JVC HD-52G586 Projection Television User Manual
Contents
1. LR 42 LR 44 LR 300 LR 400 LR 500 LR 600 to be free from defects in workmanship and matenal under normal use and conditions for the useful lifetime of the product from date of purchase Listen warrants its Stationary IR Radiators LA 140 to be free from defects in workmanship and materal under nomal use and conditions for three years from the date of purchase Listen warrants its Noise Canceling Microphone LA 270 to be free from defects in workmanship and matenal under normal use and conditions forone year from date of purchase Listen wamantsitsCharging Camying Cases LA 306 LA 311 LA 313 LA 317 LA 318 LA 319 LA 320 LA 321 LA 322 LA 323 LA 324 LA 325 to be free from defects in workmanship and materal under nomal use and conditions for one yearfrom date of purchase Allotherproductsand accessories are wamanted for 90 da ys from date of purchase This warranty is only available to the original end purchaser of the product and cannot be transfered Warranty is only valid if warranty card has been retumed within 90 da ys of purchase This warranty is void if damage occurred because of misuse or if the product has been repaired or modified by anyone other than a factory authorized service technician Warranty does not cover nomal wearand tearon the product orany other physical damage unlessthe damage wasthe result of a manufacturing defect Listen is not lia ble for consequential damages due to any failure of equipment to2. make sure the red LEDs never illuminate If you want a highly limited Signal tum the audio gain up so the red LEDs illuminate often TEST TONE Adjust Contour Adjust the Contour knob counterclockwise if your audio source is mostly voice Adjust the knob clockwise if your audio source is mostly music The Contour knob adjusts the relative equalization of the unit This equalization boosts or cuts frequencies above 5 kHz Adjust the mix level until the nght VU meter occasionally illuminates the red LED This is the level adjustment for the combined output from Input 1 and Input 2 If you are using another manufacturers receivers with the LT 800 determine the frequency of their receivers then refer to Listen s Frequency Compatibility Tables pages 15 16 to find the LT 800 channel that coresponds with the receiver s frequency We recommend venfying corresponding channel designations on these tables to ensure compatibility and provide the best possible reception The LT 800 is Phonak compatible and can be set to display Phonak specific channels See page 8 to set Channel Mode and page 14 for specific channel designations O AY CHANNEL SELECT Listen SQ Super Quiet improving Your Listening Experience People are accustomed to listening to low noise high fidelity audio delivered via CD DVD etc FM radio systems such as those made by Listen have more inherent noise compared to mos
3. 22 or the Listen contain a mix of Input 1 and match the level of your or line level input This website for details on antennas Input 2 They are unbalanced Input 2 audio source combination connector that can be attached here phono connectors and the not used to increase or accepts either XLR or Y output level is 10dBu decrease level by 10dBu phono plugs ANTENNA ONE INPUT 2 INPUT 1 ZEN RF POWER IT Oh mt 50 Ohms 12 VDC 113 A Select Line Mic or Mic Phantom 2 e EE Input 2 Connect Power Line is balanced 0 dBu page 9 for guidelines The Listen LA 201 unbalanced audio to these input level Mic is 55dBu 12VDC on setting power levels power supply phono connectors input supplied in PH Power position l connects here level 10dBu or 10dBu If not using input 1 leave in line position LT 800 Setup Instructions Unpack the Product Remove outer packaging and plastic cover Inspect for physical damage Mount in Rack if necessary If rack mounting the unit install the optional rack mount kit part LA 326 according to the instructions included with the kit then install the LT 800 in the rack NOTE If rack mounting you will need to use a rear connection antenna S se lge As Oo Listen 7 a Be Da amp Oo Rack Mount with single unit installed Rack Mount with dual unit installed Shown with LT 800 Connectthe antenna not included acco
4. AC power standards Input 100 240 VAC 50 60 Hz 0 4 A Power Output 12 VDC 1 3 A 15 6 W Output Connector 02 in 5 0 mm OD 01 in 2 5 mm ID barrel type UL CE GS TUV 1 75 x 8 50 x 9 13 in 4 5 x 21 5 x 23 cm Dark Grey with white silk screening 2 6 Ibs 5 7 kg geen 1415 C0Kg 5 0 Ibs 2 26 kg One 1 rack space height 1 2 rack space wide One 1 or two 2 transmitters can be mounted in one rack space Optional rack mount LA 326 Temperature Operation 10 C 14 F to 40 C 104 F Environmental Temperature Storage 20 C 4 F to 50 C 122 F 0 to 95 Relative Humidity non condensing Specifications are subject to change without notification Rack Mounting LI 800 Block Diagram CHANNEL SELECT SI O O E Down Listen LCD Display Backlighted MIX Level VU Meter MIX LEVEL Red x LED S 115VAC6 O 0 Hz provided 15VAC 1A Power Supply CPU Module Top Mounted Antenna Stud Remote Q Antenna Connection Transmitter RF Board Pre emphasis SQ O Compandin BNC j i ANTENNA Green LED Functions controlled by the CP Low A Cg High QO RF POWER Input 1 VU Meter 12VDC y 09 4 Input 1 Level Select Mic Phantom Pwr Mic Line Input 2 Level Select 10dBu 10dBu Mic On Line M Phantom Pwr Female XLR 1 4 Combo Connect 2 Tip 3 Ring 1 Sleeve INPUT 1 SQ DN ee 10dBu 10dBu ZA AN Phono INPUT 2 3 5MM Stereo ome A e HE
