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Listen Technologies LA-140, Руководство по конструкции

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38

LT-82 LT-82

Design GuideDesign Guide

LT-82

LT-82 Setup and Operating Instructions

1

Unpack the Product

Remove outer packaging and plastic cover. Verify all components are 

present and no physical damage has occurred to the product. 

2

If rack mounting the transmitter(s), install the optional rack mount kit (part LA-326) according to the 

instructions included with the kit.

Mount LT-82(s) in Rack (if desired)

3

If installing more than one transmitter (for multi-channel applications) it will be necessary 

WRGDLV\FKDLQWKHWUDQVPLWWHUV&RQQHFW5)RXWSXWRQÀUVWWUDQVPLWWHUWR5)LQSXWRQVHFRQG

transmitter. Continue daisy-chaining up to four transmitters (four channels).

Interconnect Multiple LT-82s (if necessary)

Rack Mount with dual units installed.

Rack Mount with single unit installed.

4

Connect RF output on transmitter to RF input on radiator. In multi-channel systems 

connect the last transmitter in the daisy-chain to the radiator(s) RF input. See design 

guide for more information on connecting multi-channel systems.

Connect LT-82 RF Signal to Radiator(s) 

RF Signal on coaxial cable

Содержание LA-140

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Страница 3: ...G RX have any comments on how we might improve our products or our VHUYLFH ZH UH KHUH WR OLVWHQ HUH V KRZ WR UHDFK XV 1 801 233 8992 1 800 330 0891 North America 1 801 233 8995 Fax support listentech...

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Страница 5: ...s for LA 140 78 LR 42 LR 44 4 Channel IR Receivers 6SHFL FDWLRQV LR 42 Quick Reference Page 89 LR 44 Quick Reference Page 90 Setup Instructions 91 Operating Instructions 95 Locking Instructions 101 Pr...

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Страница 9: ...Design Guide Design Guide Stationary Infrared Design Guide Table of Contents Infrared Technology Overview 5 System Overview 6 Designing a System 9 Design Tools 21...

Страница 10: ...Design Guide Design Guide Design Guide...

Страница 11: ...DQQRW VHH OLJKW IURP WKH UDGLDWRU LW ZLOO QRW UHFHLYH WKH DXGLR VLJQDO W LV LPSRUWDQW WR SURYLGH VXI FLHQW 5 FRYHUDJH ZLWKLQ a facility so users will not have drop outs of the IR signal This design gu...

Страница 12: ...two LA 140 radiators If you need more than two radiators you will need more power supplies This is discussed later in this document Power is supplied from standard CAT 5 cable while RF from the transm...

Страница 13: ...s supplied with 25 feet 7 6 meters of CAT 5 and RG 58 coaxial cable Multiple Channel System Up to four LT 82 transmitters can be daisy chained together using RG 58 cable to create a multi channel syst...

Страница 14: ...wer cables 4 Listen has provided mounting hardware for most LA 140 mounting situations Due to the higher modulation frequencies it is possible that the RF signal arrives to different radiators at diff...

Страница 15: ...used to ensure good coverage and minimal shading Listen radiators when used with Listen receivers will cover approximately 10 000 ft2 929 m2 for one channel as indicated in the diagram below note the...

Страница 16: ...10 Design Guide Design Guide Design Guide Designing a System Horizontal Polar Pattern Vertical Polar Pattern Single Channel System Single Channel System...

Страница 17: ...are used to prevent shading of the IR signal It is a good idea to provide over lapping coverage like in a sprinkling system of the signal whenever possible to ensure that the signal does not have dro...

Страница 18: ...esign Guide Design Guide Designing a System If there is an area within a room such as under a balcony that is shielded from the main radiation pattern you will need to provide additional radiator s to...

Страница 19: ...UQ ZLOO EH WRR VPDOO WR SURYLGH VXI FLHQW ORQJ WKURZ FRYHUDJH I WKH UDGLDWRU LV PRXQWHG WRR KLJK WKH required angle of the radiator will cause the radiation pattern to be compromised The best height o...

