Listen Technologies LR-500, LR-300 user manual LR-400 Charging Batteries

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Charging Batteries

LR-400 Charging Batteries

LR-400

The LR-400 and all Listen receivers are unique because they have SmartCharge™ chargers built in. When any of these units are connected to an LA-202 wall transformer or dropped into a Listen charging case, NiMH batteries will be charged.

To charge the batteries using the LA-202 wall transformer, plug the trans- former into the jack marked “PWR/CHG” on the side of the unit. The unit can be operated while the batteries are charging.

To charge the batteries using a drop-in charger, simply place the unit into a slot in the charger and connect the charger to power. Make sure the unit is fully seated in its slot.

One of several charging cases available from Listen. Check the Listen web- site for more details.

SmartCharge™ uses a pulse charging, which greatly extends the life of Nickel Metal Hydride (NiMH) batteries. The entire charging process takes 13 hours. Listen recommends that you allow the charger to complete its full cycle every time for maximum battery life.

Connect LA-202 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. Other risks of charging non-NiMH batteries include destruction of property or fire.

IMPORTANT: In order to charge NiMH batteries, the BATTERY SELECT switch in your Listen product must be set to the NiMH setting. Use a pen or small screwdriver to move the switch (located in the battery compartment) to the proper position.

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Contents

User’s Manual Welcome to Listen Receivers Table of Contents This page intentionally left blank LR-500 Programmable Display Receiver LR-500 Package Contents Listen Part Number Optional AccessoriesLR-500 Table of Contents LR-500 Specifications Architectural SpecificationsLR-500 Specifications Quick Reference LR-500 Front 5mm Input Jack Listen earpiece or headset connects hereQuick Reference LR-500 Inside Access Door LR-500 Top of UnitLR-500 Battery Indicator Quick Reference LR-500 Look & Listen DisplayLR-500 Setup Instructions Open the front access doorSelect Battery Type Remove the productSet SQ switch Place Batteries in UnitConnect an Earphone or Headset Turn the Unit OnSelect ChannelsLCD display will Set SquelchLR-500 Operation Instructions Find an audio transmission using Seek Adjust the volume controlTo Lock into Only One Channel Is the Channel Locked on My Receiver?Enter the Program mode LR-500Programming InstructionsLocking Out Unwanted Channels Use the UP and Down keys to select channelsLR-500 Squelch SquelchSquelch Programming Instructions Squelch ProgrammingLR-500 Charging Batteries LR-500 ChargingLR-500 Charging Batteries LR-500 Wall Transformer Operation This page intentionally left blank User’s Manual LR-400 Package Contents Listen Part Number LR-400 Table of Contents LR-400 Specifications Specification LR-400-072 LR-400-216LR-400 Specifications Quick Reference LR-400 Front LR-400 Top of UnitQuick Reference LR-400 Inside Access Door Battery Select SwitchLR-400 Battery Indicator Quick Reference LR-400 Look & Listen DisplayLR-400 Setup Instructions Set SQ switch Select Channels See pages 36 and 37 for squelch and programming information LR-400 Operation Instructions Find an audio transmission using Seek LR-400 Squelch Squelch Programming Instructions LR-400 Charging Batteries LR-400LR-400 Charging Batteries LR-400 Wall Transformer Operation User’s Manual LR-300 Package Contents Listen Part Number LR-300 Table of Contents LR-300 Specifications SpecificationsLR-300 Specifications Quick Reference LR-300 Front Quick Reference LR-300 Inside Access Door LR-300 Top of Unit LR-300 Setup Instructions Place Batteries in Unit LR-300 Operation Instructions LR-300 Operation & Squelch LR-300 Charging Batteries LR-300LR-300 Charging Batteries LR-300 Wall Transformer Operation Supplementary Information Channel Selection Channel Selection Listen SQ SQ SummaryRF Reception Maximization Strategies 72MHz Compatibility Chart Narrowband 216MHz Compatibility Chart Compatibility Chart Receiver Troubleshooting LR-300, LR-400, LR-500 Receiver has no powerThere is no audio Audio is distortedReceiver Troubleshooting Cannot pick up the signal on the receiverThere is not sufficient range Users keep changing channelsMy batteries are not charging Want to run the unit from a wall transformerCompliance Notice FCC Statement Warranty Optional Accessories Earphone Options Optional Accessories Connector Options Professional Camcorder CablePage

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