5. Wide Band Channels Example E Numbers Narrow Band Channels Example 32 At 216MHz The LT 800 at 216 MHz operates on 19 wide band channels and 38 nar row band channels 2 as left digit Wide Band Channel Example 2C 1 and 3 as left digits Narrow Band Channels Examples 1A 3R 72 MHz Compatbility Chart j I H De _ L 1 BEE TI O A EL IS A IS DS CB RS E E E E E GE O KE 23 a aj a IR a LL 72400 S NL LR NOLL 5 m 724 ean tp a e E AE E ALT ed LW Lem II E LE IG 0 E 725 CA Jo am ee E E ES Ge Ri EA EEE LS LS Le LGal LI 6 o jogo SL F 73 LS LG Lal LI LI BS LS LI ESE 2 We ie IR 0 060 a 6 727 Beet el i RAS LEE 2 eo E AA A A e zen A LE e I HA 728 ze LI EN po ERBEN al E Ee ELL HS 729000 S E E E ERW 18 1 728 ii BE N 7050 Sall en Pal Pak Es Zi CH SENSE Ser S ES falala Sek el Cl SS vi g 5 a d AH bt SS THE JI I Ee degen ER RE wel SR ER 1641 50 22 PT ee aan alas E a E GE cee CU TLA E TE o A del ef jja Jee es ITT TT LET PCR mr pb ro e EH Do D i EEE ER d d e A on EIS AE Wideband frequencies are indicated in highlighted rows The highlighted channels also indicated those channels available in the basic mode default All channels can be accessed
6. a A of s 7 a653 a 2 2 1 2165625 i 23 2 2165750 ay 5 se os m I m a658 at 24 e o gt I Ca NA Paes iM REES 216 6250 eM 5 ss 6 J m 8 2166375 am 2 si 216 6625 IN a7 e S i 216 6750 ONT 54 4 KR I 2166875 an 2 6 1 ana iP e 0 ca 7 2167250 CTC CCT AP mL 2167375 30 II 2167625 IR a La 1 2167750 RT 56 fs 6 6 4 2167875 rR 32 72 cs N Paar is 33 7 cs 2168250 es 57 6 7 e 216875 s a La Tr RATTE iT HERE E 65 EN HE HERE ER 2168750 ana III 2687s st 3 8 EE IO ER 2169125 ww TTT TE CH 2169250 au 2169875 su ER ES 216 965 wl TT TA 2169760 EE o fo oj SL 7 269875 av 4 so ca neo Wideband frequencies in highlighted rows Wideband frequencies are indicated in highlighted rows The highlighted channels also indicated those channels available in the basic mode default All channels can be accessed when in the expanded channel mode see page 8 for more information Phonak Frequency Chart Frequency MHz 216 012 1A 1 216 025 2A 41 216 037
7. and or to the ground of the source audio There isa tone The Test Tone button has been pressed its LED light is on Push the Test Tone button to tum off the tone The Audio Input 1 sounds tinny If you are using an unbalanced audio source make sure Pin 3 on the XLR orthe ring on the Ya plug is grounded see page 9 cannot pick up the signal on the receiver Check to make sure the receiver and the transmitter are using the same frequency band i e 72 MHz or 216 MHz and that they are on the same channel Make sure the LT 800 has an antenna connected Ensure that the receiverhasan antenna for portable products the headset isthe receiving antenna I can pick up the signal on the receiver but it sounds like it s not tuned in Check to make sure the transmitter and receiver are on exactly the same channel lt sa good idea to lock the channels once they have been set To lock the LT 800 press the UP button for 3 seconds see page 10 E E LT 800 Troubleshooting cont Troubleshooting I m using another brand of receiver how do tell which channel to use Refer to Listen s Frequency Compatibility Tables pages 15 17 Adjust Listen s transmitter to the same frequency asthe other major brand Since Listen products can access 57 channels they will most likely receive on the same fixed channel or channels of other major brands If you are using another brand of receiver make sure you have tumed off the SQ feat
8. perform as intended Listen shall bear no responsibility or obligation with respect to the mannerof use of any equipment sold by it Listen specifically disclaims and negates any warranty of merchantability or fitness of use of such equipment including without limitation any warranty that the use of such equipment for any purpose will comply with applicable laws and regulations The terms of the warranty are govemed by the laws of the state of Utah In the first ninety days after purchase any defective product will be replaced with a new unit After 90 days Listen will at its own discretion either repairor replace transmitters and receivers with a new unit ora unit of simila r type and condition Product that isnot covered under warranty shall be repaired orreplaced with a unit of similartype and condition based ona flat fee Contact Listen for details This limited warranty pricesand the specifications of products are subject to change without notice Contacting Listen If technical service isneeded please contact Listen Pre authonzation is required before retuming Listen products If products were damaged in shipment please contact the camer then contact Listen for replacement or repair requirements payable by the camer Listen s corporate headquarters are located in Bluffdale Utah U S A and are open Monday through Frida y 8