Страница 20: ...VWHS WZR LW is recommended that you draw the room out indicating the location of each radiator in the room and cable runs from the transmitter s and power supplies if any to the radiator We have prov...

Страница 21: ...e system layout worksheet for Power and RF cable lengths delay compensation required number of power supplies and height and angle of radiators Refer to the system layout worksheet example below 5 Com...

Страница 22: ...de The correct setting of the delay compensation is necessary only in systems where there is overlap in coverage between two or more radiators Write the delay setting on the System D RXW RUNVKHHW 7KH...

Страница 23: ...itters required Each transmitter includes a short piece 15 inches of RG 58 coaxial RF cable for multiple channel installation interconnections You do not need to order this cable Transmitters 6B Fill...

Страница 24: ...ith an alkaline battery compartment no batteries You will need to decide whether to use alkaline AAA batteries LA 363 or a rechargeable battery pack LA 364 Alkaline batteries will last about 30 hours...

Страница 25: ...19 Design Guide Design Guide Design Guide Notes...

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Страница 27: ...21 LA 140 LT 82 Design Guide Design Guide Design Guide KEY LT 82 LA 140 RG 58 CAT 5 Room Layout Worksheet...

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Страница 29: ...Design Guide Design Guide System Layout Worksheet 23...

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Страница 31: ...25 LA 140 LT 82 Design Guide Design Guide Design Guide...

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Страница 33: ...5 Cable Preassembled Power Part Number LA 391 LA 393 Cable 1 Cable 2 Cable 3 Cable 4 Cable 5 Cable 6 Cable 7 Cable 8 Cable 9 Cable 10 Cable 11 Cable 12 Note Each radiator includes 25 feet 7 6 meters o...

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Страница 39: ...WHP HVLJQ XLGH DQG 8VHU V 0DQXDO LT 82 Quick Reference Card LVWHQ RQ JXUDWLRQV LT 82 01 North America 7 8 LT 82 03 Euro LT 82 User s Manual Table of Contents 6SHFL FDWLRQV ORFN LDJUDP Quick Reference...

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Страница 41: ...Phono connectors unbalanced 10 10dBu nominal input level adjustable 30dBu maximum impedance 100k ohms Audio Processing Compression can be turned on off Slope adjustable from 1 1 to 4 1 Default 2 1 Con...

Страница 42: ...ction Terminal CAT5 DC Out RF BNC IN OUT Green LED On Off STEREO CONTOUR 3 5MM Stereo Transmit LEVEL Compression Ratio internal adjustment Transmit Level Meter Green LED On Off PROCESS Functions contr...

Страница 43: ...cuts high frequencies 5 QSXW Input additional RF signal here for multi channel systems 5 2XWSXWV 2XWSXW 5 signal to radiator s and or additional LT 82 3RZHU QSXW RQQHFW SRZHU supply here included 3RZH...

Страница 44: ...nsmitter for multi channel applications it will be necessary WR GDLV FKDLQ WKH WUDQVPLWWHUV RQQHFW 5 RXWSXW RQ UVW WUDQVPLWWHU WR 5 LQSXW RQ VHFRQG transmitter Continue daisy chaining up to four trans...

Страница 45: ...Radiator s if desired 6 Powering the LT 82 ATTENTION Do not connect the LT 82 power supply to an outlet until all other power connections within the system have been made This helps to prevent power c...

Страница 46: ...ds When locked a padlock icon will be displayed on the LCD see below After channels have been selected the transmitter s can be locked 8S XWWRQ RZQ XWWRQ Channel select buttons Icon indicates channel...

Страница 47: ...r dynamic microphones or Mic PH Power for condenser microphones Plug your balanced or unbalanced audio source into Input 1 Use the following diagram 8B 3OXJ RXU XQEDODQFHG DXGLR VRXUFH LQWR QSXW DQG V...

Страница 48: ...e stereo mode must be enabled on the transmitter Stereo and Process Mode Descriptions 9B To Disable or Enable Stereo and Process Features 1 Process Mode Process mode is used for Audio Gain Control AGC...

