Instruction/ maintenance manual of the product LT-700-150 Listen Technologies
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Dear Valued Customer, Thank you for choosing Listen! All of us at Listen are dedicated to providing you with the highest quality products available. We take great pride in their outstanding performance because we care that you are completely satis fi ed.
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1 Package Contents 3 150 MHz Speci fi cations 4 Quick Reference 5 Setup Instructions 7 Operating Instructions 9 Programming Instructions 10 Charging Batteries 11 Wall Transformer Operation 12 Channel.
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3 LT-700 Package Contents Optional Accessories See page 20 Listen Part Number LT-700-150 (150 MHz) LT-700-150 Contents • LT-700-150 (150 MHz).
4 LT-700 Speci fi cations Architectural Speci fi cations The portable FM transmitter shall be capable of broadcasting on 32 channels. The unit shall incorporate a microphone sensitivity switch. The device shall broadcast on both wide and narrow band channels with a SNR of 80 dB or greater.
5 LT-700 Quick Reference LT-700 Front 3.5 mm Input Jack A Listen microphone or line level cable connects here. MUTE / TALK switch (more information on page 9) Power Switch Press PWR switch to turn unit on. Press and hold to turn unit off. When in PROGRAM mode, this switch is used to toggle the lock out (L/O) mode for a channel.
6 LT-700 Inside Access Door Mic Sensitivity Switch - it arrives set at MED, which will work for most microphones. If your mic level is too low, change the switch to HI; if the level is too high, switch to LO.
7 LT-700 Setup Instructions 1 2 3 4 5 Remove the product Remove outer packaging and plastic cover. Inspect for physical damage. If damage is apparent, please contact Listen Technologies Corporation technical support for assistance. See page 19 for contact information.
8 LT-700 Setup Instructions (cont.) 6 7 Place Batteries in Unit Place two (2) AA batteries in the compartment, making note of the battery polarity shown in the battery compartment, and again verifying that the BATTERY SELECT switch is in the correct position for the batteries you are using.
9 LT-700 Operating Instructions 1 3 2 Make sure the unit is on When you press the power button, the LED on top of the unit will be illuminated and the LCD display will be visible. Select the channel for transmitting Please refer to Channel Selection on page 13 for guidelines on choosing an interference-free channel.
10 LT-700 Programming Instructions 1 2 3 The LT-700 can be programmed to transmit on a limited number of channels. For applications where users are required to select a channel (such as classrooms or language interpretation), and you don’t want them to have to scroll through all of the available channels, this feature is ideal.
11 1 LT-700 Charging Batteries 2 3 Connect LA-208 here and plug it into an AC wall outlet. IMPORTANT: DO NOT ATTEMPT TO CHARGE ANY TYPE OF BATTERY OTHER THAN NiMH (NICKEL METAL HYDRIDE) with your Listen equipment . Alkaline batteries may explode when connected to a charger.
12 The LT-700 will operate normally when connected to a wall transformer. Use Listen part number LA-208, available from any Listen dealer. Connect the wall transformer to the jack on the side of the LT-700 marked “PWR/CHG” and plug the wall transformer into a grounded AC outlet.
13 Channel Selection It is important to choose channels that are free from interference to achieve proper operation of your Listen equipment. This process is trial and error. Before turning on the transmitter, listen to the wide band channels. Listen to the audio through the headphone or on a Listen receiver or receiver / speaker.
14 Listen SQ™ - Improving your Listening Experience People are accustomed to listening to low noise, high fi delity audio (delivered via CD, DVD, etc.). FM radio systems, such as those made by Listen, have more inherent noise compared to most sound systems.
15 RF Reception Maximization Strategies For proper and dependable operation, Listen receivers should receive a strong and consistent signal from the originating transmitter.
16 150 MHz Compatibility Chart Channel Frequency 01 150.900 02 152.400 03 151.500 04 152.100 05 151.200 06 151.800 07 150.850 08 150.950 09 151.000 10 151.050 11 151.100 12 151.150 13 151.250 14 151.300 15 151.350 16 151.400 17 151.450 18 151.550 19 151.
17 LT-700 Troubleshooting Troubleshooting The LT-700 has no power Make sure the unit has fully charged batteries, or has a Listen LA-208 wall transformer connected to it. Press the ON button. If this does not work, try a different set of batteries. Make sure the batteries are installed correctly.
18 LT-700 Troubleshooting (cont.) Troubleshooting There is not sufficient range The LT-700 is a portable transmitter that uses the microphone cable as an antenna and the range will vary depending on the location of the receivers compared to the transmitter.
19 Warranty & Contacting Listen Warranty Listen Technologies Corporation (Listen) warrants its transmitters and receivers (LT-82, LT-700, LT-800, LR-42, LR-44, LR-400, LR-500) to be free from defects in workmanship and material under normal use and conditions for the useful lifetime of the product from date of purchase.
20 Accessories Optional Accessories LA-261 Lavalier Microphone LA-262 Over-the-Head Microphone LA-270 Noise Canceling Microphone LA-274 Hand-Held Microphone LA-276 Collar Microphone LA-277 Conferencin.
21 Notes.
Listen Technologies Corporation 14912 Heritagecrest Way Bluffdale, Utah 84065-4818, U.S.A. +1.801.233.8992 1.800.330.0891 North America +1.801.233.8995 fax www.
An important point after buying a device Listen Technologies LT-700-150 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Listen Technologies LT-700-150 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Listen Technologies LT-700-150 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Listen Technologies LT-700-150 you will learn all the available features of the product, as well as information on its operation. The information that you get Listen Technologies LT-700-150 will certainly help you make a decision on the purchase.
If you already are a holder of Listen Technologies LT-700-150, 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 Listen Technologies LT-700-150.
However, one of the most important roles played by the user manual is to help in solving problems with Listen Technologies LT-700-150. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Listen Technologies LT-700-150 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