9. the least amount of interference Unless you are interfacing with an existing namowband transmission system always use a wide band channel If you are using multiple channels follow this process 1 Same Space If you are using multiple transmitters in the same space the highest number of channels that will work simulta neously is six at 72 MHz and three at 216 MHz With all of the transmitters off listen for interference on all the wide band channels with a Listen receiver Using the frequency compatibility tables on pages 15 17 eliminate any channels that have noticeable interference Now choose the channels with the widest channel spacing It is recommended that adjacent channels be spaced at least 300k Hz apart If there is no interference the following channels are recommended Fora 72 MHz system use channels A C E I J and H Fora 216 MHz system use channels 2A 2K and 2V 2 Distributed Spacing If you are using transmitters that are distributed overa large area you can achieve more simultaneous broadcast channels However it is critical that your receiver s be located as Close to its transmitter as possible You can use adjacent channels see frequency compatibility tables on pages 15 17 in this case aslong asthe adjacent channel tra nsmitter is at least 50 further away from the receiverthan the onginal tra nsmitter Example The transmitter for the receiveron channel E is 100 feet from the receiver The adjacent channel transm
10. when in the expanded channel mode see page 8 for more information alalalalala EES ke E CS Ska Els E e Lo lle tal ale LE emie pal pl EE h 2 O 3 3 y e 2 F fe gt y D CSS SSES E EE OT Parenthesis indicate T35 and T20 narrowband ELLO ICI IC IC IL CEL II IS IS dla 15 p E UO g 2 g e UO 16 216 MHz Compatibility Chart Frequency Phonic Light MHz Listen Ear Comtek Phonak Williams Gentner CSI AVR Speed Peo IAT I TTT NT 2160250 A 4 a4 a4 17 77 a607 A 2 2 Dre 216 06 ie 3 a SS 2160750 mem 2 2 2 2 of 2160875 se 4 a _ Y 1 armas ic 5 6 os 2161250 een 3 4 a aA 3 foi Paes sc 6 2 _ 21616 1D 7 23 id 2161750 eon 44 44 a e a a687 3D e 8 _1 2162125 ie 9 9 _ __ _oo9_ Noo _ 2162250 Een 4 4 6 cls 2 2162875 se 0 2 EE 216 265 iF 2 2162750 er 4 4 bp ae mL 7 216 2875 oF 2 12 c2 m arar iG 3 S 2163250 een 47 a 47 e 7 7 26s se a 2 i 21636 w e a _ 2163750 48 48 4 Fo 8 of 7 2163875 aa 16 16 I ce mie Paes i vw tr if TA 216 450 wn 4 eje pi 7 26a 3s 18 1 2165125 IK 21 2165250 kn ET EI
11. 3A 2 216 062 1B 21 216 075 2B 42 216 088 3B 4 216 113 1C 5 216 125 2C 43 216 137 3C 22 216 162 1D 23 216 175 2D 44 216 188 3D 8 216 213 LE 9 216 225 2E 45 216 238 3E 24 216 262 1F 25 216 275 2E 46 216 287 3F 12 216 312 1G 13 716 325 2G 47 216 338 3G 26 216 363 1H 27 216 375 2H 48 216 387 3H 16 216 412 1 17 216 425 2 49 216 438 3 18 216 512 1K 61 216 525 2K 29 216 537 3K 62 216 562 1L 28 216 575 2L 52 216 588 3L 64 216 613 1M 65 216 625 2M 53 216 637 3M 81 216 662 IN 82 216 675 2N 54 216 688 3N 68 216 713 1P 69 216 725 2R 55 216 738 3P 83 216 762 1R 84 216 775 2R 56 216 787 3R 72 216 812 1S 73 216 825 25 57 216 838 3S 76 216 863 1T 85 216 875 2m 58 216 887 3T 86 216 912 1U TI 216 925 2U 59 216 938 3U 88 216 963 1V 79 216 975 2V 60 216 988 3V 80 Wideband frequencies are indicated in highlighted rows The highlighted channels also indicated those channels available in the basic mode default All channels can be accessed when in the expanded channel mode see page 8 for more information 17 9 fe 3 Lo DI p S E 9 D a LI 800 Troubleshooting Troubleshooting The LF800 has no power Make sure the LA 207 power supply is connected to a power source and isconnected to the jack marked Power Input Make sure the POWER button Is pressed in There is no audio or the audio level is too low Make sure that your audio source is propeny connected to Inpu
12. 800 transmitter is authorized by rule under the Low Power Radio Service 47 C F R Part 95 and must not cause harmful interference to TV reception or United States Navy SPASUR installations You do not need an FCC license to operate these transmitters These transmitters may only be used to provide auditory assistance to persons with disabilities persons who require language translation or persons in educational settings health care services to the ill law enforcement tracking services under agreement with a law enforcement agency or automated matme telecommunications system AMTS network control communications Two way voice communications and all other types of uses not mentioned above are expressly prohibited This device must be installed by a trained audio professional or certified dealer of Listen The user can t make any modifications to the unit without expressed written consent of Listen Technologies Corporation Any modifications made will void the FCC compliance Listen warranty and the users authority to operate Listen s equipment FCC Statement This equipment has been tested and found to comply with the limits fora class B digital device pursua nt to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and i
13. ADPHONE Si IN i y ch e Ch Volume a Compression Ratio internal adjustment ig Processing CONTOUR PROCESS AN Test Tone Button Front Panel oer P ON NE NS Red LED Phono 400Hz MIX OUTPUT TEST TONE LT 800 Quick Reference LT 800 Front Panel Controls amp Displays Top mount antenna connection Indicates Remove rubber plug and screw Process Mode antenna in place is active Indicates LCD Shows Adjust audio input levels Indicat dio input Super Quiet which channel l l of input 1andinput2 level of Input 1 and mode is active is selected a here See page 11 for Input 2 shows adjust volume more information nn PUT MONITOR titen mmh T un Kaz 0 y em H y PROCESS SQ II geg AL INPUT LEVELS no MIX LEVEL CONTOUR oy HO d 2 y Q a x Y 5 O zi es POWER TEST TONE CHANNEL SELECT Power e Mix Level Adjust so ON OFF Test Tone Activatess the Mix Level meter DS Channel Select Up Channel Select Down atone to aid system occasionally lights Contour Equalization Press for 3 seconds Press for 8 seconds to setup the red LED adjustment Turn to lock on current enter program mode counter clockwise for a See page 8 for more voice and clockwise for information music LT 800 Back Panel Connections Settings Input 1 Used for balanced Remote Antenna Connection Mix Output These connectors Input 2 Set switch to connection of a microphone See page