Страница 49: ...units LA 112 RG 58 50 Ohm Coaxial Cable Specify length LA 70 CAT 5 Cable Specify length LA 72 RJ 45 to RJ 45 CAT 5 Coupler LA 115 5 1 WR 1 RXSOHU LA 71 RJ 45 CAT 5 Connector Pkg of 10 LA 127 5 1 RQQHF...

Страница 50: ...44 LT 82 LT 82 Design Guide Design Guide LT 82 Notes...

Страница 51: ...45 LT 82 Design Guide Design Guide LT 82 Notes...

Страница 52: ...46 LT 82 LT 82 Design Guide Design Guide LT 82 Notes...

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Страница 57: ...ctions 55 LED Indications 57 Mounting Your Radiator 58 Accessories for LA 140 78 IR Radiator Mounting Hardware 8QLYHUVDO UDFNHW Tilt Arm A 7LOW UP 7LOW ROW RUQHU 0RXQW UDFNHW DOO R 3ODWH DOO R 3ODWH 0...

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Страница 59: ...60 in 140 x 203 x 66 mm Color LA 140 GY Grey LA 140 WH White Unit Weight 2 1 lbs 95 kg Unit Weight with Wall Ceiling Mounting hardware 2 35 lbs 1 05 kg Shipping Weight 4 0 lbs 1 8 kg Environmental Tem...

Страница 60: ...WFK Adjust the amount of signal delay from the radiator here In single radiator systems the position of this switch does not matter in multiple radiator systems this switch must be set properly see pa...

Страница 61: ...he RF cable can originate either from an LT 82 Transmitter or from a different radiator Connect the RF signal to the radiator See design guide for more information on supplying RF signal to the radiat...

Страница 62: ...tion switch to the ON position on the radiators that are not outputting an RF signal to another radiator Multiple Radiator Systems 5 Set Delay Compensation Switch 5A The position of the delay compensa...

Страница 63: ...Transmitter 9 There are three LEDs located on the bottom center of the front of the radiator These LEDs are very useful for determining the current status of the radiator See below for possible LED c...

Страница 64: ...ugh the following mounting strategies to determine which works best for your application and then follow the instructions for mounting Mounting Hardware Pieces DOO R 3ODWH 8QLYHUVDO UDFNHW Tilt Arm A...

Страница 65: ...1 6FUHZ DOO R 3ODWH WR ZDOO ER XVLQJ LQFOXGHG 0RXQWLQJ DUGZDUH 6FUHZV Screw Wall Box Plate to wall 2 WWDFK 7LOW UP WR DOO R 3ODWH XVLQJ LQFOXGHG 0RXQWLQJ DUGZDUH 6FUHZV WWDFK 7LOW UP LQ VXFK D PDQQHU...

Страница 66: ...onnect CAT 5 and Coaxial cables to appropriate locations on radiator Connect CAT 5 and Coaxial cables LA 140 Mounting your Radiator ATTENTION Note the angle measurements on Tilt Arm B and verify that...

Страница 67: ...UP 7LOW ROW Mounting Hardware Screws Installation Steps 1 DVWHQ DOO R 3ODWH VHFXUHO WR ZDOO XVLQJ ROORZ DOO 0RXQWLQJ 6FUHZV ATTENTION The Wall Box Plate must be used in this installation to provide a...

Страница 68: ...R 3ODWH Pull CAT 5 and Coaxial cables through if necessary 5 Determine correct angle setting to use for the radiator using the design guide see page 13 of design guide Determine correct angle 6 WWDFK...

Страница 69: ...cables 7 The radiator has a safety cable attached to the top of the swing arm This cable must be attached to a secure base to prevent the radiator from falling in the event of a mounting hardware comp...

Страница 70: ...VHFXUHO WR ZDOO 03257 17 DOO R 3ODWH PXVW EH DW OHDVW IRXU LQFKHV IURP FRUQHU WR HQVXUH FRUQHU EUDFNHW ZLOO W LQ FRUQHU Fasten Wall Box Plate to wall 1A If using a wall box wall box must be four inch...

