is used to connect to an external audio source (for example, a CD or tape player to add back- ground music) to mix with your voice audio fr om the wireless microphone.
18 LES 600 OPERA TING INSTRUCTIONS Please go through this checklist befor e calling LightSPEED T echnologies Service Department. Battery Check • T ransmitters are char ged via a jumper cable from the back of the Amplifier . Make sure plugs are secured, and in the pr oper jacks.
LES 600 OPERA TING INSTRUCTIONS 19 Low V olume • Check volume level on Receiver and adjust as necessary . • If volume is too low , check the “MT” adjustment inside the battery compartment of the belt-pack T ransmitter . Clockwise adjustment of the “MT pot” will increase volume.
20 LES 600 OPERA TING INSTRUCTIONS • Check to confirm speaker wires are in the corr ect wire terminals on the back of the Receiver/Amplifier and confirm that the speaker switch for that speaker output is in the ON position. Black (or black stripe) to black terminal.
LES 600 OPERA TING INSTRUCTIONS 21 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 interfer ence that may cause undesired operation.
22 LES 600 OPERA TING INSTRUCTIONS Five Year Limited Warranty to Original Pur chaser LightSPEED 600-series Classroom Amplification Systems ar e guaranteed against malfunction due to defects in materials and workmanship for a period of five years, beginning at the date o f the purchase invoice.
An important point after buying a device LightSpeed Technologies Listening Enhancement System LES 600 Series (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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If you already are a holder of LightSpeed Technologies Listening Enhancement System LES 600 Series, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime LightSpeed Technologies Listening Enhancement System LES 600 Series.
However, one of the most important roles played by the user manual is to help in solving problems with LightSpeed Technologies Listening Enhancement System LES 600 Series. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device LightSpeed Technologies Listening Enhancement System LES 600 Series along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