14. Li ren Users Manual www llstentech com LT 800 072 Stationary FM Transmitter LT 800 216 Stationary FM Transmitter niss a single sound SCENE ION TECHNOLOGY CY MODULA DearValued Customer Thank you forchoosing Listen Allof usat Listen are dedicated to providing you with the highest quality products available We take great pnde in their outstanding performance because we care that you are completely Satisfied That s why we independently certify them to the highest quality standards and back them with a limited lifetime guarantee We stand ready to answer any questions you might have during installation or in the operation of our products Should you expenence any problems whatsoever with your Listen products we are ready to help you in any way we can with prompt efficient customer care Because at Listen it s all about you And should you have any comments on how we might improve our products or our service we re here to listen Here s how to reach us 1 801 233 8992 1 800 330 0891 north America 1 801 233 8995 fax support listentech com www listtentech com Thank you and enjoy your listening expenence Best regards Russell Gentner and the Listen Team e In the few instances where repairs were needed 99 of all clients indicated that they were happy with repairtum around times and 85 of the time clients were without their product for less than 10 days Overall client satisfaction of work
15. NC Connector LA 261 Lavalier Microphone LA 277 Conferencing Microphone LA 276 Collar Microphone NOTE To use Listen microphones you must use a converter LA 280 to adapt the 3 5 mm connection to a 1 4 phono connection LA 113 RG 8 50 Ohm Low Loss Coaxial Cable per ft LA 390 RG 8 50 Ohm Preassembled Coaxial Cable per ft Microphone Accessones LA 262 LA 270 Over the Head Microphone LA 278 Behind the Head Microphone Noise Canceling Microphone LA 127 RG 58 BNC Connector LA 391 RG 58 50 Ohm Preassembled Coaxial Cable per ft LA 274 Hand Held Microphone Pr LA 279 Over the Ear Microphone Presentation Style Yain to 3 5mm Microphone Adapter for LT 800 LI 82 3 S Ej Notes Notes Notes www listentech com Listen TechnologiesCorporation 14912 Hentagecrest Way Bluffdale Utah 84065 4818 U S A 1 801 233 8992 1 800 330 0891 North America 1 801 233 8995 fax www listtentech com Printed in the United States of Amenca 2008 Listen Technologies Corporation All Rights Reserved 011108
16. T Channel Select UP and DOWN buttons NOTE The LF800 is shipped with only limited channels Basic Mode To select from all channels Expanded Mode referto page 12 fora more detailed description of Basic and Expanded Mode referto page 12 Lock on Channel Once you determine your transmit channel you can lock the transmitter on that channel To locka channel hold the Channel Select Up button for 3 seconds until the padlock icon appears on the display To unlock repeat this process and the padlock icon will disappear Lock icon ES Test Tone if necessary To broadcast a test tone pressthe test tone button This helps to test receivers when no audio source is avalla ble INPUT HOE POWER TEST TON Press Test Tone button here LT 800 Audio Control Adjust Audio Input Level Adjust the input knob counterclockwise to add gain to Input 1 This will decrease gain to Input 2 Adjust input knob clockwise to add gain to Input 2 This will decrease gain to Input 1 If you have two audio sourcesconnected to both Input 1 and 2 adjust the level of one input using the VU meter then adjust the output level of the other audio source Adjust the input level until the left VU meter s occasionally illuminate the red LEDs Illumination of the red LEDs indicates the unit is in limiting Limiting is required so that the unit does not over modulate the transmitter If you don t want any audio limiting to occur
17. am to 50m Mountain Time 14912 Heritagecrest Way Listen Technologies GmbH Bluffdale Utah 84065 4818 J asminstr 16 90522 Oberasbach Germany 1 801 233 8992 49 911 955 159 0 Europe 1 800 330 0891 North America 49 911 955 159 40 Fax 1 801 233 8995 fax support listentech de www listentech de support listentech com www listentech com 3 S Ej 21 Optional Accessones Antenna Accessones LA 101 LA 102 LA 106 Helical Top Mounted Antenna Telescoping Top Mounted Telescoping Top Mounted 72 MHz Antenna 216 MHz Antenna 72 MHz LA 107 LA 123 Ground Plane Remote Antenna LA 122 90 Helical Antenna 216 MHz Universal Antenna Kit 72 MHz The single solution for all of your indoor remote antenna needs Includes 72 and 216 MHz ne components flexible and rigid dipoles and monopole radials hardware for multiple mount ing configurations and 25 feet 7 6m of RG 58 coax cable LA 124 90 Helical Antenna 216 MHz LT 800 Rack Mount Accessories id A LA 125 72 MHz and LA 126 216 MHz LA 326 Antenna Kit for Rack Mount Universal Rack Mounting Kit Includes components for single and dual rack configuration and a secunty cover NOTE Rack mounted units cannot use the LA 106 LA 102 or LA 101 top mounted antenna E E 22 Optional Accessones cont Cable Connectors Accessones LA 112 RG 58 50 Ohm Coaxial Cable per ft RG 8 B