Страница 71: ...WWDFK 7LOW UP WR RUQHU 0RXQW UDFNHW HWHUPLQH FRUUHFW SODFHPHQW RI 7LOW UP E KROGLQJ 5DGLDWRU XS WR RUQHU 0RXQW UDFNHW DQG GHWHUPLQLQJ GHVLUHG SRVLWLRQ LQ FRUQHU Attach Tilt Arm A LA 140 Mounting your...

Страница 72: ...t angle setting to use for the radiator using the design guide see page 13 of design guide Determine correct angle 7 WWDFK 5DGLDWRU WR RUQHU 0RXQW UDFNHW XVLQJ 7LOW UP DQG 7LOW UP 8VH WKH 7LOW ROW WR...

Страница 73: ...ting your Radiator 8 The radiator has a safety cable attached to the top of the swing arm This cable must be attached to a secure base to prevent the radiator from falling in the event of a mounting h...

Страница 74: ...Installation Steps 1 WWDFK DOO R 3ODWH VHFXUHO WR FHLOLQJ Attach Wall Box Plate securely to ceiling 1A I XVLQJ D ZDOO ER DWWDFK DOO R 3ODWH WR ZDOO ER XVLQJ LQFOXGHG 0RXQWLQJ DUGZDUH Screws 1B I DWWD...

Страница 75: ...screws in this install Attach Tilt Arm B 4 WWDFK 7LOW UP WR DOO R 3ODWH WWDFK 7LOW UP LQ VXFK D PDQQHU WKDW LW VLWV DFURVV DOO R 3ODWH XVLQJ Mounting Hardware Screws not up and down on plate Attach T...

Страница 76: ...Plate using Tilt Arm A and Tilt Arm B Connect CAT 5 and Coaxial cables to appropriate locations on radiator Connect CAT 5 and Coaxial cables LA 140 Mounting your Radiator 7 The radiator has a safety...

Страница 77: ...7LOW ROW Mounting Hardware Screws Installation Steps 1 WWDFK 7LOW UP WR 8QLYHUVDO UDFNHW XVLQJ LQFOXGHG 0RXQWLQJ DUGZDUH 6FUHZV 7LOW UP FDQ EH DWWDFKHG WR HLWKHU VLGH RI WKH 8QLYHUVDO DUFNHW Attach T...

Страница 78: ...RU WR HVN 0LF 6WDQG XVLQJ 7LOW UP DQG 7LOW UP 8VH WKH 7LOW ROW WR IDVWHQ WKH WLOW DUPV WRJHWKHU ATTENTION Note the angle measurements on Tilt Arm B and verify that the correct angle is selected before...

Страница 79: ...1XW Attach Universal Bracket to Mic Stand 2 WWDFK 7LOW UP WR 8QLYHUVDO UDFNHW XVLQJ LQFOXGHG 0RXQWLQJ DUGZDUH 6FUHZV 7LOW UP FDQ EH DWWDFKHG WR HLWKHU VLGH RI WKH 8QLYHUVDO DUFNHW Attach Tilt Arm A 3...

Страница 80: ...GLDWRU WR HVN 0LF 6WDQG XVLQJ 7LOW UP DQG 7LOW UP 8VH WKH 7LOW ROW WR IDVWHQ WKH WLOW arms together ATTENTION Note the angle measurements on Tilt Arm B and verify that the correct angle is selected be...

Страница 81: ...h 3LHFHV 8VHG Universal Stand Nut 8QLYHUVDO UDFNHW Tilt Arm A 7LOW UP 7LOW ROW Mounting Hardware Screws Installation Steps 1 WWDFK 8QLYHUVDO UDFNHW WR WULSRG VWDQG XVLQJ HTXLSPHQW LQFOXGHG LQ Attach U...

Страница 82: ...he radiator using the design guide see page 13 of design guide Determine correct angle 5 WWDFK 5DGLDWRU WR HVN 0LF 6WDQG XVLQJ 7LOW UP DQG 7LOW UP 8VH WKH 7LOW ROW WR IDVWHQ WKH WLOW DUPV WRJHWKHU ATT...

Страница 83: ...e previous scenerios except you will be working with two radiators connected together The instruc tions for connecting two radiators together with the LA 342 bracket are included with the bracket Af t...

Страница 84: ...you wish to remote power the radiator s LA 70 CAT 5 Cable specify length LA 72 RJ 45 to RJ 45 CAT 5 Coupler LA 115 5 1 WR 1 RXSOHU LA 71 RJ 45 CAT 5 Connector Pkg of 10 LA 127 5 1 RQQHFWRU LA 391 RG...

Страница 85: ...79 LA 140 LT 82 Design Guide Design Guide LA 140 Notes...

Страница 86: ...80 LA 140 LT 82 Design Guide Design Guide LA 140 Notes...

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Страница 91: ...ick Reference Page 90 Setup Instructions 91 Operating Instructions 95 Locking Instructions 101 Programming Instructions 102 Programming Examples 107 Programmable Features Detailed Descriptions 110 DWW...

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Страница 93: ...f RF signal 40 db SNR Compliance FCC Part 15 Industry Canada CE RoHS Audio All system specifications are wireless end to end System Frequency Response 63Hz 15kHz 3dB System Signal to Noise Ratio A wei...

Страница 94: ...05 stability 0 to 50C Squelch Automatic on loss of RF signal 40 db SNR Compliance FCC Part 15 Industry Canada CE RoHS Audio All system specifications are wireless end to end System Frequency Response...

Страница 95: ...ess to turn unit on press and hold to turn unit off 6HOHFW XWWRQ Press to change the channel also used with programming function KDQQHO QGLFDWRU V Displays which channel the unit is currently tuned to...

Страница 96: ...annel also used with programming function KDQQHO QGLFDWRU V Displays which channel the unit is currently tuned to Also can display battery level etc 9ROXPH RQWURO LDO Use to adjust volume level in spe...

Страница 97: ...partment and push towards the bottom of unit Remove alkaline battery compartment Open by pulling into two pieces using the grips on the top of the compartment Open battery compartment Insert two AAA a...

Страница 98: ...se if desired Remove alkaline battery compartment Place LA 364 battery pack in receiver The unit will now recognize the rechargeable batteries and charge them correctly when unit is placed in a chargi...

Страница 99: ...ten receivers Make sure to push the connector all the way into the jack 4 Turn Unit On Turn the unit on by pressing either button on the front of the unit ATTENTION 1 The LR 44 model must have a heads...

Страница 100: ...nformation Single Channel Systems 5C In systems that require the receivers to be able to access more than one channel you must decide which type of channel selection method you want enabled The defaul...

Страница 101: ...n the bottom of the unit Either mono or stereo connectors may be used with Listen receivers Make sure to push the connector all the way into the jack Connect an Earphone or Headset LR 44 Model Only 2...

Страница 102: ...d pull on the lanyard adjustment ball to decrease the size of the lanyard loop bringing the XQLW FORVHU WR WKH XVHU V FKLQ 7R LQFUHDVH WKH VL H RI WKH ODQ DUG ORRS SXOO RQ WKH ODQ DUG cord above the p...

Страница 103: ...seek for a channel with signal present If none is IRXQG LW ZLOO FRQWLQXH VHHNLQJ XQWLO LW QGV D VLJQDO 1RWH WKDW LI WKH XQLW KDV EHHQ ORFNHG RQ its channel this lock will override Auto Seek Auto Seek...

Страница 104: ...LV locked on the current channel See page 101 for channel lock information Also if the unit skips over the desired channel it is because that channel has been locked out See page 102 for more informa...

Страница 105: ...channel indicator LEDs 2 The battery level will then display on the channel indicator LEDs for two seconds unless battery OHYHO LV OHVV WKDQ DERXW LQ ZKLFK UVW ZLOO DVK IRU YH VHFRQGV DFK OLW FKDQQHO...

Страница 106: ...ent Channel 8 Auto Shut Off Feature 1 After 10 seconds if there is no headset plugged into the headset jack LR 44 model only This allows for a quick battery status check without having to plug in a he...