18. atures With the unit on press and hold the channel select Down button for 8 seconds The program PGM icon willappearon the LCD Once in the program mode the SQ and Process featurs can be tumed on and off by pressing the channel select buttons Press the channel select Up button to toggle between Process On and Off Press the channel select Down button to toggle between SQ On and Off LED lit when Process is enabled If the green LED is displayed on the front panel that feature isenabled Once you have enabled or LED lit when H disabled the features as desired let the transmitter SENGES a exit the program mode by waiting 5 seconds AI LT 800 Setup Instructions cont Set RF Power Set the RF POWER switch on the back of the unit to Full 1 2 or 1 4 Level is indicated on the LCD display The amount of transmitted RF power that you willneed dependson your application If you are operating multiple transmitters in the same environment it is best to set the transmitters output power to its lowest level to reduce the possibility of interference Connect Audio Inputs The LT 800 has two audio input options Input 1 and Input 2 Input 1 isa balanced connection using eitheran XLR or 1 4 phono connector Input 2 hastwo unbalanced mixing phono connectors Use Input 1 if you are using a microphone or if you have a balanced connection such asfrom a professional audio mixer you
19. can also use Input 1 for unbalanced connections Use Input 2 to connect to an unbalanced audio source Input 1 Connect the audio source s to one or both audio input connections Input 1 offersa choice of balanced XLR or 1 4 phono connector INPUT1 if d a Line MIC PH PWR LINE MIC Back of LT 800 with XLR connected to Input 1 1 Plug your microphone into Input Land move Mic the input select switch to Mic fordynamic microphones or Mic PH Power for condenser microphones Mic with Phantom Power MIC PH PW LINE 2 INPUT2 POWER INPUT RF POWER INPUT1 MIC PH PWR LINE MIC Plug yourbalanced orunbalanced audio source into Input 1 Use the following diagram a 1 4 Phone Wiring NS Input from Balanced Unbalanced Audio Audio AA Audio from Source Source Tip Ring Tip Ring Sleeve Balanced Unbalanced Audio Audio Source Source Input 2 INPUT 2 Plug your unbalanced audio source into Input 2 and select the audio level switch for 10dBu or 10dBu to match the audio level coming E from your equipment 3 5 y 2 je LT 800 Operating Instructions Power Unit On Tum power on by pressing the power button Select a Channel Select the transmit channel by pressing the channel select UP and DOWN buttons See Channel Selection on page 14 for more information MONITOR CHANNEYSELEC
20. en a speakers emphasis is critical to the message they are conveying Basic and Expanded Mode In the default Listen channel mode only the most commonly used channels are avalla ble This is called Basic Mode When the LT 800 isin Basic Mode L O lock out will be displayed on the LCD meaning some transmission channels are unavailable If the channel needed is not available in Basic Mode accessto all transmission channels is achieved in Expanded Mode To access Expanded Mode pressand hold the channel select down button while powering on the unit To retum to Basic Mode repeat the same process of powerng on the unit while holding the down button SQ Summary e SQ is NOT squelch e SQ improves noise performance by at least 20dB e SQ is NOT compatible with older version Listen products e SQ is NOT compatible with other manufacturers products To work properly SQ must be enabled for both the transmitter and receivers SQ can be disabled to permit operation with older Listen products or other manufacturers products RF Reception Maximization Strategies Forproperand dependable operation Listen receiversneed to receive a strong and consistent signal from the onginating transmitter Note that on portable receivers the headset wire is the receiving antenna The following strategies should be used maximize this signal E When designing and installing your system keep in mind tha
21. f not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause hammful interference to radio or television reception which can be determined by tuming the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reonent or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealeroran expenenced radio TV technician for help This equipment has been certified to comply with the limits fora class B computing device pursuant to FCC and IC Rules In orderto maintain compliance with FCC and IC regulations shielded cables must be used with this equipment Operation with non approved equipment or unshielded cables is likely to result in interference to radio and TV reception The user is cautioned that changesand modifications made to the equipment without the approval of manufacturer could void the users authonty to operate this equipment E E 20 AAA Warranty amp Contacting Listen Warranty Listen Technologies Corporation Listen wa mants its transmitters and receivers LT 82 LT 700 LT 800 LR 100