Страница 107: ...6HOHFW EXWWRQ WR FKDQJH WKH FKDQQHO ZKHQ WKH XQLW LV ORFNHG WKH FKDQQHO LQGLFDWRU ZLOO DVK IRXU WLPHV DQG WKH XQLW ZLOO QRW FKDQJH FKDQQHOV ROORZ WKH ORFN XQORFN SURFHGXUH VKRZQ DERYH to be able to ch...

Страница 108: ...eep mode While in Program Mode 1 2 3 4 Press and hold the Power and Select buttons for three seconds KHQ SURJUDP PRGH LV HQWHUHG DOO IRXU V ZLOO DVK RQFH LQGLFDWLQJ VXFFHVVIXO HQWU LQWR SURJUDP PRGH P...

Страница 109: ...ereo is ON GHIDXOW RII 2 Channel Lock Out Advances to Feature 3 Enters Channel Lock Out Sub Mode See next page for instructions 3 Auto Seek Advances to Feature 4 Toggles Auto Seek On Off LED 4 illumin...

Страница 110: ...o regular mode the Auto Seek function will be the selected feature 3 Channel Lock Out Sub Mode Functionality Diagram Channels Active 5HFHLYHU LVSOD 6KRZV Navigating within the Channel Lock Out Sub Mod...

Страница 111: ...tment Sub Mode Functionality Diagram Use this chart to help with navigating through and adjusting the channels active within the Squelch Adjustment Sub Mode LED on LED off Squelch Setting 5HFHLYHU LVS...

Страница 112: ...ode select the Reset to Defaults function and press the power button 2 7KH XQLW ZLOO DVK WKH FKDQQHO LQGLFDWRU V WKUHH WLPHV DQG WKHQ VKXW GRZQ ZKHQ UHVHW 3 Exiting Program Mode Wait 10 seconds withou...

Страница 113: ...2 Enter Program Mode 1 KHQ SURJUDP PRGH LV HQWHUHG WKH UVW IXQFWLRQ LV DFWLYH DQG WKH V ZLOO VKRZ Using the functionality chart on a previous page note that this is the Stereo On Off Function 2 I wan...

Страница 114: ...he Select button to scroll through the 15 possible combinations of active locked out channels until the unit displays 6 Press the Power button to save this setting and return to regular program mode 7...

Страница 115: ...Q WKUHH WLPHV VR WKH V VKRZ Note that this is the Squelch Adjustment Function 3 1 2 3 Press the Power button to enter the Squelch Adjustment Sub Mode 4 8SRQ HQWU WR WKH 6TXHOFK GMXVWPHQW 6XE 0RGH WKH...

Страница 116: ...ange the channel on the receiver in each new area Also if it is desired that the Select button act as a seek button instead of a manual scroll to the next channel button Auto Seek should be enabled If...

Страница 117: ...be used 2 How to Charge Batteries Install LA 364 rechargeable NiMH Battery Pack QVWDOO UHFKDUJHDEOH 1L0 DWWHU 3DFN WR UHDU RI UHFHLYHU 7KHUH DUH WZR ZD V WR FKDUJH WKH 5HFKDUJHDEOH 1L0 DWWHU 3DFNV ZL...

Страница 118: ...ng Information 2 3 1 2 3 4 When the receiver is fully charged the red LED will turn off and a green LED will light up to indicate unit is fully charged The green LED will stay lit until unit is remove...

Страница 119: ...Conversion Plates to charging tray QVWDOO DWWHU 3DFN RQYHUVLRQ 3ODWH WR FKDUJLQJ WUD RI FRQYHUVLRQ SODWHV included with LA 350 When the battery pack is seated correctly a red LED will light up on the...

Страница 120: ...pack is removed from the charging station When the battery pack is fully charged the red LED will turn off IMPORTANT When not using your LR 42 LR 44 Receiver it is recommended to keep the receiver on...