22. ing with Listen wasrated 4 8 out of 5 Please continue with your excellent attitude toward customer satisfaction You guys are great I ve never had such good service from any company Keep up the good work You stand behind your product wonderfully Assistive Listening e Language Interpretation Soundfield e TourGroup Conferencing apino ubseq LT 800 Table of Contents 4 Package Contents a Specifications S Architectural Specifications d Specifications Block Diagram OG A Quick Reference 6 g Setup Instructions 7 d Operating Instructions 10 Audio Control 11 S Listen SQ Super Quiet 12 7 RF Reception Maximization Strategies 13 3 Coaxial Cable 13 o Channel Selection Compatibility C harts 72 MHz Frequency Compatibility Chart 216 MHz Frequency Compatibility Chart Phonak Frequency Compatibility Chart if E xe i e e e D Ke ui g ch g 5 g ch e D Supplementary Information 18 Troubleshooting 18 Compliance Notice 20 FCC Statement 20 Warranty 21 E Contacting Listen 21 d Optional Accessones 22 uonds 23 J4 suey uiqneduo uop2etee ouuey y uopeuuoju LI 800 Package Contents guquo ae ed Listen Part Number LT 800 072 72 MHz LT 800 216 216 MHz LT 800 Contents LT 800 072 72 MHz or LT 800 216 216 MHz or 12 VDC Power Supply User Manual Optional Ac cessones See page 22 di E e P 0 HM Q A LT 800 Spec if a
23. itter on channel D should be at least 150 feet away It is highly recommended that after channel selection has been achieved you lock the channel so that it cannot be changed by the user To accomplish LOCK on the LT 800 pressthe UP button for 3 seconds Repeat the processto unlock Notes in regard to using 72 MHz and 216 MHz systems 1 72 MHz isa secondary frequency band This means that other tra nsmitters are licensed to use these frequencies Thus you ma y experience interference from paging transmitters and other types of transmissions You will need to find a clear channel by listening to all the wide band channels 2 216 MHz isa primary frequency band and no other types of transmissions are authonzed to use it Thus you will find the highest probability of clear channels in this band However you may expenence intermodulation of the TV Channel 13 aural camer if there isa channel 13 transmitter in your area and you are close to the transmitter If you cannot find a clear channel in 216 MHz band due to channel 13 it is recommended that you switch to a 72 MHz system Wide Band Recommendation Listen recommends that you always use a wide band channel unless you need to be compatible with existing narrow band receivers from other manufacturers Wide band channels have lower noise than their narrow band counterparts At 72MHz The LT 800 at 72 MHz operates on 17 wide band channels and 40 narrow band channels Letters
24. lity into the LT 800 216 it is more convenient to use Phonak receivers with Listen transmitters www phonak com LT 800 Setup Instructions cont To Select Phonak Mode Press and hold down the channel select up button while powering on the unit The LCD will display a P momentanly upon power up indicating that the transmitter is in the Phonak Channel Mode The channels displayed will now match Phonak channels To retum to the Listen channel designations repeat this process The LCD will display an L momentanly upon power up indicating that you are in the Listen Channel Mode D Select Channel Mode if necessary Your transmitter has been shipped to you with only a limited number of channels available Basic Mode If all channels Expanded Mode are required use the following procedure To Select Expanded Mode To enable or disable the Expanded Mode press and hold the channel select down button while powenng on the unit When the Basic Mode is enabled L O lockout will be displayed on the LCD display as shown below This indicator is extinguished when in the Expanded Mode Uu E e LG S l 2 3 A Set SQ Super Quiet and Process Features Your transmitter is shipped to you with SQ super quiet enabled and Process disabled For a detailed description of these features and when to use them please referto page 12 To Disable or Enable SQ and Process Fe
25. nbalanced 10 10 dBu nominal input level P adjustable 30 dBu maximum impedance 100k Ohms Audio AN Process AZ can be turned on off Slope internally adjustable from 1 1 to 4 1 Default 2 1 Contour Cuts and boosts Po Cuts and boosts frequencies above5kHz si isi zi s s s above 5 kHz Conibined Audio Output Mix Input 1 and Input 2 Mixed Output Rear Panel Two 2 phono connectors unbalanced 10 dBu nominal output level P 19 dBu maximum impedance 10 ohm Headphone Output Monitor Front panel One 1 3 5 mm stereo connector unbalanced adjustable output level 7 maximum impedance 10 Ohm Power Test Tone on off Channel UP DOWN Input levels Mix level Contour Monitor volume control ns Rear Panel Input 1 Level line mic mic phantom power Input 2 Level 10 10 dBu RF Power low mid high Audio Input 1 Controls l f Internal pedu U Compression ratio for audio processor Programming SQ on off Processing on off Channel lock EE 1 and Input 2 Mix VU Indicates Input 1 Input 2 and Mix audio levels 10 segment LED s 8 green 2 red SQ and KREE Indicated by a green LED when on front panel Indicators RF IRF Power Indicated on the LCD low mid high LCD ESD Ditty Channel designation lock status RF Power Level programming front panel Test Tone Tone Red LED illuminates when test tone enabled In line power supply Listen part number LA 207 Line cord is determined by each country s
26. pplications or to maximize broadcast range Listen recommends that you use RG 8 cable rather than RG 58 RG 8 isa lower losscable meaning that more of your signal will reach the antenna Long cable runs can result in signal degradation due to the loss charactenstics of the cable When using RG 58 with a 72 MHz transmitter there isan average loss of 4 dB per 100 feet of cable and at 216 MHz using RG 58 an average loss of 8 dB per 100 feet of cable A 3dB loss means half of your power has been lost However it is better to suffer coaxial power loss than to try to shoot your signal through obstacles Obstacles especially metal can create drop outs or reflections of your signal that will result in poor listening conditions u 6 9 E O 5 NOTE There are many vaneties of 50 ohm RG 58 and RG 8 cables You may purchase a cable that is better or worse than this value Please check with the cable vendor or manufacturer for exact specifications O r VH Be d S t d Channel Selection It is important to choose channels that are free from interference to achieve proper operation of your Listen equipment This process is tral and enor Before tuming on the transmitter listen to the wide band channels on the receivers lettered channels at 72 MHzand channels that start with a 2 for 216 MHz when using a Listen receiver Listen to the audio through the headphone or via the speaker and choose a channel with
27. rding to the installation instructions Only use an antenna supplied by Listen If you are connecting the antenna directly to the top of the LT 800 you will need to remove the rubber plug on top of the unit If you are using a remote antenna connected to the rear of the unit do not connect an antenna to the top connector See page 22 for antenna options or refer to the Listen website for remote antenna ana options www listentech com Connect Antenna I e d a Coax antenna connection Rear of LT 800 shown LA 122 Remote Antenna See RF Reception Maximization Strategies and Coaxial Cable on page 13 S d ng rubber plug LT 800 shown with top mount antenna connected through top of unit part numbers LA 101 LA 106 72 MHz or LA 102 216 MHz Connect Power Plug the power supply into the power connector on the back panel then plug the power supply into an outlet Only use a Listen approved power supply The LA 207 an in line switching power supply isthe approved power supply for this unit 50 Ohms ANTENNA Select Phonak Compatibility if necessary If you will be using Phonak receivers with your LT 800 216 MHz only the transmitter can become completely compatible through software control When switched to this mode the LT 800 transmitter will disolay the Phonak channels By integrating Phonak channels and compatibi
28. t 1 and or Input 2 The Input 1 or Input 2 switches must be in the correct position forthe appropnate input level For example if you are using the output of a mixer on Input 2 the switch should be in the 10dBu position If it were to be in the 10dBu position the level would be too low Also check the Input knob to ensure it is properly adjusted You should be able to see the VU meter deflect on Input 1 or Input 2 corresponding with the input level of the audio source You can listen to the audio source by connecting a headset to the front panel jack and adjusting the Monitor volume control If the level of audio into the transmitter is low and can t be corrected using the level input switches the audio processorcan be tumed on to boost the signal see page 8 to set page 12 for descnption of Process Mode The audio is distorted Check to make sure you have the input level select switches in the proper position You may be providing too much audio level for the input stage to handle Make sure the SQ mode is set correctly on both the LT 800 and the receivers you are using If your receivers do not have SQ make sure the SQ mode istumed off see page 8 There is hum in the audio Make sure you have propeny grounded the audio source to the LI 800 Check the connections from the audio source to the LT 800 If you can try to use a balanced audio source this will reduce the chance of creating hum Connect a ground wire from the LT 800 to ground
29. t sound systems To minimize noise Listen uses a noise reduction technology called ListenSQ Both the transmitter and receiver must have the SQ feature enabled to achieve the desired results SQ isavailable on new Listen systems including the system you received in this shipment If you are planning to use this product with older Listen systems that do not have Listen SQ or equipment not manufactured by Listen you must disable Listen SQ Your Listen LT 800 has been shipped to you with the SQ feature enabled You may need to disable the SQ function for one or more of the following reasons a You are using your new Listen LT 800 with older version Listen receiversthat do not have the SQ function You are using your new Listen LT 800 with equipment supplied by other manufacturers Listen is the only manufacturer using SQ Technology You expect that end users will bring and use their own receivers that don t have the SQ function NOTE See page 8 to enable or disable SQ Super Quiet Process Mode Process mode is used for Audio Gain Control AGC With the process mode enabled the LT 800 will automatically adjust for inc onsistent signal input levels by raising or lowenng the signal level accordingly to provide a consistent sound output level This feature should be used in applications where a consistent sound level is important and the input levels vary substantially Typically you would not want to engage the Process Mode wh