Страница 121: ...HU 3DFN requires LA 350 Charging Station LA 351 8 Unit IR Receiver Storage Station LA 350 8 Unit IR Receiver Charging Storage Station LA 364 required LA 150 Replacement Lanyard for LR 44 FFHVVRULHV LA...

Страница 122: ...116 LA 140 LT 82 Design Guide Design Guide LR 42 44 Notes...

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Страница 127: ...Rack LA 350 Quick Reference Card LVWHQ RQ JXUDWLRQV LA 350 01 North America 8 LA 350 03 Euro LA 350 351 User s Manual Table of Contents 6SHFL FDWLRQV DQG HDWXUHV 6SHFL FDWLRQV DQG HDWXUHV LA 350 Charg...

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Страница 129: ...C Industry Canada CE RoHS Controls User Controls None Indicators Bicolor LED Red when charging Green when charging is complete Power Supply Type In line switching mode power supply Listen part number...

Страница 130: ...Rack Specifications LA 351 Compliance Safety Compliance FCC Industry Canada CE RoHS Controls User Controls None Power Electrical None Physical Dimensions H x W x D 1 50 x 13 60 x 5 40 in 38 x 345 x 13...

Страница 131: ...t have an LA 364 Rechargeable DWWHU 3DFN IRU HDFK UHFHLYHU 7KH ZLOO QRW FKDUJH 1L0 EDWWHULHV SODFHG LQVLGH the alkaline battery pack that comes with the receiver The LA 364 battery packs can be charge...

Страница 132: ...receivers in charging slots It may be necessary to press down on the units to ensure that they are touching the charging contacts Place receivers in charging slots 1 2 3 4 LA 350 Charging Requirement...

Страница 133: ...rging When units begin to charge a red LED will come on near the charging slot This LED will stay lit until the receivers are fully charged Verify batteries are charging 5 Verify full charge When the...

Страница 134: ...351 Cord Tidy Rack The Cord Tidy Rack The Cord Tidy Rack can be used if desired to help with organizing the lanyard cords of the LR 44 receiver during charging or storage Insert the tidy rack into th...

Страница 135: ...129 LA 140 LT 82 Design Guide Design Guide LA 350 351 Notes...

Страница 136: ...130 LA 140 LT 82 Design Guide Design Guide LA 350 351 Notes...

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Страница 141: ...0 LT 82 Design Guide Design Guide Supplementary Supplementary Information Table of Contents Troubleshooting 133 Frequently Asked Questions 135 Compliance Information 137 Warranty 137 Contacting Listen...

Страница 142: ......

Страница 143: ...duction in IR output power from the radiator Make sure to always design the system using the IRRWSULQW VSHFL FDWLRQV IRXQG LQ WKH GHVLJQ JXLGH OVR LQ D PXOWL UDGLDWRU DSSOLFDWLRQ WKH GHOD switch setti...

Страница 144: ...W LV LQ XWR 6HHN PRGH DQG LV QRW QGLQJ D VLJQDO RQ WKH FKDQQHO RX DUH trying to tune the unit to See page 102 for more information about Auto Seek mode The second is that the unit is programmed to not...

Страница 145: ...FL FDWLRQ SURYLGHG E LVWHQ KDV DFFRXQWHG IRU RI WKLV GHJUDGDWLRQ ZKLFK RFFXUV at approximately 8 000 hours This is equivalent to three years of operating at eight hours per day Q If one of the LEDs on...

Страница 146: ...pressed the unit will automatically search for an active channel Refer to page 102 for more information about Auto Seek Mode Q How do I check the battery level on my receivers A When the unit is on pr...

Страница 147: ...returned within 90 days of purchase This warranty is void if damage occurred EHFDXVH RI PLVXVH RU LI WKH SURGXFW KDV EHHQ UHSDLUHG RU PRGL HG E DQ RQH RWKHU WKDQ D IDFWRU DXWKRUL HG service technician...

Страница 148: ...n 14912 Heritagecrest Way OXIIGDOH 8WDK 8 6 1 801 233 8992 1 800 330 0891 North America 1 801 233 8995 fax www listentech com Printed in the United States of America 2008 Listen Technologies Corporati...

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