30. t the location of both the transmitting and receiving antennas is cntical to maximize broadcast range E Eliminate or minimize obstructions between the transmitting and receiving antenna CEN Minimize the distance between the transmitting and receiving antennas D Move transmitting and receiving antennas away from metalorconductive objects Place the transmitting antenna ashigh as possible D Onent both transmitting and receiving antennas vertically Position the RF Power switch on the back of the LT 800 to full RF Power unless lower power Is necessary see page 9 D Keep coaxial cable from transmitter to antenna as short as possible CAUTION When installing antennas ensure the antenna is clear of power lines Coaxial cable connectors and optional antenna mounting kits are available from Listen See page 22 23 visit www listentech com or ask your dealer for details Coaxial Cable The antenna forthe LT 800 can be mounted directly on the unit if desired However you may find that the unit will provide better performance when the antenna is located elsewhere If you plan to mount the antenna in a different location other than the top of the unit you must use cable and connectors rated at 50 ohms Although cable used forcable TV installations looks similar to this cable it will not work with your Listen system If you need to run cable overa length greater than 50 feet for 216 MHz applications or greater than 100 feet for 72 MHz a
31. ted The receiver is probably not designed to handle the 25 kHz deviation of the Listen transmitter This can be corrected by tuming the Mix Level knob down Another possibility is that you have enabled the SQ function of the LT 800 and this feature is not available in other companies products You will need to disable SQ in this event see page 8 If you are using Phonak receivers the transmitter is capable of operating in the Phonak mode please referto page 8 Several transmitters are operating in the same environment For this you ll need to choose your transmitting frequencies carefully See page 15 17 for more details Can I have two antennas connected to my transmitter No The LT 800 transmitter can use only one antenna connection ata time You may connect either a top mount antenna through the top antenna port ora remote antenna connected to the BNC connection on the rear of the unit If multiple antennae are simultaneously connected to both ports the transmitter will have extremely poor broadcast performance and range 3 S Ej Compliance Notice FCC Statement Compliance Notice This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 These devices may not cause harmful interference and 2 these devices must accept any interference received including interference that may cause undesirable operation Listen s LF800 Transmitter 216 MHz only Listen s LT
32. tions Architectural Specific ations The stationary FM transmitter shall be capable of broadcasting on 57 channels The transmitter Shall have a SNR of 80dB or greater The output power shall be adjustable to quarter half or full Channel tuning shall be capable of being locked The device shall broadcast on both wide and namow band channels The device shall have an audio frequency response of 63 Hz to 15k Hz 3dB at 72 MHz or of 63 Hz to 10k Hz 3dB at 216 MHz It shall have two mixing audio inputs The device shall have the following audio controls input level mix level and an adjustable low pass filter The device shall have an audio processor that iscapable of automatic gain control and limiting The Listen LI 800 is specified Specification Specifications LT 800 072 LT 800 216 005 stability 32 to 122 F 0 50 C 50 PPM Various Antennas available All system specifications are wireless end to end System Frequency Response 50 Hz 15 kHz 3 dB 50 Hz 10 kHz 3 dB System Signal to Noise Ratio A Weighted 80 dB SQ enabled 60 dB SQ disabled 80 dB SQ enabled 50 dB SQ disabled lt 2 total harmonic distortion THD at 80 deviation Rear panel 1 Female XLR and 14 in combo connector balanced 0 55 dBu line mic nominal input level adjustable 30 21 dBu line mic maximum input level impedance 20k 1k Ohms line mic phantom power 12 VDC Audio eee teeny Rear panel Two 2 Phono connectors u
33. ure on the Listen product s There is not sufficient range First make sure that the receivers you are using are operating propeny then make sure that you have an antenna connected either to the top of the LI 800 transmitter or connected to the back of the unit but not both The antenna should be ashigh as possible and free of obstacles In addition make sure you are using the correct antenna type for your unit You might want to use a remote antenna provided by Listen that can be mounted ona mast or wall Try using different frequencies to find one with less interference There ts interference in my tansmission Ensure that the transmitter and receivers are on the same channel Venfy that there are no other transmitters on the same channel ora close channel to the one exhibiting interference Try different channels until you find a clear channel If this does not work try a different frequency band i e if you are using 72 MHZ try 216 MHz or vice versa Please contact Listen support for assistance and a retum authonzation RMA numberto exchange product for altemate frequency equipment End users are adjusting the unit First lock the channel by pressing and holding the channel select UP button for 3 seconds Consider removing the Input Mix Level and Contour knobs You can ordera rack mount kit from Listen which offers a security cover that will limit access to the unit I am using other manufacturers receivers and the sound is distor
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